diff --git a/MCSLA/mcsla-core/.gitignore b/MCSLA/mcsla-core/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..586e15d0672f548400271508327f0b06c2ff604c
--- /dev/null
+++ b/MCSLA/mcsla-core/.gitignore
@@ -0,0 +1,127 @@
+/classes/
+*.class
+*.lst
+
+# Created by .ignore support plugin (hsz.mobi)
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+*.iml
+
+# User-specific stuff:
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/dictionaries
+
+# Sensitive or high-churn files:
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.xml
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+
+# Gradle:
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# CMake
+cmake-build-debug/
+
+# Mongo Explorer plugin:
+.idea/**/mongoSettings.xml
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+### Maven template
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+pom.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+
+# Avoid ignoring Maven wrapper jar file (.jar files are usually ignored)
+!/.mvn/wrapper/maven-wrapper.jar
+### Eclipse template
+
+.project
+.classpath
+
+.metadata
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+.recommenders
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# PyDev specific (Python IDE for Eclipse)
+*.pydevproject
+
+# CDT-specific (C/C++ Development Tooling)
+.cproject
+
+# Java annotation processor (APT)
+.factorypath
+
+# PDT-specific (PHP Development Tools)
+.buildpath
+
+# sbteclipse plugin
+.target
+
+# Tern plugin
+.tern-project
+
+# TeXlipse plugin
+.texlipse
+
+# STS (Spring Tool Suite)
+.springBeans
+
+# Code Recommenders
+.recommenders/
+
+# Scala IDE specific (Scala & Java development for Eclipse)
+.cache-main
+.scala_dependencies
+.worksheet
+
+#Windows specific
+*~
diff --git a/MCSLA/mcsla-core/.gitlab-ci.yml b/MCSLA/mcsla-core/.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..3e39e918e15d4230b18f24d3e79bcece218e8932
--- /dev/null
+++ b/MCSLA/mcsla-core/.gitlab-ci.yml
@@ -0,0 +1,25 @@
+image: maven:alpine
+
+variables:
+ MAVEN_CLI_OPTS: "--batch-mode"
+
+before_script:
+ - apk update && apk upgrade && apk add git
+ - git config --global user.email "$GITLAB_USER_EMAIL"
+ - git config --global user.name "$GITLAB_USER_NAME"
+ - git checkout -B "$CI_BUILD_REF_NAME"
+ - git pull origin "$CI_BUILD_REF_NAME"
+
+deploy_snapshot:
+ stage: deploy
+ only:
+ - master
+ script:
+ - mvn $MAVEN_CLI_OPTS clean deploy -Dmaven.test.skip=true
+
+deploy_release:
+ stage: deploy
+ only:
+ - release
+ script:
+ - mvn $MAVEN_CLI_OPTS -Darguments="-DskipTests" -DscmCommentPrefix="[ci skip] - " release:clean release:prepare -B release:perform
diff --git a/MCSLA/mcsla-core/LICENSE.txt b/MCSLA/mcsla-core/LICENSE.txt
new file mode 100644
index 0000000000000000000000000000000000000000..93084469804f79f4deda7ad5b9fbd9cfa0de8a0b
--- /dev/null
+++ b/MCSLA/mcsla-core/LICENSE.txt
@@ -0,0 +1,281 @@
+Copyright (C) 2018 Fraunhofer FOKUS.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the Eclipse Public License version 2.0.
+
+Eclipse Public License - v 2.0
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE
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+4. COMMERCIAL DISTRIBUTION
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+the Program in a commercial product offering, such Contributor
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+For example, a Contributor might include the Program in a commercial
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+5. NO WARRANTY
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+PERMITTED BY APPLICABLE LAW, THE PROGRAM IS PROVIDED ON AN "AS IS"
+BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR
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+including but not limited to the risks and costs of program errors,
+compliance with applicable laws, damage to or loss of data, programs
+or equipment, and unavailability or interruption of operations.
+
+6. DISCLAIMER OF LIABILITY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT
+PERMITTED BY APPLICABLE LAW, NEITHER RECIPIENT NOR ANY CONTRIBUTORS
+SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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+ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE
+EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
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+
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+applicable law, it shall not affect the validity or enforceability of
+the remainder of the terms of this Agreement, and without further
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+
+If Recipient institutes patent litigation against any entity
+(including a cross-claim or counterclaim in a lawsuit) alleging that the
+Program itself (excluding combinations of the Program with other software
+or hardware) infringes such Recipient's patent(s), then such Recipient's
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+Distributed subject to the version of the Agreement under which it was
+received. In addition, after a new version of the Agreement is published,
+Contributor may elect to Distribute the Program (including its
+Contributions) under the new version.
+
+Except as expressly stated in Sections 2(a) and 2(b) above, Recipient
+receives no rights or licenses to the intellectual property of any
+Contributor under this Agreement, whether expressly, by implication,
+estoppel or otherwise. All rights in the Program not expressly granted
+under this Agreement are reserved. Nothing in this Agreement is intended
+to be enforceable by any entity that is not a Contributor or Recipient.
+No third-party beneficiary rights are created under this Agreement.
+
+Exhibit A - Form of Secondary Licenses Notice
+
+"This Source Code may also be made available under the following
+Secondary Licenses when the conditions for such availability set forth
+in the Eclipse Public License, v. 2.0 are satisfied: {name license(s),
+version(s), and exceptions or additional permissions here}."
+
+Simply including a copy of this Agreement, including this Exhibit A
+is not sufficient to license the Source Code under Secondary Licenses.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to
+look for such a notice.
+
+You may add additional accurate notices of copyright ownership.
\ No newline at end of file
diff --git a/MCSLA/mcsla-core/README.md b/MCSLA/mcsla-core/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..c8b26c6565977ce963866c4a586717c3582fe4f5
--- /dev/null
+++ b/MCSLA/mcsla-core/README.md
@@ -0,0 +1,192 @@
+# MCSLA Core Library
+
+The MCSLA Core Library provides
+
+## Table of Contents
+1. [Features](#features)
+1. [Installation](#installation)
+1. [Getting started](#getting-started)
+1. [The Interface](#the-interface)
+1. [License](#license)
+
+## Features
+
+ * Support for different aggregation expressions
+ * Aggregation of cloud service SLAs
+ * Evaluation of a single cloud service SLA metric
+ * Evaluation of aggregated cloud services SLA metrics
+
+## Building from Source
+
+The project is available via Git repository. If you have access, do the following steps:
+
+```shell
+$> git clone https://gitlab.fokus.fraunhofer.de/DECIDE/mcsla-core.git
+$> cd mcsla-core
+```
+
+The project uses Maven as build tool. After build you will find the jar and a fat jar in the target directory. To build use the follwoing command:
+
+```shell
+$> mvn clean package
+```
+
+## Installation
+
+For non-Maven based projects you can take the build jar file located in the target directory after executing the build command and put it in the classpath of your application. There is also a fat jar provided containing all dependencies if required.
+
+For Maven based projects you need to install it in a Maven repository which your application can access. E.g. to put it in your local maven repository, you can simply call
+`$> mvn install`
+
+Finally, your application pom.xml requires the following dependency:
+
+```xml
+<dependency>
+ <groupId>eu.DECIDEh2020</groupId>
+ <artifactId>mcsla-core</artifactId>
+ <version>0.0.1-SNAPSHOT</version>
+</dependency>
+```
+
+## Getting started
+A small example how to create a metrics context and evaluate a cloud service objective:
+
+```java
+// create context
+MetricsContext context = MetricsContext.create(appDescription);
+
+// get sla service objective metrics for a apecific cloud service
+Map<String, ServiceObjectiveMetrics> metrics = context.getCsMetrics(csId);
+
+// get the service objectove metrics for a specific term name, e.g. "Availability"
+ServiceObjeciveMetrics availabilityMetrics = metrics.get("Availability");
+
+// now evaluate against a concrete monitoring result
+EvaluationResult<Double> evaluationResult = availabilityMetrics.evaluate(monitoringResult);
+
+if (!evaluationResult.isError()) {
+ log.info("condition met: {}, result: {}", evaluationResult.isConditionMet(), evaluationResult.getMeasurementResultValue());
+} else {
+ log.error(evaluationResult.getErrorMessage());
+}
+```
+
+For further examples please take a look at the test cases.
+
+## The Interface
+
+In general there are three main classes:
+ * [MetricsContext](#metricscontext)
+ * [ServiceObjectiveMetrics](#serviceobjectivemetrics)
+ * [EvaluationResult\<T\>](#evaluationresultt)
+
+### MetricsContext
+This class provides a static methods for creating context objects. Created context can be used to get service objective metrics of
+each SLA as a map. Furthermore, it contains a memory for cloud service evaluation results, so specific aggregation
+expressions can be implicitly applied. And finally, it allows the aggregation of service objectives or raw values.
+
+#### Aggregation
+The easiest way to use the MetricsContext is to aggregate some raw values:
+```
+List<Double> values = Arrays.asList(99.9, 99.8, 99.95);
+Double value = MetricsContext.aggregate(values, Predefined.AVAILABILITY_AGGREGATION_SUMTYPE);
+```
+See [Predefined](#predefined-aggregation-expressions) for available aggregation expressions.
+
+To start working with the library in the context of an application description you need to create a MetricsContext object:
+```java
+AppDescription appDescription = ...
+MetricsContext context = MetricsContext.create(appDescription);
+```
+You can now aggregate all agreement values of all cloud services for a specific term name:
+```java
+Double value = MetricsContext.aggregate(Predefined.AVAILABILITY_AGGREGATION_SUMTYPE, "Availability");
+```
+The return type depends on the predefined aggregation expression to be used.
+
+#### Evaluation
+The MetricsContext object has two methods for retrieving [ServiceObjectiveMetrics](#serviceobjectivemetrics) which are needed for evaluation:
+```java
+Map<String, ServiceObjectiveMetrics> appMetrics = context.getAppMetrics();
+Map<String, ServiceObjectiveMetrics> cloudserviceMetrics = context.getCsMetrics(csId);
+```
+The return value is a map of term names and corresponding metrics of either a specific cloud service or the application.
+Now you can get the [ServiceObjectiveMetrics](#serviceobjectivemetrics) object for a specific term name:
+```java
+ServiceObjectiveMetrics objectiveMetrics = appMetrics.get("Availability");
+```
+
+### ServiceObjectiveMetrics
+You need objects s of this class to evaluate the metrics. The class has the following evaluation functions:
+* evaluate()
+* evaluate(double[] measuredValues)
+* evaluate(int[] measuredValues)
+* evaluate(List\<Integer\> measuredValues)
+* evaluate(Map\<String, List\<Long\>\> measuredValues)
+* evaluate(double measuredValue)
+
+They all return a [EvaluationResult\<T\>](#evaluationresultt) object.
+
+The first one without passing any monitoring results utilizes the memory function of the metrics context. It therefore requires that each monitoring result to be aggregate must be evaluated beforehand.
+This makes sense where you have to evaluate first each cloud service metrics and then the aggregated application metric:
+```java
+Map<String, ServiceObjectiveMetrics> cloudserviceOneMetrics = context.getCsMetrics("1");
+ServiceObjectiveMetrics oneMetrics = cloudserviceOneMetrics.get("Availability");
+EvaluationResult<Double> resultOne = OneMetrics.evaluate(99.9);
+...
+Map<String, ServiceObjectiveMetrics> cloudserviceTwoMetrics = context.getCsMetrics("1");
+ServiceObjectiveMetrics twoMetrics = cloudserviceTwoMetrics.get("Availability");
+EvaluationResult<Double> resultTwo = twoMetrics.evaluate(99.9);
+...
+Map<String, ServiceObjectiveMetrics> appMetrics = context.getAppMetrics();
+ServiceObjectiveMetrics availabilityMetrics = appMetrics.get("Availability");
+EvaluationResult<Double> resultApp = availabilityMetrics.evaluate();
+```
+
+### EvaluationResult\<T\>
+The first thing you should do is to check if the evaluation was successful:
+```java
+EvaluationResult<Doube> result = ...
+if (result.isError()) {
+ log.error(result.getErrorMesssge());
+} else {
+ ...
+}
+```
+A successful evaluation result contains the following information:
+* The evaluation date and time
+* The underlying term name
+* The measurement result value
+* The used condition statement
+* And finally if the condition is met (see [Statement](#condition-statements))
+
+```java
+EvaluationResult<T> result = ...
+Date time = result.getMeasurementTime();
+String termName = result.getTermName();
+T measurementValue = result.getMeasurementResultValue();
+Statement conditionStatement ? result.getConditionStatement();
+assert result.isConditionMet() : "Condition is not met.";
+```
+
+### Predefined Aggregation Expressions
+| Expression | |
+|----------------------------------|-------------------------------------------------------------------------------------|
+| EMPTY | The empty aggregation returns always null. |
+| AVAILABILITY_UPTIME_BC | Evaluation of downtimes in seconds to an percentage uptime during a billing cycle. |
+| AVAILABILITY_MTBFMTTR | Evaluation based on meantime between failure and meantime between recovery. |
+| AVAILABILITY_AGGREGATION_SUMTYPE | An aggregation that summarizes percentage values |
+| AGGREGATION_MINTYPE | Returns the min value. |
+| AGGREGATION_MAXTYPE | Returns the max value |
+| AGGREGATION_SUMTYPE | Returns the sum up of values. |
+
+### Condition Statements
+* greater
+* greaterOrEqual
+* less
+* lessOrEqual
+* equal
+
+## License
+
+[Eclipse Public License version 2.0.](LICENSE.txt)
\ No newline at end of file
diff --git a/MCSLA/mcsla-core/pom.xml b/MCSLA/mcsla-core/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e261e574561ee50251275e82cef4da26af9ceadb
--- /dev/null
+++ b/MCSLA/mcsla-core/pom.xml
@@ -0,0 +1,109 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>eu.DECIDEh2020</groupId>
+ <artifactId>mcsla-core</artifactId>
+ <version>0.0.1-SNAPSHOT</version>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <distributionManagement>
+ <repository>
+ <id>paca-releases</id>
+ <name>Paca Releases Repo</name>
+ <url>https://paca.fokus.fraunhofer.de/repository/maven-releases/</url>
+ </repository>
+ <snapshotRepository>
+ <id>paca-snapshots</id>
+ <url>https://paca.fokus.fraunhofer.de/repository/maven-snapshots/</url>
+ </snapshotRepository>
+ </distributionManagement>
+
+ <scm>
+ <connection>
+ scm:git:https://${GITLAB_USER_LDAP}:${GITLAB_USER_PASSWORD}@gitlab.fokus.fraunhofer.de/${CI_PROJECT_PATH}
+ </connection>
+ <url>https://${GITLAB_USER_LDAP}:${GITLAB_USER_PASSWORD}@gitlab.fokus.fraunhofer.de/${CI_PROJECT_PATH}</url>
+ <developerConnection>
+ scm:git:https://${GITLAB_USER_LDAP}:${GITLAB_USER_PASSWORD}@gitlab.fokus.fraunhofer.de/${CI_PROJECT_PATH}
+ </developerConnection>
+ <tag>HEAD</tag>
+ </scm>
+
+ <repositories>
+ <repository>
+ <id>jgit-repository</id>
+ <url>https://repo.eclipse.org/content/groups/releases/</url>
+ </repository>
+ <repository>
+ <id>jitpack.io</id>
+ <url>https://jitpack.io</url>
+ </repository>
+ </repositories>
+
+ <dependencies>
+ <dependency>
+ <groupId>eu.DECIDEh2020</groupId>
+ <artifactId>app-controller</artifactId>
+ <version>0.0.15-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>ch.qos.logback</groupId>
+ <artifactId>logback-classic</artifactId>
+ <version>1.2.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.testng</groupId>
+ <artifactId>testng</artifactId>
+ <version>6.14.3</version>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>3.7.0</version>
+ <configuration>
+ <source>1.8</source>
+ <target>1.8</target>
+ <encoding>${project.build.sourceEncoding}</encoding>
+ </configuration>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-shade-plugin</artifactId>
+ <version>3.1.1</version>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ <configuration>
+ <minimizeJar>true</minimizeJar>
+ <shadedArtifactAttached>true</shadedArtifactAttached>
+ <filters>
+ <filter>
+ <artifact>*:*</artifact>
+ <excludes>
+ <exclude>META-INF/*.SF</exclude>
+ <exclude>META-INF/*.DSA</exclude>
+ <exclude>META-INF/*.RSA</exclude>
+ </excludes>
+ </filter>
+ </filters>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+
+</project>
\ No newline at end of file
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationMaxType.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationMaxType.java
new file mode 100644
index 0000000000000000000000000000000000000000..226fd00c7c187bddb80595c51f2517233a8d2145
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationMaxType.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.Comparator;
+import java.util.List;
+
+class AggregationMaxType<T extends Comparable<T>> implements PredefinedExpression<T, T> {
+
+ @Override
+ public T calculate(List<T> input, List<Parameter> parameters) {
+ return input.stream().max(Comparator.naturalOrder()).orElse(input.get(0));
+ }
+
+ @Override
+ public T calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ return (T)input.stream().map(Double::valueOf).max(Comparator.naturalOrder()).orElse(Double.valueOf(input.get(0)));
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationMinType.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationMinType.java
new file mode 100644
index 0000000000000000000000000000000000000000..d70e2242e71a7aa379b797c6a184913af7c4d878
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationMinType.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.Comparator;
+import java.util.List;
+
+class AggregationMinType<T extends Comparable<T>> implements PredefinedExpression<T, T> {
+
+ @Override
+ public T calculate(List<T> input, List<Parameter> parameters) {
+ return input.stream().min(Comparator.naturalOrder()).orElse(input.get(0));
+ }
+
+ @Override
+ public T calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ return (T)input.stream().map(Double::valueOf).min(Comparator.naturalOrder()).orElse(Double.valueOf(input.get(0)));
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationSumType.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationSumType.java
new file mode 100644
index 0000000000000000000000000000000000000000..75dce7d65dd1d64095f3b209d8457ae2aeefadfa
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AggregationSumType.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.List;
+
+class AggregationSumType<T extends Number> implements PredefinedExpression<T, T> {
+
+ @Override
+ public T calculate(List<T> input, List<Parameter> parameters) {
+ Number res;
+ T example = input.get(0);
+ if (example instanceof Double) {
+ res = input.stream().mapToDouble(T::doubleValue).sum();
+ } else if (example instanceof Integer) {
+ res = input.stream().mapToInt(T::intValue).sum();
+ } else if (example instanceof Long) {
+ res = input.stream().mapToLong(T::longValue).sum();
+ } else {
+ res = example;
+ }
+ return (T)res;
+ }
+
+ @Override
+ public T calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ return (T)(Number)input.stream().mapToDouble(Double::valueOf).sum();
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityAggregationSumType.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityAggregationSumType.java
new file mode 100644
index 0000000000000000000000000000000000000000..42cb6ff91f8e6ff3f22b7ef6df9521e1d3f9b16b
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityAggregationSumType.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+class AvailabilityAggregationSumType implements PredefinedExpression<Double, Double> {
+
+ @Override
+ public Double calculate(List<Double> input, List<Parameter> parameters) {
+ return input.stream().reduce(100.0, this::calculateSumtype);
+ }
+
+ @Override
+ public Double calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ List<Double> values = input.stream().map(Double::valueOf).collect(Collectors.toList());
+ return calculate(values, parameters);
+ }
+
+ private double calculateSumtype(double a, double b) {
+ double downtime = 100.0 - a;
+ return b - downtime;
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityMTBFMTTR.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityMTBFMTTR.java
new file mode 100644
index 0000000000000000000000000000000000000000..bc98d3212e946d289ffa6745641e20edfa186033
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityMTBFMTTR.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+class AvailabilityMTBFMTTR implements PredefinedExpression<Double, Long> {
+
+ @Override
+ public Double calculate(List<Long> input, List<Parameter> parameters) {
+ Double uptimeBegin;
+ Double downtimeBegin;
+ Double uptimeAgain;
+ if (input.size() == 3) {
+ uptimeBegin = input.get(0).doubleValue();
+ downtimeBegin = input.get(1).doubleValue();
+ uptimeAgain = input.get(2).doubleValue();
+ } else {
+ uptimeBegin = 0.0; // or restore it
+ downtimeBegin = input.get(0).doubleValue();
+ uptimeAgain = input.get(1).doubleValue();
+ }
+
+ Double mtbf = downtimeBegin - uptimeBegin;
+ Double mttr = uptimeAgain - downtimeBegin;
+ return 100.0 * (mtbf/(mtbf + mttr));
+ }
+
+ @Override
+ public Double calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ return calculate(input.stream().map(Long::valueOf).collect(Collectors.toList()), parameters);
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityUptimeBillingCycle.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityUptimeBillingCycle.java
new file mode 100644
index 0000000000000000000000000000000000000000..e10ecf23cb4f4fc6cdcfd139cf86558ffd60e1eb
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/AvailabilityUptimeBillingCycle.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+class AvailabilityUptimeBillingCycle implements PredefinedExpression<Double, Long> {
+
+ @Override
+ public Double calculate(List<Long> input, List<Parameter> parameters) {
+ Long totalDowntime = input.stream().reduce(0L, Long::sum);
+ Double billingCycle = 2.592 * 625.92 * 60;
+
+ for (Parameter p : parameters) {
+ if (p.getId().contains("PARAM_BC") && p.getUnit().equals("second")) {
+ billingCycle = Double.valueOf(p.getParameterStatement());
+ }
+ }
+
+ double tmp = billingCycle - totalDowntime.doubleValue();
+ return 100.0 - tmp/billingCycle;
+ }
+
+ @Override
+ public Double calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ return calculate(input.stream().map(Long::valueOf).collect(Collectors.toList()), parameters);
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Empty.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Empty.java
new file mode 100644
index 0000000000000000000000000000000000000000..73900c5929d77ff2dc4ac5e32a8f2969547c5474
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Empty.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.List;
+
+class Empty implements PredefinedExpression<Void, Void> {
+
+ @Override
+ public Void calculate(List<Void> input, List<Parameter> parameters) {
+ return null;
+ }
+
+ @Override
+ public Void calculateFromStrings(List<String> input, List<Parameter> parameters) {
+ return null;
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/EvaluationResult.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/EvaluationResult.java
new file mode 100644
index 0000000000000000000000000000000000000000..1b6060796f9a679065518132c6fd49ec1ab59ef4
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/EvaluationResult.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import java.util.Date;
+
+public class EvaluationResult<T extends Comparable<T>> {
+ private String termName;
+
+ private Statement conditionStatement;
+ private T value;
+ private T measurementResultValue;
+ private Date measurementTime;
+ private boolean comparisonResult;
+
+ private boolean error;
+ private String errorMessage;
+
+ EvaluationResult() {
+ measurementTime = new Date();
+ }
+
+ public String getTermName() {
+ return termName;
+ }
+
+ public void setTermName(String termName) {
+ this.termName = termName;
+ }
+
+ public Statement getConditionStatement() {
+ return conditionStatement;
+ }
+
+ void setConditionStatement(Statement conditionStatement, T value) {
+ this.conditionStatement = conditionStatement;
+ this.value = value;
+ }
+
+ public T getMeasurementResultValue() {
+ return measurementResultValue;
+ }
+
+ void setMeasurementResultValue(T measurementResultValue) {
+ this.measurementResultValue = measurementResultValue;
+ switch (conditionStatement) {
+ case greater:
+ comparisonResult = measurementResultValue.compareTo(value) > 0;
+ break;
+ case less:
+ comparisonResult = measurementResultValue.compareTo(value) < 0;
+ break;
+ case greaterOrEqual:
+ comparisonResult = measurementResultValue.compareTo(value) >= 0;
+ break;
+ case lessOrEqual:
+ comparisonResult = measurementResultValue.compareTo(value) <= 0;
+ break;
+ case equal:
+ comparisonResult = measurementResultValue.compareTo(value) == 0;
+ break;
+ default:
+ comparisonResult = false;
+ }
+ }
+
+ public Date getMeasurementTime() {
+ return measurementTime;
+ }
+
+ public boolean isConditionMet() {
+ return comparisonResult;
+ }
+
+ public boolean isError() {
+ return error;
+ }
+
+ public void setError(boolean error) {
+ this.error = error;
+ }
+
+ public String getErrorMessage() {
+ return errorMessage;
+ }
+
+ public void setErrorMessage(String errorMessage) {
+ this.errorMessage = errorMessage;
+ }
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Expressions.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Expressions.java
new file mode 100644
index 0000000000000000000000000000000000000000..34c01ed9ee3c5982811d7d3957232e1c549876ec
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Expressions.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+public class Expressions {
+
+ public static final String LANGUAGE_PREDEFINED = "predefined";
+ public static final String LANGUAGE_ISO8000 = "iso8000";
+
+ static <T extends Number & Comparable<T>> PredefinedExpression create(Predefined expression) {
+ switch (expression) {
+ case AVAILABILITY_UPTIME_BC:
+ return new AvailabilityUptimeBillingCycle();
+ case AVAILABILITY_MTBFMTTR:
+ return new AvailabilityMTBFMTTR();
+ case AVAILABILITY_AGGREGATION_SUMTYPE:
+ return new AvailabilityAggregationSumType();
+ case AGGREGATION_MAXTYPE:
+ return new AggregationMaxType<T>();
+ case AGGREGATION_SUMTYPE:
+ return new AggregationSumType<T>();
+ case EMPTY:
+ default:
+ return new Empty();
+ }
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/MetricsContext.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/MetricsContext.java
new file mode 100644
index 0000000000000000000000000000000000000000..8738dc622f0108befe84753a12e63b1d16ef8968
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/MetricsContext.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.AppDescription;
+import eu.DECIDEh2020.appManager.models.ServiceObjective;
+import eu.DECIDEh2020.appManager.models.Sla;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class MetricsContext {
+
+ private AppDescription appDescription;
+
+ private Map<String, Map<String, EvaluationResult>> store = new HashMap<>();
+
+ static public MetricsContext create(AppDescription appDescription) {
+ if (appDescription == null) {
+ throw new IllegalArgumentException("appDescription has to be non null");
+ }
+ if (appDescription.getMcsla() == null) {
+ throw new IllegalStateException("No metrics found");
+ }
+ return new MetricsContext(appDescription);
+ }
+
+ static public <T, V> T aggregate(List<V> values, Predefined predefined) {
+ PredefinedExpression<T, V> expression = Expressions.create(predefined);
+ return expression.calculate(values, Collections.emptyList());
+ }
+
+ private MetricsContext(AppDescription appDescription) {
+ this.appDescription = appDescription;
+ }
+
+ public Map<String, ServiceObjectiveMetrics> getCsMetrics(String csId) {
+ Sla sla = appDescription.getMcsla().getCsSlas().get(csId);
+ Map<String, ServiceObjectiveMetrics> map = new HashMap<>();
+ for (ServiceObjective objective : sla.getObjectives()) {
+ map.put(objective.getTermName(), new ServiceObjectiveMetrics(this, csId, objective));
+ }
+ return map;
+ }
+
+ public Map<String, ServiceObjectiveMetrics> getAppMetrics() {
+ Sla sla = appDescription.getMcsla().getSla();
+ Map<String, ServiceObjectiveMetrics> map = new HashMap<>();
+ for (ServiceObjective objective : sla.getObjectives()) {
+ map.put(objective.getTermName(), new ServiceObjectiveMetrics(this, objective));
+ }
+ return map;
+ }
+
+ public <T, V> T aggregate(Predefined predefined, String termName) {
+ PredefinedExpression<T, V> expression = Expressions.create(predefined);
+ List<String> values = new ArrayList<>();
+ Map<String, Sla> csSlas = appDescription.getMcsla().getCsSlas();
+ csSlas.values().forEach(sla -> sla.getObjectives().stream().filter(o -> o.getTermName().equals(termName)).map(ServiceObjective::getValue).collect(Collectors.toCollection(() -> values)));
+ return expression.calculateFromStrings(values, Collections.emptyList());
+ }
+
+ <T extends Comparable<T>> void store(String csId, EvaluationResult<T> result) {
+ store.computeIfAbsent(csId, k -> new HashMap<>()).put(result.getTermName(), result);
+ }
+
+ List<EvaluationResult> restore(String termName) {
+ return store.values().stream().filter(m -> m.containsKey(termName)).map(m -> m.get(termName)).collect(Collectors.toList());
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Predefined.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Predefined.java
new file mode 100644
index 0000000000000000000000000000000000000000..70c1a305d5f1b22fd45c527469706a632b7a6a59
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Predefined.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+public enum Predefined {
+ EMPTY(""),
+ AVAILABILITY_UPTIME_BC("100 - (billingCycle - totalDowntime)/billingCycle"),
+ AVAILABILITY_MTBFMTTR("100 * (MTBF/(MTBF + MTTR))"),
+ AVAILABILITY_AGGREGATION_SUMTYPE("availability(term<1>, ...term<n>) = 100% - (sum<i=1..n>(100% - term<i>))"),
+ AGGREGATION_MINTYPE("min(term<1>, ...term<n>)"),
+ AGGREGATION_MAXTYPE("max(term<1>, ...term<n>)"),
+ AGGREGATION_SUMTYPE("sum(term<1>, ...term<n>)");
+
+ private String note;
+
+ Predefined(String note) {
+ this.note = note;
+ }
+
+ public String note() {
+ return note;
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/PredefinedExpression.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/PredefinedExpression.java
new file mode 100644
index 0000000000000000000000000000000000000000..fa91348990c9e7faf09da0454fdcb453ea2e0416
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/PredefinedExpression.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Parameter;
+
+import java.util.List;
+
+interface PredefinedExpression<T, V> {
+ T calculate(List<V> input, List<Parameter> parameters);
+ T calculateFromStrings(List<String> input, List<Parameter> parameters);
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/ServiceObjectiveMetrics.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/ServiceObjectiveMetrics.java
new file mode 100644
index 0000000000000000000000000000000000000000..a0a6401c0deeb1005673d72c8a061efa747d9ce4
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/ServiceObjectiveMetrics.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+import eu.DECIDEh2020.appManager.models.Expression;
+import eu.DECIDEh2020.appManager.models.Metric;
+import eu.DECIDEh2020.appManager.models.ServiceObjective;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class ServiceObjectiveMetrics {
+
+ private MetricsContext context;
+
+ private ServiceObjective objective;
+
+ private String csId;
+
+ ServiceObjectiveMetrics(MetricsContext context, ServiceObjective objective) {
+ this(context, null, objective);
+ }
+
+ ServiceObjectiveMetrics(MetricsContext context, String csId, ServiceObjective objective) {
+ this.context = context;
+ this.objective = objective;
+ this.csId = csId;
+ }
+
+ public MetricsContext getContext() {
+ return context;
+ }
+
+ public EvaluationResult evaluate(double measuredValue) {
+ if (objective.getMetrics().isEmpty()) {
+ return result(measuredValue, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ }
+
+ Metric metric = objective.getMetrics().get(0);
+ Expression expression = metric.getExpression();
+ if (expression.getExpressionLanguage().equals(Expressions.LANGUAGE_PREDEFINED)) {
+ Predefined predefined = Predefined.valueOf(expression.getExpression());
+ switch(predefined) {
+ default:
+ return result(measuredValue, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ }
+ } else {
+ return errorResult("Expression language '" + expression.getExpressionLanguage() + "' not yet supported.");
+ }
+ }
+
+ public EvaluationResult<Double> evaluate(List<Long> measuredValues) {
+ if (objective.getMetrics().isEmpty()) {
+ return errorResult("No metrics defined.");
+ }
+
+ Metric metric = objective.getMetrics().get(0);
+ return (EvaluationResult<Double>)evaluate(metric, measuredValues);
+ }
+
+ public EvaluationResult<Double> evaluate(long[] measuredValues) {
+ return evaluate(Arrays.stream(measuredValues).boxed().collect(Collectors.toList()));
+ }
+
+ public EvaluationResult<Double> evaluate(double[] measuredValues) {
+ if (objective.getMetrics().isEmpty()) {
+ return errorResult("No metrics defined.");
+ }
+ Metric metric = objective.getMetrics().get(0);
+ return (EvaluationResult<Double>)evaluate(metric, Arrays.stream(measuredValues).boxed().collect(Collectors.toList()));
+ }
+
+ public EvaluationResult<Double> evaluate(Map<String, List<Long>> measuredValues) {
+ if (objective.getMetrics().isEmpty()) {
+ return errorResult("No metrics defined.");
+ }
+
+ Metric metric = objective.getMetrics().get(0);
+ List<Double> subValues = metric.getUnderlyingMetrics()
+ .stream()
+ .filter(m -> measuredValues.containsKey(m.getId()))
+ .map(m -> (Double)evaluate(m, measuredValues.get(m.getId())).getMeasurementResultValue())
+ .collect(Collectors.toList());
+
+ return (EvaluationResult<Double>)evaluate(metric, subValues);
+ }
+
+ public EvaluationResult<Double> evaluate() {
+ if (objective.getMetrics().isEmpty()) {
+ return errorResult("No metrics defined.");
+ }
+
+ Metric metric = objective.getMetrics().get(0);
+ List<EvaluationResult> results = context.restore(objective.getTermName());
+ List<Double> subValues = results.stream().map(r -> (Double)r.getMeasurementResultValue()).collect(Collectors.toList());
+ return (EvaluationResult<Double>)evaluate(metric, subValues);
+ }
+
+ private <T extends Comparable<T>> EvaluationResult<?> evaluate(Metric metric, List<T> values) {
+ Expression expression = metric.getExpression();
+ if (expression.getExpressionLanguage().equals(Expressions.LANGUAGE_PREDEFINED)) {
+ Predefined predefined = Predefined.valueOf(expression.getExpression());
+ switch(predefined) {
+ case AVAILABILITY_AGGREGATION_SUMTYPE:
+ AvailabilityAggregationSumType availability = (AvailabilityAggregationSumType)Expressions.create(predefined);
+ List<Double> finalList = values.get(0) instanceof Long ? ((List<Long>)values).stream().map(Long::doubleValue).collect(Collectors.toList()) : (List<Double>)values;
+ Double value = availability.calculate(finalList, metric.getParameters());
+ return result(value, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ case AVAILABILITY_MTBFMTTR:
+ AvailabilityMTBFMTTR mtbfmttr = (AvailabilityMTBFMTTR)Expressions.create(predefined);
+ Double value0 = mtbfmttr.calculate((List<Long>)values, metric.getParameters());
+ return result(value0, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ case AVAILABILITY_UPTIME_BC:
+ AvailabilityUptimeBillingCycle uptimeBillingCycle = (AvailabilityUptimeBillingCycle)Expressions.create(predefined);
+ Double value1 = uptimeBillingCycle.calculate((List<Long>)values, metric.getParameters());
+ return result(value1, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ case AGGREGATION_SUMTYPE:
+ AggregationSumType<Double> sumAggregation = (AggregationSumType<Double>)Expressions.create(predefined);
+ List<Double> finalList2 = values.get(0) instanceof Long ? ((List<Long>)values).stream().map(Long::doubleValue).collect(Collectors.toList()) : (List<Double>)values;
+ Double value2 = sumAggregation.calculate(finalList2, metric.getParameters());
+ return result(value2, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ case AGGREGATION_MINTYPE:
+ AggregationMinType<Double> minAggregation = (AggregationMinType<Double>)Expressions.create(predefined);
+ List<Double> finalList3 = values.get(0) instanceof Long ? ((List<Long>)values).stream().map(Long::doubleValue).collect(Collectors.toList()) : (List<Double>)values;
+ Double value3 = minAggregation.calculate(finalList3, metric.getParameters());
+ return result(value3, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ case AGGREGATION_MAXTYPE:
+ AggregationMaxType<Double> maxAggregation = (AggregationMaxType<Double>)Expressions.create(predefined);
+ List<Double> finalList4 = values.get(0) instanceof Long ? ((List<Long>)values).stream().map(Long::doubleValue).collect(Collectors.toList()) : (List<Double>)values;
+ Double value4 = maxAggregation.calculate(finalList4, metric.getParameters());
+ return result(value4, Statement.valueOf(objective.getConditionStatement()), Double.valueOf(objective.getValue()));
+ case EMPTY:
+ return errorResult("Empty metric.");
+ default:
+ return errorResult("Predefined metric '" + predefined + "' not found.");
+ }
+ } else {
+ return errorResult("Expression language '" + expression.getExpressionLanguage() + "' not yet implemented.");
+ }
+ }
+
+ private <T extends Comparable<T>> EvaluationResult<T> result(T result, Statement conditionStatement, T value) {
+ EvaluationResult<T> res = new EvaluationResult<>();
+ res.setTermName(objective.getTermName());
+ res.setConditionStatement(conditionStatement, value);
+ res.setMeasurementResultValue(result);
+ if (csId != null) {
+ context.store(csId, res);
+ }
+ return res;
+ }
+
+ private <T extends Comparable<T>> EvaluationResult<T> errorResult(String message) {
+ EvaluationResult<T> res = new EvaluationResult<>();
+ res.setTermName(objective.getTermName());
+ res.setError(true);
+ res.setErrorMessage(message);
+ return res;
+ }
+
+}
diff --git a/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Statement.java b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Statement.java
new file mode 100644
index 0000000000000000000000000000000000000000..2be3a2be2f2dd402d89f432bb00e02fdac842a6b
--- /dev/null
+++ b/MCSLA/mcsla-core/src/main/java/eu/DECIDEh2020/mcsla/core/metrics/Statement.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2018 Fraunhofer FOKUS.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the
+ * Eclipse Public License version 2.0 which accompanies
+ * this distribution, and is available at
+ * https://opensource.org/licenses/EPL-2.0
+ *
+ * Contributors:
+ *
+ * Simon Dutkowski (Fraunhofer FOKUS)
+ *
+ * Initially developed in the context of DECIDE EU project www.DECIDE-h2020.eu
+ */
+package eu.DECIDEh2020.mcsla.core.metrics;
+
+public enum Statement {
+ greater, less, greaterOrEqual, lessOrEqual, equal
+}
diff --git a/MCSLA/mcsla-core/src/test/resources/DECIDE.json b/MCSLA/mcsla-core/src/test/resources/DECIDE.json
new file mode 100644
index 0000000000000000000000000000000000000000..7ae22f950eacdea0493e42a3a10e1a3fc304195b
--- /dev/null
+++ b/MCSLA/mcsla-core/src/test/resources/DECIDE.json
@@ -0,0 +1,634 @@
+{
+ "id": "adbc5b30-d6ca-4d1a-a778-90761865a827",
+ "name": "SockShop App",
+ "description": "",
+ "version": "0.2.2-alpha",
+ "highTechnologicalRisk": false,
+ "microservices": [
+ {
+ "id": "9005a07c-1148-49bf-8c94-83421ce20e52",
+ "name": "Microservice One",
+ "stateful": false,
+ "endpoints": [
+ "schema:example.com"
+ ]
+ },
+ {
+ "id": "3d16aa10-1ba0-43b2-b9c3-fa4f2c761688",
+ "name": "Microservice Two",
+ "tags": [ "UIComponents" ],
+ "stateful": false,
+ "endpoints": [
+ "schema:example.com"
+ ],
+ "deploymentOrder": 1,
+ "dependencies": [
+ "/dependency/1",
+ "https://gitlab.fokus.fraunhofer.de/DECIDE/CloudPatterns"
+ ]
+ },
+ {
+ "id": "7a1837ea-2f5e-4fb2-aa57-a8261f2a5a83",
+ "name": "Microservice Three",
+ "tags": [],
+ "stateful": false,
+ "endpoints": [
+ "schema:example.com"
+ ],
+ "deploymentOrder": 2,
+ "programmingLanguage": "Java"
+ }
+ ],
+ "nfrs": [
+ {
+ "type": "Availability",
+ "tags": [ "Application" ],
+ "abstractValue": "High",
+ "value": 99.8,
+ "unit": "percentage"
+ },
+ {
+ "type": "Performance",
+ "tags": [ "Application" ],
+ "abstractValue": "Medium",
+ "value": 300,
+ "unit": "millisecond"
+ },
+ {
+ "type": "Location",
+ "tags": [ "Application" ],
+ "abstractValue": "Cross Border",
+ "value": [ "italy" ]
+ },
+ {
+ "type": "Scalability",
+ "tags": [ "Application" ],
+ "abstractValue": "High",
+ "value": 99.8
+ },
+ {
+ "type": "Cost",
+ "tags": [ "Application" ],
+ "abstractValue": "Medium",
+ "value": 10000,
+ "unit": "euro"
+ }
+ ],
+ "recommendedPatterns": [
+ {
+ "title": "Resiliency Management Process",
+ "uriRef": "http://decideh2020.eu/resources/patterns/resiliency-management-process",
+ "positiveImpacts": [ "availability" ],
+ "categories": [ "optimization" ],
+ "tags": [ "Application" ],
+ "selected": true
+ },
+ {
+ "title": "Compliant Data Replication",
+ "uriRef": "http://decideh2020.eu/resources/patterns/compliant-data-replication",
+ "positiveImpacts": [ "location" ],
+ "categories": [ "optimization", "deployment" ],
+ "tags": [ "Application" ],
+ "selected": true
+ },
+ {
+ "title": "Elasticity Manager",
+ "uriRef": "http://decideh2020.eu/resources/patterns/elasticity-manager",
+ "positiveImpacts": [ "scalability" ],
+ "categories": [ "deployment" ],
+ "tags": [ "Application" ],
+ "selected": true
+ }
+ ],
+ "schema": [
+ {
+ "microservices": [ "9005a07c-1148-49bf-8c94-83421ce20e52" ],
+ "csId": "38",
+ "index": 1
+ },
+ {
+ "microservices": [ "7a1837ea-2f5e-4fb2-aa57-a8261f2a5a83" ],
+ "csId": "15",
+ "index": 2
+ },
+ {
+ "microservices": [ "3d16aa10-1ba0-43b2-b9c3-fa4f2c761688" ],
+ "csId": "28",
+ "index": 3
+ }
+ ],
+ "mcsla": {
+ "sla": {
+ "description": "SockShop App Service Level Agreement",
+ "validityPeriod": 0,
+ "objectives": [
+ {
+ "termName": "Availability",
+ "type": "slo",
+ "value": "99.8",
+ "unit": "percentage",
+ "conditionStatement": "greaterOrEqual",
+ "metrics": [
+ {
+ "id": "CSA_AV_001",
+ "scale": "ratio",
+ "expression": {
+ "expression": "AVAILABILITY_AGGREGATION_SUMTYPE",
+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ },
+ "underlyingMetrics": [
+ {
+ "id": "9005a07c-1148-49bf-8c94-83421ce20e52",
+ "expression": {
+ "expression": "AVAILABILITY_MTBFMTTR",
+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ },
+ "scale": "ratio"
+ },
+ {
+ "id": "3d16aa10-1ba0-43b2-b9c3-fa4f2c761688",
+ "expression": {
+ "expression": "AVAILABILITY_MTBFMTTR",
+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ },
+ "scale": "ratio"
+ },
+ {
+ "id": "7a1837ea-2f5e-4fb2-aa57-a8261f2a5a83",
+ "expression": {
+ "expression": "AVAILABILITY_MTBFMTTR",
+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ },
+ "scale": "ratio"
+ }
+ ]
+ }
+ ]
+ },
+ {
+ "termName": "Performance",
+ "type": "slo",
+ "value": "300.0",
+ "unit": "millisecond",
+ "conditionStatement": "lessOrEqual",
+ "metrics": [
+ {
+ "id": "CSA_PE_001",
+ "scale": "ratio",
+ "expression": {
+ "expression": "AGGREGATION_MAXTYPE",
+ "expressionLanguage": "predefined",
+ "unit": "millisecond"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Location",
+ "type": "sqo",
+ "value": "europe",
+ "conditionStatement": "equal"
+ },
+ {
+ "termName": "Scalability",
+ "type": "sqo",
+ "value": "messageCount",
+ "conditionStatement": "equal"
+ },
+ {
+ "termName": "Cost",
+ "type": "slo",
+ "value": "10000.0",
+ "unit": "euro",
+ "conditionStatement": "less",
+ "metrics": [
+ {
+ "id": "CSA_CO_001",
+ "scale": "ratio",
+ "expression": {
+ "expression": "AGGREGATION_SUMTYPE",
+ "expressionLanguage": "predefined",
+ "unit": "euro"
+ }
+ }
+ ]
+ }
+ ]
+ },
+ "csSlas": {
+ "15": {
+ "description": "C8_Germany",
+ "validityPeriod": 0,
+ "coveredServices": [
+ "Virtual Machine"
+ ],
+ "objectives": [
+ {
+ "termName": "Region",
+ "type": "sqo",
+ "value": "Europe",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Location based on continents",
+ "scale": "nominal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Zone",
+ "type": "sqo",
+ "value": "Germany",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Location based on countries",
+ "scale": "nominal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Provider",
+ "type": "sqo",
+ "value": "Arsys",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Name of the cloud service provider",
+ "scale": "nominal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Availability",
+ "type": "slo",
+ "value": "99.9",
+ "unit": "percentage",
+ "conditionStatement": "greaterOrEqual",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Uptime during a time period",
+ "scale": "ratio",
+ "expression": {
+ "expression": "AVAILABILITY_UPTIME_BC",
+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ }
+ }
+ ]
+ },
+ {
+ "comment": "Response time: Virtual Machine Performance",
+ "termName": "Performance",
+ "type": "slo",
+ "value": "2",
+ "unit": "millisecond",
+ "conditionStatement": "lessOrEqual",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Response time for a request",
+ "scale": "interval",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "predefined",
+ "unit": "millisecond"
+ }
+ }
+ ]
+ },
+ {
+ "comment": "Legal Level/Certifications",
+ "termName": "Legal Level",
+ "type": "sqo",
+ "value": "Legal Level 2",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Pre defined legal levels",
+ "scale": "ordinal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Cost",
+ "type": "slo",
+ "value": "150",
+ "unit": "euro",
+ "conditionStatement": "less",
+ "metrics": [
+ {
+ "id": "CS15_001",
+ "descriptor": "Cost limitation",
+ "scale": "ratio",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "predefined"
+ }
+ }
+ ]
+ }
+ ]
+ },
+ "28": {
+ "description": "g3.8xlarge",
+ "validityPeriod": 0,
+ "coveredServices": [
+ "Virtual Machine"
+ ],
+ "objectives": [
+ {
+ "termName": "Region",
+ "type": "sqo",
+ "value": "North America",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS28_001",
+ "descriptor": "Location based on continents",
+ "scale": "nominal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Zone",
+ "type": "sqo",
+ "value": "United States",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS28_001",
+ "descriptor": "Location based on countries",
+ "scale": "nominal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Provider",
+ "type": "sqo",
+ "value": "Amazon",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS28_001",
+ "descriptor": "Name of the cloud service provider",
+ "scale": "nominal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Availability",
+ "type": "slo",
+ "value": "99.8",
+ "unit": "percentage",
+ "conditionStatement": "greaterOrEqual",
+ "metrics": [
+ {
+ "id": "CS28_001",
+ "descriptor": "Uptime during a time period",
+ "scale": "ratio",
+ "expression": {
+ "expression": "AVAILABILITY_UPTIME_BC",
+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ }
+ }
+ ]
+ },
+ {
+ "comment": "Response time: Virtual Machine Performance",
+ "termName": "Performance",
+ "type": "slo",
+ "value": "2",
+ "unit": "millisecond",
+ "conditionStatement": "lessOrEqual",
+ "metrics": [
+ {
+ "id": "CS28_001",
+ "descriptor": "Response time for a request",
+ "scale": "interval",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "predefined",
+ "unit": "millisecond"
+ }
+ }
+ ]
+ },
+ {
+ "comment": "Legal Level/Certifications",
+ "termName": "Legal Level",
+ "type": "sqo",
+ "value": "Legal Level 2",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS28_001",
+ "descriptor": "Pre defined legal levels",
+ "scale": "ordinal",
+ "expression": {
+ "expression": "EMPTY",
+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Cost",
+ "type": "slo",
+ "value": "2209",
+ "unit": "euro",
+ "conditionStatement": "less",
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+ ],
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+ {
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+ "type": "sqo",
+ "value": "Europe",
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+ "metrics": [
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+ "id": "CS38_001",
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+ "expressionLanguage": "english"
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+ ]
+ },
+ {
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+ "value": "Ireland",
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+ {
+ "id": "CS38_001",
+ "descriptor": "Location based on countries",
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+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
+ "termName": "Provider",
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+ "value": "Azure",
+ "conditionStatement": "equal",
+ "metrics": [
+ {
+ "id": "CS38_001",
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+ "scale": "nominal",
+ "expression": {
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+ "expressionLanguage": "english"
+ }
+ }
+ ]
+ },
+ {
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+ "value": "95",
+ "unit": "percentage",
+ "conditionStatement": "greaterOrEqual",
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+ {
+ "id": "CS38_001",
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+ "expressionLanguage": "predefined",
+ "unit": "percentage"
+ }
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+ ]
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+ "value": "5",
+ "unit": "millisecond",
+ "conditionStatement": "lessOrEqual",
+ "metrics": [
+ {
+ "id": "CS38_001",
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+ "expression": {
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+ }
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+ },
+ {
+ "comment": "Legal Level/Certifications",
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+ "value": "Legal Level 2",
+ "conditionStatement": "equal",
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+ "id": "CS38_001",
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+ "expression": {
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+ },
+ {
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+ "unit": "euro",
+ "conditionStatement": "less",
+ "metrics": [
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+ "id": "CS38_001",
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+ },
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+ "virtualMachines": [
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+}