Converted maven-based build system to gradle

Squashed to prepare for develop rebase

.gitignore

@@ -30,6 +30,8 @@
 /.recommenders/
 rat-repository/src/main/docker/jar/*
 .DS_Store
+bin
+out
 
 # Karaf Deploy
 /karaf-assembly/src/main/resources/deploy/*.xml

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: maven
+image: node:8-stretch
 
 stages:
 - build
@@ -7,14 +7,12 @@ stages:
 build:
   stage: build
   before_script:
+  - mkdir -p /root/.m2
   - echo $M2_SETTINGS > ~/.m2/settings.xml
   - mkdir -p /cache/.m2
-  - curl -sL https://deb.nodesource.com/setup_8.x | bash -
-  - curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
-  - echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
-  - apt update && apt install -y nodejs yarn
-  script: 
-  - mvn clean -DskipITs install site --batch-mode
+  - apt update && apt install -y openjdk-8-jdk
+  script:
+  - ./gradlew clean install
   artifacts:
     when: always
     paths:

build.gradle

@@ -0,0 +1,119 @@
+plugins {
+    id 'java'
+    id 'com.google.protobuf' version '0.8.5'
+    id 'com.moowork.node' version '1.2.0'
+    id 'biz.aQute.bnd' version '3.3.0' apply false
+    id 'com.github.lburgazzoli.karaf' version '0.0.49'
+}
+
+allprojects {
+    group = 'de.fhg.ids'
+    version = '1.1.0-SNAPSHOT'
+
+    ext.libraryVersions = [
+            // basically, the first requirement, all other libraries depend on this version
+            karaf         : '4.2.0',
+            pax           : '7.0.0',
+
+            camel         : '2.21.1',
+
+            // Camel ships with cxf, however it is slightly older so we want a newer version
+            cxf           : '3.2.4',
+
+            // OSGI libraries
+            osgiCompendium: '5.0.0',
+            osgiAnnotation: '6.0.0',
+            felixFramework: '5.4.0',
+
+            ahc           : '2.4.9',
+            acme          : '2.0',
+            checkerQual   : '2.5.2',
+            guava         : '25.1-jre',
+            kotlin        : '1.2.41',
+            tuprolog      : '3.2.1',
+            log4j         : '2.6.2',
+            junit4        : '4.12',
+            mapdb         : '3.0.7',
+            jnrunix       : '0.18',
+            protobuf      : '3.5.1',
+
+            // it seems not all jetty components are in our BOM so we need to specify it here as well
+            jetty         : '9.4.11.v20180605',
+
+            // we will pull in a newer version of jackson because of security fixes
+            jackson       : '2.9.5',
+
+            // needed for rat-repository, should be seperated 
+            jersey        : '2.26',
+            mockito       : '1.10.19'
+    ]
+
+    configurations {
+        // just to make boms easier to see in the dependency tree
+        bom
+        implementation.extendsFrom bom
+        testImplementation.extendsFrom bom
+
+        // an implementation dependency that will be provided through a feature in the OSGi environment        
+        providedByFeature
+        implementation.extendsFrom providedByFeature
+
+        // an implementation dependency that will be provided by a bundle or wrapped in the OSGi environment
+        providedByBundle
+        implementation.extendsFrom providedByBundle
+
+        // osgi core dependencies only needed for compiling, they will just be there during runtime
+        osgiCore
+        compileOnly.extendsFrom osgiCore
+
+        // but we need them in testing
+        testImplementation.extendsFrom osgiCore
+    }
+}
+
+subprojects {
+    apply plugin: 'biz.aQute.bnd.builder'
+    apply plugin: 'java'
+    apply plugin: 'maven'
+
+    sourceCompatibility = 1.8
+    targetCompatibility = 1.8
+
+    test {
+        exclude '**/*IT.*'
+    }
+
+    task integrationTest(type: Test) {
+        include '**/*IT.*'
+    }
+
+    // define some Bill of Materials (BOM) for all subprojects
+    dependencies {
+        // BOM from Karaf, sets common version for OSGi libraries
+        bom group: 'org.apache.karaf', name: 'karaf', version: libraryVersions.karaf
+
+        // BOM for pax, for jetty, etc.
+        bom group: 'org.ops4j.pax', name: 'web', version: libraryVersions.pax
+    }
+
+    tasks.withType(JavaCompile) {
+        options.encoding = 'UTF-8'
+    }
+
+    tasks.withType(Jar) {
+        jar {
+            manifest {
+                // set the vendor
+                attributes 'Bundle-Vendor': 'Fraunhofer AISEC'
+
+                // TODO: this was set in most of the bnd files. do we really need this?
+                attributes '-noee': true
+            }
+        }
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+    }
+}

camel-ids/.classpath

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry excluding="target/generated-sources/annotations/" kind="src" path=""/>
+	<classpathentry kind="src" path="target/generated-sources/annotations">
+		<attributes>
+			<attribute name="optional" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path=".apt_generated">
+		<attributes>
+			<attribute name="optional" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="target/classes"/>
+</classpath>

camel-ids/build.gradle

@@ -0,0 +1,37 @@
+description = 'Camel IDS Component'
+
+// TODO: these dependencies probably to not match the pom.xml anymore since the restructuring
+dependencies {
+    providedByBundle project(':tpm2j')
+    providedByBundle project(':ids-api')
+    providedByBundle project(':ids-comm')
+
+    // Bill of Materials (BOM) for Camel
+    bom group: 'org.apache.camel', name: 'camel-parent', version: libraryVersions.camel
+
+    providedByFeature group: 'org.apache.camel', name: 'camel-core'
+    providedByFeature group: 'org.apache.camel', name: 'camel-ahc'
+
+    providedByFeature group: 'org.eclipse.jetty', name: 'jetty-servlet', version: libraryVersions.jetty
+    providedByFeature group: 'org.eclipse.jetty', name: 'jetty-jmx', version: libraryVersions.jetty
+    providedByFeature group: 'org.eclipse.jetty', name: 'jetty-servlets', version: libraryVersions.jetty
+
+    // TODO: WHY WHY WHY WHY is jetty websocket used, if we already have async http client...
+    providedByFeature group: 'org.eclipse.jetty.websocket', name: 'websocket-server', version: libraryVersions.jetty
+    providedByFeature group: 'org.eclipse.jetty.websocket', name: 'websocket-client', version: libraryVersions.jetty
+
+    providedByBundle group: 'org.apache.logging.log4j', name: 'log4j-core', version: libraryVersions.log4j
+
+    providedByBundle group: 'com.github.jnr', name: 'jnr-unixsocket', version: '0.18'
+
+    osgiCore group: 'org.osgi', name: 'org.osgi.compendium', version: libraryVersions.osgiCompendium
+
+    providedByFeature group: 'com.google.protobuf', name: 'protobuf-java', version: libraryVersions.protobuf
+
+    testImplementation group: 'junit', name: 'junit'
+    testImplementation group: 'org.apache.camel', name: 'camel-test'
+    testImplementation group: 'org.mockito', name: 'mockito-all', version: libraryVersions.mockito
+}
+
+// integration tests are currently disabled anyway...
+//test.dependsOn(startDocker)

camel-ids/src/main/java/de/fhg/camel/ids/connectionmanagement/ConnectionManagerService.java

@@ -26,18 +26,17 @@
 import de.fhg.camel.ids.client.WsEndpoint;
 import de.fhg.camel.ids.server.WebsocketComponent;
 import de.fhg.camel.ids.server.WebsocketComponentServlet;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 import org.osgi.service.component.ComponentContext;
 import org.osgi.service.component.annotations.Activate;
 import org.osgi.service.component.annotations.Component;
 import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
 /**
  * Main entry point of the Connection Management Layer.
  *

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Wed Mar 28 18:08:43 CEST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip