Added Gradle support to include OSGI headers in package

build.gradle

@@ -13,8 +13,22 @@ def getScalaSuffix(scalaVersion) {
   return scalaVersion.startsWith('2.10') ? '_2.10' : "_$scalaVersion"
 }
 
-subprojects {
+/* Helper to build OSGI package lists with explicit version spec.
+ * By default the osgi plugin adds version range such as (0.6.91,1.0]
+ * for import-package. To avoid missmatch we want exact version.
+ * Downside: Manual package lists in gradle...
+ * Alternative is to use -consumer-policy directive to force ==, but
+ * that applies to external imports too which is undesired.
+ */
+def createOsgiVersionedPackageList(pkgs) {
+  def out = []
+  for(String pkg: pkgs){
+    out.add(pkg + ';version="'+version+'"')
+  }
+  return out.join(',')
+}
 
+subprojects {
   // the cross built scala modules share the same source directories so we need to make their output directories unique
   buildDir = "${rootProject.buildDir}/$name"
 

cluster/build.gradle

@@ -1,5 +1,6 @@
 apply plugin: 'java'
 apply plugin: 'scala'
+apply plugin: 'osgi'
 
 dependencies {
   compile externalDependency.scalaLibrary
@@ -17,3 +18,11 @@ dependencies {
   testCompile externalDependency.junit
 }
 
+jar{
+  manifest {
+    name = 'Norbert Cluster'
+    symbolicName = 'com.linkedin.norbert.cluster'
+    instruction 'Bundle-Description', 'Norbert Cluster'
+    instruction 'Bundle-Vendor', 'LinkedIn'
+  }
+}

java-cluster/build.gradle

@@ -1,8 +1,23 @@
 apply plugin: 'java'
 apply plugin: 'scala'
+apply plugin: 'osgi'
 
 dependencies {
   compile project(":cluster$scalaSuffix")
   compile externalDependency.scalaLibrary
 }
 
+ext.osgi_local_imports = [
+  'com.linkedin.norbert.cluster',
+  'com.linkedin.norbert.cluster.memory']
+
+jar{
+  manifest {
+    name = 'Norbert Java Cluster'
+    symbolicName = 'com.linkedin.norbert.java-cluster'
+    instruction 'Bundle-Description', 'Norbert Java Cluster'
+    instruction 'Bundle-Vendor', 'LinkedIn'
+    instruction 'Import-Package', createOsgiVersionedPackageList(osgi_local_imports) + ',*'
+  }
+}
+

java-network/build.gradle

@@ -1,5 +1,6 @@
 apply plugin: 'java'
 apply plugin: 'scala'
+apply plugin: 'osgi'
 
 dependencies {
   compile project(":network$scalaSuffix")
@@ -8,3 +9,30 @@ dependencies {
   compile externalDependency.scalaLibrary
 }
 
+ext.osgi_local_imports = [
+  'com.linkedin.norbert.cluster',
+  'com.linkedin.norbert.javacompat',
+  'com.linkedin.norbert.javacompat.cluster',
+  'com.linkedin.norbert.network',
+  'com.linkedin.norbert.network.client',
+  'com.linkedin.norbert.network.client.loadbalancer',
+  'com.linkedin.norbert.network.common',
+  'com.linkedin.norbert.network.netty',
+  'com.linkedin.norbert.network.partitioned',
+  'com.linkedin.norbert.network.partitioned.loadbalancer',
+  'com.linkedin.norbert.network.server']
+
+jar{
+  manifest {
+    name = 'Norbert Java Network'
+    symbolicName = 'com.linkedin.norbert.java-network'
+    instruction 'Bundle-Description', 'Norbert Java Network'
+    instruction 'Bundle-Vendor', 'LinkedIn'
+    /* We must not export com.linkedin.norbert as it collides with cluster bundle.
+     * However, using '!com.linkedin.norbert,*' did for some reason remove the version
+     * information, making importing of the package impossible.
+     */
+    instruction 'Export-Package', 'com.linkedin.norbert.javacompat.network;version="'+version+'"'
+    instruction 'Import-Package', createOsgiVersionedPackageList(osgi_local_imports) + ',*'
+  }
+}

network/build.gradle

@@ -1,5 +1,6 @@
 apply plugin: 'java'
 apply plugin: 'scala'
+apply plugin: 'osgi'
 
 dependencies {
   compile project(":cluster$scalaSuffix")
@@ -18,3 +19,20 @@ dependencies {
   testCompile externalDependency.junit
 }
 
+ext.osgi_local_imports = [
+  'com.linkedin.norbert',
+  'com.linkedin.norbert.cluster',
+  'com.linkedin.norbert.jmx',
+  'com.linkedin.norbert.logging',
+  'com.linkedin.norbert.norbertutils',
+  'com.linkedin.norbert.protos']
+
+jar{
+  manifest {
+    name = 'Norbert Network'
+    symbolicName = 'com.linkedin.norbert.network'
+    instruction 'Bundle-Description', 'Norbert Network'
+    instruction 'Bundle-Vendor', 'LinkedIn'
+    instruction 'Import-Package', createOsgiVersionedPackageList(osgi_local_imports) + ',*'
+  }
+}