| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.servicediagnostics.sample |
| |
| import org.osgi.framework.BundleContext |
| import org.apache.felix.dm.DependencyActivatorBase |
| import org.apache.felix.dm.DependencyManager |
| import org.apache.felix.servicediagnostics.ServiceDiagnostics |
| |
| import java.util. { Hashtable => jHT } |
| |
| /** |
| * This class is a basic DependencyManager based demonstration |
| * |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| class TestDM extends DependencyActivatorBase |
| { |
| var diagnostics:ServiceDiagnostics = _ //injected |
| |
| override def init(bc:BundleContext, dm:DependencyManager) |
| { |
| // register a callback in this class to try the engine alone |
| // in text mode, when everything is started |
| dm.add(createComponent |
| .setImplementation(this) |
| .add(createServiceDependency |
| .setService(classOf[TestDS]) // also wait for DS initialization |
| .setAutoConfig(false) |
| .setRequired(true)) |
| .add(createServiceDependency |
| .setService(classOf[ServiceDiagnostics]) |
| .setAutoConfig("diagnostics") |
| .setRequired(true))) |
| |
| // initialize some sample services for testing purpose (see also TestDS) |
| |
| // |
| // test1: |
| // DM1 -> DS1 -> DM2 -> Unavail |
| |
| dm.add(createComponent |
| .setInterface(classOf[DM1].getName, null) |
| .setImplementation(classOf[DM1]) |
| .add(createServiceDependency |
| .setService(classOf[DS1]) |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| dm.add(createComponent |
| .setInterface(classOf[DM2].getName, null) |
| .setImplementation(classOf[DM2]) |
| .add(createServiceDependency |
| .setService(classOf[Runnable]) //Unavail |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| // test2: properties |
| // DMP(0,1) -> DSP(0) -> DMP(2) -> Unavail |
| |
| dm.add(createComponent |
| .setInterface(classOf[DMP].getName, new jHT[String,String]() {{ |
| put("p", "0") |
| put("q", "1") |
| }}) |
| .setImplementation(classOf[DMP]) |
| .add(createServiceDependency |
| .setService(classOf[DSP], "(p=0)") |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| dm.add(createComponent |
| .setInterface(classOf[DMP].getName, new jHT[String,String]() {{ |
| put("p", "2") |
| }}) |
| .setImplementation(classOf[DMP]) |
| .add(createServiceDependency |
| .setService(classOf[Runnable]) // Unavail |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| // test3: loop (required) |
| // DML1 -> DSL1 -> DML2 -> DML1 |
| |
| dm.add(createComponent |
| .setInterface(classOf[DML1].getName, new jHT[String,String]() {{ |
| put("p", "1") |
| put("q", "1") |
| }}) |
| .setImplementation(classOf[DML1]) |
| .add(createServiceDependency |
| .setService(classOf[DSL1], "(q=1)") |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| dm.add(createComponent |
| .setInterface(classOf[DML2].getName, new jHT[String,String]() {{ |
| put("p", "2") |
| put("q", "2") |
| }}) |
| .setImplementation(classOf[DML2]) |
| .add(createServiceDependency |
| .setService(classOf[DML1]) //Loop |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true)) |
| .add(createServiceDependency |
| .setService(classOf[TestDS]) //Available with no deps |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| // test4: loop (optional) |
| // DSL2 -(opt)-> DML3 --> DSL3 -> DSL2 |
| |
| dm.add(createComponent |
| .setInterface(classOf[DML3].getName, new jHT[String,String]() {{ |
| put("p", "3") |
| put("q", "3") |
| }}) |
| .setImplementation(classOf[DML3]) |
| .add(createServiceDependency |
| .setService(classOf[DSL3], "(q=3)") |
| .setAutoConfig(false) |
| .setCallbacks(null, null, null) |
| .setRequired(true))) |
| |
| } |
| |
| override def destroy(bc:BundleContext, dm:DependencyManager) = {} |
| |
| def start = try |
| { |
| println("unavail="+diagnostics.notavail) |
| } |
| catch |
| { |
| case (e:Exception) => e.printStackTrace |
| } |
| } |
| |
| //sample service classes |
| class DM1 |
| class DM2 |
| class DMP |
| class DML1 |
| class DML2 |
| class DML3 |