diff options
Diffstat (limited to 'branches/sca-java-2.0-M4/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceWrapper.java')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceWrapper.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceWrapper.java b/branches/sca-java-2.0-M4/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceWrapper.java new file mode 100644 index 0000000000..7c96606cf6 --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceWrapper.java @@ -0,0 +1,64 @@ +/* + * 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.tuscany.sca.implementation.java.context; + +import org.apache.tuscany.sca.core.factory.InstanceWrapper; +import org.apache.tuscany.sca.core.scope.TargetDestructionException; +import org.apache.tuscany.sca.core.scope.TargetInitializationException; +import org.apache.tuscany.sca.implementation.java.invocation.EventInvoker; + +/** + * @version $Rev$ $Date$ + */ +public class ReflectiveInstanceWrapper<T> implements InstanceWrapper<T> { + private final EventInvoker<T> initInvoker; + private final EventInvoker<T> destroyInvoker; + private final T instance; + + public ReflectiveInstanceWrapper(T instance, EventInvoker<T> initInvoker, EventInvoker<T> destroyInvoker) { + this.instance = instance; + this.initInvoker = initInvoker; + this.destroyInvoker = destroyInvoker; + } + + public T getInstance() { + return instance; + } + + public void start() throws TargetInitializationException { + if (initInvoker != null) { + try { + initInvoker.invokeEvent(instance); + } catch (Exception e) { + try { + stop(); + } catch (TargetDestructionException e1) { + throw new TargetInitializationException("TargetDestructionException while handling init exception", e); + } + throw new TargetInitializationException(e); + } + } + } + + public void stop() throws TargetDestructionException { + if (destroyInvoker != null) { + destroyInvoker.invokeEvent(instance); + } + } +} |