diff options
Diffstat (limited to 'sandbox/ant/sca/tags/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceFactory.java')
-rw-r--r-- | sandbox/ant/sca/tags/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceFactory.java | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sandbox/ant/sca/tags/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceFactory.java b/sandbox/ant/sca/tags/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceFactory.java new file mode 100644 index 0000000000..73b7990a79 --- /dev/null +++ b/sandbox/ant/sca/tags/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/context/ReflectiveInstanceFactory.java @@ -0,0 +1,86 @@ +/* + * 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 java.lang.reflect.Constructor; +import java.lang.reflect.InvocationTargetException; + +import org.apache.tuscany.sca.core.factory.InstanceWrapper; +import org.apache.tuscany.sca.core.factory.ObjectCreationException; +import org.apache.tuscany.sca.core.factory.ObjectFactory; +import org.apache.tuscany.sca.implementation.java.injection.Injector; +import org.apache.tuscany.sca.implementation.java.invocation.EventInvoker; + +/** + * @version $Rev$ $Date$ + */ +public class ReflectiveInstanceFactory<T> implements InstanceFactory<T> { + private final Constructor<T> ctr; + private final ObjectFactory<?>[] ctrArgs; + private final Injector<T>[] injectors; + private final EventInvoker<T> initInvoker; + private final EventInvoker<T> destroyInvoker; + + public ReflectiveInstanceFactory(Constructor<T> ctr, + ObjectFactory<?>[] ctrArgs, + Injector<T>[] injectors, + EventInvoker<T> initInvoker, + EventInvoker<T> destroyInvoker) { + this.ctr = ctr; + this.ctrArgs = ctrArgs; + this.injectors = injectors; + this.initInvoker = initInvoker; + this.destroyInvoker = destroyInvoker; + } + + public InstanceWrapper<T> newInstance() { + T instance; + try { + if (ctrArgs != null) { + Object[] args = new Object[ctrArgs.length]; + for (int i = 0; i < args.length; i++) { + args[i] = ctrArgs[i].getInstance(); + } + instance = ctr.newInstance(args); + } else { + instance = ctr.newInstance(); + } + } catch (InstantiationException e) { + String name = ctr.getDeclaringClass().getName(); + throw new AssertionError("Class is not instantiable [" + name + "]"); + } catch (IllegalAccessException e) { + String name = ctr.getName(); + throw new AssertionError("Constructor is not accessible [" + name + "]"); + } catch ( + InvocationTargetException e) { + String name = ctr.getName(); + throw new ObjectCreationException("Exception thrown by constructor: " + name, e); + } + + if (injectors != null) { + for (Injector<T> injector : injectors) { + //FIXME Injectors should never be null + if (injector != null) + injector.inject(instance); + } + } + + return new ReflectiveInstanceWrapper<T>(instance, initInvoker, destroyInvoker); + } +} |