| /* |
| * 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.axis2.transport.testkit.tests; |
| |
| import java.lang.reflect.Array; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Type; |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.axis2.transport.testkit.Adapter; |
| import org.apache.commons.lang.builder.HashCodeBuilder; |
| |
| public class TestResource { |
| private enum Status { UNRESOLVED, RESOLVED, SETUP, RECYCLED }; |
| |
| private interface Invocable { |
| void execute(Object object) throws Exception; |
| } |
| |
| private static class MethodInvocation implements Invocable { |
| private final Method method; |
| private final Object[] args; |
| |
| public MethodInvocation(Method method, Object[] args) { |
| this.method = method; |
| this.args = args; |
| } |
| |
| public void execute(Object object) throws Exception { |
| try { |
| method.invoke(object, args); |
| } catch (InvocationTargetException ex) { |
| Throwable cause = ex.getCause(); |
| if (cause instanceof Error) { |
| throw (Error)cause; |
| } else if (cause instanceof Exception) { |
| throw (Exception)cause; |
| } else { |
| throw ex; |
| } |
| } |
| } |
| } |
| |
| private static class FieldResetter implements Invocable { |
| private final Field field; |
| |
| public FieldResetter(Field field) { |
| this.field = field; |
| } |
| |
| public void execute(Object object) throws Exception { |
| field.set(object, null); |
| } |
| } |
| |
| private final Object instance; |
| private final Object target; |
| private final Set<TestResource> directDependencies = new HashSet<TestResource>(); |
| private final LinkedList<Invocable> initializers = new LinkedList<Invocable>(); |
| private final List<Invocable> finalizers = new LinkedList<Invocable>(); |
| private Status status = Status.UNRESOLVED; |
| private boolean hasHashCode; |
| private int hashCode; |
| |
| public TestResource(Object instance) { |
| this.instance = instance; |
| Object target = instance; |
| while (target instanceof Adapter) { |
| target = ((Adapter)target).getTarget(); |
| } |
| this.target = target; |
| } |
| |
| public void resolve(TestResourceSet resourceSet) { |
| if (status != Status.UNRESOLVED) { |
| return; |
| } |
| for (Class<?> clazz = target.getClass(); !clazz.equals(Object.class); |
| clazz = clazz.getSuperclass()) { |
| for (Method method : clazz.getDeclaredMethods()) { |
| if (method.getAnnotation(Setup.class) != null) { |
| Type[] parameterTypes = method.getGenericParameterTypes(); |
| Object[] args = new Object[parameterTypes.length]; |
| for (int i=0; i<parameterTypes.length; i++) { |
| Type parameterType = parameterTypes[i]; |
| if (!(parameterType instanceof Class)) { |
| throw new Error("Generic parameters not supported in " + method); |
| } |
| Class<?> parameterClass = (Class<?>)parameterType; |
| if (parameterClass.isArray()) { |
| Class<?> componentType = parameterClass.getComponentType(); |
| TestResource[] resources = resourceSet.findResources(componentType, true); |
| Object[] arg = (Object[])Array.newInstance(componentType, resources.length); |
| for (int j=0; j<resources.length; j++) { |
| TestResource resource = resources[j]; |
| directDependencies.add(resource); |
| arg[j] = resource.getInstance(); |
| } |
| args[i] = arg; |
| } else { |
| TestResource[] resources = resourceSet.findResources(parameterClass, true); |
| if (resources.length == 0) { |
| throw new Error(target.getClass().getName() + " depends on " + |
| parameterClass.getName() + ", but none found"); |
| } else if (resources.length > 1) { |
| throw new Error(target.getClass().getName() + " depends on " + |
| parameterClass.getName() + ", but multiple candidates found"); |
| |
| } |
| TestResource resource = resources[0]; |
| directDependencies.add(resource); |
| args[i] = resource.getInstance(); |
| } |
| } |
| method.setAccessible(true); |
| initializers.addFirst(new MethodInvocation(method, args)); |
| } else if (method.getAnnotation(TearDown.class) != null && method.getParameterTypes().length == 0) { |
| method.setAccessible(true); |
| finalizers.add(new MethodInvocation(method, null)); |
| } |
| } |
| for (Field field : clazz.getDeclaredFields()) { |
| if (field.getAnnotation(Transient.class) != null) { |
| field.setAccessible(true); |
| finalizers.add(new FieldResetter(field)); |
| } |
| } |
| } |
| status = Status.RESOLVED; |
| } |
| |
| public Object getInstance() { |
| return instance; |
| } |
| |
| public Object getTarget() { |
| return target; |
| } |
| |
| public boolean hasLifecycle() { |
| return !(initializers.isEmpty() && finalizers.isEmpty()); |
| } |
| |
| public void setUp() throws Exception { |
| if (status != Status.RESOLVED) { |
| throw new IllegalStateException(); |
| } |
| for (Invocable initializer : initializers) { |
| initializer.execute(target); |
| } |
| status = Status.SETUP; |
| } |
| |
| public void recycle(TestResource resource) { |
| if (status != Status.RESOLVED || resource.status != Status.SETUP || !equals(resource)) { |
| throw new IllegalStateException(); |
| } |
| status = Status.SETUP; |
| resource.status = Status.RECYCLED; |
| } |
| |
| public void tearDown() throws Exception { |
| if (status != Status.SETUP) { |
| throw new IllegalStateException(); |
| } |
| for (Invocable finalizer : finalizers) { |
| finalizer.execute(target); |
| } |
| status = Status.RESOLVED; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof TestResource) { |
| TestResource other = (TestResource)obj; |
| return target == other.target && directDependencies.equals(other.directDependencies); |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| int hashCode; |
| if (hasHashCode) { |
| hashCode = this.hashCode; |
| } else { |
| hashCode = new HashCodeBuilder().append(target).append(directDependencies).toHashCode(); |
| if (status != Status.UNRESOLVED) { |
| this.hashCode = hashCode; |
| } |
| } |
| return hashCode; |
| } |
| |
| @Override |
| public String toString() { |
| Class<?> clazz = target.getClass(); |
| String simpleName = clazz.getSimpleName(); |
| if (simpleName.length() > 0) { |
| return simpleName; |
| } else { |
| return "<anonymous " + clazz.getSuperclass().getSimpleName() + ">"; |
| } |
| } |
| } |