diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-M5.1-RC1/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/JavaReflectionAdapter.java')
-rw-r--r-- | sca-java-2.x/tags/2.0-M5.1-RC1/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/JavaReflectionAdapter.java | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/sca-java-2.x/tags/2.0-M5.1-RC1/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/JavaReflectionAdapter.java b/sca-java-2.x/tags/2.0-M5.1-RC1/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/JavaReflectionAdapter.java deleted file mode 100644 index 651c967aad..0000000000 --- a/sca-java-2.x/tags/2.0-M5.1-RC1/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/JavaReflectionAdapter.java +++ /dev/null @@ -1,157 +0,0 @@ -/* - * 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.binding.ejb.util; - -import java.beans.PropertyDescriptor; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.security.AccessController; -import java.security.PrivilegedAction; -import java.util.Collections; -import java.util.HashMap; -import java.util.Map; -import java.util.WeakHashMap; - -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * An adapter for java classes, indexes the methods by name and provides an - * invoke method that takes a method name. - * - * @version $Rev$ $Date$ - */ -final class JavaReflectionAdapter { - - private static Map<Class, JavaReflectionAdapter> adapters = - Collections.synchronizedMap(new WeakHashMap<Class, JavaReflectionAdapter>()); - - private static final Map<Class, Object> DEFAULT_VALUES = new HashMap<Class, Object>(); - static { - DEFAULT_VALUES.put(boolean.class, Boolean.FALSE); - DEFAULT_VALUES.put(byte.class, new Byte((byte)0)); - DEFAULT_VALUES.put(char.class, new Character((char)0)); - DEFAULT_VALUES.put(short.class, new Short((short)0)); - DEFAULT_VALUES.put(int.class, Integer.valueOf(0)); - DEFAULT_VALUES.put(long.class, new Long(0)); - DEFAULT_VALUES.put(float.class, new Float(0.0)); - DEFAULT_VALUES.put(double.class, new Double(0.0)); - } - - private Map<String, Method> methodMap = new HashMap<String, Method>(); - - /** - * Constructor - * - * @param clazz - */ - private JavaReflectionAdapter(final Class clazz) { - // Index the methods on the implementation class - // FIXME J2 Security - promote this to callers of this method - Method[] methods = AccessController.doPrivileged(new PrivilegedAction<Method[]>() { - public Method[] run() { - return clazz.getMethods(); - } - }); - for (int i = 0; i < methods.length; i++) { - methodMap.put(methods[i].getName(), methods[i]); - } - } - - /** - * Create a java reflection adapter - * - * @param clazz - */ - static synchronized JavaReflectionAdapter createJavaReflectionAdapter(Class clazz) { - JavaReflectionAdapter adapter = (JavaReflectionAdapter)adapters.get(clazz); - if (adapter == null) { - adapter = new JavaReflectionAdapter(clazz); - adapters.put(clazz, adapter); - } - return adapter; - } - - /** - * Return the specified method - * - * @param methodName - * @return - * @throws NoSuchMethodException - */ - Method getMethod(String methodName) throws NoSuchMethodException { - - Method method = (Method)methodMap.get(methodName); - if (method == null) { - throw new NoSuchMethodException(methodName); - } - return method; - } - - /** - * Returns a map containing the methods on the class, keyed by name - * - * @return - */ - Map getMethods() { - return methodMap; - } - - /** - * Invoke a method using Java reflection. - * - * @param method - * @param object - * @param args - * @return - * @throws InvocationTargetException - * @throws IllegalAccessException - */ - Object invoke(Method method, Object object, Object[] args) throws InvocationTargetException, - IllegalAccessException { - Class[] parameterTypes = method.getParameterTypes(); - for (int i = 0; i < parameterTypes.length; i++) { - Class parameterType = parameterTypes[i]; - if (args[i] == null && parameterType.isPrimitive()) { - args[i] = DEFAULT_VALUES.get(parameterType); - } - } - return method.invoke(object, args); - } - - /** - * Set the java bean property - * - * @param bean - * @param propertyName - * @param value - * @return - */ - boolean setProperty(Object bean, String propertyName, Object value) { - try { - PropertyDescriptor propertyDescriptor = new PropertyDescriptor(propertyName, bean.getClass()); - Method writeMethod = propertyDescriptor.getWriteMethod(); - writeMethod.invoke(bean, new Object[] {value}); - return true; - } catch (InvocationTargetException e) { - throw new ServiceRuntimeException(e.getTargetException()); - } catch (Exception e) { - return false; - } - } -} |