/*
* 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.openejb.core.entity;
import org.apache.openejb.BeanContext;
import org.apache.openejb.InterfaceType;
import org.apache.openejb.OpenEJBException;
import org.apache.openejb.ProxyInfo;
import org.apache.openejb.core.ivm.EjbHomeProxyHandler;
import org.apache.openejb.core.ivm.EjbObjectProxyHandler;
import org.apache.openejb.util.ArrayEnumeration;
import org.apache.openejb.util.proxy.ProxyManager;
import javax.ejb.EJBLocalObject;
import javax.ejb.EJBObject;
import javax.ejb.RemoveException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.List;
import java.util.Vector;
public class EntityEjbHomeHandler extends EjbHomeProxyHandler {
public EntityEjbHomeHandler(final BeanContext beanContext, final InterfaceType interfaceType, final List<Class> interfaces, final Class mainInterface) {
super(beanContext, interfaceType, interfaces, mainInterface);
}
public Object createProxy(final Object primaryKey, final Class mainInterface) {
final Object proxy = super.createProxy(primaryKey, mainInterface);
final EjbObjectProxyHandler handler = (EjbObjectProxyHandler) ProxyManager.getInvocationHandler(proxy);
/*
* Register the handle with the BaseEjbProxyHandler.liveHandleRegistry
* If the bean is removed by its home or by an identical proxy, then the
* this proxy will be automatically invalidated because its properly registered
* with the liveHandleRegistry.
*/
registerHandler(handler.getRegistryId(), handler);
return proxy;
}
protected Object findX(final Class interfce, final Method method, final Object[] args, final Object proxy) throws Throwable {
final Object retValue;
try {
retValue = container.invoke(deploymentID, interfaceType, interfce, method, args, null);
} catch (final OpenEJBException e) {
logger.debug("entityEjbHomeHandler.containerInvocationFailure", e, e.getMessage());
throw e;
}
if (retValue instanceof Collection) {
final Object[] proxyInfos = ((Collection) retValue).toArray();
final Vector proxies = new Vector();
for (int i = 0; i < proxyInfos.length; i++) {
final ProxyInfo proxyInfo = (ProxyInfo) proxyInfos[i];
proxies.addElement(createProxy(proxyInfo.getPrimaryKey(), getMainInterface()));
}
return proxies;
} else if (retValue instanceof ArrayEnumeration) {
final ArrayEnumeration enumeration = (ArrayEnumeration) retValue;
for (int i = enumeration.size() - 1; i >= 0; --i) {
final ProxyInfo proxyInfo = (ProxyInfo) enumeration.get(i);
enumeration.set(i, createProxy(proxyInfo.getPrimaryKey(), getMainInterface()));
}
return enumeration;
} else if (retValue instanceof Enumeration) {
final Enumeration enumeration = (Enumeration) retValue;
final List proxies = new ArrayList();
while (enumeration.hasMoreElements()) {
final ProxyInfo proxyInfo = (ProxyInfo) enumeration.nextElement();
proxies.add(createProxy(proxyInfo.getPrimaryKey(), getMainInterface()));
}
return new ArrayEnumeration(proxies);
} else {
final ProxyInfo proxyInfo = (ProxyInfo) retValue;
return createProxy(proxyInfo.getPrimaryKey(), getMainInterface());
}
}
protected Object removeByPrimaryKey(final Class interfce, final Method method, final Object[] args, final Object proxy) throws Throwable {
final Object primKey = args[0];
// Check for the common mistake of passing the ejbObject instead of ejbObject.getPrimaryKey()
if (primKey instanceof EJBLocalObject) {
final Class ejbObjectProxyClass = primKey.getClass();
String ejbObjectName = null;
for (final Class clazz : ejbObjectProxyClass.getInterfaces()) {
if (EJBLocalObject.class.isAssignableFrom(clazz)) {
ejbObjectName = clazz.getSimpleName();
break;
}
}
throw new RemoveException("Invalid argument '" + ejbObjectName + "', expected primary key. Update to ejbLocalHome.remove(" + lcfirst(ejbObjectName) + ".getPrimaryKey())");
} else if (primKey instanceof EJBObject) {
final Class ejbObjectProxyClass = primKey.getClass();
String ejbObjectName = null;
for (final Class clazz : ejbObjectProxyClass.getInterfaces()) {
if (EJBObject.class.isAssignableFrom(clazz)) {
ejbObjectName = clazz.getSimpleName();
break;
}
}
throw new RemoveException("Invalid argument '" + ejbObjectName + "', expected primary key. Update to ejbHome.remove(" + lcfirst(ejbObjectName) + ".getPrimaryKey())");
}
container.invoke(deploymentID, interfaceType, interfce, method, args, primKey);
/*
* This operation takes care of invalidating all the EjbObjectProxyHanders associated with
* the same RegistryId. See this.createProxy().
*/
invalidateAllHandlers(EntityEjbObjectHandler.getRegistryId(container, deploymentID, primKey));
return null;
}
private static String lcfirst(final String s) {
if (s == null || s.length() < 1) {
return s;
}
final StringBuilder sb = new StringBuilder(s);
sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));
return sb.toString();
}
protected EjbObjectProxyHandler newEjbObjectHandler(final BeanContext beanContext, final Object pk, final InterfaceType interfaceType, final List<Class> interfaces, final Class mainInterface) {
return new EntityEjbObjectHandler(getBeanContext(), pk, interfaceType, interfaces, mainInterface);
}
}