com.jdon.aop.reflection.MethodConstructor Maven / Gradle / Ivy
/**
* Copyright 2003-2006 the original author or authors. Licensed 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 com.jdon.aop.reflection;
import java.lang.reflect.Method;
import com.jdon.bussinessproxy.TargetMetaDef;
import com.jdon.bussinessproxy.meta.MethodMetaArgs;
import com.jdon.bussinessproxy.target.TargetServiceFactory;
import com.jdon.container.access.TargetMetaRequest;
import com.jdon.container.access.TargetMetaRequestsHolder;
import com.jdon.container.finder.ContainerCallback;
import com.jdon.util.Debug;
public class MethodConstructor {
private final static String module = MethodConstructor.class.getName();
private final MethodInvokerUtil methodInvokerUtil ;
private final TargetMetaRequestsHolder targetMetaRequestsHolder;
private final ContainerCallback containerCallback;
public MethodConstructor(ContainerCallback containerCallback,
TargetMetaRequestsHolder targetMetaRequestsHolder) {
this.containerCallback = containerCallback;
this.targetMetaRequestsHolder = targetMetaRequestsHolder;
this.methodInvokerUtil = new MethodInvokerUtil(targetMetaRequestsHolder);
}
/**
* @return Returns the methodInvokerUtil.
*/
public MethodInvokerUtil getMethodInvokerUtil() {
return methodInvokerUtil;
}
/**
* ejb's method creating must at first get service's EJB Object;
* pojo's method creating can only need service's class.
*
* @param targetServiceFactory
* @param targetMetaRequest
* @param methodMetaArgs
* @return
*/
public Method createMethod(TargetServiceFactory targetServiceFactory) {
Method method = null;
Debug.logVerbose("[JdonFramework] enter create the Method " , module);
try {
TargetMetaRequest targetMetaRequest = targetMetaRequestsHolder.getTargetMetaRequest();
if (targetMetaRequest.getTargetMetaDef().isEJB()) {
Object obj= methodInvokerUtil.createTargetObject(targetServiceFactory);
method = createObjectMethod(obj, targetMetaRequest.getMethodMetaArgs());
}else{
method = createPojoMethod();
}
} catch (Exception ex) {
Debug.logError("[JdonFramework] createMethod error: " + ex, module);
}
return method;
}
/**
* create a method object by its meta definition
* @param targetMetaDef
* @param cw
* @param methodMetaArgs
*/
public Method createPojoMethod() {
Method method = null;
TargetMetaRequest targetMetaRequest = targetMetaRequestsHolder.getTargetMetaRequest();
TargetMetaDef targetMetaDef = targetMetaRequest.getTargetMetaDef();
MethodMetaArgs methodMetaArgs = targetMetaRequest.getMethodMetaArgs();
Debug.logVerbose("[JdonFramework] createPOJO Method :" + methodMetaArgs.getMethodName() + " for target service: " + targetMetaDef.getName(), module);
try {
Class thisCLass = containerCallback.getContainerWrapper().getComponentClass(targetMetaDef.getName());
if (thisCLass == null) return null;
method = thisCLass.getMethod(methodMetaArgs.getMethodName(),
methodMetaArgs.getParamTypes());
} catch (NoSuchMethodException ne) {
Debug.logError("[JdonFramework] method name:"
+ methodMetaArgs.getMethodName() + " or method parameters type don't match with your service's method", module);
Object types[] = methodMetaArgs.getParamTypes();
for(int i = 0; i