serviceaccessorimp.java

一个非常好的FRAMWRK!是一个外国组织做的!不!

/*
 * Copyright 2003-2005 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.container.access;

import com.jdon.aop.AopClient;
import com.jdon.container.ContainerWrapper;
import com.jdon.container.finder.ComponentKeys;
import com.jdon.container.visitor.ComponentVisitor;
import com.jdon.util.Debug;

/**
 * @author <a href="mailto:banqJdon<AT>jdon.com">banq</a>
 *
 */

public class ServiceAccessorImp implements ServiceAccessor {
    private final static String module = ServiceAccessorImp.class.getName();
    
    /* (non-Javadoc)
     * @see com.jdon.container.access.ServiceAccessor#getService(com.jdon.container.access.UserTargetMetaDef)
     */
    public Object getService(TargetMetaRequest targetMetaRequest) {
        Debug.logVerbose(" enter getService: " + ComponentKeys.PROXYINSTANCE_FACTORY + " in action", module);
        targetMetaRequest.setVisitableName(ComponentKeys.PROXYINSTANCE_FACTORY);
        ComponentVisitor componentVisitor = targetMetaRequest.getComponentVisitor();
        return componentVisitor.visit(targetMetaRequest);    
    }

    /* (non-Javadoc)
     * @see com.jdon.container.access.ServiceAccessor#executeService(com.jdon.container.access.UserTargetMetaDef)
     */
    public Object executeService(TargetMetaRequest targetMetaRequest, ContainerWrapper cw) throws Exception{
        Debug.logVerbose("enter service execution core ", module);
        Object result = null;
        try {                    
          AopClient aopClient = (AopClient) cw.lookup(ComponentKeys.AOP_CLIENT);                
          result = aopClient.invoke(targetMetaRequest, targetMetaRequest.getMethodMetaArgs());          
        } catch (Exception ex) {
          Debug.logError(" execute the service error: " + ex, module);
          throw new Exception("execute service error: " + ex);
        } catch (Throwable ex) {
          Debug.logError("  execute Service error: " + ex, module);
          throw new Exception("  execute Service error: " + ex);
        }
        return result;            }

}