WebServiceImp


1   /*
2    * Copyright 2003-2006 the original author or authors.
3    * Licensed under the Apache License, Version 2.0 (the "License");
4    * you may not use this file except in compliance with the License.
5    * You may obtain a copy of the License at
6    *
7    * http://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   * 
15   */
16  package com.jdon.controller.service;
17  
18  import javax.servlet.http.HttpServletRequest  ;
19  
20  import com.jdon.bussinessproxy.TargetMetaDef;
21  import com.jdon.bussinessproxy.meta.MethodMetaArgs;
22  import com.jdon.container.ContainerWrapper;
23  import com.jdon.container.access.TargetMetaRequest;
24  import com.jdon.container.access.UserTargetMetaDefFactory;
25  import com.jdon.container.finder.ContainerCallback;
26  import com.jdon.util.Debug;
27  
28  /**
29   * @author <a HREF="mailto:banqiao@jdon.com">banq</a>
30   *
31   */
32  public class WebServiceImp implements Service{
33      
34      private final static String   module = WebServiceImp.class.getName();
35      private ContainerCallback containerCallback;
36      private WebServiceAccessor webServiceAccessor;
37      
38      public WebServiceImp(WebServiceAccessor webServiceAccessor,
39                            ContainerCallback containerCallback){        
40          this.webServiceAccessor = webServiceAccessor;
41          this.containerCallback = containerCallback;
42      }
43      
44      /**
45       * running the service, and return the result
46       */
47      public Object   execute(String   name,
48              MethodMetaArgs methodMetaArgs, 
49              HttpServletRequest   request)  throws Exception  {
50          if ((methodMetaArgs == null) || (methodMetaArgs.getMethodName() == null)){
51              Debug.logWarning(" methodMetaArgs is null. cann't invoke service.execute");
52          }
53          Debug.logVerbose("++++++++++++++++++++++++++++++<begin: invoking from jdonframework.xml", module);
54          Debug.logVerbose("+++++++++++++++execute new service='"+ name + "' method='" + methodMetaArgs.getMethodName() +"'", module);
55          ContainerWrapper cw = containerCallback.getContainerWrapper();
56          TargetMetaDef targetMetaDef = UserTargetMetaDefFactory.getTargetMetaDef(name, cw);
57          if (targetMetaDef == null) return null;        
58          Object   result = execute(targetMetaDef, methodMetaArgs, request);        
59          Debug.logVerbose("+++++++++++++++execute service='"+ name + "' method='" + methodMetaArgs.getMethodName() + "' successfully!", module);
60          Debug.logVerbose("++++++++++++++++++++++++++++++<end:", module);
61          return result;
62      }
63  
64      /**
65       * running the service, and return the result
66       */
67      public Object   execute( TargetMetaDef targetMetaDef,
68                            MethodMetaArgs methodMetaArgs,
69                            HttpServletRequest   request)  throws Exception  {
70          Debug.logVerbose("[JdonFramework]enter service execution core ", module);
71          TargetMetaRequest targetMetaRequest = UserTargetMetaDefFactory.create(targetMetaDef, request);
72          targetMetaRequest.setMethodMetaArgs(methodMetaArgs);
73          return webServiceAccessor.execute(targetMetaRequest, request);        
74      }
75  }
76
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