1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.jetspeed.layout.impl;
18
19 import org.apache.jetspeed.ajax.AjaxRequestService;
20 import org.apache.jetspeed.pipeline.PipelineException;
21 import org.apache.jetspeed.pipeline.valve.Valve;
22 import org.apache.jetspeed.pipeline.valve.ValveContext;
23 import org.apache.jetspeed.request.RequestContext;
24
25 public class LayoutValve implements Valve
26 {
27
28 // Ajax service handler
29 AjaxRequestService ajaxService = null;
30
31 public LayoutValve(AjaxRequestService ajaxService)
32 {
33 this.ajaxService = ajaxService;
34 }
35
36 public void initialize() throws PipelineException
37 {
38 }
39
40 public void invoke(RequestContext requestContext,
41 ValveContext valveContext) throws PipelineException
42 {
43 try
44 {
45 // Delegate the call to the AjaxService
46 ajaxService.process(requestContext);
47
48 if(valveContext != null)
49 {
50 valveContext.invokeNext(requestContext);
51 }
52 }
53 catch (Throwable t)
54 {
55 throw new PipelineException(t);
56 }
57 }
58 }