001 // Copyright May 8, 2006 The Apache Software Foundation 002 // 003 // Licensed under the Apache License, Version 2.0 (the "License"); 004 // you may not use this file except in compliance with the License. 005 // You may obtain a copy of the License at 006 // 007 // http://www.apache.org/licenses/LICENSE-2.0 008 // 009 // Unless required by applicable law or agreed to in writing, software 010 // distributed under the License is distributed on an "AS IS" BASIS, 011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 // See the License for the specific language governing permissions and 013 // limitations under the License. 014 package org.apache.tapestry.services.impl; 015 016 import org.apache.tapestry.IRequestCycle; 017 import org.apache.tapestry.asset.AssetFactory; 018 import org.apache.tapestry.engine.IEngineService; 019 import org.apache.tapestry.markup.MarkupWriterSource; 020 import org.apache.tapestry.services.RequestLocaleManager; 021 import org.apache.tapestry.services.ResponseBuilder; 022 import org.apache.tapestry.services.ResponseContributor; 023 import org.apache.tapestry.web.WebRequest; 024 import org.apache.tapestry.web.WebResponse; 025 026 import java.io.IOException; 027 import java.util.ArrayList; 028 import java.util.List; 029 030 031 /** 032 * Handles determining dojo ajax requests. 033 * 034 * @author jkuhnert 035 */ 036 public class DojoAjaxResponseContributorImpl implements ResponseContributor 037 { 038 public static final String DOJO_AJAX_HEADER = "dojo-ajax-request"; 039 040 private RequestLocaleManager _localeManager; 041 042 private MarkupWriterSource _markupWriterSource; 043 044 private WebResponse _webResponse; 045 046 private WebRequest _webRequest; 047 048 private String _exceptionPageName; 049 050 private String _staleSessionPageName; 051 052 private String _staleLinkPageName; 053 054 private AssetFactory _assetFactory; 055 056 private IEngineService _pageService; 057 058 /** 059 * {@inheritDoc} 060 */ 061 public ResponseBuilder createBuilder(IRequestCycle cycle) 062 throws IOException 063 { 064 List errorPages = new ArrayList(); 065 errorPages.add(_exceptionPageName); 066 errorPages.add(_staleSessionPageName); 067 errorPages.add(_staleLinkPageName); 068 069 return new DojoAjaxResponseBuilder(cycle, _localeManager, 070 _markupWriterSource, 071 _webResponse, errorPages, _assetFactory, 072 _webResponse.getNamespace(), _pageService); 073 } 074 075 /** 076 * {@inheritDoc} 077 */ 078 public boolean handlesResponse(IRequestCycle cycle) 079 { 080 return _webRequest.getHeader(DOJO_AJAX_HEADER) != null; 081 } 082 083 public void setLocaleManager(RequestLocaleManager localeManager) 084 { 085 _localeManager = localeManager; 086 } 087 088 public void setMarkupWriterSource(MarkupWriterSource markupWriterSource) 089 { 090 _markupWriterSource = markupWriterSource; 091 } 092 093 public void setWebResponse(WebResponse webResponse) 094 { 095 _webResponse = webResponse; 096 } 097 098 public void setWebRequest(WebRequest webRequest) 099 { 100 _webRequest = webRequest; 101 } 102 103 public void setExceptionPageName(String name) 104 { 105 _exceptionPageName = name; 106 } 107 108 public void setStaleSessionPageName(String name) 109 { 110 _staleSessionPageName = name; 111 } 112 113 public void setStaleLinkPageName(String name) 114 { 115 _staleLinkPageName = name; 116 } 117 118 public void setAssetFactory(AssetFactory factory) 119 { 120 _assetFactory = factory; 121 } 122 123 public void setPageService(IEngineService service) 124 { 125 _pageService = service; 126 } 127 }