Source Code Cross Referenced for DefaultURLRewriter.java in  » Library » Apache-beehive-1.0.2-src » org » apache » beehive » netui » pageflow » internal » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Library » Apache beehive 1.0.2 src » org.apache.beehive.netui.pageflow.internal 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         * 
009:         *     http://www.apache.org/licenses/LICENSE-2.0
010:         * 
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         *
017:         * $Header:$
018:         */
019:        package org.apache.beehive.netui.pageflow.internal;
020:
021:        import javax.servlet.ServletContext;
022:        import javax.servlet.ServletRequest;
023:        import javax.servlet.ServletResponse;
024:        import javax.servlet.http.HttpServletRequest;
025:
026:        import org.apache.beehive.netui.core.urls.MutableURI;
027:        import org.apache.beehive.netui.core.urls.URLRewriter;
028:        import org.apache.beehive.netui.core.urls.URLType;
029:        import org.apache.beehive.netui.core.urls.AjaxUrlInfo;
030:        import org.apache.beehive.netui.pageflow.ServletContainerAdapter;
031:        import org.apache.beehive.netui.pageflow.requeststate.INameable;
032:        import org.apache.beehive.netui.pageflow.scoping.ScopedServletUtils;
033:        import org.apache.beehive.netui.util.logging.Logger;
034:
035:        public class DefaultURLRewriter extends URLRewriter {
036:            private static final Logger _log = Logger
037:                    .getInstance(DefaultURLRewriter.class);
038:
039:            public String getNamePrefix(ServletContext servletContext,
040:                    ServletRequest request, String name) {
041:                return "";
042:            }
043:
044:            /**
045:             * This method will get the prefix for all URLs that are used for AJAX processing
046:             * @param servletContext the current ServletContext.
047:             * @param request the current ServletRequest.
048:             * @param nameable the INamable object that will handle the request
049:             */
050:            public AjaxUrlInfo getAjaxUrl(ServletContext servletContext,
051:                    ServletRequest request, Object nameable) {
052:                HttpServletRequest req = (HttpServletRequest) request;
053:                // the default behavior is to set the parameter as the nameable's name or null
054:                String name = null;
055:                if (nameable instanceof  INameable)
056:                    name = ((INameable) nameable).getObjectName();
057:
058:                String path = req.getServletPath();
059:                int idx = path.lastIndexOf('/');
060:                if (idx != -1) {
061:                    path = "/" + path.substring(1, idx);
062:                }
063:
064:                path = req.getContextPath() + path;
065:                return new AjaxUrlInfo(path, name);
066:            }
067:
068:            public void rewriteURL(ServletContext servletContext,
069:                    ServletRequest request, ServletResponse response,
070:                    MutableURI url, URLType type, boolean needsToBeSecure) {
071:                ServletContainerAdapter servletContainerAdapter = AdapterManager
072:                        .getServletContainerAdapter(servletContext);
073:
074:                // If url is not absolute, then do default secure/unsecure rewriting
075:                if (!url.isAbsolute()) {
076:                    if (needsToBeSecure) {
077:                        if (!request.isSecure()) {
078:                            int securePort = servletContainerAdapter
079:                                    .getSecureListenPort((HttpServletRequest) request);
080:
081:                            if (securePort != -1) {
082:                                internalRewriteUrl(url, "https", securePort,
083:                                        request.getServerName());
084:                            } else {
085:                                if (_log.isWarnEnabled()) {
086:                                    _log
087:                                            .warn("Could not rewrite URL "
088:                                                    + url.getURIString(null)
089:                                                    + " to be secure because"
090:                                                    + " a secure port was not provided by the ServletContainerAdapter.");
091:                                }
092:                            }
093:                        }
094:                    } else {
095:                        if (request.isSecure()) {
096:                            int listenPort = servletContainerAdapter
097:                                    .getListenPort((HttpServletRequest) request);
098:
099:                            if (listenPort != -1) {
100:                                internalRewriteUrl(url, "http", listenPort,
101:                                        request.getServerName());
102:                            } else {
103:                                if (_log.isWarnEnabled()) {
104:                                    _log
105:                                            .warn("Could not rewrite URL "
106:                                                    + url.getURIString(null)
107:                                                    + " to be non-secure"
108:                                                    + " because a port was not provided by the ServletContainerAdapter.");
109:                                }
110:                            }
111:                        }
112:                    }
113:                }
114:
115:                //
116:                // If the current request has a special parameter that addresses a named 'scope',
117:                // add the parameter to the URL.
118:                //
119:                String scopeID = request
120:                        .getParameter(ScopedServletUtils.SCOPE_ID_PARAM);
121:                if (scopeID != null) {
122:                    // check to see if the param is already there.
123:                    if (url.getParameter(ScopedServletUtils.SCOPE_ID_PARAM) == null) {
124:                        url.addParameter(ScopedServletUtils.SCOPE_ID_PARAM,
125:                                scopeID, true);
126:                    }
127:                }
128:            }
129:
130:            private static void internalRewriteUrl(MutableURI url,
131:                    String protocol, int port, String serverName) {
132:                // Need to build up the url
133:                url.setScheme(protocol);
134:                url.setHost(serverName);
135:                url.setPort(port);
136:            }
137:
138:            /**
139:             * Determines if the passed-in Object is equivalent to this DefaultURLRewriter.
140:             * Since there is no member data for this class they will all be equal.
141:             *
142:             * @param object the Object to test for equality.
143:             * @return true if object is another instance of DefaultURLRewriter.
144:             */
145:
146:            public boolean equals(Object object) {
147:                if (object == this ) {
148:                    return true;
149:                }
150:
151:                if (object == null
152:                        || !object.getClass().equals(this .getClass())) {
153:                    return false;
154:                }
155:
156:                return true;
157:            }
158:
159:            /**
160:             * Returns a hash code value for the object.
161:             * Implemented in conjunction with equals() override.
162:             * Since there is no member data for this class we
163:             * always return the same value.
164:             *
165:             * @return a hash code value for this object.
166:             */
167:
168:            public int hashCode() {
169:                return 0;
170:            }
171:        }
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