Source Code Cross Referenced for HmuxStreamWrapper.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » server » hmux » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.server.hmux 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *
023:         *   Free Software Foundation, Inc.
024:         *   59 Temple Place, Suite 330
025:         *   Boston, MA 02111-1307  USA
026:         *
027:         * @author Scott Ferguson
028:         */
029:
030:        package com.caucho.server.hmux;
031:
032:        import com.caucho.log.Log;
033:        import com.caucho.vfs.StreamImpl;
034:
035:        import java.io.IOException;
036:        import java.net.SocketException;
037:        import java.util.Iterator;
038:        import java.util.logging.Logger;
039:
040:        /**
041:         * Facade to HmuxStream to properly handle the close.
042:         */
043:        class HmuxStreamWrapper extends StreamImpl {
044:            private static final Logger log = Log.open(HmuxStream.class);
045:
046:            private HmuxStream _stream;
047:
048:            /**
049:             * Create a new HMUX stream.
050:             */
051:            HmuxStreamWrapper(HmuxStream stream) throws IOException {
052:                _stream = stream;
053:            }
054:
055:            /**
056:             * Set if this should be an SSL connection.
057:             */
058:            public void setSSL(boolean isSSL) {
059:                _stream.setSSL(isSSL);
060:            }
061:
062:            /**
063:             * Set if this should be an SSL connection.
064:             */
065:            public boolean isSSL() {
066:                return _stream.isSSL();
067:            }
068:
069:            /**
070:             * Sets the method
071:             */
072:            public void setMethod(String method) {
073:                _stream.setMethod(method);
074:            }
075:
076:            /**
077:             * Sets true if we're only interested in the head.
078:             */
079:            public void setHead(boolean isHead) {
080:                _stream.setHead(isHead);
081:            }
082:
083:            /**
084:             * Returns the stream's host.
085:             */
086:            public String getHost() {
087:                return _stream.getHost();
088:            }
089:
090:            /**
091:             * Returns the stream's port.
092:             */
093:            public int getPort() {
094:                return _stream.getPort();
095:            }
096:
097:            /**
098:             * Returns a header from the response returned from the HMUX server.
099:             *
100:             * @param name name of the header
101:             * @return the header value.
102:             */
103:            public Object getAttribute(String name) throws IOException {
104:                if (_stream != null)
105:                    return _stream.getAttribute(name);
106:                else
107:                    return null;
108:            }
109:
110:            /**
111:             * Returns an iterator of the returned header names.
112:             */
113:            public Iterator getAttributeNames() throws IOException {
114:                if (_stream != null)
115:                    return _stream.getAttributeNames();
116:                else
117:                    return null;
118:            }
119:
120:            /**
121:             * Sets a header for the request.
122:             */
123:            public void setAttribute(String name, Object value) {
124:                if (_stream != null)
125:                    _stream.setAttribute(name, value);
126:            }
127:
128:            /**
129:             * Remove a header for the request.
130:             */
131:            public void removeAttribute(String name) {
132:                if (_stream != null)
133:                    _stream.removeAttribute(name);
134:            }
135:
136:            /**
137:             * Sets the timeout.
138:             */
139:            public void setSocketTimeout(long timeout) throws SocketException {
140:                if (_stream != null)
141:                    _stream.setSocketTimeout(timeout);
142:            }
143:
144:            /**
145:             * The stream is always writable (?)
146:             */
147:            public boolean canWrite() {
148:                if (_stream != null)
149:                    return _stream.canWrite();
150:                else
151:                    return false;
152:            }
153:
154:            /**
155:             * Writes a buffer to the underlying stream.
156:             *
157:             * @param buffer the byte array to write.
158:             * @param offset the offset into the byte array.
159:             * @param length the number of bytes to write.
160:             * @param isEnd true when the write is flushing a close.
161:             */
162:            public void write(byte[] buf, int offset, int length, boolean isEnd)
163:                    throws IOException {
164:                if (_stream != null)
165:                    _stream.write(buf, offset, length, isEnd);
166:            }
167:
168:            /**
169:             * The stream is readable.
170:             */
171:            public boolean canRead() {
172:                if (_stream != null)
173:                    return _stream.canRead();
174:                else
175:                    return false;
176:            }
177:
178:            /**
179:             * Read data from the connection.  If the request hasn't yet been sent
180:             * to the server, send it.
181:             */
182:            public int read(byte[] buf, int offset, int length)
183:                    throws IOException {
184:                if (_stream != null)
185:                    return _stream.read(buf, offset, length);
186:                else
187:                    return -1;
188:            }
189:
190:            /**
191:             * Returns the bytes still available.
192:             */
193:            public int getAvailable() throws IOException {
194:                if (_stream != null)
195:                    return _stream.getAvailable();
196:                else
197:                    return -1;
198:            }
199:
200:            /**
201:             * Close the connection.
202:             */
203:            public void close() throws IOException {
204:                HmuxStream stream = _stream;
205:                _stream = null;
206:
207:                if (stream != null)
208:                    stream.close();
209:            }
210:        }
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