1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/conn/LoggingSessionInputBuffer.java $ 3 * $Revision: 674186 $ 4 * $Date: 2008-07-05 05:18:54 -0700 (Sat, 05 Jul 2008) $ 5 * 6 * ==================================================================== 7 * 8 * Licensed to the Apache Software Foundation (ASF) under one or more 9 * contributor license agreements. See the NOTICE file distributed with 10 * this work for additional information regarding copyright ownership. 11 * The ASF licenses this file to You under the Apache License, Version 2.0 12 * (the "License"); you may not use this file except in compliance with 13 * the License. You may obtain a copy of the License at 14 * 15 * http://www.apache.org/licenses/LICENSE-2.0 16 * 17 * Unless required by applicable law or agreed to in writing, software 18 * distributed under the License is distributed on an "AS IS" BASIS, 19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 20 * See the License for the specific language governing permissions and 21 * limitations under the License. 22 * ==================================================================== 23 * 24 * This software consists of voluntary contributions made by many 25 * individuals on behalf of the Apache Software Foundation. For more 26 * information on the Apache Software Foundation, please see 27 * <http://www.apache.org/>. 28 * 29 */ 30 31 package org.apache.http.impl.conn; 32 33 import java.io.IOException; 34 35 import org.apache.http.io.HttpTransportMetrics; 36 import org.apache.http.io.SessionInputBuffer; 37 import org.apache.http.util.CharArrayBuffer; 38 39 /** 40 * Logs all data read to the wire LOG. 41 * 42 * @author Ortwin Glueck 43 * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a> 44 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 45 * 46 * @since 4.0 47 */ 48 public class LoggingSessionInputBuffer implements SessionInputBuffer { 49 50 /** Original session input buffer. */ 51 private final SessionInputBuffer in; 52 53 /** The wire log to use for writing. */ 54 private final Wire wire; 55 56 /** 57 * Create an instance that wraps the specified session input buffer. 58 * @param in The session input buffer. 59 * @param wire The wire log to use. 60 */ LoggingSessionInputBuffer(final SessionInputBuffer in, final Wire wire)61 public LoggingSessionInputBuffer(final SessionInputBuffer in, final Wire wire) { 62 super(); 63 this.in = in; 64 this.wire = wire; 65 } 66 isDataAvailable(int timeout)67 public boolean isDataAvailable(int timeout) throws IOException { 68 return this.in.isDataAvailable(timeout); 69 } 70 read(byte[] b, int off, int len)71 public int read(byte[] b, int off, int len) throws IOException { 72 int l = this.in.read(b, off, len); 73 if (this.wire.enabled() && l > 0) { 74 this.wire.input(b, off, l); 75 } 76 return l; 77 } 78 read()79 public int read() throws IOException { 80 int l = this.in.read(); 81 if (this.wire.enabled() && l > 0) { 82 this.wire.input(l); 83 } 84 return l; 85 } 86 read(byte[] b)87 public int read(byte[] b) throws IOException { 88 int l = this.in.read(b); 89 if (this.wire.enabled() && l > 0) { 90 this.wire.input(b, 0, l); 91 } 92 return l; 93 } 94 readLine()95 public String readLine() throws IOException { 96 String s = this.in.readLine(); 97 if (this.wire.enabled() && s != null) { 98 this.wire.input(s + "[EOL]"); 99 } 100 return s; 101 } 102 readLine(final CharArrayBuffer buffer)103 public int readLine(final CharArrayBuffer buffer) throws IOException { 104 int l = this.in.readLine(buffer); 105 if (this.wire.enabled() && l > 0) { 106 int pos = buffer.length() - l; 107 String s = new String(buffer.buffer(), pos, l); 108 this.wire.input(s + "[EOL]"); 109 } 110 return l; 111 } 112 getMetrics()113 public HttpTransportMetrics getMetrics() { 114 return this.in.getMetrics(); 115 } 116 117 } 118