Java tutorial
/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.http.impl.conn; import java.io.IOException; import org.apache.http.Consts; import org.apache.http.annotation.Immutable; import org.apache.http.io.EofSensor; import org.apache.http.io.HttpTransportMetrics; import org.apache.http.io.SessionInputBuffer; import org.apache.http.util.CharArrayBuffer; /** * Logs all data read to the wire LOG. * * @since 4.0 * * @deprecated (4.3) no longer used. */ @Immutable @Deprecated public class LoggingSessionInputBuffer implements SessionInputBuffer, EofSensor { /** Original session input buffer. */ private final SessionInputBuffer in; private final EofSensor eofSensor; /** The wire log to use for writing. */ private final Wire wire; private final String charset; /** * Create an instance that wraps the specified session input buffer. * @param in The session input buffer. * @param wire The wire log to use. * @param charset protocol charset, <code>ASCII</code> if <code>null</code> */ public LoggingSessionInputBuffer(final SessionInputBuffer in, final Wire wire, final String charset) { super(); this.in = in; this.eofSensor = in instanceof EofSensor ? (EofSensor) in : null; this.wire = wire; this.charset = charset != null ? charset : Consts.ASCII.name(); } public LoggingSessionInputBuffer(final SessionInputBuffer in, final Wire wire) { this(in, wire, null); } public boolean isDataAvailable(final int timeout) throws IOException { return this.in.isDataAvailable(timeout); } public int read(final byte[] b, final int off, final int len) throws IOException { final int l = this.in.read(b, off, len); if (this.wire.enabled() && l > 0) { this.wire.input(b, off, l); } return l; } public int read() throws IOException { final int l = this.in.read(); if (this.wire.enabled() && l != -1) { this.wire.input(l); } return l; } public int read(final byte[] b) throws IOException { final int l = this.in.read(b); if (this.wire.enabled() && l > 0) { this.wire.input(b, 0, l); } return l; } public String readLine() throws IOException { final String s = this.in.readLine(); if (this.wire.enabled() && s != null) { final String tmp = s + "\r\n"; this.wire.input(tmp.getBytes(this.charset)); } return s; } public int readLine(final CharArrayBuffer buffer) throws IOException { final int l = this.in.readLine(buffer); if (this.wire.enabled() && l >= 0) { final int pos = buffer.length() - l; final String s = new String(buffer.buffer(), pos, l); final String tmp = s + "\r\n"; this.wire.input(tmp.getBytes(this.charset)); } return l; } public HttpTransportMetrics getMetrics() { return this.in.getMetrics(); } public boolean isEof() { if (this.eofSensor != null) { return this.eofSensor.isEof(); } else { return false; } } }