1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/SocketInputBuffer.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,138 @@
1.4 +/*
1.5 + * ====================================================================
1.6 + * Licensed to the Apache Software Foundation (ASF) under one
1.7 + * or more contributor license agreements. See the NOTICE file
1.8 + * distributed with this work for additional information
1.9 + * regarding copyright ownership. The ASF licenses this file
1.10 + * to you under the Apache License, Version 2.0 (the
1.11 + * "License"); you may not use this file except in compliance
1.12 + * with the License. You may obtain a copy of the License at
1.13 + *
1.14 + * http://www.apache.org/licenses/LICENSE-2.0
1.15 + *
1.16 + * Unless required by applicable law or agreed to in writing,
1.17 + * software distributed under the License is distributed on an
1.18 + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
1.19 + * KIND, either express or implied. See the License for the
1.20 + * specific language governing permissions and limitations
1.21 + * under the License.
1.22 + * ====================================================================
1.23 + *
1.24 + * This software consists of voluntary contributions made by many
1.25 + * individuals on behalf of the Apache Software Foundation. For more
1.26 + * information on the Apache Software Foundation, please see
1.27 + * <http://www.apache.org/>.
1.28 + *
1.29 + */
1.30 +
1.31 +package ch.boye.httpclientandroidlib.impl.io;
1.32 +
1.33 +import java.io.IOException;
1.34 +import java.io.InterruptedIOException;
1.35 +import java.net.Socket;
1.36 +
1.37 +import ch.boye.httpclientandroidlib.io.EofSensor;
1.38 +import ch.boye.httpclientandroidlib.io.SessionInputBuffer;
1.39 +import ch.boye.httpclientandroidlib.params.HttpParams;
1.40 +
1.41 +/**
1.42 + * {@link SessionInputBuffer} implementation bound to a {@link Socket}.
1.43 + * <p>
1.44 + * The following parameters can be used to customize the behavior of this
1.45 + * class:
1.46 + * <ul>
1.47 + * <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li>
1.48 + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li>
1.49 + * </ul>
1.50 + *
1.51 + * @since 4.0
1.52 + */
1.53 +public class SocketInputBuffer extends AbstractSessionInputBuffer implements EofSensor {
1.54 +
1.55 + static private final Class SOCKET_TIMEOUT_CLASS = SocketTimeoutExceptionClass();
1.56 +
1.57 + /**
1.58 + * Returns <code>SocketTimeoutExceptionClass<code> or <code>null</code> if the class
1.59 + * does not exist.
1.60 + *
1.61 + * @return <code>SocketTimeoutExceptionClass<code>, or <code>null</code> if unavailable.
1.62 + */
1.63 + static private Class SocketTimeoutExceptionClass() {
1.64 + try {
1.65 + return Class.forName("java.net.SocketTimeoutException");
1.66 + } catch (ClassNotFoundException e) {
1.67 + return null;
1.68 + }
1.69 + }
1.70 +
1.71 + private static boolean isSocketTimeoutException(final InterruptedIOException e) {
1.72 + if (SOCKET_TIMEOUT_CLASS != null) {
1.73 + return SOCKET_TIMEOUT_CLASS.isInstance(e);
1.74 + } else {
1.75 + return true;
1.76 + }
1.77 + }
1.78 +
1.79 + private final Socket socket;
1.80 +
1.81 + private boolean eof;
1.82 +
1.83 + /**
1.84 + * Creates an instance of this class.
1.85 + *
1.86 + * @param socket the socket to read data from.
1.87 + * @param buffersize the size of the internal buffer. If this number is less
1.88 + * than <code>0</code> it is set to the value of
1.89 + * {@link Socket#getReceiveBufferSize()}. If resultant number is less
1.90 + * than <code>1024</code> it is set to <code>1024</code>.
1.91 + * @param params HTTP parameters.
1.92 + */
1.93 + public SocketInputBuffer(
1.94 + final Socket socket,
1.95 + int buffersize,
1.96 + final HttpParams params) throws IOException {
1.97 + super();
1.98 + if (socket == null) {
1.99 + throw new IllegalArgumentException("Socket may not be null");
1.100 + }
1.101 + this.socket = socket;
1.102 + this.eof = false;
1.103 + if (buffersize < 0) {
1.104 + buffersize = socket.getReceiveBufferSize();
1.105 + }
1.106 + if (buffersize < 1024) {
1.107 + buffersize = 1024;
1.108 + }
1.109 + init(socket.getInputStream(), buffersize, params);
1.110 + }
1.111 +
1.112 + protected int fillBuffer() throws IOException {
1.113 + int i = super.fillBuffer();
1.114 + this.eof = i == -1;
1.115 + return i;
1.116 + }
1.117 +
1.118 + public boolean isDataAvailable(int timeout) throws IOException {
1.119 + boolean result = hasBufferedData();
1.120 + if (!result) {
1.121 + int oldtimeout = this.socket.getSoTimeout();
1.122 + try {
1.123 + this.socket.setSoTimeout(timeout);
1.124 + fillBuffer();
1.125 + result = hasBufferedData();
1.126 + } catch (InterruptedIOException e) {
1.127 + if (!isSocketTimeoutException(e)) {
1.128 + throw e;
1.129 + }
1.130 + } finally {
1.131 + socket.setSoTimeout(oldtimeout);
1.132 + }
1.133 + }
1.134 + return result;
1.135 + }
1.136 +
1.137 + public boolean isEof() {
1.138 + return this.eof;
1.139 + }
1.140 +
1.141 +}
