The Tor Browser: comparison mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/AbstractSessionOutputBuffer.java

--1:000000000000
+:ac587feaa396
+/*
+* ====================================================================
+* 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 ch.boye.httpclientandroidlib.impl.io;
+import java.io.IOException;
+import java.io.OutputStream;
+import ch.boye.httpclientandroidlib.io.BufferInfo;
+import ch.boye.httpclientandroidlib.io.SessionOutputBuffer;
+import ch.boye.httpclientandroidlib.io.HttpTransportMetrics;
+import ch.boye.httpclientandroidlib.params.CoreConnectionPNames;
+import ch.boye.httpclientandroidlib.params.HttpParams;
+import ch.boye.httpclientandroidlib.params.HttpProtocolParams;
+import ch.boye.httpclientandroidlib.protocol.HTTP;
+import ch.boye.httpclientandroidlib.util.ByteArrayBuffer;
+import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
+/**
+* Abstract base class for session output buffers that stream data to
+* an arbitrary {@link OutputStream}. This class buffers small chunks of
+* output data in an internal byte array for optimal output performance.
+* <p>
+* {@link #writeLine(CharArrayBuffer)} and {@link #writeLine(String)} methods
+* of this class use CR-LF as a line delimiter.
+* <p>
+* The following parameters can be used to customize the behavior of this
+* class:
+* <ul>
+*  <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li>
+*  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MIN_CHUNK_LIMIT}</li>
+* </ul>
+* <p>
+*
+* @since 4.0
+*/
+public abstract class AbstractSessionOutputBuffer implements SessionOutputBuffer, BufferInfo {
+private static final byte[] CRLF = new byte[] {HTTP.CR, HTTP.LF};
+private OutputStream outstream;
+private ByteArrayBuffer buffer;
+private String charset = HTTP.US_ASCII;
+private boolean ascii = true;
+private int minChunkLimit = 512;
+private HttpTransportMetricsImpl metrics;
+/**
+* Initializes this session output buffer.
+*
+* @param outstream the destination output stream.
+* @param buffersize the size of the internal buffer.
+* @param params HTTP parameters.
+*/
+protected void init(final OutputStream outstream, int buffersize, final HttpParams params) {
+if (outstream == null) {
+throw new IllegalArgumentException("Input stream may not be null");
+}
+if (buffersize <= 0) {
+throw new IllegalArgumentException("Buffer size may not be negative or zero");
+}
+if (params == null) {
+throw new IllegalArgumentException("HTTP parameters may not be null");
+}
+this.outstream = outstream;
+this.buffer = new ByteArrayBuffer(buffersize);
+this.charset = HttpProtocolParams.getHttpElementCharset(params);
+this.ascii = this.charset.equalsIgnoreCase(HTTP.US_ASCII)
+|| this.charset.equalsIgnoreCase(HTTP.ASCII);
+this.minChunkLimit = params.getIntParameter(CoreConnectionPNames.MIN_CHUNK_LIMIT, 512);
+this.metrics = createTransportMetrics();
+}
+/**
+* @since 4.1
+*/
+protected HttpTransportMetricsImpl createTransportMetrics() {
+return new HttpTransportMetricsImpl();
+}
+/**
+* @since 4.`1
+*/
+public int capacity() {
+return this.buffer.capacity();
+}
+/**
+* @since 4.1
+*/
+public int length() {
+return this.buffer.length();
+}
+/**
+* @since 4.1
+*/
+public int available() {
+return capacity() - length();
+}
+protected void flushBuffer() throws IOException {
+int len = this.buffer.length();
+if (len > 0) {
+this.outstream.write(this.buffer.buffer(), 0, len);
+this.buffer.clear();
+this.metrics.incrementBytesTransferred(len);
+}
+}
+public void flush() throws IOException {
+flushBuffer();
+this.outstream.flush();
+}
+public void write(final byte[] b, int off, int len) throws IOException {
+if (b == null) {
+return;
+}
+// Do not want to buffer large-ish chunks
+// if the byte array is larger then MIN_CHUNK_LIMIT
+// write it directly to the output stream
+if (len > this.minChunkLimit || len > this.buffer.capacity()) {
+// flush the buffer
+flushBuffer();
+// write directly to the out stream
+this.outstream.write(b, off, len);
+this.metrics.incrementBytesTransferred(len);
+} else {
+// Do not let the buffer grow unnecessarily
+int freecapacity = this.buffer.capacity() - this.buffer.length();
+if (len > freecapacity) {
+// flush the buffer
+flushBuffer();
+}
+// buffer
+this.buffer.append(b, off, len);
+}
+}
+public void write(final byte[] b) throws IOException {
+if (b == null) {
+return;
+}
+write(b, 0, b.length);
+}
+public void write(int b) throws IOException {
+if (this.buffer.isFull()) {
+flushBuffer();
+}
+this.buffer.append(b);
+}
+/**
+* Writes characters from the specified string followed by a line delimiter
+* to this session buffer.
+* <p>
+* This method uses CR-LF as a line delimiter.
+*
+* @param      s   the line.
+* @exception  IOException  if an I/O error occurs.
+*/
+public void writeLine(final String s) throws IOException {
+if (s == null) {
+return;
+}
+if (s.length() > 0) {
+write(s.getBytes(this.charset));
+}
+write(CRLF);
+}
+/**
+* Writes characters from the specified char array followed by a line
+* delimiter to this session buffer.
+* <p>
+* This method uses CR-LF as a line delimiter.
+*
+* @param      s the buffer containing chars of the line.
+* @exception  IOException  if an I/O error occurs.
+*/
+public void writeLine(final CharArrayBuffer s) throws IOException {
+if (s == null) {
+return;
+}
+if (this.ascii) {
+int off = 0;
+int remaining = s.length();
+while (remaining > 0) {
+int chunk = this.buffer.capacity() - this.buffer.length();
+chunk = Math.min(chunk, remaining);
+if (chunk > 0) {
+this.buffer.append(s, off, chunk);
+}
+if (this.buffer.isFull()) {
+flushBuffer();
+}
+off += chunk;
+remaining -= chunk;
+}
+} else {
+// This is VERY memory inefficient, BUT since non-ASCII charsets are
+// NOT meant to be used anyway, there's no point optimizing it
+byte[] tmp = s.toString().getBytes(this.charset);
+write(tmp);
+}
+write(CRLF);
+}
+public HttpTransportMetrics getMetrics() {
+return this.metrics;
+}
+}

The Tor Browser / file comparison

comparison: mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/AbstractSessionOutputBuffer.java

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/AbstractSessionOutputBuffer.java