The Tor Browser: mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java@fc2d59ddac77 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java@fc2d59ddac77 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
  * ====================================================================
  * 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.util;
 import java.io.Serializable;
 /**
  * A resizable byte array.
  *
  * @since 4.0
  */
 public final class ByteArrayBuffer implements Serializable {
     private static final long serialVersionUID = 4359112959524048036L;
     private byte[] buffer;
     private int len;
     /**
      * Creates an instance of {@link ByteArrayBuffer} with the given initial
      * capacity.
      *
      * @param capacity the capacity
      */
     public ByteArrayBuffer(int capacity) {
         super();
         if (capacity < 0) {
             throw new IllegalArgumentException("Buffer capacity may not be negative");
         }
         this.buffer = new byte[capacity];
     }
     private void expand(int newlen) {
         byte newbuffer[] = new byte[Math.max(this.buffer.length << 1, newlen)];
         System.arraycopy(this.buffer, 0, newbuffer, 0, this.len);
         this.buffer = newbuffer;
     }
     /**
      * Appends <code>len</code> bytes to this buffer from the given source
      * array starting at index <code>off</code>. The capacity of the buffer
      * is increased, if necessary, to accommodate all <code>len</code> bytes.
      *
      * @param   b        the bytes to be appended.
      * @param   off      the index of the first byte to append.
      * @param   len      the number of bytes to append.
      * @throws IndexOutOfBoundsException if <code>off</code> if out of
      * range, <code>len</code> is negative, or
      * <code>off</code> + <code>len</code> is out of range.
      */
     public void append(final byte[] b, int off, int len) {
         if (b == null) {
             return;
         }
         if ((off < 0) || (off > b.length) || (len < 0) ||
                 ((off + len) < 0) || ((off + len) > b.length)) {
             throw new IndexOutOfBoundsException("off: "+off+" len: "+len+" b.length: "+b.length);
         }
         if (len == 0) {
             return;
         }
         int newlen = this.len + len;
         if (newlen > this.buffer.length) {
             expand(newlen);
         }
         System.arraycopy(b, off, this.buffer, this.len, len);
         this.len = newlen;
     }
     /**
      * Appends <code>b</code> byte to this buffer. The capacity of the buffer
      * is increased, if necessary, to accommodate the additional byte.
      *
      * @param   b        the byte to be appended.
      */
     public void append(int b) {
         int newlen = this.len + 1;
         if (newlen > this.buffer.length) {
             expand(newlen);
         }
         this.buffer[this.len] = (byte)b;
         this.len = newlen;
     }
     /**
      * Appends <code>len</code> chars to this buffer from the given source
      * array starting at index <code>off</code>. The capacity of the buffer
      * is increased if necessary to accommodate all <code>len</code> chars.
      * <p>
      * The chars are converted to bytes using simple cast.
      *
      * @param   b        the chars to be appended.
      * @param   off      the index of the first char to append.
      * @param   len      the number of bytes to append.
      * @throws IndexOutOfBoundsException if <code>off</code> if out of
      * range, <code>len</code> is negative, or
      * <code>off</code> + <code>len</code> is out of range.
      */
     public void append(final char[] b, int off, int len) {
         if (b == null) {
             return;
         }
         if ((off < 0) || (off > b.length) || (len < 0) ||
                 ((off + len) < 0) || ((off + len) > b.length)) {
             throw new IndexOutOfBoundsException("off: "+off+" len: "+len+" b.length: "+b.length);
         }
         if (len == 0) {
             return;
         }
         int oldlen = this.len;
         int newlen = oldlen + len;
         if (newlen > this.buffer.length) {
             expand(newlen);
         }
         for (int i1 = off, i2 = oldlen; i2 < newlen; i1++, i2++) {
             this.buffer[i2] = (byte) b[i1];
         }
         this.len = newlen;
     }
     /**
      * Appends <code>len</code> chars to this buffer from the given source
      * char array buffer starting at index <code>off</code>. The capacity
      * of the buffer is increased if necessary to accommodate all
      * <code>len</code> chars.
      * <p>
      * The chars are converted to bytes using simple cast.
      *
      * @param   b        the chars to be appended.
      * @param   off      the index of the first char to append.
      * @param   len      the number of bytes to append.
      * @throws IndexOutOfBoundsException if <code>off</code> if out of
      * range, <code>len</code> is negative, or
      * <code>off</code> + <code>len</code> is out of range.
      */
     public void append(final CharArrayBuffer b, int off, int len) {
         if (b == null) {
             return;
         }
         append(b.buffer(), off, len);
     }
     /**
      * Clears content of the buffer. The underlying byte array is not resized.
      */
     public void clear() {
         this.len = 0;
     }
     /**
      * Converts the content of this buffer to an array of bytes.
      *
      * @return byte array
      */
     public byte[] toByteArray() {
         byte[] b = new byte[this.len];
         if (this.len > 0) {
             System.arraycopy(this.buffer, 0, b, 0, this.len);
         }
         return b;
     }
     /**
      * Returns the <code>byte</code> value in this buffer at the specified
      * index. The index argument must be greater than or equal to
      * <code>0</code>, and less than the length of this buffer.
      *
      * @param      i   the index of the desired byte value.
      * @return     the byte value at the specified index.
      * @throws     IndexOutOfBoundsException  if <code>index</code> is
      *             negative or greater than or equal to {@link #length()}.
      */
     public int byteAt(int i) {
         return this.buffer[i];
     }
     /**
      * Returns the current capacity. The capacity is the amount of storage
      * available for newly appended bytes, beyond which an allocation
      * will occur.
      *
      * @return  the current capacity
      */
     public int capacity() {
         return this.buffer.length;
     }
     /**
      * Returns the length of the buffer (byte count).
      *
      * @return  the length of the buffer
      */
     public int length() {
         return this.len;
     }
     /**
      * Ensures that the capacity is at least equal to the specified minimum.
      * If the current capacity is less than the argument, then a new internal
      * array is allocated with greater capacity. If the <code>required</code>
      * argument is non-positive, this method takes no action.
      *
      * @param   required   the minimum required capacity.
      *
      * @since 4.1
      */
     public void ensureCapacity(int required) {
         if (required <= 0) {
             return;
         }
         int available = this.buffer.length - this.len;
         if (required > available) {
             expand(this.len + required);
         }
     }
     /**
      * Returns reference to the underlying byte array.
      *
      * @return the byte array.
      */
     public byte[] buffer() {
         return this.buffer;
     }
     /**
      * Sets the length of the buffer. The new length value is expected to be
      * less than the current capacity and greater than or equal to
      * <code>0</code>.
      *
      * @param      len   the new length
      * @throws     IndexOutOfBoundsException  if the
      *               <code>len</code> argument is greater than the current
      *               capacity of the buffer or less than <code>0</code>.
      */
     public void setLength(int len) {
         if (len < 0 || len > this.buffer.length) {
             throw new IndexOutOfBoundsException("len: "+len+" < 0 or > buffer len: "+this.buffer.length);
         }
         this.len = len;
     }
     /**
      * Returns <code>true</code> if this buffer is empty, that is, its
      * {@link #length()} is equal to <code>0</code>.
      * @return <code>true</code> if this buffer is empty, <code>false</code>
      *   otherwise.
      */
     public boolean isEmpty() {
         return this.len == 0;
     }
     /**
      * Returns <code>true</code> if this buffer is full, that is, its
      * {@link #length()} is equal to its {@link #capacity()}.
      * @return <code>true</code> if this buffer is full, <code>false</code>
      *   otherwise.
      */
     public boolean isFull() {
         return this.len == this.buffer.length;
     }
     /**
      * Returns the index within this buffer of the first occurrence of the
      * specified byte, starting the search at the specified
      * <code>beginIndex</code> and finishing at <code>endIndex</code>.
      * If no such byte occurs in this buffer within the specified bounds,
      * <code>-1</code> is returned.
      * <p>
      * There is no restriction on the value of <code>beginIndex</code> and
      * <code>endIndex</code>. If <code>beginIndex</code> is negative,
      * it has the same effect as if it were zero. If <code>endIndex</code> is
      * greater than {@link #length()}, it has the same effect as if it were
      * {@link #length()}. If the <code>beginIndex</code> is greater than
      * the <code>endIndex</code>, <code>-1</code> is returned.
      *
      * @param   b            the byte to search for.
      * @param   beginIndex   the index to start the search from.
      * @param   endIndex     the index to finish the search at.
      * @return  the index of the first occurrence of the byte in the buffer
      *   within the given bounds, or <code>-1</code> if the byte does
      *   not occur.
      *
      * @since 4.1
      */
     public int indexOf(byte b, int beginIndex, int endIndex) {
         if (beginIndex < 0) {
             beginIndex = 0;
         }
         if (endIndex > this.len) {
             endIndex = this.len;
         }
         if (beginIndex > endIndex) {
             return -1;
         }
         for (int i = beginIndex; i < endIndex; i++) {
             if (this.buffer[i] == b) {
                 return i;
             }
         }
         return -1;
     }
     /**
      * Returns the index within this buffer of the first occurrence of the
      * specified byte, starting the search at <code>0</code> and finishing
      * at {@link #length()}. If no such byte occurs in this buffer within
      * those bounds, <code>-1</code> is returned.
      *
      * @param   b   the byte to search for.
      * @return  the index of the first occurrence of the byte in the
      *   buffer, or <code>-1</code> if the byte does not occur.
      *
      * @since 4.1
      */
     public int indexOf(byte b) {
         return indexOf(b, 0, this.len);
     }
 }

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mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java@fc2d59ddac77 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java