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

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

mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/CharArrayBuffer.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;
 import ch.boye.httpclientandroidlib.protocol.HTTP;
 /**
  * A resizable char array.
  *
  * @since 4.0
  */
 public final class CharArrayBuffer implements Serializable {
     private static final long serialVersionUID = -6208952725094867135L;
     private char[] buffer;
     private int len;
     /**
      * Creates an instance of {@link CharArrayBuffer} with the given initial
      * capacity.
      *
      * @param capacity the capacity
      */
     public CharArrayBuffer(int capacity) {
         super();
         if (capacity < 0) {
             throw new IllegalArgumentException("Buffer capacity may not be negative");
         }
         this.buffer = new char[capacity];
     }
     private void expand(int newlen) {
         char newbuffer[] = new char[Math.max(this.buffer.length << 1, newlen)];
         System.arraycopy(this.buffer, 0, newbuffer, 0, this.len);
         this.buffer = newbuffer;
     }
     /**
      * 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.
      *
      * @param   b        the chars to be appended.
      * @param   off      the index of the first char to append.
      * @param   len      the number of chars to append.
      * @throws IndexOutOfBoundsException if <code>off</code> is 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 newlen = this.len + len;
         if (newlen > this.buffer.length) {
             expand(newlen);
         }
         System.arraycopy(b, off, this.buffer, this.len, len);
         this.len = newlen;
     }
     /**
      * Appends chars of the given string to this buffer. The capacity of the
      * buffer is increased, if necessary, to accommodate all chars.
      *
      * @param str    the string.
      */
     public void append(String str) {
         if (str == null) {
             str = "null";
         }
         int strlen = str.length();
         int newlen = this.len + strlen;
         if (newlen > this.buffer.length) {
             expand(newlen);
         }
         str.getChars(0, strlen, this.buffer, this.len);
         this.len = newlen;
     }
     /**
      * Appends <code>len</code> chars to this buffer from the given source
      * buffer starting at index <code>off</code>. The capacity of the
      * destination buffer is increased, if necessary, to accommodate all
      * <code>len</code> chars.
      *
      * @param   b        the source buffer to be appended.
      * @param   off      the index of the first char to append.
      * @param   len      the number of chars to append.
      * @throws IndexOutOfBoundsException if <code>off</code> is 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);
     }
     /**
      * Appends all chars to this buffer from the given source buffer starting
      * at index <code>0</code>. The capacity of the destination buffer is
      * increased, if necessary, to accommodate all {@link #length()} chars.
      *
      * @param   b        the source buffer to be appended.
      */
     public void append(final CharArrayBuffer b) {
         if (b == null) {
             return;
         }
         append(b.buffer,0, b.len);
     }
     /**
      * Appends <code>ch</code> char to this buffer. The capacity of the buffer
      * is increased, if necessary, to accommodate the additional char.
      *
      * @param   ch        the char to be appended.
      */
     public void append(char ch) {
         int newlen = this.len + 1;
         if (newlen > this.buffer.length) {
             expand(newlen);
         }
         this.buffer[this.len] = ch;
         this.len = newlen;
     }
     /**
      * 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.
      * <p>
      * The bytes are converted to chars using simple cast.
      *
      * @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> is 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 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] = (char) (b[i1] & 0xff);
         }
         this.len = newlen;
     }
     /**
      * 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.
      * <p>
      * The bytes are converted to chars using simple cast.
      *
      * @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> is out of
      * range, <code>len</code> is negative, or
      * <code>off</code> + <code>len</code> is out of range.
      */
     public void append(final ByteArrayBuffer b, int off, int len) {
         if (b == null) {
             return;
         }
         append(b.buffer(), off, len);
     }
     /**
      * Appends chars of the textual representation of the given object to this
      * buffer. The capacity of the buffer is increased, if necessary, to
      * accommodate all chars.
      *
      * @param obj    the object.
      */
     public void append(final Object obj) {
         append(String.valueOf(obj));
     }
     /**
      * Clears content of the buffer. The underlying char array is not resized.
      */
     public void clear() {
         this.len = 0;
     }
     /**
      * Converts the content of this buffer to an array of chars.
      *
      * @return char array
      */
     public char[] toCharArray() {
         char[] b = new char[this.len];
         if (this.len > 0) {
             System.arraycopy(this.buffer, 0, b, 0, this.len);
         }
         return b;
     }
     /**
      * Returns the <code>char</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 char value.
      * @return     the char value at the specified index.
      * @throws     IndexOutOfBoundsException  if <code>index</code> is
      *             negative or greater than or equal to {@link #length()}.
      */
     public char charAt(int i) {
         return this.buffer[i];
     }
     /**
      * Returns reference to the underlying char array.
      *
      * @return the char array.
      */
     public char[] buffer() {
         return this.buffer;
     }
     /**
      * Returns the current capacity. The capacity is the amount of storage
      * available for newly appended chars, beyond which an allocation will
      * occur.
      *
      * @return  the current capacity
      */
     public int capacity() {
         return this.buffer.length;
     }
     /**
      * Returns the length of the buffer (char 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.
      */
     public void ensureCapacity(int required) {
         if (required <= 0) {
             return;
         }
         int available = this.buffer.length - this.len;
         if (required > available) {
             expand(this.len + required);
         }
     }
     /**
      * 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 character, starting the search at the specified
      * <code>beginIndex</code> and finishing at <code>endIndex</code>.
      * If no such character 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   ch          the char 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 character in the buffer
      *   within the given bounds, or <code>-1</code> if the character does
      *   not occur.
      */
     public int indexOf(int ch, 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] == ch) {
                 return i;
             }
         }
         return -1;
     }
     /**
      * Returns the index within this buffer of the first occurrence of the
      * specified character, starting the search at <code>0</code> and finishing
      * at {@link #length()}. If no such character occurs in this buffer within
      * those bounds, <code>-1</code> is returned.
      *
      * @param   ch          the char to search for.
      * @return  the index of the first occurrence of the character in the
      *   buffer, or <code>-1</code> if the character does not occur.
      */
     public int indexOf(int ch) {
         return indexOf(ch, 0, this.len);
     }
     /**
      * Returns a substring of this buffer. The substring begins at the specified
      * <code>beginIndex</code> and extends to the character at index
      * <code>endIndex - 1</code>.
      *
      * @param      beginIndex   the beginning index, inclusive.
      * @param      endIndex     the ending index, exclusive.
      * @return     the specified substring.
      * @exception  StringIndexOutOfBoundsException  if the
      *             <code>beginIndex</code> is negative, or
      *             <code>endIndex</code> is larger than the length of this
      *             buffer, or <code>beginIndex</code> is larger than
      *             <code>endIndex</code>.
      */
     public String substring(int beginIndex, int endIndex) {
         return new String(this.buffer, beginIndex, endIndex - beginIndex);
     }
     /**
      * Returns a substring of this buffer with leading and trailing whitespace
      * omitted. The substring begins with the first non-whitespace character
      * from <code>beginIndex</code> and extends to the last
      * non-whitespace character with the index lesser than
      * <code>endIndex</code>.
      *
      * @param      beginIndex   the beginning index, inclusive.
      * @param      endIndex     the ending index, exclusive.
      * @return     the specified substring.
      * @exception  IndexOutOfBoundsException  if the
      *             <code>beginIndex</code> is negative, or
      *             <code>endIndex</code> is larger than the length of this
      *             buffer, or <code>beginIndex</code> is larger than
      *             <code>endIndex</code>.
      */
     public String substringTrimmed(int beginIndex, int endIndex) {
         if (beginIndex < 0) {
             throw new IndexOutOfBoundsException("Negative beginIndex: "+beginIndex);
         }
         if (endIndex > this.len) {
             throw new IndexOutOfBoundsException("endIndex: "+endIndex+" > length: "+this.len);
         }
         if (beginIndex > endIndex) {
             throw new IndexOutOfBoundsException("beginIndex: "+beginIndex+" > endIndex: "+endIndex);
         }
         while (beginIndex < endIndex && HTTP.isWhitespace(this.buffer[beginIndex])) {
             beginIndex++;
         }
         while (endIndex > beginIndex && HTTP.isWhitespace(this.buffer[endIndex - 1])) {
             endIndex--;
         }
         return new String(this.buffer, beginIndex, endIndex - beginIndex);
     }
     public String toString() {
         return new String(this.buffer, 0, this.len);
     }
 }

The Tor Browser / annotate

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

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