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Diffstat (limited to 'mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java')
| -rw-r--r-- | mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java | 347 |
1 files changed, 0 insertions, 347 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java deleted file mode 100644 index cbf7c943d..000000000 --- a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/ByteArrayBuffer.java +++ /dev/null @@ -1,347 +0,0 @@ -/* - * ==================================================================== - * 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.annotation.NotThreadSafe; - -/** - * A resizable byte array. - * - * @since 4.0 - */ -@NotThreadSafe -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(final int capacity) { - super(); - Args.notNegative(capacity, "Buffer capacity"); - this.buffer = new byte[capacity]; - } - - private void expand(final int newlen) { - final 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, final int off, final 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; - } - final 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(final int b) { - final 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, final int off, final 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; - } - final int oldlen = this.len; - final 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, final int off, final 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() { - final 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(final 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(final int required) { - if (required <= 0) { - return; - } - final 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(final 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 from the index to start the search from. - * @param to 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(final byte b, final int from, final int to) { - int beginIndex = from; - if (beginIndex < 0) { - beginIndex = 0; - } - int endIndex = to; - 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(final byte b) { - return indexOf(b, 0, this.len); - } -} |