Mega Code Archive
A writer for char strings
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/* Copyright (c) 2001-2009, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* A writer for char strings.
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 1.9.0
* @since 1.9.0
*/
public class CharArrayWriter {
protected char[] buffer;
protected int count;
public CharArrayWriter(char[] buffer) {
this.buffer = buffer;
}
public void write(int c) {
if (count == buffer.length) {
ensureSize(count + 1);
}
buffer[count++] = (char) c;
}
void ensureSize(int size) {
if (size <= buffer.length) {
return;
}
int newSize = buffer.length;
while (newSize < size) {
newSize *= 2;
}
char[] newBuffer = new char[newSize];
System.arraycopy(buffer, 0, newBuffer, 0, count);
buffer = newBuffer;
}
public void write(String str, int off, int len) {
ensureSize(count + len);
str.getChars(off, off + len, buffer, count);
count += len;
}
public void reset() {
count = 0;
}
public void reset(char[] buffer) {
count = 0;
this.buffer = buffer;
}
public char[] toCharArray() {
char[] newBuffer = new char[count];
System.arraycopy(buffer, 0, newBuffer, 0, count);
return (char[]) newBuffer;
}
public int size() {
return count;
}
/**
* Converts input data to a string.
*
* @return the string.
*/
public String toString() {
return new String(buffer, 0, count);
}
}
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