// Copyright (c) 2003-2012, Jodd Team (jodd.org). All Rights Reserved.
package jodd.io;
import jodd.util.buffer.FastCharBuffer;
import java.io.IOException;
import java.io.Writer;
/**
* Similar as {@link jodd.io.FastByteArrayOutputStream} but for {@link Writer}.
*/
public class FastCharArrayWriter extends Writer {
private final FastCharBuffer buffer;
/**
* Creates a new writer. The buffer capacity is
* initially 1024 bytes, though its size increases if necessary.
*/
public FastCharArrayWriter() {
this(1024);
}
/**
* Creates a new char array writer, with a buffer capacity of
* the specified size, in bytes.
*
* @param size the initial size.
* @throws IllegalArgumentException if size is negative.
*/
public FastCharArrayWriter(int size) {
buffer = new FastCharBuffer(size);
}
/**
* @see java.io.Writer#write(char[], int, int)
*/
@Override
public void write(char[] b, int off, int len) {
buffer.append(b, off, len);
}
/**
* Writes single byte.
*/
@Override
public void write(int b) {
buffer.append((char) b);
}
@Override
public void write(String s, int off, int len) {
write(s.toCharArray(), off, len);
}
/**
* @see java.io.CharArrayWriter#size()
*/
public int size() {
return buffer.size();
}
/**
* Closing a <code>FastCharArrayWriter</code> has no effect. The methods in
* this class can be called after the stream has been closed without
* generating an <code>IOException</code>.
*/
@Override
public void close() {
//nop
}
/**
* Flushing a <code>FastCharArrayWriter</code> has no effects.
*/
@Override
public void flush() {
//nop
}
/**
* @see java.io.CharArrayWriter#reset()
*/
public void reset() {
buffer.clear();
}
/**
* @see java.io.CharArrayWriter#writeTo(java.io.Writer)
*/
public void writeTo(Writer out) throws IOException {
int index = buffer.index();
for (int i = 0; i < index; i++) {
char[] buf = buffer.array(i);
out.write(buf);
}
out.write(buffer.array(index), 0, buffer.offset());
}
/**
* @see java.io.CharArrayWriter#toCharArray()
*/
public char[] toCharArray() {
return buffer.toArray();
}
/**
* @see java.io.CharArrayWriter#toString()
*/
@Override
public String toString() {
return new String(toCharArray());
}
}
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