/**************************************************************************
* Copyright (c) 2001 by Punch Telematix. All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions *
* are met: *
* 1. Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* 2. 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. *
* 3. Neither the name of Punch Telematix nor the names of *
* other contributors may be used to endorse or promote products *
* derived from this software without specific prior written permission.*
* *
* THIS SOFTWARE IS PROVIDED ``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 PUNCH TELEMATIX OR OTHER 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. *
**************************************************************************/
package java.io;
public abstract class Writer {
protected Object lock;
protected Writer(){
lock = this;
}
protected Writer(Object lock){
if (lock == null){
throw new NullPointerException("lock should be non null");
}
this.lock = lock;
}
public abstract void close() throws IOException;
public abstract void flush() throws IOException;
/**
** Note: an implementation of this method should use the 'lock' object
** to synchronize with other methods ...
*/
public abstract void write(char[] cbuf, int off, int len) throws IOException;
public void write(char[] buf) throws IOException {
write(buf, 0, buf.length);
}
public void write(int c) throws IOException {
char[] buf = new char[1];
buf[0] = (char) c;
write(buf,0,1);
}
public void write(String string) throws IOException {
write(string, 0, string.length());
}
public void write(String string, int off, int len) throws IOException {
if (len < 0) {
throw new IndexOutOfBoundsException();
}
char[] buf = new char[len];
string.getChars(off,off+len, buf, 0);
write(buf, 0, len);
}
}