/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jsp;
import com.caucho.vfs.FlushBuffer;
import javax.servlet.jsp.JspWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A buffered JSP writer encapsulating a Writer.
*/
public class JspPrintWriter extends PrintWriter implements FlushBuffer {
private static final Logger log
= Logger.getLogger(JspPrintWriter.class.getName());
private static final Writer _dummyWriter = new StringWriter();
private JspWriter _jspWriter;
/**
* Creates a new JspPrintWriter
*/
JspPrintWriter()
{
super(_dummyWriter);
}
/**
* Creates a new JspPrintWriter
*/
JspPrintWriter(JspWriter jspWriter)
{
super(jspWriter);
_jspWriter = jspWriter;
}
/**
* Initialize the JSP writer
*
* @param os the underlying stream
*/
void init(JspWriter jspWriter)
{
_jspWriter = jspWriter;
}
/**
* Writes a character array to the writer.
*
* @param buf the buffer to write.
* @param off the offset into the buffer
* @param len the number of characters to write
*/
final public void write(char []buf, int offset, int length)
{
try {
_jspWriter.write(buf, offset, length);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes a character to the output.
*
* @param buf the buffer to write.
*/
final public void write(int ch)
{
try {
_jspWriter.write(ch);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes a char buffer to the output.
*
* @param buf the buffer to write.
*/
final public void write(char []buf)
{
try {
_jspWriter.write(buf, 0, buf.length);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes a string to the output.
*/
final public void write(String s)
{
try {
_jspWriter.write(s, 0, s.length());
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes a subsection of a string to the output.
*/
final public void write(String s, int off, int len)
{
try {
_jspWriter.write(s, 0, s.length());
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes the newline character.
*/
final public void newLine()
{
try {
_jspWriter.newLine();
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a boolean.
*/
final public void print(boolean b)
{
try {
_jspWriter.print(b);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a character.
*/
final public void print(char ch)
{
try {
_jspWriter.write(ch);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints an integer.
*/
final public void print(int v)
{
try {
_jspWriter.print(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a long
*/
final public void print(long v)
{
try {
_jspWriter.print(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a float
*/
final public void print(float f)
{
try {
_jspWriter.print(f);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a double.
*/
final public void print(double d)
{
try {
_jspWriter.print(d);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a character array
*/
final public void print(char []s)
{
try {
_jspWriter.write(s, 0, s.length);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a string.
*/
final public void print(String s)
{
try {
_jspWriter.print(s);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints the value of the object.
*/
final public void print(Object v)
{
try {
_jspWriter.print(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints the newline.
*/
final public void println()
{
try {
_jspWriter.newLine();
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints the boolean followed by a newline.
*
* @param v the value to print
*/
final public void println(boolean v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a character followed by a newline.
*
* @param v the value to print
*/
final public void println(char v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints an integer followed by a newline.
*
* @param v the value to print
*/
final public void println(int v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a long followed by a newline.
*
* @param v the value to print
*/
final public void println(long v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a float followed by a newline.
*
* @param v the value to print
*/
final public void println(float v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Prints a double followed by a newline.
*
* @param v the value to print
*/
final public void println(double v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes a character array followed by a newline.
*/
final public void println(char []s)
{
try {
_jspWriter.println(s);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes a string followed by a newline.
*/
final public void println(String s)
{
try {
_jspWriter.println(s);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Writes an object followed by a newline.
*/
final public void println(Object v)
{
try {
_jspWriter.println(v);
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Flushes the buffer and the writer.
*/
public void flushBuffer()
{
try {
if (_jspWriter instanceof FlushBuffer)
((FlushBuffer) _jspWriter).flushBuffer();
else
_jspWriter.flush();
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
/**
* Flushes the buffer and the writer.
*/
public void flush()
{
try {
_jspWriter.flush();
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
final public void clear()
{
try {
_jspWriter.clear();
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
final public void close()
{
try {
_jspWriter.close();
} catch (IOException e) {
log.log(Level.FINE, e.toString(), e);
}
}
}