org.ajax4jsf.xml.serializer.WriterToASCI Maven / Gradle / Ivy
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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.
*/
/*
* $Id: WriterToASCI.java,v 1.1 2006/06/14 06:12:19 alexsmirnov Exp $
*/
package org.ajax4jsf.xml.serializer;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
/**
* This class writes ASCII to a byte stream as quickly as possible. For the
* moment it does not do buffering, though I reserve the right to do some
* buffering down the line if I can prove that it will be faster even if the
* output stream is buffered.
*
* This class is only used internally within Xalan.
*
* @xsl.usage internal
*/
class WriterToASCI extends Writer implements WriterChain
{
/** The byte stream to write to. */
private final OutputStream m_os;
/**
* Create an unbuffered ASCII writer.
*
*
* @param os The byte stream to write to.
*/
public WriterToASCI(OutputStream os)
{
m_os = os;
}
/**
* Write a portion of an array of characters.
*
* @param chars Array of characters
* @param start Offset from which to start writing characters
* @param length Number of characters to write
*
* @exception IOException If an I/O error occurs
*
* @throws java.io.IOException
*/
public void write(char chars[], int start, int length)
throws java.io.IOException
{
int n = length+start;
for (int i = start; i < n; i++)
{
m_os.write(chars[i]);
}
}
/**
* Write a single character. The character to be written is contained in
* the 16 low-order bits of the given integer value; the 16 high-order bits
* are ignored.
*
* Subclasses that intend to support efficient single-character output
* should override this method.
*
* @param c int specifying a character to be written.
* @exception IOException If an I/O error occurs
*/
public void write(int c) throws IOException
{
m_os.write(c);
}
/**
* Write a string.
*
* @param s String to be written
*
* @exception IOException If an I/O error occurs
*/
public void write(String s) throws IOException
{
int n = s.length();
for (int i = 0; i < n; i++)
{
m_os.write(s.charAt(i));
}
}
/**
* Flush the stream. If the stream has saved any characters from the
* various write() methods in a buffer, write them immediately to their
* intended destination. Then, if that destination is another character or
* byte stream, flush it. Thus one flush() invocation will flush all the
* buffers in a chain of Writers and OutputStreams.
*
* @exception IOException If an I/O error occurs
*/
public void flush() throws java.io.IOException
{
m_os.flush();
}
/**
* Close the stream, flushing it first. Once a stream has been closed,
* further write() or flush() invocations will cause an IOException to be
* thrown. Closing a previously-closed stream, however, has no effect.
*
* @exception IOException If an I/O error occurs
*/
public void close() throws java.io.IOException
{
m_os.close();
}
/**
* Get the output stream where the events will be serialized to.
*
* @return reference to the result stream, or null of only a writer was
* set.
*/
public OutputStream getOutputStream()
{
return m_os;
}
/**
* Get the writer that this writer directly chains to.
*/
public Writer getWriter()
{
return null;
}
}