【Java开源代码栏目提醒】:网学会员,鉴于大家对Java开源代码十分关注,论文会员在此为大家搜集整理了“BodyContentImpl.java”一文,供大家参考学习!
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* per
mission, please contact 3710167@qq.com.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 THE APACHE SOFTWARE FOUNDATION OR
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.jasper.runtime;
import java.io.IOException;
import java.io.Writer;
import java.io.Reader;
import java.io.CharArrayReader;
import java.io.PrintWriter;
import javax.servlet.ServletResponse;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyContent;
import org.apache.jasper.Constants;
/**
* Write text to a character-output stream, buffering characters so as
* to provide for the efficient writing of single characters, arrays,
* and strings.
*
* Provide support for discarding for the output that has been buffered.
*
* @author Rajiv Mordani
*/
public class BodyContentImpl extends BodyContent {
private char[] cb;
protected int bufferSize = Constants.DEFAULT_BUFFER_SIZE;
private int nextChar;
static String lineSeparator = System.getProperty("line.separator");
public BodyContentImpl (JspWriter writer) {
super(writer);
cb = new char[bufferSize];
nextChar = 0;
}
/**
* Write a single character.
*
*/
public void write(int c) throws IOException {
synchronized (lock) {
if (nextChar >= bufferSize) {
reAllocBuff (0);
}
cb[nextChar++] = (char) c;
}
}
private void reAllocBuff (int len) {
//Need to re-allocate the buffer since it is to be
//unbounded according to the updated spec..
char[] tmp = new char [bufferSize];
System.arraycopy(cb, 0, tmp, 0, cb.length);
//XXX Should it be multiple of DEFAULT_BUFFER_SIZE??
if (len <= Constants.DEFAULT_BUFFER_SIZE) {
cb = new char [bufferSize + Constants.DEFAULT_BUFFER_SIZE];
bufferSize += Constants.DEFAULT_BUFFER_SIZE;
} else {
cb = new char [bufferSize + len];
bufferSize += len;
}
System.arraycopy(tmp, 0, cb, 0, tmp.length);
tmp = null;
}
/**
* Write a portion of an array of characters.
*
* <p> Ordinarily this method stores characters from the given array into
* this stream's buffer, flushing the buffer to the underlying stream as
* needed. If the requested length is at least as large as the buffer,
* however, then this method will flush t