/*
* Copyright 2004-2005 Graeme Rocher
*
* 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.
*/
package org.grails.web.pages.ext.jsp;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyContent;
import org.grails.buffer.StreamCharBuffer;
/**
* Uses an internal CharArrayWriter.
*
* @author Graeme Rocher
* @since 1.1
*/
class BodyContentImpl extends BodyContent {
static final char[] LINE_BREAK = System.getProperty("line.separator").toCharArray();
private StreamCharBuffer streamBuffer;
private Writer streamBufferWriter;
BodyContentImpl(JspWriter out, boolean buffer) {
super(out);
if (buffer) initBuffer();
}
void initBuffer() {
streamBuffer = new StreamCharBuffer();
streamBufferWriter = streamBuffer.getWriter();
}
@Override
public void flush() throws IOException {
if (streamBuffer == null) {
getEnclosingWriter().flush();
}
}
@Override
public void clear() throws IOException {
clearBuffer();
}
@Override
public void clearBuffer() throws IOException {
if (streamBuffer != null) {
initBuffer();
}
else {
throw new IOException("Can't clear");
}
}
@Override
public int getRemaining() {
return Integer.MAX_VALUE;
}
@Override
public void newLine() throws IOException {
write(LINE_BREAK);
}
@Override
public void close() throws IOException {
// do nothing
}
@Override
public void print(boolean b) throws IOException {
write(b ? Boolean.TRUE.toString() : Boolean.FALSE.toString());
}
@Override
public void print(char c) throws IOException {
write(c);
}
@Override
public void print(char[] chars) throws IOException {
write(chars);
}
@Override
public void print(double d) throws IOException {
write(Double.toString(d));
}
@Override
public void print(float f) throws IOException {
write(Float.toString(f));
}
@Override
public void print(int i) throws IOException {
write(Integer.toString(i));
}
@Override
public void print(long l) throws IOException {
write(Long.toString(l));
}
@Override
public void print(Object o) throws IOException {
write(o == null ? "null" : o.toString());
}
@Override
public void print(String s) throws IOException {
write(s);
}
@Override
public void println() throws IOException {
newLine();
}
@Override
public void println(boolean b) throws IOException {
print(b);
newLine();
}
@Override
public void println(char c) throws IOException {
print(c);
newLine();
}
@Override
public void println(char[] chars) throws IOException {
print(chars);
newLine();
}
@Override
public void println(double d) throws IOException {
print(d);
newLine();
}
@Override
public void println(float f) throws IOException {
print(f);
newLine();
}
@Override
public void println(int i) throws IOException {
print(i);
newLine();
}
@Override
public void println(long l) throws IOException {
print(l);
newLine();
}
@Override
public void println(Object o) throws IOException {
print(o);
newLine();
}
@Override
public void println(String s) throws IOException {
print(s);
newLine();
}
@Override
public void write(int c) throws IOException {
if (streamBufferWriter != null) {
streamBufferWriter.write(c);
}
else {
getEnclosingWriter().write(c);
}
}
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
if (streamBufferWriter != null) {
streamBufferWriter.write(cbuf, off, len);
}
else {
getEnclosingWriter().write(cbuf, off, len);
}
}
@Override
public String getString() {
return streamBuffer.toString();
}
@Override
public Reader getReader() {
return streamBuffer.getReader();
}
@Override
public void writeOut(Writer out) throws IOException {
streamBuffer.writeTo(out);
}
}