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/*******************************************************************************
* Copyright (c) 2008, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ua.tests.help.webapp;
import java.io.IOException;
import java.io.OutputStream;
import javax.servlet.http.HttpServletRequest;
import org.eclipse.help.webapp.IFilter;
/**
* Used in FilterExtension test
*/
public class CommentFilter implements IFilter {
public OutputStream filter(HttpServletRequest req, OutputStream out) {
return new OutFilter(out);
}
private class OutFilter extends OutputStream {
private OutputStream out;
private boolean preambleWritten = false;
public OutFilter(OutputStream out) {
this.out = out;
}
public void write(int b) throws IOException {
if (!preambleWritten) {
preambleWritten = true;
String comment = "<!-- pre " + getCommentText() + " -->";
out.write(comment.getBytes());
}
out.write(b);
}
public void close() throws IOException {
String comment = "<!-- post " + getCommentText() + " -->";
out.write(comment.getBytes());
out.close();
super.close();
}
}
protected String getCommentText() {
return "comment";
}
}
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