/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.isis.viewer.html.component.html;
import java.io.PrintWriter;
import org.apache.isis.core.commons.exceptions.IsisException;
import org.apache.isis.viewer.html.component.DebugPane;
public class HtmlDebug implements DebugPane {
private static final String SPACES = " ";
private final StringBuffer debug = new StringBuffer();
private int indent;
@Override
public void addSection(final String title) {
if (debug.length() > 0) {
appendln("</pre>");
}
appendln("<h2>");
appendln(title);
appendln("</h2><pre>");
}
@Override
public void appendln(final String text) {
debug.append(SPACES.substring(0, indent * 3));
debug.append(text);
debug.append("\n");
}
@Override
public void write(final PrintWriter writer) {
if (debug.length() > 0) {
writer.print(debug.toString());
writer.println("</pre>");
}
}
@Override
public void indent() {
indent++;
}
@Override
public void unindent() {
if (indent == 0) {
throw new IsisException();
}
indent--;
}
}