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/*******************************************************************************
* Copyright (c) 2011 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.help.internal.webapp.parser;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Properties;
import org.eclipse.help.internal.webapp.utils.JSonHelper;
public class ParseElement {
private Properties props;
private ArrayList children = new ArrayList();
private ParseElement parent;
public ParseElement(Properties props, ParseElement parent) {
this.props = props;
this.parent = parent;
}
public ParseElement(Properties props) {
this(props, null);
}
public void updateParseElement(Properties props) {
this.props = props;
}
public Properties getProps() {
return props;
}
public ParseElement getParent() {
return parent;
}
public String getProperty(String key) {
return (props != null) ? props.getProperty(key) : ""; //$NON-NLS-1$
}
public String toString() {
return (props != null) ? props.toString() : ""; //$NON-NLS-1$
}
public void addChild(ParseElement elem) {
children.add(elem);
}
public int getChildrenCount() {
return children.size();
}
public String toJSON(int level) {
StringBuffer buff = new StringBuffer();
String space = JSonHelper.SPACE;
for (int s = 0; s < level; s++) {
space += JSonHelper.SPACE;
}
buff.append(JSonHelper.NEWLINE + space);
buff.append(JSonHelper.BEGIN_BRACE);
if (props != null) {
Enumeration enumObj = props.keys();
while (enumObj.hasMoreElements()) {
String key = (String) enumObj.nextElement();
String val = props.getProperty(key);
buff.append(JSonHelper.NEWLINE + space + JSonHelper.SPACE);
buff.append(key);
buff.append(JSonHelper.COLON);
try {
val = URLEncoder.encode(val, "UTF-8"); //$NON-NLS-1$
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
buff.append(JSonHelper.getQuotes(val));
buff.append(JSonHelper.COMMA);
}
}
if (children.size() <= 0) {
int len = buff.length();
char ch = buff.charAt(len - 1);
if (ch == ',') {
buff.deleteCharAt(len - 1);
buff.append(JSonHelper.NEWLINE + space);
}
} else {
buff.append(JSonHelper.NEWLINE + space + JSonHelper.SPACE);
buff.append(JSonHelper.CHILDREN);
buff.append(JSonHelper.COLON);
buff.append(JSonHelper.BEGIN_BRACKET);
for (int i = 0; i < children.size(); i++) {
if (i > 0)
buff.append(JSonHelper.COMMA);
ParseElement element = (ParseElement) children.get(i);
buff.append(element.toJSON(level + 2));
}
buff.append(JSonHelper.NEWLINE + space + JSonHelper.SPACE);
buff.append(JSonHelper.END_BRACKET);
buff.append(JSonHelper.NEWLINE + space);
}
buff.append(JSonHelper.END_BRACE);
return buff.toString();
}
}
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