/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/search/trunk/search-impl/impl/src/java/org/sakaiproject/search/component/adapter/util/SimpleDigester.java $
* $Id: SimpleDigester.java 105078 2012-02-24 23:00:38Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008 The Sakai Foundation
*
* Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.search.component.adapter.util;
import java.util.HashMap;
import java.util.Stack;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
/**
* @author ieb
*/
public class SimpleDigester implements ContentHandler
{
private Stack stack = new Stack();
private StringBuilder buffer = new StringBuilder();
private HashMap tags = new HashMap();
public static final String[] tagList = { "p", "\n", "div", "\n", "a", "\n",
"span", " ", "td", "\n", "th", "\n", "li", "\n", "content", ""
};
public SimpleDigester()
{
for (int i = 0; i < tagList.length; i += 2)
{
tags.put(tagList[i], tagList[i + 1]);
}
}
public String toString()
{
return buffer.toString();
}
public void setDocumentLocator(Locator arg0)
{
}
public void startDocument() throws SAXException
{
}
public void endDocument() throws SAXException
{
}
public void startPrefixMapping(String arg0, String arg1)
throws SAXException
{
}
public void endPrefixMapping(String arg0) throws SAXException
{
}
public void startElement(String namespaceURI, String localName,
String qName, Attributes atts) throws SAXException
{
stack.push(tags.get(localName.toLowerCase()));
}
public void endElement(String arg0, String arg1, String arg2)
throws SAXException
{
String marker = (String) stack.pop();
if (marker != null)
{
buffer.append(marker);
}
}
public void characters(char[] arg0, int arg1, int arg2) throws SAXException
{
if (stack.peek() != null)
{
String s = new String(arg0, arg1, arg2);
buffer.append(s.trim()).append(" ");
}
}
public void ignorableWhitespace(char[] arg0, int arg1, int arg2)
throws SAXException
{
}
public void processingInstruction(String arg0, String arg1)
throws SAXException
{
}
public void skippedEntity(String arg0) throws SAXException
{
}
}