SchemaLoader.java

/*
Name: 
    - SchemaLoader

Description: 
    -  

Requires:
    - 
    
Provides:
    - 

Part of: ProcessPuzzle Framework, Domain and Business Model Ready Architecture. Provides content, workflow and social networking functionality. 
http://www.processpuzzle.com

ProcessPuzzle - Content and Workflow Management Integration Business Platform

Author(s): 
    - Zsolt Zsuffa

Copyright: (C) 2011 This program is free software: you can redistribute it and/or modify it under the terms of the 
GNU General Public License as published by the Free Software Foundation, either version 3 of the License, 
or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.processpuzzle.application.resource.domain;

import java.io.IOException;
import java.io.InputStream;

import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

public class SchemaLoader implements EntityResolver {
   public static final String FILE_SCHEME = "file://";

   public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
      if( systemId.startsWith( FILE_SCHEME )) {
         String filename = systemId.substring(FILE_SCHEME.length());
//         InputStream stream = SchemaLoader.class.getClassLoader().getResourceAsStream(filename);
//         InputStream stream = SchemaLoader.class.getClassLoader().getResourceAsStream(filename);
         ResourceLoader resourceLoader = new DefaultResourceLoader();
         Resource resource = resourceLoader.getResource( "classpath:" + filename );
         InputStream stream = resource.getInputStream();
         return new InputSource(stream);
      } else {
         return null;
      }
   }
}