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yacy_search_server/source/net/yacy/upnp/JXPathParser.java

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/*
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 2002 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by SuperBonBon Industries (http://www.sbbi.net/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "UPNPLib" and "SuperBonBon Industries" must not be
* used to endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* info@sbbi.net.
*
* 5. Products derived from this software may not be called
* "SuperBonBon Industries", nor may "SBBI" appear in their name,
* without prior written permission of SuperBonBon Industries.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT,INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* on behalf of SuperBonBon Industries. For more information on
* SuperBonBon Industries, please see <http://www.sbbi.net/>.
*/
package net.yacy.upnp;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.jxpath.xml.DOMParser;
import org.apache.commons.jxpath.xml.XMLParser;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Parser to use with JXPath, this is used to fix some problems encountered
* with some UPNP devices returning buggy xml docs...
* This parser acts like a wrapper and make some chars search and replace
* such as 0x0 with 0x20 to produce a valid XML doc.
* @author <a href="mailto:superbonbon@sbbi.net">SuperBonBon</a>
* @version 1.0
*/
public class JXPathParser implements XMLParser {
private final static Log log = LogFactory.getLog( JXPathParser.class );
private char buggyChar = (char)0;
public Object parseXML( InputStream in ){
StringBuilder xml = new StringBuilder();
try {
byte[] buffer = new byte[512];
int readen = 0;
while ( ( readen = in.read( buffer ) ) != -1 ) {
xml.append( new String( buffer, 0, readen ) );
}
} catch ( IOException ex ) {
log.error( "IOException occured during XML reception", ex );
return null;
}
String doc = xml.toString();
log.debug( "Readen raw xml doc:\n" + doc );
if ( doc.indexOf( buggyChar ) != -1 ) {
doc = doc.replace( buggyChar, ' ' );
}
ByteArrayInputStream in2 = new ByteArrayInputStream( doc.getBytes() );
DOMParser parser = new DOMParser();
return parser.parseXML( in2 ) ;
}
}