In order to support content negotiation for parse=xml [1], I suggest that we create a new Class(say XIncludeInputSource [3]) by extending XMLInputSource and have setter and getter methods to store and retrieve Http parameters [2] .We will use this instead of XMLInputsource when a document is being included.
Any suggestions or comments ?
-- Regards, Venu
[1]From XIncludeHandler.java.
// REVISIT: If we're going to support content negotation for // parse=xml we need to find a clean way to propogate the // parameters to the child parser. We cannot set those parameters // here because we may lose some information if we process the // URLConnection and then open a stream. The parser needs a // URLConnection to follow HTTP redirects and may also need
// this object in the future to read external encoding information // which may be available in the Content-Type. -- mrglavas
[2]http://www.w3.org/TR/2003/WD-xinclude-20031110/
[3]A small java file [A quick writeup of what i intent to say]
/* * The Apache Software License, Version 1.1 * * * Copyright (c) 2000-2002 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, 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 the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Xerces" and "Apache Software Foundation" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache", * nor may "Apache" appear in their name, without prior written * permission of the Apache Software Foundation. * * 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 (INCLUDING, 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 the Apache Software Foundation and was * originally based on software copyright (c) 1999, International * Business Machines, Inc., http://www.apache.org. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */
package org.apache.xerces.xinclude;
import org.apache.xerces.util.XMLInputSourceAdaptor;
import org.apache.xerces.xni.XMLResourceIdentifier;
import org.apache.xerces.xni.parser.XMLInputSource;
import java.io.InputStream;
import java.io.Reader;
import java.util.Properties;
import javax.xml.transform.stream.StreamSource;
public class XIncludeInputSource extends XMLInputSource {
Properties props = null;
/**
* Constructs an input source from just the public and system
* identifiers, leaving resolution of the entity and opening of
* the input stream up to the caller.
*
* @param publicId The public identifier, if known.
* @param systemId The system identifier. This value should
* always be set, if possible, and can be
* relative or absolute. If the system identifier
* is relative, then the base system identifier
* should be set.
* @param baseSystemId The base system identifier. This value should
* always be set to the fully expanded URI of the
* base system identifier, if possible.
*/
public XIncludeInputSource(String publicId, String systemId,
String baseSystemId) {
super(publicId,systemId,baseSystemId);
props = new Properties();
}
/**
* Constructs an input source from a XMLResourceIdentifier
* object, leaving resolution of the entity and opening of
* the input stream up to the caller.
*
* @param resourceIdentifier the XMLResourceIdentifier containing the
information
*/
public XIncludeInputSource(XMLResourceIdentifier resourceIdentifier) {
super(resourceIdentifier);
props = new Properties();
}
/**
* Constructs an input source from a byte stream.
*
* @param publicId The public identifier, if known.
* @param systemId The system identifier. This value should
* always be set, if possible, and can be
* relative or absolute. If the system identifier
* is relative, then the base system identifier
* should be set.
* @param baseSystemId The base system identifier. This value should
* always be set to the fully expanded URI of the
* base system identifier, if possible.
* @param byteStream The byte stream.
* @param encoding The encoding of the byte stream, if known.
*/
public XIncludeInputSource(String publicId, String systemId,
String baseSystemId, InputStream byteStream,
String encoding) {
super(publicId,systemId,baseSystemId,byteStream,encoding);
props = new Properties();
} // <init>(String,String,String,InputStream,String)
/**
* Constructs an input source from a character stream.
*
* @param publicId The public identifier, if known.
* @param systemId The system identifier. This value should
* always be set, if possible, and can be
* relative or absolute. If the system identifier
* is relative, then the base system identifier
* should be set.
* @param baseSystemId The base system identifier. This value should
* always be set to the fully expanded URI of the
* base system identifier, if possible.
* @param charStream The character stream.
* @param encoding The original encoding of the byte stream
* used by the reader, if known.
*/
public XIncludeInputSource(String publicId, String systemId,
String baseSystemId, Reader charStream,
String encoding) {
super(publicId,systemId,baseSystemId,charStream,encoding);
props = new Properties();
} // <init>(String,String,String,Reader,String)
/**
* Constructs an input source from [EMAIL PROTECTED] StreamSource}.
*/
public XIncludeInputSource( StreamSource source ) {
super(source);
props = new Properties();
}
/**
store Accept,Accept-Charset, Accept-Language HTTP request property
*/
public void setProperty(String propName , String propValue){
if(propName!= null && propValue != null){
props.put(propName,propValue);
}
}
/**
get Accept,Accept-Charset, Accept-Language HTTP request property
*/
public Object getProperty(String propName){
if(propName != null)
return props.get(propName);
return null;
}
}
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