/**
* Copyright (C) 2010 Orbeon, Inc.
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU Lesser General Public License as published by the Free Software Foundation; either version
* 2.1 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 Lesser General Public License for more details.
*
* The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
*/
package org.orbeon.oxf.processor.converter;
import org.apache.commons.fileupload.FileItem;
import org.orbeon.dom.Element;
import org.orbeon.oxf.common.OXFException;
import org.orbeon.oxf.pipeline.api.PipelineContext;
import org.orbeon.oxf.xml.XMLParsing;
import org.orbeon.oxf.xml.XMLReceiver;
import org.orbeon.oxf.processor.*;
import org.orbeon.oxf.processor.generator.URLGenerator;
import org.orbeon.oxf.processor.impl.CacheableTransformerOutputImpl;
import org.orbeon.oxf.processor.serializer.BinaryTextXMLReceiver;
import org.orbeon.oxf.util.NetUtils;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
/**
* This converter converts from a binary document or a text document to a parsed XML document.
*/
public class ToXMLConverter extends ProcessorImpl {
public ToXMLConverter() {
addInputInfo(new ProcessorInputOutputInfo(INPUT_DATA));
addInputInfo(new ProcessorInputOutputInfo(INPUT_CONFIG));
addOutputInfo(new ProcessorInputOutputInfo(OUTPUT_DATA));
}
@Override
public ProcessorOutput createOutput(String name) {
final ProcessorOutput output = new CacheableTransformerOutputImpl(ToXMLConverter.this, name) {
public void readImpl(PipelineContext pipelineContext, XMLReceiver xmlReceiver) {
// Read config input
final XMLParsing.ParserConfiguration config = readCacheInputAsObject(pipelineContext, getInputByName(INPUT_CONFIG), new CacheableInputReader<XMLParsing.ParserConfiguration>() {
public XMLParsing.ParserConfiguration read(org.orbeon.oxf.pipeline.api.PipelineContext context, ProcessorInput input) {
final Element configElement = readInputAsOrbeonDom(context, input).getRootElement();
return new XMLParsing.ParserConfiguration(
ProcessorUtils.selectBooleanValue(configElement, "/config/validating", URLGenerator.DEFAULT_VALIDATING),
ProcessorUtils.selectBooleanValue(configElement, "/config/handle-xinclude", URLGenerator.DEFAULT_HANDLE_XINCLUDE),
ProcessorUtils.selectBooleanValue(configElement, "/config/external-entities", URLGenerator.DEFAULT_EXTERNAL_ENTITIES));
}
});
try {
// Get FileItem
final FileItem fileItem = NetUtils.prepareFileItem(NetUtils.REQUEST_SCOPE, logger);
// TODO: Can we avoid writing to a FileItem?
// Read to OutputStream
readInputAsSAX(pipelineContext, INPUT_DATA, new BinaryTextXMLReceiver(fileItem.getOutputStream()));
// Create parser
final XMLReader reader = XMLParsing.newXMLReader(config);
// Run parser on InputStream
//inputSource.setSystemId();
reader.setContentHandler(xmlReceiver);
reader.parse(new InputSource(fileItem.getInputStream()));
} catch (Exception e) {
throw new OXFException(e);
}
}
};
addOutput(name, output);
return output;
}
}