/**
* 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.serializer.legacy;
import org.orbeon.oxf.common.OXFException;
import org.orbeon.oxf.externalcontext.ExternalContext;
import org.orbeon.oxf.pipeline.api.PipelineContext;
import org.orbeon.oxf.xml.XMLReceiver;
import org.orbeon.oxf.processor.ProcessorInput;
import org.orbeon.oxf.processor.ProcessorOutput;
import org.orbeon.oxf.processor.impl.CacheableTransformerOutputImpl;
import org.orbeon.oxf.processor.serializer.HttpSerializerBase;
import org.orbeon.oxf.util.ContentHandlerOutputStream;
import java.io.OutputStream;
/**
* Legacy HTTP binary serializer. This is deprecated by HttpSerializer.
*/
public abstract class HttpBinarySerializer extends HttpSerializerBase {
protected final void readInput(PipelineContext pipelineContext, ExternalContext.Response response, ProcessorInput input, Object _config) {
Config config = (Config) _config;
// Set content type
String contentType = getContentType(config, null, getDefaultContentType());
if (contentType != null)
response.setContentType(contentType);
// Read input into an OutputStream
readInput(pipelineContext, input, config, response.getOutputStream());
}
/**
* This must be overridden by subclasses.
*/
protected abstract void readInput(PipelineContext context, ProcessorInput input, HttpSerializerBase.Config config, OutputStream outputStream);
/**
* This method is use when the legacy serializer is used in the new converter mode. In this
* case, the converter exposes a "data" output, and the processor's start() method is not
* called.
*/
@Override
public ProcessorOutput createOutput(String name) {
if (!name.equals(OUTPUT_DATA))
throw new OXFException("Invalid output created: " + name);
final ProcessorOutput output = new CacheableTransformerOutputImpl(HttpBinarySerializer.this, name) {
public void readImpl(PipelineContext pipelineContext, XMLReceiver xmlReceiver) {
// Create OutputStream that converts to Base64
ContentHandlerOutputStream outputStream = new ContentHandlerOutputStream(xmlReceiver, true);
// Read configuration input
Config config = readConfig(pipelineContext);
String contentType = getContentType(config, null, getDefaultContentType());
try {
// Start document
outputStream.setContentType(contentType);
// Write content
readInput(pipelineContext, getInputByName(INPUT_DATA), config, outputStream);
// End document and close
outputStream.close();
} catch (Exception e) {
throw new OXFException(e);
}
}
};
addOutput(name, output);
return output;
}
}