/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.cxf.jbi.transport;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Logger;

import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;

import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;

public final class JBIMessageHelper { 
    
    private static final Logger LOG = LogUtils.getL7dLogger(JBIMessageHelper.class);
    
    private static final TransformerFactory TRANSFORMER_FACTORY 
        = TransformerFactory.newInstance();

    private JBIMessageHelper() { 
        // complete 
    }
    
    
    public static InputStream convertMessageToInputStream(Source src) 
        throws IOException, TransformerConfigurationException, TransformerException { 

        final Transformer transformer = TRANSFORMER_FACTORY.newTransformer();
        
        ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
        StreamResult result = new StreamResult(baos);
        transformer.transform(src, result);
        LOG.finest(new Message("RECEIVED.MESSAGE", LOG) + new String(baos.toByteArray()));
        
        return new ByteArrayInputStream(baos.toByteArray());
    } 
}
