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Apache CXF Runtime XmlBeans DataBinding
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/**
 * 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.xmlbeans;

import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

import org.w3c.dom.Node;


import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.xmlschema.SchemaCollection;
import org.apache.cxf.databinding.AbstractDataBinding;
import org.apache.cxf.databinding.DataReader;
import org.apache.cxf.databinding.DataWriter;
import org.apache.cxf.service.Service;
import org.apache.cxf.service.model.ServiceInfo;


/**
 * 
 */
public class XmlBeansDataBinding extends AbstractDataBinding {
    private static final Logger LOG = LogUtils.getLogger(XmlBeansDataBinding.class);

    private static final Class SUPPORTED_READER_FORMATS[] = new Class[] {XMLStreamReader.class};
    private static final Class SUPPORTED_WRITER_FORMATS[]
        = new Class[] {XMLStreamWriter.class, Node.class};
    
    
    @SuppressWarnings("unchecked")
    public  DataWriter createWriter(Class c) {
        if (c == XMLStreamWriter.class) {
            return (DataWriter)new DataWriterImpl();
        } else if (c == Node.class) {
            return (DataWriter)new NodeDataWriterImpl();
        }
        return null;
    }

    @SuppressWarnings("unchecked")
    public  DataReader createReader(Class c) {
        DataReader dr = null;
        if (c == XMLStreamReader.class) {
            dr = (DataReader)new DataReaderImpl();
        }
        return dr;
    }
    

    /**
     * XmlBeans has no declared namespace prefixes.
     * {@inheritDoc}
     */
    public Map getDeclaredNamespaceMappings() {
        return null;
    }

    public Class[] getSupportedReaderFormats() {
        return SUPPORTED_READER_FORMATS;
    }

    public Class[] getSupportedWriterFormats() {
        return SUPPORTED_WRITER_FORMATS;
    }

    public void initialize(Service service) {
        if (LOG.isLoggable(Level.FINER)) {
            LOG.log(Level.FINER, "Creating XmlBeansDatabinding for " + service.getName());
        }
        for (ServiceInfo serviceInfo : service.getServiceInfos()) {
            SchemaCollection col = serviceInfo.getXmlSchemaCollection();

            if (col.getXmlSchemas().length > 1) {
                // someone has already filled in the types
                continue;
            } 
            
            XmlBeansSchemaInitializer schemaInit 
                = new XmlBeansSchemaInitializer(serviceInfo, col, this);
            schemaInit.walk();
        }
    }

}