/*
 * 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.tuscany.sca.binding.erlang.impl;

import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

import org.apache.tuscany.sca.assembly.xml.Constants;
import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor;
import org.apache.tuscany.sca.binding.erlang.ErlangBinding;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
import org.apache.tuscany.sca.policy.PolicyFactory;

/**
 * @version $Rev: $ $Date: $
 */
public class ErlangBindingProcessor implements StAXArtifactProcessor<ErlangBinding> {

    private PolicyFactory policyFactory;
    private PolicyAttachPointProcessor policyProcessor;
    
    public ErlangBindingProcessor(ModelFactoryExtensionPoint modelFactories) {
        this.policyFactory = modelFactories.getFactory(PolicyFactory.class);
        this.policyProcessor = new PolicyAttachPointProcessor(policyFactory);
    }

    /**
     * @see org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor#getArtifactType()
     */
    public QName getArtifactType() {
        return ErlangBinding.BINDING_ERLANG_QNAME;
    }

    /**
     * @see org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor#read(javax.xml.stream.XMLStreamReader)
     */
    public ErlangBinding read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
        ErlangBinding binding = new ErlangBindingImpl();

        // Read the policies
        policyProcessor.readPolicies(binding, reader);
        binding.setNode(reader.getAttributeValue(null, "node"));
        String mboxValue = reader.getAttributeValue(null, "mbox");
        if (mboxValue != null && mboxValue.length() > 0) {
            boolean boolMboxValue = false;
            try {
                boolMboxValue = Boolean.parseBoolean(mboxValue);
                binding.setMbox(boolMboxValue);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        binding.setModule(reader.getAttributeValue(null, "module"));
        return binding;
    }

    /**
     * @see org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor#write(java.lang.Object,
     *      javax.xml.stream.XMLStreamWriter)
     */
    public void write(ErlangBinding model, XMLStreamWriter writer) throws ContributionWriteException,
        XMLStreamException {
        writer.writeStartElement(Constants.SCA10_TUSCANY_NS, "binding.erlang");
        //TODO: implement
        writer.writeEndElement();
    }

    /**
     * @see org.apache.tuscany.sca.contribution.processor.ArtifactProcessor#getModelType()
     */
    public Class<ErlangBinding> getModelType() {
        return ErlangBinding.class;
    }

    /**
     * @see org.apache.tuscany.sca.contribution.processor.ArtifactProcessor#resolve(java.lang.Object,
     *      org.apache.tuscany.sca.contribution.resolver.ModelResolver)
     */
    public void resolve(ErlangBinding model, ModelResolver resolver) throws ContributionResolveException {
    }

}