/*
 * 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.ode.bpel.compiler.wsdl;

import javax.wsdl.Definition;
import javax.wsdl.Operation;
import javax.wsdl.WSDLException;
import javax.wsdl.extensions.AttributeExtensible;
import javax.wsdl.extensions.ExtensionRegistry;
import javax.wsdl.factory.WSDLFactory;
import javax.wsdl.xml.WSDLReader;
import javax.wsdl.xml.WSDLWriter;
import javax.xml.namespace.QName;

/**
 * Implementation of the BPEL-aware {@link javax.wsdl.factory.WSDLFactory}.
 */
abstract class WSDLFactoryImpl extends WSDLFactory implements WSDLFactory4BPEL {
  private WSDLFactory _wsdlFactory;

  /** BPEL Namespace (<code>bpws</code>). */
  protected String _bpwsNS;

  /** Partner Link Namespace (<code>plnk</code>). */
  protected String _plnkNS;

  /** Property and Alias Namespace (<code>plnk</code>). */
  protected String _propNS;

  WSDLFactoryImpl(String bpwsNS, String plnkNS, String propNS)  {
    try {
      _wsdlFactory  = WSDLFactory.newInstance();
    } catch (WSDLException e) {
      throw new AssertionError("Unable to load WSDL4J!");
    }
    
    _bpwsNS = bpwsNS;
    _plnkNS = plnkNS;
    _propNS = propNS;
  }

  /**
   * Create a {@link Definition4BPEL} object out of a standard
   * WSDL {@link Definition}.
   * @param wsdlDef WSDL {@link Definition}
   * @return new {@link Definition4BPEL} object
   */
  public Definition4BPEL narrow(Definition wsdlDef) {
    if (wsdlDef instanceof Definition4BPEL)
      return (Definition4BPEL) wsdlDef;
    return new Definition4BPELImpl(wsdlDef, _bpwsNS, _plnkNS, _propNS);
  }

  public Definition newDefinition() {
    Definition def = _wsdlFactory.newDefinition();
    def.setExtensionRegistry(newPopulatedExtensionRegistry());
    return new Definition4BPELImpl(def, _bpwsNS, _plnkNS, _propNS);
  }


  public WSDLReader newWSDLReader() {
    WSDLReader reader = new WSDLReaderImpl(this);
    reader.setFactoryImplName(getClass().getName());
    reader.setFeature("javax.wsdl.verbose", false);
    reader.setExtensionRegistry(newPopulatedExtensionRegistry());
    return reader;
  }

  public WSDLWriter newWSDLWriter() {
    WSDLWriter writer = _wsdlFactory.newWSDLWriter();
    writer.setFeature("javax.wsdl.verbose", false);
    return writer;
  }

  public ExtensionRegistry newPopulatedExtensionRegistry() {
    ExtensionRegistry extRegistry = _wsdlFactory.newPopulatedExtensionRegistry();
    extRegistry.registerExtensionAttributeType(Operation.class, 
            new QName("http://www.w3.org/ns/wsdl-extensions","safe"), AttributeExtensible.STRING_TYPE);
    
    return extRegistry;

  }
}