/*
 * 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.uima.adapter.vinci;

import java.util.Map;

import org.apache.uima.Constants;
import org.apache.uima.analysis_engine.service.impl.AnalysisEngineServiceAdapter;
import org.apache.uima.resource.ResourceInitializationException;
import org.apache.uima.resource.ResourceSpecifier;
import org.apache.uima.resource.URISpecifier;

// TODO: Auto-generated Javadoc
/**
 * Reference implementation of {@link AnalysisEngineServiceAdapter} for Vinci.
 * 
 * 
 */
public class VinciAnalysisEngineServiceAdapter extends AnalysisEngineServiceAdapter {

  /**
   * Initialize.
   *
   * @param aSpecifier
   *          the a specifier
   * @param aAdditionalParams
   *          the a additional params
   * @return true, if successful
   * @throws ResourceInitializationException
   *           the resource initialization exception
   * @see org.apache.uima.resource.Resource#initialize(ResourceSpecifier, Map)
   */
  @Override
  public boolean initialize(ResourceSpecifier aSpecifier, Map<String, Object> aAdditionalParams)
          throws ResourceInitializationException {
    // aSpecifier must be a URISpecifier
    if (!(aSpecifier instanceof URISpecifier)) {
      return false;
    }

    URISpecifier uriSpec = (URISpecifier) aSpecifier;
    // protocol must be Vinci or VinciBinaryCAS
    if (!uriSpec.getProtocol().equals(Constants.PROTOCOL_VINCI)
            && !uriSpec.getProtocol().equals(Constants.PROTOCOL_VINCI_BINARY_CAS)) {
      return false;
    }

    // As of 2.0, we allow an AnalysisEngine adapter to connect
    // to a CAS Consumer service. So we no longer reject that case.

    // create proxy to service
    if (uriSpec.getProtocol().equals(Constants.PROTOCOL_VINCI)) {
      setStub(new VinciAnalysisEngineServiceStub(uriSpec.getUri(), uriSpec.getTimeout(), this,
              uriSpec.getParameters()));
    } else {
      setStub(new VinciBinaryAnalysisEngineServiceStub(uriSpec.getUri(), uriSpec.getTimeout(), this,
              uriSpec.getParameters()));
    }

    // do superclass initialization, which among other things initializes UimaContext.
    // note we need to establish connection to service before calling this, since
    // superclass initialization depends on having access to the component metadata.
    super.initialize(aSpecifier, aAdditionalParams);

    // Sofa mappings are currently not implemented for remote AEs. Catch this
    // and report an error.
    if (getUimaContextAdmin().getSofaMap().size() > 0) {
      throw new ResourceInitializationException(
              ResourceInitializationException.SOFA_MAPPING_NOT_SUPPORTED_FOR_REMOTE,
              new Object[] { getMetaData().getName() });
    }

    return true;
  }

}
