content: /*
   * 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.asterix.external.provider;
  
  import java.util.Map;
  
  import org.apache.asterix.common.dataflow.ICcApplicationContext;
  import org.apache.asterix.common.external.IExternalFilterEvaluatorFactory;
  import org.apache.asterix.external.api.ITypedAdapterFactory;
  import org.apache.asterix.external.util.ExternalDataUtils;
  import org.apache.asterix.om.types.ARecordType;
  import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
  import org.apache.hyracks.api.application.ICCServiceContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.api.exceptions.IWarningCollector;
  
  /**
   * This class represents the entry point to all things adapters
   */
  public class AdapterFactoryProvider {
  
      private AdapterFactoryProvider() {
      }
  
      // get adapter factory. this method has the side effect of modifying the configuration as necessary
      public static ITypedAdapterFactory getAdapterFactory(ICCServiceContext serviceCtx, String adapterName,
              Map<String, String> configuration, ARecordType itemType, ARecordType metaType,
              IWarningCollector warningCollector, IExternalFilterEvaluatorFactory filterEvaluatorFactory)
              throws HyracksDataException, AlgebricksException {
          ExternalDataUtils.defaultConfiguration(configuration);
          ExternalDataUtils.prepare(adapterName, configuration);
          ICcApplicationContext context = (ICcApplicationContext) serviceCtx.getApplicationContext();
          ITypedAdapterFactory adapterFactory =
                  (ITypedAdapterFactory) context.getAdapterFactoryService().createAdapterFactory();
          adapterFactory.setOutputType(itemType);
          adapterFactory.setMetaType(metaType);
          adapterFactory.configure(serviceCtx, configuration, warningCollector, filterEvaluatorFactory);
          return adapterFactory;
      }
  }
  