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.runtime.writer;
  
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
  import org.apache.hyracks.algebricks.runtime.evaluators.EvaluatorContext;
  import org.apache.hyracks.api.context.IHyracksTaskContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.api.exceptions.IWarningCollector;
  import org.apache.hyracks.api.exceptions.SourceLocation;
  
  public class PathResolverFactory implements IPathResolverFactory {
      private static final long serialVersionUID = 8971234908711238L;
      private final IExternalFileWriterFactory writerFactory;
      private final String fileExtension;
      private final IScalarEvaluatorFactory pathEvalFactory;
      private final String staticPath;
      private final SourceLocation pathSourceLocation;
  
      public PathResolverFactory(IExternalFileWriterFactory writerFactory, String fileExtension,
              IScalarEvaluatorFactory pathEvalFactory, String staticPath, SourceLocation pathSourceLocation) {
          this.writerFactory = writerFactory;
          this.fileExtension = fileExtension;
          this.pathEvalFactory = pathEvalFactory;
          this.pathSourceLocation = pathSourceLocation;
          this.staticPath = staticPath;
      }
  
      @Override
      public IPathResolver createResolver(IHyracksTaskContext context) throws HyracksDataException {
          int partition = context.getTaskAttemptId().getTaskId().getPartition();
          char fileSeparator = writerFactory.getSeparator();
          IPathResolver resolver;
          if (staticPath == null) {
              EvaluatorContext evaluatorContext = new EvaluatorContext(context);
              IScalarEvaluator pathEval = pathEvalFactory.createScalarEvaluator(evaluatorContext);
              IWarningCollector warningCollector = context.getWarningCollector();
              resolver = new DynamicPathResolver(fileExtension, fileSeparator, partition, pathEval, warningCollector,
                      pathSourceLocation);
          } else {
              resolver = new StaticPathResolver(fileExtension, fileSeparator, partition, staticPath);
          }
          return resolver;
      }
  }
  