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.operators;
  
  import java.io.IOException;
  
  import org.apache.asterix.common.metadata.Namespace;
  import org.apache.hyracks.api.context.IHyracksTaskContext;
  import org.apache.hyracks.api.dataflow.IOperatorNodePushable;
  import org.apache.hyracks.api.dataflow.value.IRecordDescriptorProvider;
  import org.apache.hyracks.api.io.FileReference;
  import org.apache.hyracks.api.job.IOperatorDescriptorRegistry;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  public final class LibraryDeployCommitOperatorDescriptor extends AbstractLibraryOperatorDescriptor {
  
      private static final long serialVersionUID = 1L;
  
      private static final Logger LOGGER = LogManager.getLogger(LibraryDeployCommitOperatorDescriptor.class);
  
      public LibraryDeployCommitOperatorDescriptor(IOperatorDescriptorRegistry spec, Namespace namespace,
              String libraryName) {
          super(spec, namespace, libraryName);
      }
  
      @Override
      public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
              IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) {
          return new AbstractLibraryNodePushable(ctx) {
              @Override
              protected void execute() throws IOException {
                  if (LOGGER.isInfoEnabled()) {
                      LOGGER.info("Commit deployment of library {}.{}", namespace, libraryName);
                  }
  
                  // #. rename 'stage' dir into 'rev_1' dir
                  FileReference rev1 = getRev1Dir();
                  FileReference stage = getStageDir();
                  move(stage, rev1);
  
                  // #. flush library dir
                  FileReference libDir = getLibraryDir();
                  flushDirectory(libDir);
              }
          };
      }
  }
  