content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.cli.fs.command;
  
  import alluxio.annotation.PublicApi;
  import alluxio.client.file.FileSystem;
  import alluxio.client.file.FileSystemContext;
  import alluxio.conf.InstancedConfiguration;
  import alluxio.conf.PropertyKey;
  import alluxio.exception.AlluxioException;
  import alluxio.exception.status.InvalidArgumentException;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.Options;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.File;
  import java.io.IOException;
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * Copies the specified file specified by "source path" to the path specified by "remote path".
   * This command will fail if "remote path" already exists.
   */
  @ThreadSafe
  @PublicApi
  public final class CopyFromLocalCommand extends AbstractFileSystemCommand {
    private static final Logger LOG = LoggerFactory.getLogger(CopyFromLocalCommand.class);
  
    private final CpCommand mCpCommand;
  
    /**
     * @param fsContext the filesystem of Alluxio
     */
    public CopyFromLocalCommand(FileSystemContext fsContext) {
      super(fsContext);
      // The copyFromLocal command needs its own filesystem context because we overwrite the
      // block location policy configuration.
      // The original one can't be closed because it may still be in-use within the same shell.
      InstancedConfiguration conf = new InstancedConfiguration(
          fsContext.getClusterConf().copyProperties());
      conf.set(PropertyKey.USER_BLOCK_WRITE_LOCATION_POLICY,
          conf.get(PropertyKey.USER_FILE_COPYFROMLOCAL_BLOCK_LOCATION_POLICY));
      if (LOG.isDebugEnabled()) {
        LOG.debug(String.format("copyFromLocal block write location policy is %s from property %s",
            conf.get(PropertyKey.USER_BLOCK_WRITE_LOCATION_POLICY),
            PropertyKey.USER_FILE_COPYFROMLOCAL_BLOCK_LOCATION_POLICY.getName()));
      }
      FileSystemContext updatedCtx = FileSystemContext.create(conf);
      mFsContext = updatedCtx;
      mFileSystem = FileSystem.Factory.create(updatedCtx);
      mCpCommand = new CpCommand(updatedCtx);
    }
  
    @Override
    public void close() throws IOException {
      // Close updated {@link FileSystem} instance that is created for internal cp command.
      // This will close the {@link FileSystemContext} associated with it.
      mFileSystem.close();
    }
  
    @Override
    public String getCommandName() {
      return "copyFromLocal";
    }
  
    @Override
    public Options getOptions() {
      return new Options().addOption(CpCommand.THREAD_OPTION)
          .addOption(CpCommand.BUFFER_SIZE_OPTION);
    }
  
    @Override
    public void validateArgs(CommandLine cl) throws InvalidArgumentException {
      mCpCommand.validateArgs(cl);
    }
  
    @Override
    public int run(CommandLine cl) throws AlluxioException, IOException {
      String[] args = cl.getArgs();
      String srcPath = args[0];
      cl.getArgList().set(0, "file://" + new File(srcPath).getAbsolutePath());
      mCpCommand.run(cl);
      return 0;
    }
  
    @Override
    public String getUsage() {
      return "copyFromLocal "
          + "[--thread <num>] "
          + "[--buffersize <bytes>] "
          + "<src> <remoteDst>";
    }
  
    @Override
    public String getDescription() {
      return "Copies a file or a directory from local filesystem to Alluxio filesystem "
          + "in parallel at file level.";
    }
  }
  