Java DistCpUtils.unpackAttributes方法代码示例

本文整理汇总了Java中org.apache.hadoop.tools.util.DistCpUtils.unpackAttributes方法的典型用法代码示例。如果您正苦于以下问题：Java DistCpUtils.unpackAttributes方法的具体用法？Java DistCpUtils.unpackAttributes怎么用？Java DistCpUtils.unpackAttributes使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.tools.util.DistCpUtils的用法示例。

在下文中一共展示了DistCpUtils.unpackAttributes方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: preserveFileAttributesForDirectories

import org.apache.hadoop.tools.util.DistCpUtils; //导入方法依赖的package包/类
private void preserveFileAttributesForDirectories(Configuration conf) throws IOException {
  String attrSymbols = conf.get(DistCpConstants.CONF_LABEL_PRESERVE_STATUS);
  final boolean syncOrOverwrite = syncFolder || overwrite;

  LOG.info("About to preserve attributes: " + attrSymbols);

  EnumSet<FileAttribute> attributes = DistCpUtils.unpackAttributes(attrSymbols);
  final boolean preserveRawXattrs =
      conf.getBoolean(DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);

  Path sourceListing = new Path(conf.get(DistCpConstants.CONF_LABEL_LISTING_FILE_PATH));
  FileSystem clusterFS = sourceListing.getFileSystem(conf);
  SequenceFile.Reader sourceReader = new SequenceFile.Reader(conf,
                                    SequenceFile.Reader.file(sourceListing));
  long totalLen = clusterFS.getFileStatus(sourceListing).getLen();

  Path targetRoot = new Path(conf.get(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH));

  long preservedEntries = 0;
  try {
    CopyListingFileStatus srcFileStatus = new CopyListingFileStatus();
    Text srcRelPath = new Text();

    // Iterate over every source path that was copied.
    while (sourceReader.next(srcRelPath, srcFileStatus)) {
      // File-attributes for files are set at the time of copy,
      // in the map-task.
      if (! srcFileStatus.isDirectory()) continue;

      Path targetFile = new Path(targetRoot.toString() + "/" + srcRelPath);
      //
      // Skip the root folder when syncOrOverwrite is true.
      //
      if (targetRoot.equals(targetFile) && syncOrOverwrite) continue;

      FileSystem targetFS = targetFile.getFileSystem(conf);
      DistCpUtils.preserve(targetFS, targetFile, srcFileStatus, attributes,
          preserveRawXattrs);

      taskAttemptContext.progress();
      taskAttemptContext.setStatus("Preserving status on directory entries. [" +
          sourceReader.getPosition() * 100 / totalLen + "%]");
    }
  } finally {
    IOUtils.closeStream(sourceReader);
  }
  LOG.info("Preserved status on " + preservedEntries + " dir entries on target");
}

开发者ID:naver，项目名称:hadoop，代码行数:49，代码来源:CopyCommitter.java

示例2: setup

import org.apache.hadoop.tools.util.DistCpUtils; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper::setup() method. This extracts the DistCp-
 * options specified in the Job's configuration, to set up the Job.
 * @param context Mapper's context.
 * @throws IOException On IO failure.
 * @throws InterruptedException If the job is interrupted.
 */
@Override
public void setup(Context context) throws IOException, InterruptedException {
  conf = context.getConfiguration();

  syncFolders = conf.getBoolean(DistCpOptionSwitch.SYNC_FOLDERS.getConfigLabel(), false);
  ignoreFailures = conf.getBoolean(DistCpOptionSwitch.IGNORE_FAILURES.getConfigLabel(), false);
  skipCrc = conf.getBoolean(DistCpOptionSwitch.SKIP_CRC.getConfigLabel(), false);
  overWrite = conf.getBoolean(DistCpOptionSwitch.OVERWRITE.getConfigLabel(), false);
  append = conf.getBoolean(DistCpOptionSwitch.APPEND.getConfigLabel(), false);
  preserve = DistCpUtils.unpackAttributes(conf.get(DistCpOptionSwitch.
      PRESERVE_STATUS.getConfigLabel()));

  targetWorkPath = new Path(conf.get(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH));
  Path targetFinalPath = new Path(conf.get(
          DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH));
  targetFS = targetFinalPath.getFileSystem(conf);

  if (targetFS.exists(targetFinalPath) && targetFS.isFile(targetFinalPath)) {
    overWrite = true; // When target is an existing file, overwrite it.
  }

  if (conf.get(DistCpConstants.CONF_LABEL_SSL_CONF) != null) {
    initializeSSLConf(context);
  }
}

开发者ID:naver，项目名称:hadoop，代码行数:33，代码来源:CopyMapper.java

示例3: setup

import org.apache.hadoop.tools.util.DistCpUtils; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper::setup() method. This extracts the DistCp-
 * options specified in the Job's configuration, to set up the Job.
 * @param context Mapper's context.
 * @throws IOException On IO failure.
 * @throws InterruptedException If the job is interrupted.
 */
@Override
public void setup(Context context) throws IOException, InterruptedException {
  conf = context.getConfiguration();

  syncFolders = conf.getBoolean(DistCpOptionSwitch.SYNC_FOLDERS.getConfigLabel(), false);
  ignoreFailures = conf.getBoolean(DistCpOptionSwitch.IGNORE_FAILURES.getConfigLabel(), false);
  skipCrc = conf.getBoolean(DistCpOptionSwitch.SKIP_CRC.getConfigLabel(), false);
  overWrite = conf.getBoolean(DistCpOptionSwitch.OVERWRITE.getConfigLabel(), false);
  preserve = DistCpUtils.unpackAttributes(conf.get(DistCpOptionSwitch.
      PRESERVE_STATUS.getConfigLabel()));

  targetWorkPath = new Path(conf.get(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH));
  Path targetFinalPath = new Path(conf.get(
          DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH));
  targetFS = targetFinalPath.getFileSystem(conf);

  if (targetFS.exists(targetFinalPath) && targetFS.isFile(targetFinalPath)) {
    overWrite = true; // When target is an existing file, overwrite it.
  }

  if (conf.get(DistCpConstants.CONF_LABEL_SSL_CONF) != null) {
    initializeSSLConf(context);
  }
}

开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:32，代码来源:CopyMapper.java

示例4: setup

import org.apache.hadoop.tools.util.DistCpUtils; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper::setup() method. This extracts the DistCp-
 * options specified in the Job's configuration, to set up the Job.
 * @param context Mapper's context.
 * @throws IOException On IO failure.
 * @throws InterruptedException If the job is interrupted.
 */
@Override
public void setup(Context context) throws IOException, InterruptedException {
  conf = context.getConfiguration();

  syncFolders = conf.getBoolean(DistCpOptionSwitch.SYNC_FOLDERS.getConfigLabel(), false);
  ignoreFailures = conf.getBoolean(DistCpOptionSwitch.IGNORE_FAILURES.getConfigLabel(), false);
  skipCrc = conf.getBoolean(DistCpOptionSwitch.SKIP_CRC.getConfigLabel(), false);
  overWrite = conf.getBoolean(DistCpOptionSwitch.OVERWRITE.getConfigLabel(), false);
  append = conf.getBoolean(DistCpOptionSwitch.APPEND.getConfigLabel(), false);
  preserve = DistCpUtils.unpackAttributes(conf.get(DistCpOptionSwitch.
      PRESERVE_STATUS.getConfigLabel()));

  targetWorkPath = new Path(conf.get(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH));
  Path targetFinalPath = new Path(conf.get(
          DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH));
  targetFS = targetFinalPath.getFileSystem(conf);

  if (targetFS.exists(targetFinalPath) && targetFS.isFile(targetFinalPath)) {
    overWrite = true; // When target is an existing file, overwrite it.
  }

  if (conf.get(DistCpConstants.CONF_LABEL_SSL_CONF) != null) {
    initializeSSLConf(context);
  }
  startEpoch = System.currentTimeMillis();
}

开发者ID:aliyun-beta，项目名称:aliyun-oss-hadoop-fs，代码行数:34，代码来源:CopyMapper.java

示例5: getFileAttributeSettings

import org.apache.hadoop.tools.util.DistCpUtils; //导入方法依赖的package包/类
private static EnumSet<DistCpOptions.FileAttribute>
        getFileAttributeSettings(Mapper.Context context) {
  String attributeString = context.getConfiguration().get(
          DistCpOptionSwitch.PRESERVE_STATUS.getConfigLabel());
  return DistCpUtils.unpackAttributes(attributeString);
}

开发者ID:naver，项目名称:hadoop，代码行数:7，代码来源:CopyMapper.java

示例6: preserveFileAttributesForDirectories

import org.apache.hadoop.tools.util.DistCpUtils; //导入方法依赖的package包/类
private void preserveFileAttributesForDirectories(Configuration conf) throws IOException {
  String attrSymbols = conf.get(DistCpConstants.CONF_LABEL_PRESERVE_STATUS);
  LOG.info("About to preserve attributes: " + attrSymbols);

  EnumSet<FileAttribute> attributes = DistCpUtils.unpackAttributes(attrSymbols);

  Path sourceListing = new Path(conf.get(DistCpConstants.CONF_LABEL_LISTING_FILE_PATH));
  FileSystem clusterFS = sourceListing.getFileSystem(conf);
  SequenceFile.Reader sourceReader = new SequenceFile.Reader(conf,
                                    SequenceFile.Reader.file(sourceListing));
  long totalLen = clusterFS.getFileStatus(sourceListing).getLen();

  Path targetRoot = new Path(conf.get(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH));

  long preservedEntries = 0;
  try {
    FileStatus srcFileStatus = new FileStatus();
    Text srcRelPath = new Text();

    // Iterate over every source path that was copied.
    while (sourceReader.next(srcRelPath, srcFileStatus)) {
      // File-attributes for files are set at the time of copy,
      // in the map-task.
      if (! srcFileStatus.isDirectory()) continue;

      Path targetFile = new Path(targetRoot.toString() + "/" + srcRelPath);

      // Skip the root folder.
      // Status can't be preserved on root-folder. (E.g. multiple paths may
      // be copied to a single target folder. Which source-attributes to use
      // on the target is undefined.)
      if (targetRoot.equals(targetFile)) continue;

      FileSystem targetFS = targetFile.getFileSystem(conf);
      DistCpUtils.preserve(targetFS, targetFile, srcFileStatus,  attributes);

      taskAttemptContext.progress();
      taskAttemptContext.setStatus("Preserving status on directory entries. [" +
          sourceReader.getPosition() * 100 / totalLen + "%]");
    }
  } finally {
    IOUtils.closeStream(sourceReader);
  }
  LOG.info("Preserved status on " + preservedEntries + " dir entries on target");
}

开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:46，代码来源:CopyCommitter.java

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