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Java DistCpOptions.FileAttribute方法代码示例

本文整理汇总了Java中org.apache.hadoop.tools.DistCpOptions.FileAttribute方法的典型用法代码示例。如果您正苦于以下问题：Java DistCpOptions.FileAttribute方法的具体用法？Java DistCpOptions.FileAttribute怎么用？Java DistCpOptions.FileAttribute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.DistCpOptions的用法示例。


在下文中一共展示了DistCpOptions.FileAttribute方法的12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: copyFileWithRetry

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
private void copyFileWithRetry(String description,
    FileStatus sourceFileStatus, Path target, Context context,
    FileAction action, EnumSet<DistCpOptions.FileAttribute> fileAttributes)
    throws IOException {
  long bytesCopied;
  try {
    bytesCopied = (Long) new RetriableFileCopyCommand(skipCrc, description,
        action).execute(sourceFileStatus, target, context, fileAttributes);
  } catch (Exception e) {
    context.setStatus("Copy Failure: " + sourceFileStatus.getPath());
    throw new IOException("File copy failed: " + sourceFileStatus.getPath() +
        " --> " + target, e);
  }
  incrementCounter(context, Counter.BYTESEXPECTED, sourceFileStatus.getLen());
  incrementCounter(context, Counter.BYTESCOPIED, bytesCopied);
  incrementCounter(context, Counter.COPY, 1);
}
开发者ID:naver，项目名称:hadoop，代码行数:18，代码来源:CopyMapper.java

示例2: copyFileWithRetry

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
private void copyFileWithRetry(String description,
    FileStatus sourceFileStatus, Path target, Context context,
    FileAction action, EnumSet<DistCpOptions.FileAttribute> fileAttributes)
    throws IOException {
  long bytesCopied;
  try {
    bytesCopied = (Long) new RetriableFileCopyCommand(skipCrc, description,
        action).execute(sourceFileStatus, target, context, fileAttributes);
  } catch (Exception e) {
    context.setStatus("Copy Failure: " + sourceFileStatus.getPath());
    throw new IOException("File copy failed: " + sourceFileStatus.getPath() +
        " --> " + target, e);
  }
  incrementCounter(context, Counter.BYTESEXPECTED, sourceFileStatus.getLen());
  incrementCounter(context, Counter.BYTESCOPIED, bytesCopied);
  incrementCounter(context, Counter.COPY, 1);
  totalBytesCopied += bytesCopied;
}
开发者ID:aliyun-beta，项目名称:aliyun-oss-hadoop-fs，代码行数:19，代码来源:CopyMapper.java

示例3: copyFileWithRetry

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
private void copyFileWithRetry(String description, FileStatus sourceFileStatus,
             Path target, Context context,
             EnumSet<DistCpOptions.FileAttribute> fileAttributes) throws IOException {

  long bytesCopied;
  try {
    bytesCopied = (Long)new RetriableFileCopyCommand(skipCrc, description)
                     .execute(sourceFileStatus, target, context, fileAttributes);
  } catch (Exception e) {
    context.setStatus("Copy Failure: " + sourceFileStatus.getPath());
    throw new IOException("File copy failed: " + sourceFileStatus.getPath() +
        " --> " + target, e);
  }
  incrementCounter(context, Counter.BYTESEXPECTED, sourceFileStatus.getLen());
  incrementCounter(context, Counter.BYTESCOPIED, bytesCopied);
  incrementCounter(context, Counter.COPY, 1);
}
开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:18，代码来源:CopyMapper.java

示例4: testCopyFailOnBlockSizeDifference

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
@Test(timeout=40000)
public void testCopyFailOnBlockSizeDifference() {
  try {

    deleteState();
    createSourceDataWithDifferentBlockSize();

    FileSystem fs = cluster.getFileSystem();
    CopyMapper copyMapper = new CopyMapper();
    StubContext stubContext = new StubContext(getConfiguration(), null, 0);
    Mapper<Text, CopyListingFileStatus, Text, Text>.Context context
        = stubContext.getContext();

    Configuration configuration = context.getConfiguration();
    EnumSet<DistCpOptions.FileAttribute> fileAttributes
        = EnumSet.noneOf(DistCpOptions.FileAttribute.class);
    configuration.set(DistCpOptionSwitch.PRESERVE_STATUS.getConfigLabel(),
        DistCpUtils.packAttributes(fileAttributes));

    copyMapper.setup(context);

    for (Path path : pathList) {
      final FileStatus fileStatus = fs.getFileStatus(path);
      copyMapper.map(new Text(DistCpUtils.getRelativePath(new Path(SOURCE_PATH), path)),
          new CopyListingFileStatus(fileStatus), context);
    }

    Assert.fail("Copy should have failed because of block-size difference.");
  }
  catch (Exception exception) {
    // Check that the exception suggests the use of -pb/-skipCrc.
    Assert.assertTrue("Failure exception should have suggested the use of -pb.", exception.getCause().getCause().getMessage().contains("pb"));
    Assert.assertTrue("Failure exception should have suggested the use of -skipCrc.", exception.getCause().getCause().getMessage().contains("skipCrc"));
  }
}
开发者ID:naver，项目名称:hadoop，代码行数:36，代码来源:TestCopyMapper.java

示例5: testCopyFailOnBlockSizeDifference

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
@Test(timeout=40000)
public void testCopyFailOnBlockSizeDifference() {
  try {

    deleteState();
    createSourceDataWithDifferentBlockSize();

    FileSystem fs = cluster.getFileSystem();
    CopyMapper copyMapper = new CopyMapper();
    StubContext stubContext = new StubContext(getConfiguration(), null, 0);
    Mapper<Text, FileStatus, Text, Text>.Context context
        = stubContext.getContext();

    Configuration configuration = context.getConfiguration();
    EnumSet<DistCpOptions.FileAttribute> fileAttributes
        = EnumSet.noneOf(DistCpOptions.FileAttribute.class);
    configuration.set(DistCpOptionSwitch.PRESERVE_STATUS.getConfigLabel(),
        DistCpUtils.packAttributes(fileAttributes));

    copyMapper.setup(context);

    for (Path path : pathList) {
      final FileStatus fileStatus = fs.getFileStatus(path);
      copyMapper.map(new Text(DistCpUtils.getRelativePath(new Path(SOURCE_PATH), path)),
          fileStatus, context);
    }

    Assert.fail("Copy should have failed because of block-size difference.");
  }
  catch (Exception exception) {
    // Check that the exception suggests the use of -pb/-skipCrc.
    Assert.assertTrue("Failure exception should have suggested the use of -pb.", exception.getCause().getCause().getMessage().contains("pb"));
    Assert.assertTrue("Failure exception should have suggested the use of -skipCrc.", exception.getCause().getCause().getMessage().contains("skipCrc"));
  }
}
开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:36，代码来源:TestCopyMapper.java

示例6: testCopyFailOnBlockSizeDifference

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
@Test(timeout=40000)
public void testCopyFailOnBlockSizeDifference() {
  try {
    deleteState();
    createSourceDataWithDifferentBlockSize();

    FileSystem fs = cluster.getFileSystem();
    CopyMapper copyMapper = new CopyMapper();
    StubContext stubContext = new StubContext(getConfiguration(), null, 0);
    Mapper<Text, CopyListingFileStatus, Text, Text>.Context context
        = stubContext.getContext();

    Configuration configuration = context.getConfiguration();
    EnumSet<DistCpOptions.FileAttribute> fileAttributes
        = EnumSet.noneOf(DistCpOptions.FileAttribute.class);
    configuration.set(DistCpOptionSwitch.PRESERVE_STATUS.getConfigLabel(),
        DistCpUtils.packAttributes(fileAttributes));

    copyMapper.setup(context);

    for (Path path : pathList) {
      final FileStatus fileStatus = fs.getFileStatus(path);
      copyMapper.map(new Text(DistCpUtils.getRelativePath(new Path(SOURCE_PATH),
          path)), new CopyListingFileStatus(fileStatus), context);
    }

    Assert.fail("Copy should have failed because of block-size difference.");
  }
  catch (Exception exception) {
    // Check that the exception suggests the use of -pb/-skipCrc.
    Assert.assertTrue("Failure exception should have suggested the use of -pb.",
        exception.getCause().getCause().getMessage().contains("pb"));
    Assert.assertTrue("Failure exception should have suggested the use of -skipCrc.",
        exception.getCause().getCause().getMessage().contains("skipCrc"));
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:37，代码来源:TestCopyMapper.java

示例7: map

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper::map(). Does the copy.
 * @param relPath The target path.
 * @param sourceFileStatus The source path.
 * @throws IOException
 * @throws InterruptedException
 */
@Override
public void map(Text relPath, CopyListingFileStatus sourceFileStatus,
        Context context) throws IOException, InterruptedException {
  Path sourcePath = sourceFileStatus.getPath();

  if (LOG.isDebugEnabled())
    LOG.debug("DistCpMapper::map(): Received " + sourcePath + ", " + relPath);

  Path target = new Path(targetWorkPath.makeQualified(targetFS.getUri(),
                        targetFS.getWorkingDirectory()) + relPath.toString());

  EnumSet<DistCpOptions.FileAttribute> fileAttributes
          = getFileAttributeSettings(context);
  final boolean preserveRawXattrs = context.getConfiguration().getBoolean(
      DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);

  final String description = "Copying " + sourcePath + " to " + target;
  context.setStatus(description);

  LOG.info(description);

  try {
    CopyListingFileStatus sourceCurrStatus;
    FileSystem sourceFS;
    try {
      sourceFS = sourcePath.getFileSystem(conf);
      final boolean preserveXAttrs =
          fileAttributes.contains(FileAttribute.XATTR);
      sourceCurrStatus = DistCpUtils.toCopyListingFileStatus(sourceFS,
        sourceFS.getFileStatus(sourcePath),
        fileAttributes.contains(FileAttribute.ACL), 
        preserveXAttrs, preserveRawXattrs);
    } catch (FileNotFoundException e) {
      throw new IOException(new RetriableFileCopyCommand.CopyReadException(e));
    }

    FileStatus targetStatus = null;

    try {
      targetStatus = targetFS.getFileStatus(target);
    } catch (FileNotFoundException ignore) {
      if (LOG.isDebugEnabled())
        LOG.debug("Path could not be found: " + target, ignore);
    }

    if (targetStatus != null && (targetStatus.isDirectory() != sourceCurrStatus.isDirectory())) {
      throw new IOException("Can't replace " + target + ". Target is " +
          getFileType(targetStatus) + ", Source is " + getFileType(sourceCurrStatus));
    }

    if (sourceCurrStatus.isDirectory()) {
      createTargetDirsWithRetry(description, target, context);
      return;
    }

    FileAction action = checkUpdate(sourceFS, sourceCurrStatus, target);
    if (action == FileAction.SKIP) {
      LOG.info("Skipping copy of " + sourceCurrStatus.getPath()
               + " to " + target);
      updateSkipCounters(context, sourceCurrStatus);
      context.write(null, new Text("SKIP: " + sourceCurrStatus.getPath()));
    } else {
      copyFileWithRetry(description, sourceCurrStatus, target, context,
          action, fileAttributes);
    }

    DistCpUtils.preserve(target.getFileSystem(conf), target, sourceCurrStatus,
        fileAttributes, preserveRawXattrs);
  } catch (IOException exception) {
    handleFailures(exception, sourceFileStatus, target, context);
  }
}
开发者ID:naver，项目名称:hadoop，代码行数:80，代码来源:CopyMapper.java

示例8: getFileAttributeSettings

import org.apache.hadoop.tools.DistCpOptions; //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9: testCopy

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
private void testCopy(boolean preserveChecksum) throws Exception {
  deleteState();
  if (preserveChecksum) {
    createSourceDataWithDifferentChecksumType();
  } else {
    createSourceData();
  }

  FileSystem fs = cluster.getFileSystem();
  CopyMapper copyMapper = new CopyMapper();
  StubContext stubContext = new StubContext(getConfiguration(), null, 0);
  Mapper<Text, CopyListingFileStatus, Text, Text>.Context context
          = stubContext.getContext();

  Configuration configuration = context.getConfiguration();
  EnumSet<DistCpOptions.FileAttribute> fileAttributes
          = EnumSet.of(DistCpOptions.FileAttribute.REPLICATION);
  if (preserveChecksum) {
    fileAttributes.add(DistCpOptions.FileAttribute.CHECKSUMTYPE);
  }
  configuration.set(DistCpOptionSwitch.PRESERVE_STATUS.getConfigLabel(),
          DistCpUtils.packAttributes(fileAttributes));

  copyMapper.setup(context);

  for (Path path: pathList) {
    copyMapper.map(
        new Text(DistCpUtils.getRelativePath(new Path(SOURCE_PATH), path)),
        new CopyListingFileStatus(fs.getFileStatus(path)), context);
  }

  // Check that the maps worked.
  verifyCopy(fs, preserveChecksum);
  Assert.assertEquals(pathList.size(), stubContext.getReporter()
      .getCounter(CopyMapper.Counter.COPY).getValue());
  if (!preserveChecksum) {
    Assert.assertEquals(nFiles * DEFAULT_FILE_SIZE, stubContext
        .getReporter().getCounter(CopyMapper.Counter.BYTESCOPIED)
        .getValue());
  } else {
    Assert.assertEquals(nFiles * NON_DEFAULT_BLOCK_SIZE * 2, stubContext
        .getReporter().getCounter(CopyMapper.Counter.BYTESCOPIED)
        .getValue());
  }

  testCopyingExistingFiles(fs, copyMapper, context);
  for (Text value : stubContext.getWriter().values()) {
    Assert.assertTrue(value.toString() + " is not skipped", value
        .toString().startsWith("SKIP:"));
  }
}
开发者ID:naver，项目名称:hadoop，代码行数:52，代码来源:TestCopyMapper.java

示例10: map

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper<>::map(). Does the copy.
 * @param relPath The target path.
 * @param sourceFileStatus The source path.
 * @throws IOException
 */
@Override
public void map(Text relPath, CopyListingFileStatus sourceFileStatus,
        Context context) throws IOException, InterruptedException {
  Path sourcePath = sourceFileStatus.getPath();

  if (LOG.isDebugEnabled())
    LOG.debug("DistCpMapper::map(): Received " + sourcePath + ", " + relPath);

  Path target = new Path(targetWorkPath.makeQualified(targetFS.getUri(),
                        targetFS.getWorkingDirectory()) + relPath.toString());

  EnumSet<DistCpOptions.FileAttribute> fileAttributes
          = getFileAttributeSettings(context);
  final boolean preserveRawXattrs = context.getConfiguration().getBoolean(
      DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);

  final String description = "Copying " + sourcePath + " to " + target;
  context.setStatus(description);

  LOG.info(description);

  try {
    CopyListingFileStatus sourceCurrStatus;
    FileSystem sourceFS;
    try {
      sourceFS = sourcePath.getFileSystem(conf);
      final boolean preserveXAttrs =
          fileAttributes.contains(FileAttribute.XATTR);
      sourceCurrStatus = DistCpUtils.toCopyListingFileStatus(sourceFS,
        sourceFS.getFileStatus(sourcePath),
        fileAttributes.contains(FileAttribute.ACL), 
        preserveXAttrs, preserveRawXattrs);
    } catch (FileNotFoundException e) {
      throw new IOException(new RetriableFileCopyCommand.CopyReadException(e));
    }

    FileStatus targetStatus = null;

    try {
      targetStatus = targetFS.getFileStatus(target);
    } catch (FileNotFoundException ignore) {
      if (LOG.isDebugEnabled())
        LOG.debug("Path could not be found: " + target, ignore);
    }

    if (targetStatus != null && (targetStatus.isDirectory() != sourceCurrStatus.isDirectory())) {
      throw new IOException("Can't replace " + target + ". Target is " +
          getFileType(targetStatus) + ", Source is " + getFileType(sourceCurrStatus));
    }

    if (sourceCurrStatus.isDirectory()) {
      createTargetDirsWithRetry(description, target, context);
      return;
    }

    FileAction action = checkUpdate(sourceFS, sourceCurrStatus, target);
    if (action == FileAction.SKIP) {
      LOG.info("Skipping copy of " + sourceCurrStatus.getPath()
               + " to " + target);
      updateSkipCounters(context, sourceCurrStatus);
      context.write(null, new Text("SKIP: " + sourceCurrStatus.getPath()));
    } else {
      copyFileWithRetry(description, sourceCurrStatus, target, context,
          action, fileAttributes);
    }

    DistCpUtils.preserve(target.getFileSystem(conf), target, sourceCurrStatus,
        fileAttributes, preserveRawXattrs);
  } catch (IOException exception) {
    handleFailures(exception, sourceFileStatus, target, context);
  }
}
开发者ID:Nextzero，项目名称:hadoop-2.6.0-cdh5.4.3，代码行数:79，代码来源:CopyMapper.java

示例11: map

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper<>::map(). Does the copy.
 * @param relPath The target path.
 * @param sourceFileStatus The source path.
 * @throws IOException
 */
@Override
public void map(Text relPath, FileStatus sourceFileStatus, Context context)
        throws IOException, InterruptedException {
  Path sourcePath = sourceFileStatus.getPath();

  if (LOG.isDebugEnabled())
    LOG.debug("DistCpMapper::map(): Received " + sourcePath + ", " + relPath);

  Path target = new Path(targetWorkPath.makeQualified(targetFS.getUri(),
                        targetFS.getWorkingDirectory()) + relPath.toString());

  EnumSet<DistCpOptions.FileAttribute> fileAttributes
          = getFileAttributeSettings(context);

  final String description = "Copying " + sourcePath + " to " + target;
  context.setStatus(description);

  LOG.info(description);

  try {
    FileStatus sourceCurrStatus;
    FileSystem sourceFS;
    try {
      sourceFS = sourcePath.getFileSystem(conf);
      sourceCurrStatus = sourceFS.getFileStatus(sourcePath);
    } catch (FileNotFoundException e) {
      throw new IOException(new RetriableFileCopyCommand.CopyReadException(e));
    }

    FileStatus targetStatus = null;

    try {
      targetStatus = targetFS.getFileStatus(target);
    } catch (FileNotFoundException ignore) {
      if (LOG.isDebugEnabled())
        LOG.debug("Path could not be found: " + target, ignore);
    }

    if (targetStatus != null && (targetStatus.isDirectory() != sourceCurrStatus.isDirectory())) {
      throw new IOException("Can't replace " + target + ". Target is " +
          getFileType(targetStatus) + ", Source is " + getFileType(sourceCurrStatus));
    }

    if (sourceCurrStatus.isDirectory()) {
      createTargetDirsWithRetry(description, target, context);
      return;
    }

    if (skipFile(sourceFS, sourceCurrStatus, target)) {
      LOG.info("Skipping copy of " + sourceCurrStatus.getPath()
               + " to " + target);
      updateSkipCounters(context, sourceCurrStatus);
      context.write(null, new Text("SKIP: " + sourceCurrStatus.getPath()));
    }
    else {
      copyFileWithRetry(description, sourceCurrStatus, target, context,
                        fileAttributes);
    }

    DistCpUtils.preserve(target.getFileSystem(conf), target,
                         sourceCurrStatus, fileAttributes);

  } catch (IOException exception) {
    handleFailures(exception, sourceFileStatus, target, context);
  }
}
开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:73，代码来源:CopyMapper.java

示例12: map

import org.apache.hadoop.tools.DistCpOptions; //导入方法依赖的package包/类
/**
 * Implementation of the Mapper::map(). Does the copy.
 * @param relPath The target path.
 * @param sourceFileStatus The source path.
 * @throws IOException
 * @throws InterruptedException
 */
@Override
public void map(Text relPath, CopyListingFileStatus sourceFileStatus,
        Context context) throws IOException, InterruptedException {
  Path sourcePath = sourceFileStatus.getPath();

  if (LOG.isDebugEnabled())
    LOG.debug("DistCpMapper::map(): Received " + sourcePath + ", " + relPath);

  Path target = new Path(targetWorkPath.makeQualified(targetFS.getUri(),
                        targetFS.getWorkingDirectory()) + relPath.toString());

  EnumSet<DistCpOptions.FileAttribute> fileAttributes
          = getFileAttributeSettings(context);
  final boolean preserveRawXattrs = context.getConfiguration().getBoolean(
      DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);

  final String description = "Copying " + sourcePath + " to " + target;
  context.setStatus(description);

  LOG.info(description);

  try {
    CopyListingFileStatus sourceCurrStatus;
    FileSystem sourceFS;
    try {
      sourceFS = sourcePath.getFileSystem(conf);
      final boolean preserveXAttrs =
          fileAttributes.contains(FileAttribute.XATTR);
      sourceCurrStatus = DistCpUtils.toCopyListingFileStatus(sourceFS,
        sourceFS.getFileStatus(sourcePath),
        fileAttributes.contains(FileAttribute.ACL), 
        preserveXAttrs, preserveRawXattrs);
    } catch (FileNotFoundException e) {
      throw new IOException(new RetriableFileCopyCommand.CopyReadException(e));
    }

    FileStatus targetStatus = null;

    try {
      targetStatus = targetFS.getFileStatus(target);
    } catch (FileNotFoundException ignore) {
      if (LOG.isDebugEnabled())
        LOG.debug("Path could not be found: " + target, ignore);
    }

    if (targetStatus != null && (targetStatus.isDirectory() != sourceCurrStatus.isDirectory())) {
      throw new IOException("Can't replace " + target + ". Target is " +
          getFileType(targetStatus) + ", Source is " + getFileType(sourceCurrStatus));
    }

    if (sourceCurrStatus.isDirectory()) {
      createTargetDirsWithRetry(description, target, context);
      return;
    }

    FileAction action = checkUpdate(sourceFS, sourceCurrStatus, target, targetStatus);
    if (action == FileAction.SKIP) {
      LOG.info("Skipping copy of " + sourceCurrStatus.getPath()
               + " to " + target);
      updateSkipCounters(context, sourceCurrStatus);
      context.write(null, new Text("SKIP: " + sourceCurrStatus.getPath()));
    } else {
      copyFileWithRetry(description, sourceCurrStatus, target, context,
          action, fileAttributes);
    }

    DistCpUtils.preserve(target.getFileSystem(conf), target, sourceCurrStatus,
        fileAttributes, preserveRawXattrs);
  } catch (IOException exception) {
    handleFailures(exception, sourceFileStatus, target, context);
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:80，代码来源:CopyMapper.java


注：本文中的org.apache.hadoop.tools.DistCpOptions.FileAttribute方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。