Java 类org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewer 实例源码

/**
 * Test if the OfflineImageViewer can correctly parse a fsimage containing
 * snapshots
 */
@Test
public void testOfflineImageViewer() throws Throwable {
  runTestSnapshot(SNAPSHOT_ITERATION_NUMBER);

  // retrieve the fsimage. Note that we already save namespace to fsimage at
  // the end of each iteration of runTestSnapshot.
  File originalFsimage = FSImageTestUtil.findLatestImageFile(
      FSImageTestUtil.getFSImage(
      cluster.getNameNode()).getStorage().getStorageDir(0));
  assertNotNull("Didn't generate or can't find fsimage", originalFsimage);

  String ROOT = System.getProperty("test.build.data", "build/test/data");
  File testFile = new File(ROOT, "/image");
  String xmlImage = ROOT + "/image_xml";
  boolean success = false;

  try {
    DFSTestUtil.copyFile(originalFsimage, testFile);
    XmlImageVisitor v = new XmlImageVisitor(xmlImage, true);
    OfflineImageViewer oiv = new OfflineImageViewer(testFile.getPath(), v,
        true);
    oiv.go();
    success = true;
  } finally {
    if (testFile.exists()) {
      testFile.delete();
    }
    // delete the xml file if the parsing is successful
    if (success) {
      File xmlImageFile = new File(xmlImage);
      if (xmlImageFile.exists()) {
        xmlImageFile.delete();
      }
    }
  }
}

/**
 * Test if the OfflineImageViewer can correctly parse a fsimage containing
 * snapshots
 */
@Test
public void testOfflineImageViewer() throws Throwable {
  runTestSnapshot(SNAPSHOT_ITERATION_NUMBER);

  // retrieve the fsimage. Note that we already save namespace to fsimage at
  // the end of each iteration of runTestSnapshot.
  File originalFsimage = FSImageTestUtil.findLatestImageFile(
      FSImageTestUtil.getFSImage(
      cluster.getNameNode()).getStorage().getStorageDir(0));
  assertNotNull("Didn't generate or can't find fsimage", originalFsimage);

  String ROOT = System.getProperty("test.build.data", "build/test/data");
  File testFile = new File(ROOT, "/image");
  String xmlImage = ROOT + "/image_xml";
  boolean success = false;

  try {
    DFSTestUtil.copyFile(originalFsimage, testFile);
    XmlImageVisitor v = new XmlImageVisitor(xmlImage, true);
    OfflineImageViewer oiv = new OfflineImageViewer(testFile.getPath(), v,
        true);
    oiv.go();
    success = true;
  } finally {
    if (testFile.exists()) {
      testFile.delete();
    }
    // delete the xml file if the parsing is successful
    if (success) {
      File xmlImageFile = new File(xmlImage);
      if (xmlImageFile.exists()) {
        xmlImageFile.delete();
      }
    }
  }
}

/**
 * Test if the OfflineImageViewer can correctly parse a fsimage containing
 * snapshots
 */
@Test
public void testOfflineImageViewer() throws Throwable {
  runTestSnapshot(SNAPSHOT_ITERATION_NUMBER);

  // retrieve the fsimage. Note that we already save namespace to fsimage at
  // the end of each iteration of runTestSnapshot.
  File originalFsimage = FSImageTestUtil.findLatestImageFile(
      FSImageTestUtil.getFSImage(
      cluster.getNameNode()).getStorage().getStorageDir(0));
  assertNotNull("Didn't generate or can't find fsimage", originalFsimage);

  String ROOT = System.getProperty("test.build.data", "build/test/data");
  File testFile = new File(ROOT, "/image");
  String xmlImage = ROOT + "/image_xml";
  boolean success = false;

  try {
    DFSTestUtil.copyFile(originalFsimage, testFile);
    XmlImageVisitor v = new XmlImageVisitor(xmlImage, true);
    OfflineImageViewer oiv = new OfflineImageViewer(testFile.getPath(), v,
        true);
    oiv.go();
    success = true;
  } finally {
    if (testFile.exists()) {
      testFile.delete();
    }
    // delete the xml file if the parsing is successful
    if (success) {
      File xmlImageFile = new File(xmlImage);
      if (xmlImageFile.exists()) {
        xmlImageFile.delete();
      }
    }
  }
}

private ImageValidator(File imageFile) throws IOException {
  LOG.info("Validating image file " + imageFile);
  tmpImageFileForValidation.delete();
  LsImageVisitor v = new LsImageVisitor(tmpImageFileForValidation.toString());
  viewer = new OfflineImageViewer(imageFile.toString(), v, true);
}

private ImageValidator(File imageFile) throws IOException {
  LOG.info("Validating image file " + imageFile);
  tmpImageFileForValidation.delete();
  LsImageVisitor v = new LsImageVisitor(tmpImageFileForValidation.toString());
  viewer = new OfflineImageViewer(imageFile.toString(), v, true);
}