本文整理匯總了Java中org.apache.hadoop.hdfs.tools.offlineImageViewer.XmlImageVisitor類的典型用法代碼示例。如果您正苦於以下問題：Java XmlImageVisitor類的具體用法？Java XmlImageVisitor怎麽用？Java XmlImageVisitor使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
XmlImageVisitor類屬於org.apache.hadoop.hdfs.tools.offlineImageViewer包，在下文中一共展示了XmlImageVisitor類的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: testOfflineImageViewer
import org.apache.hadoop.hdfs.tools.offlineImageViewer.XmlImageVisitor; //導入依賴的package包/類
/**
* 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();
}
}
}
}