Package org.apache.hadoop.hdfs

Examples of org.apache.hadoop.hdfs.DistributedFileSystem.rename()

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      fs.rename(testFileInodePath, renameDst);
      fs.rename(renameDst, testFileInodePath);
      assertEquals(fileStatus, fs.getFileStatus(testFileInodePath));
     
      // Rename variant 2: rename and rename bacck
      fs.rename(testFileInodePath, renameDst, Rename.OVERWRITE);
      fs.rename(renameDst, testFileInodePath, Rename.OVERWRITE);
      assertEquals(fileStatus, fs.getFileStatus(testFileInodePath));
     
      // FileSystem#getContentSummary
      assertEquals(fs.getContentSummary(testFileRegularPath).toString(),
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      fs.rename(renameDst, testFileInodePath);
      assertEquals(fileStatus, fs.getFileStatus(testFileInodePath));
     
      // Rename variant 2: rename and rename bacck
      fs.rename(testFileInodePath, renameDst, Rename.OVERWRITE);
      fs.rename(renameDst, testFileInodePath, Rename.OVERWRITE);
      assertEquals(fileStatus, fs.getFileStatus(testFileInodePath));
     
      // FileSystem#getContentSummary
      assertEquals(fs.getContentSummary(testFileRegularPath).toString(),
          fs.getContentSummary(testFileInodePath).toString());
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      assertTrue(dirNode.isWithQuota());
     
      final Path newDir = new Path("/newdir");
      final Path newFile = new Path(newDir, "file");
      // Also rename dir
      dfs.rename(dir, newDir, Options.Rename.OVERWRITE);
      // /dir/file now should be renamed to /newdir/file
      fnode = fsdir.getINode(newFile.toString());
      // getFullPathName can return correct result only if the parent field of
      // child node is set correctly
      assertEquals(newFile.toString(), fnode.getFullPathName());
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    FSDataOutputStream s = dfs.create(pathFileCreate);
    // OP_CLOSE 9
    s.close();
    // OP_RENAME_OLD 1
    Path pathFileMoved = new Path("/file_moved");
    dfs.rename(pathFileCreate, pathFileMoved);
    // OP_DELETE 2
    dfs.delete(pathFileMoved, false);
    // OP_MKDIR 3
    Path pathDirectoryMkdir = new Path("/directory_mkdir");
    dfs.mkdirs(pathDirectoryMkdir);
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    DistributedFileSystem fs = (DistributedFileSystem) cluster.getFileSystem();
    OutputStream out = null;
    try {
      fs.mkdirs(new Path("/test-target"));
      out = fs.create(new Path("/test-source/foo")); // don't close
      fs.rename(new Path("/test-source/"), new Path("/test-target/"));

      fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
      cluster.getNameNodeRpc().saveNamespace();
      fs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);
    } finally {
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      }
      assertTrue(hasException);

      // 9: Move /nqdir0/qdir1/qdir21/nqdir32 /nqdir0/qdir1/qdir20/nqdir30
      tempPath = new Path(quotaDir2, "nqdir30");
      dfs.rename(new Path(quotaDir3, "nqdir32"), tempPath);
      c = dfs.getContentSummary(quotaDir2);
      assertEquals(c.getDirectoryCount(), 4);
      assertEquals(c.getQuota(), 7);
      c = dfs.getContentSummary(quotaDir1);
      assertEquals(c.getDirectoryCount(), 6);
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      assertEquals(c.getQuota(), 6);

      // 10: Move /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0/qdir1/qdir21
      hasException = false;
      try {
        assertFalse(dfs.rename(tempPath, quotaDir3));
      } catch (NSQuotaExceededException e) {
        hasException = true;
      }
      assertTrue(hasException);
      assertTrue(dfs.exists(tempPath));
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      assertFalse(dfs.exists(new Path(quotaDir3, "nqdir30")));
     
      // 10.a: Rename /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0/qdir1/qdir21/nqdir32
      hasException = false;
      try {
        assertFalse(dfs.rename(tempPath, new Path(quotaDir3, "nqdir32")));
      } catch (QuotaExceededException e) {
        hasException = true;
      }
      assertTrue(hasException);
      assertTrue(dfs.exists(tempPath));
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      assertTrue(hasException);
      assertTrue(dfs.exists(tempPath));
      assertFalse(dfs.exists(new Path(quotaDir3, "nqdir32")));

      // 11: Move /nqdir0/qdir1/qdir20/nqdir30 to /nqdir0
      assertTrue(dfs.rename(tempPath, new Path("/nqdir0")));
      c = dfs.getContentSummary(quotaDir2);
      assertEquals(c.getDirectoryCount(), 2);
      assertEquals(c.getQuota(), 7);
      c = dfs.getContentSummary(quotaDir1);
      assertEquals(c.getDirectoryCount(), 4);
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      assertTrue(dfs.mkdirs(new Path("/nqdir0/nqdir30/nqdir33")));

      // 13: Move /nqdir0/nqdir30 /nqdir0/qdir1/qdir20/qdir30
      hasException = false;
      try {
        assertFalse(dfs.rename(new Path("/nqdir0/nqdir30"), tempPath));
      } catch (NSQuotaExceededException e) {
        hasException = true;
      }
      assertTrue(hasException);
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