Examples of org.apache.hadoop.fs.viewfs.ChRootedFs

org.apache.hadoop.fs.viewfs.ChRootedFs
with chRoot at /usr/foo, the members will be setup as shown below.
- myFs is the base file system and points to hdfs at nn1
- myURI is hdfs://nn1/user/foo
- chRootPathPart is /user/foo
- workingDir is a directory related to chRoot
The paths are resolved as follows by ChRootedFileSystem:
- Absolute path /a/b/c is resolved to /user/foo/a/b/c at myFs
- Relative path x/y is resolved to /user/foo//x/y


    Configuration conf = new Configuration();


    // ChRoot to the root of the testDirectory
    fc = FileContext.getFileContext(
        new ChRootedFs(fcTarget.getDefaultFileSystem(), chrootedTo), conf);
  }

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  }
 
  @Test
  public void testIsValidNameValidInBaseFs() throws Exception {
    AbstractFileSystem baseFs = Mockito.spy(fc.getDefaultFileSystem());
    ChRootedFs chRootedFs = new ChRootedFs(baseFs, new Path("/chroot"));
    Mockito.doReturn(true).when(baseFs).isValidName(Mockito.anyString());
    Assert.assertTrue(chRootedFs.isValidName("/test"));
    Mockito.verify(baseFs).isValidName("/chroot/test");
  }

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  }


  @Test
  public void testIsValidNameInvalidInBaseFs() throws Exception {
    AbstractFileSystem baseFs = Mockito.spy(fc.getDefaultFileSystem());
    ChRootedFs chRootedFs = new ChRootedFs(baseFs, new Path("/chroot"));
    Mockito.doReturn(false).when(baseFs).isValidName(Mockito.anyString());
    Assert.assertFalse(chRootedFs.isValidName("/test"));
    Mockito.verify(baseFs).isValidName("/chroot/test");
  }

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    Configuration conf = new Configuration();


    // ChRoot to the root of the testDirectory
    fc = FileContext.getFileContext(
        new ChRootedFs(fcTarget.getDefaultFileSystem(), chrootedTo), conf);
  }

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    Configuration conf = new Configuration();


    // ChRoot to the root of the testDirectory
    fc = FileContext.getFileContext(
        new ChRootedFs(fcTarget.getDefaultFileSystem(), chrootedTo), conf);
  }

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org.apache.hadoop.fs.Path

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