How to use

getGroup

method

in

alluxio.wire.FileInfo

/**
 * @return the group that owns the entity referenced by this uri, mutable
 */
public String getGroup() {
 return mInfo.getGroup();
}

OutputStream outputStream = ufs.create(dstPath,
  CreateOptions.defaults(ServerConfiguration.global())
  .setOwner(fileInfo.getOwner()).setGroup(fileInfo.getGroup())
  .setMode(new Mode((short) fileInfo.getMode())));
final WritableByteChannel outputChannel = Channels.newChannel(outputStream);

 private void assertFileInfoEqualsFileStatus(FileInfo info, FileStatus status) {
  assertEquals(info.getOwner(), status.getOwner());
  assertEquals(info.getGroup(), status.getGroup());
  assertEquals(info.getMode(), status.getPermission().toShort());
  assertEquals(info.getLastModificationTimeMs(), status.getModificationTime());
  assertEquals(info.isFolder(), status.isDir());
 }
}

@Test
public void setGroupSuccess() throws Exception {
 // super user
 verifySetAcl(TEST_USER_ADMIN, TEST_FILE_URI, null, TEST_USER_1.getGroup(), (short) -1, false);
 // super group
 verifySetAcl(TEST_USER_SUPERGROUP, TEST_DIR_URI, null, TEST_USER_2.getGroup(), (short) -1,
   true);
 FileInfo fileInfo = mFileSystemMaster
   .getFileInfo(mFileSystemMaster.getFileId(new AlluxioURI(TEST_DIR_FILE_URI)));
 assertEquals(TEST_USER_2.getGroup(), fileInfo.getGroup());
 // owner
 verifySetAcl(TEST_USER_1, TEST_DIR_URI, null, TEST_USER_2.getGroup(), (short) -1, true);
 fileInfo = mFileSystemMaster
   .getFileInfo(mFileSystemMaster.getFileId(new AlluxioURI(TEST_DIR_FILE_URI)));
 assertEquals(TEST_USER_2.getGroup(), fileInfo.getGroup());
}

@Test
public void setAclSuccess() throws Exception {
 // super user sets owner, group, and permission
 verifySetAcl(TEST_USER_ADMIN, TEST_FILE_URI, TEST_USER_1.getUser(), TEST_USER_1.getGroup(),
   (short) 0600, false);
 // owner sets group and permission
 verifySetAcl(TEST_USER_1, TEST_DIR_URI, null, TEST_USER_2.getGroup(), (short) 0777, true);
 FileInfo fileInfo = mFileSystemMaster
   .getFileInfo(mFileSystemMaster.getFileId(new AlluxioURI(TEST_DIR_FILE_URI)));
 assertEquals(TEST_USER_2.getGroup(), fileInfo.getGroup());
 assertEquals((short) 0777, fileInfo.getMode());
}

.addAllBlockIds(fileInfo.getBlockIds())
.setLastModificationTimeMs(fileInfo.getLastModificationTimeMs()).setTtl(fileInfo.getTtl())
.setOwner(fileInfo.getOwner()).setGroup(fileInfo.getGroup()).setMode(fileInfo.getMode())
.setPersistenceState(fileInfo.getPersistenceState()).setMountPoint(fileInfo.isMountPoint())
.addAllFileBlockInfos(fileBlockInfos)

private void verifySetAcl(TestUser runUser, String path, String owner, String group,
  short mode, boolean recursive) throws Exception {
 try (Closeable r = new AuthenticatedUserRule(runUser.getUser(),
   ServerConfiguration.global()).toResource()) {
  SetAttributeContext context = SetAttributeContext.defaults(SetAttributePOptions.newBuilder()
    .setMode(new Mode(mode).toProto()).setRecursive(recursive));
  if (owner != null) {
   context.getOptions().setOwner(owner);
  }
  if (group != null) {
   context.getOptions().setGroup(group);
  }
  mFileSystemMaster.setAttribute(new AlluxioURI(path), context);
 }
 try (Closeable r = new AuthenticatedUserRule(TEST_USER_ADMIN.getUser(),
   ServerConfiguration.global()).toResource()) {
  FileInfo fileInfo =
    mFileSystemMaster.getFileInfo(mFileSystemMaster.getFileId(new AlluxioURI(path)));
  if (owner != null) {
   assertEquals(owner, fileInfo.getOwner());
  }
  if (group != null) {
   assertEquals(group, fileInfo.getGroup());
  }
  if (mode != -1) {
   assertEquals(mode, fileInfo.getMode());
  }
 }
}

Assert.assertEquals(a.getFileBlockInfos(), b.getFileBlockInfos());
Assert.assertEquals(a.getFileId(), b.getFileId());
Assert.assertEquals(a.getGroup(), b.getGroup());
Assert.assertEquals(a.getLastModificationTimeMs(), b.getLastModificationTimeMs());
Assert.assertEquals(a.getLength(), b.getLength());

/**
 * @return the group that owns the entity referenced by this uri, mutable
 */
public String getGroup() {
 return mInfo.getGroup();
}

  fileInfo.getCreationTimeMs());
Assert.assertEquals(uriStatus.getFileId(), fileInfo.getFileId());
Assert.assertEquals(uriStatus.getGroup(), fileInfo.getGroup());
Assert.assertEquals(uriStatus.getInMemoryPercentage(),
  fileInfo.getInMemoryPercentage());