Example usage for org.apache.hadoop.fs.permission AclStatus getOwner

Introduction

In this page you can find the example usage for org.apache.hadoop.fs.permission AclStatus getOwner.

Prototype

public String getOwner() 

Source Link

Document

Returns the file owner.

Usage

From source file:alluxio.underfs.hdfs.acl.SupportedHdfsAclProvider.java

License:Apache License

@Override
public Pair<AccessControlList, DefaultAccessControlList> getAcl(FileSystem hdfs, String path)
        throws IOException {
    AclStatus hdfsAcl;
    Path filePath = new Path(path);
    boolean isDir = hdfs.isDirectory(filePath);
    try {/*from  ww w. j a  v a  2 s  . c o  m*/
        hdfsAcl = hdfs.getAclStatus(filePath);
    } catch (AclException e) {
        // When dfs.namenode.acls.enabled is false, getAclStatus throws AclException.
        return new Pair<>(null, null);
    }
    AccessControlList acl = new AccessControlList();
    DefaultAccessControlList defaultAcl = new DefaultAccessControlList();

    acl.setOwningUser(hdfsAcl.getOwner());
    acl.setOwningGroup(hdfsAcl.getGroup());
    defaultAcl.setOwningUser(hdfsAcl.getOwner());
    defaultAcl.setOwningGroup(hdfsAcl.getGroup());
    for (AclEntry entry : hdfsAcl.getEntries()) {
        alluxio.security.authorization.AclEntry.Builder builder = new alluxio.security.authorization.AclEntry.Builder();
        builder.setType(getAclEntryType(entry));
        builder.setSubject(entry.getName() == null ? "" : entry.getName());
        FsAction permission = entry.getPermission();
        if (permission.implies(FsAction.READ)) {
            builder.addAction(AclAction.READ);
        } else if (permission.implies(FsAction.WRITE)) {
            builder.addAction(AclAction.WRITE);
        } else if (permission.implies(FsAction.EXECUTE)) {
            builder.addAction(AclAction.EXECUTE);
        }
        if (entry.getScope().equals(AclEntryScope.ACCESS)) {
            acl.setEntry(builder.build());
        } else {
            // default ACL, must be a directory
            defaultAcl.setEntry(builder.build());
        }
    }
    if (isDir) {
        return new Pair<>(acl, defaultAcl);
    } else {
        // a null defaultACL indicates this is a file
        return new Pair<>(acl, null);
    }
}

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From source file:com.bigstep.datalake.JsonUtil.java

License:Apache License

/** Convert a AclStatus object to a Json string. */
public static String toJsonString(final AclStatus status) {
    if (status == null) {
        return null;
    }/*from   ww  w  .  jav a 2 s.c om*/

    final Map<String, Object> m = new TreeMap<String, Object>();
    m.put("owner", status.getOwner());
    m.put("group", status.getGroup());
    m.put("stickyBit", status.isStickyBit());

    final List<String> stringEntries = new ArrayList<>();
    for (AclEntry entry : status.getEntries()) {
        stringEntries.add(entry.toString());
    }
    m.put("entries", stringEntries);

    FsPermission perm = status.getPermission();
    if (perm != null) {
        m.put("permission", toString(perm));
        if (perm.getAclBit()) {
            m.put("aclBit", true);
        }
        if (perm.getEncryptedBit()) {
            m.put("encBit", true);
        }
    }
    final Map<String, Map<String, Object>> finalMap = new TreeMap<String, Map<String, Object>>();
    finalMap.put(AclStatus.class.getSimpleName(), m);

    Gson gson = new Gson();
    return gson.toJson(finalMap);
}

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From source file:org.trustedanalytics.auth.gateway.hdfs.integration.HdfsGatewayIntegrationTest.java

License:Apache License

private void checkIfDirectoryExistsWithACL(Path path, String owner, String[] privilegedUsers,
        String[] privilegedGroups) throws IOException {
    AclStatus s = fileSystem.getAclStatus(path);

    assertThat(fileSystem.exists(path), equalTo(true));
    assertThat(s.getOwner(), equalTo(owner));

    List<String> usersWithAcl = s.getEntries().stream()
            .filter(entry -> entry.getType().equals(AclEntryType.USER))
            .filter(entry -> entry.getScope().equals(AclEntryScope.ACCESS)).map(AclEntry::getName)
            .collect(toList());//from  w w  w  .j  a va 2 s.  co  m

    List<String> groupsWithAcl = s.getEntries().stream()
            .filter(entry -> entry.getType().equals(AclEntryType.GROUP))
            .filter(entry -> entry.getScope().equals(AclEntryScope.ACCESS)).map(AclEntry::getName)
            .collect(toList());

    List<String> usersWithDefaultAcl = s.getEntries().stream()
            .filter(entry -> entry.getType().equals(AclEntryType.USER))
            .filter(entry -> entry.getScope().equals(AclEntryScope.ACCESS)).map(AclEntry::getName)
            .collect(toList());

    List<String> groupsWithDefaultAcl = s.getEntries().stream()
            .filter(entry -> entry.getType().equals(AclEntryType.GROUP))
            .filter(entry -> entry.getScope().equals(AclEntryScope.ACCESS)).map(AclEntry::getName)
            .collect(toList());

    assertThat(usersWithAcl.size(), equalTo(privilegedUsers.length));
    assertThat(usersWithAcl, containsInAnyOrder(privilegedUsers));

    assertThat(groupsWithAcl.size(), equalTo(privilegedGroups.length));
    assertThat(groupsWithAcl, containsInAnyOrder(privilegedGroups));

    assertThat(usersWithDefaultAcl.size(), equalTo(privilegedUsers.length));
    assertThat(usersWithDefaultAcl, containsInAnyOrder(privilegedUsers));

    assertThat(groupsWithDefaultAcl.size(), equalTo(privilegedGroups.length));
    assertThat(groupsWithDefaultAcl, containsInAnyOrder(privilegedGroups));
}

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