org.apache.hadoop.mapreduce.JobACL#values ( )源码实例Demo

/**
 * Construct the jobACLs from the configuration so that they can be kept in
 * the memory. If authorization is disabled on the JT, nothing is constructed
 * and an empty map is returned.
 * 
 * @return JobACL to AccessControlList map.
 */
public Map<JobACL, AccessControlList> constructJobACLs(Configuration conf) {

  Map<JobACL, AccessControlList> acls =
      new HashMap<JobACL, AccessControlList>();

  // Don't construct anything if authorization is disabled.
  if (!areACLsEnabled()) {
    return acls;
  }

  for (JobACL aclName : JobACL.values()) {
    String aclConfigName = aclName.getAclName();
    String aclConfigured = conf.get(aclConfigName);
    if (aclConfigured == null) {
      // If ACLs are not configured at all, we grant no access to anyone. So
      // jobOwner and cluster administrator _only_ can do 'stuff'
      aclConfigured = " ";
    }
    acls.put(aclName, new AccessControlList(aclConfigured));
  }
  return acls;
}
 

/**
 * Construct the jobACLs from the configuration so that they can be kept in
 * the memory. If authorization is disabled on the JT, nothing is constructed
 * and an empty map is returned.
 * 
 * @return JobACL to AccessControlList map.
 */
public Map<JobACL, AccessControlList> constructJobACLs(Configuration conf) {

  Map<JobACL, AccessControlList> acls =
      new HashMap<JobACL, AccessControlList>();

  // Don't construct anything if authorization is disabled.
  if (!areACLsEnabled()) {
    return acls;
  }

  for (JobACL aclName : JobACL.values()) {
    String aclConfigName = aclName.getAclName();
    String aclConfigured = conf.get(aclConfigName);
    if (aclConfigured == null) {
      // If ACLs are not configured at all, we grant no access to anyone. So
      // jobOwner and cluster administrator _only_ can do 'stuff'
      aclConfigured = " ";
    }
    acls.put(aclName, new AccessControlList(aclConfigured));
  }
  return acls;
}
 

/** Get the acls configured for the job **/
public Map<JobACL, AccessControlList> getJobAcls() {
  Map<JobACL, AccessControlList> jobAcls =
      new HashMap<JobACL, AccessControlList>();
  for (JobACL jobACL : JobACL.values()) {
    Utf8 jobACLsUtf8 = new Utf8(jobACL.getAclName());
    if (datum.acls.containsKey(jobACLsUtf8)) {
      jobAcls.put(jobACL, new AccessControlList(datum.acls.get(
          jobACLsUtf8).toString()));
    }
  }
  return jobAcls;
}
 

/** Get the acls configured for the job **/
public Map<JobACL, AccessControlList> getJobAcls() {
  Map<JobACL, AccessControlList> jobAcls =
      new HashMap<JobACL, AccessControlList>();
  for (JobACL jobACL : JobACL.values()) {
    Utf8 jobACLsUtf8 = new Utf8(jobACL.getAclName());
    if (datum.acls.containsKey(jobACLsUtf8)) {
      jobAcls.put(jobACL, new AccessControlList(datum.acls.get(
          jobACLsUtf8).toString()));
    }
  }
  return jobAcls;
}