org.apache.hadoop.hive.ql.security.authorization.PrivilegeType Maven / Gradle / Ivy
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.security.authorization;
import java.util.HashMap;
import java.util.Map;
import org.apache.hadoop.hive.ql.parse.HiveParser;
/**
* Privilege type
*/
public enum PrivilegeType {
ALL(HiveParser.TOK_PRIV_ALL, "All"),
ALTER_DATA(HiveParser.TOK_PRIV_ALTER_DATA, "Update"),
ALTER_METADATA(HiveParser.TOK_PRIV_ALTER_METADATA, "Alter"),
CREATE(HiveParser.TOK_PRIV_CREATE, "Create"),
DROP(HiveParser.TOK_PRIV_DROP, "Drop"),
INDEX(HiveParser.TOK_PRIV_INDEX, "Index"),
LOCK(HiveParser.TOK_PRIV_LOCK, "Lock"),
SELECT(HiveParser.TOK_PRIV_SELECT, "Select"),
SHOW_DATABASE(HiveParser.TOK_PRIV_SHOW_DATABASE, "Show_Database"),
INSERT(HiveParser.TOK_PRIV_INSERT, "Insert"),
DELETE(HiveParser.TOK_PRIV_DELETE, "Delete"),
UNKNOWN(null, null);
private final String name;
private final Integer token;
PrivilegeType(Integer token, String name){
this.name = name;
this.token = token;
}
@Override
public String toString(){
return name == null ? "unkown" : name;
}
public Integer getToken() {
return token;
}
private static Map token2Type;
private static Map name2Type;
/**
* Do case lookup of PrivilegeType associated with this antlr token
* @param privilegeName
* @return corresponding PrivilegeType
*/
public static PrivilegeType getPrivTypeByToken(int token) {
populateToken2Type();
PrivilegeType privType = token2Type.get(token);
if(privType != null){
return privType;
}
return PrivilegeType.UNKNOWN;
}
private static synchronized void populateToken2Type() {
if(token2Type != null){
return;
}
token2Type = new HashMap();
for(PrivilegeType privType : PrivilegeType.values()){
token2Type.put(privType.getToken(), privType);
}
}
/**
* Do case insensitive lookup of PrivilegeType with this name
* @param privilegeName
* @return corresponding PrivilegeType
*/
public static PrivilegeType getPrivTypeByName(String privilegeName) {
populateName2Type();
String canonicalizedName = privilegeName.toLowerCase();
PrivilegeType privType = name2Type.get(canonicalizedName);
if(privType != null){
return privType;
}
return PrivilegeType.UNKNOWN;
}
private static synchronized void populateName2Type() {
if(name2Type != null){
return;
}
name2Type = new HashMap();
for(PrivilegeType privType : PrivilegeType.values()){
name2Type.put(privType.toString().toLowerCase(), privType);
}
}
}