/**
* 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.processors;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hive.ql.parse.VariableSubstitution;
import org.apache.hadoop.hive.ql.session.SessionState;
import org.apache.hadoop.hive.ql.session.SessionState.LogHelper;
/**
* DeleteResourceProcessor.
*
*/
public class DeleteResourceProcessor implements CommandProcessor {
public static final Log LOG = LogFactory.getLog(DeleteResourceProcessor.class.getName());
public static final LogHelper console = new LogHelper(LOG);
public void init() {
}
public CommandProcessorResponse run(String command) {
SessionState ss = SessionState.get();
command = new VariableSubstitution().substitute(ss.getConf(),command);
String[] tokens = command.split("\\s+");
SessionState.ResourceType t;
if (tokens.length < 1
|| (t = SessionState.find_resource_type(tokens[0])) == null) {
console.printError("Usage: delete ["
+ StringUtils.join(SessionState.ResourceType.values(), "|")
+ "] <value> [<value>]*");
return new CommandProcessorResponse(1);
}
if (tokens.length >= 2) {
for (int i = 1; i < tokens.length; i++) {
ss.delete_resource(t, tokens[i]);
}
} else {
ss.delete_resource(t);
}
return new CommandProcessorResponse(0);
}
}