/**
* 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.common.cli;
import java.io.IOException;
import java.io.PrintStream;
import org.apache.hive.common.util.StreamPrinter;
public class ShellCmdExecutor {
private String cmd;
private PrintStream out;
private PrintStream err;
public ShellCmdExecutor(String cmd, PrintStream out, PrintStream err) {
this.cmd = cmd;
this.out = out;
this.err = err;
}
public int execute() throws Exception {
try {
Process executor = Runtime.getRuntime().exec(cmd);
StreamPrinter outPrinter = new StreamPrinter(executor.getInputStream(), null, out);
StreamPrinter errPrinter = new StreamPrinter(executor.getErrorStream(), null, err);
outPrinter.start();
errPrinter.start();
int ret = executor.waitFor();
outPrinter.join();
errPrinter.join();
return ret;
} catch (IOException ex) {
throw new Exception("Failed to execute " + cmd, ex);
}
}
}