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The modules contains the core implementation code of Fluo.

There is a newer version: 1.0.0-beta-2

/*
 * Copyright 2014 Fluo authors (see AUTHORS)
 *
 * Licensed 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 io.fluo.core.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class HostUtil {


  private HostUtil() {}

  public static String getHostName() throws IOException {
    Process p = Runtime.getRuntime().exec("hostname");
    BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
    String result = reader.readLine();
    try {
      int exitCode = p.waitFor();
      if (exitCode != 0) {
        throw new IOException("Non-zero return from hostname process: " + result);
      }
    } catch (InterruptedException e) {
      throw new IOException(e);
    }
    return result;
  }

}