| /* |
| * Copyright 2014-present Facebook, Inc. |
| * |
| * 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 com.facebook.buck.util; |
| |
| import com.facebook.buck.log.Logger; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| public class ThriftWatcher { |
| |
| private static final Logger LOG = Logger.get(ThriftWatcher.class); |
| |
| private ThriftWatcher() { |
| } |
| |
| /** |
| * @return true if "thrift --version" can be executed successfully |
| */ |
| public static boolean isThriftAvailable() throws InterruptedException { |
| try { |
| LOG.debug("Checking if Thrift is available.."); |
| InputStream output = new ProcessBuilder("thrift", "-version").start().getInputStream(); |
| byte[] bytes = new byte[7]; |
| output.read(bytes); |
| boolean available = (new String(bytes)).equals("Thrift "); |
| LOG.debug("Thrift available: %s", available); |
| return available; |
| } catch (IOException e) { |
| return false; // Could not execute thrift. |
| } |
| } |
| } |