| /** |
| * 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.pig.backend.hadoop.executionengine.spark; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.mapred.JobConf; |
| |
| import com.esotericsoftware.kryo.io.Input; |
| import com.esotericsoftware.kryo.io.Output; |
| |
| /** |
| * Pulled class from Hive on Spark |
| */ |
| public class KryoSerializer { |
| private static final Log LOG = LogFactory.getLog(KryoSerializer.class); |
| |
| public static byte[] serializeJobConf(JobConf jobConf) { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| try { |
| jobConf.write(new DataOutputStream(out)); |
| } catch (IOException e) { |
| LOG.error("Error serializing job configuration", e); |
| return null; |
| } finally { |
| try { |
| out.close(); |
| } catch (IOException e) { |
| LOG.error("Error closing output stream", e); |
| } |
| } |
| |
| return out.toByteArray(); |
| |
| } |
| |
| public static JobConf deserializeJobConf(byte[] buffer) { |
| JobConf conf = new JobConf(); |
| try { |
| conf.readFields(new DataInputStream(new ByteArrayInputStream(buffer))); |
| } catch (IOException e) { |
| LOG.error("Error de-serializing job configuration"); |
| return null; |
| } |
| return conf; |
| } |
| |
| } |