| /* |
| * 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.tools.pigstats; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapred.JobClient; |
| import org.apache.pig.backend.hadoop.datastorage.ConfigurationUtil; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POStore; |
| import org.apache.pig.impl.PigContext; |
| |
| /** |
| * EmptyPigStats encapsulates dummy statistics of a fetch task, since during a |
| * fetch no MR jobs are executed |
| * |
| */ |
| public class EmptyPigStats extends PigStats { |
| |
| private final List<OutputStats> outputStatsList; |
| private final List<InputStats> inputStatsList; |
| private final JobGraph emptyJobPlan = new JobGraph(); |
| |
| public EmptyPigStats() { |
| // initialize empty stats |
| OutputStats os = new OutputStats(null, -1, -1, true); |
| this.outputStatsList = Collections.unmodifiableList(Arrays.asList(os)); |
| |
| InputStats is = new InputStats(null, -1, -1, true); |
| this.inputStatsList = Collections.unmodifiableList(Arrays.asList(is)); |
| } |
| |
| public EmptyPigStats(PigContext pigContext, POStore poStore) { |
| super.pigContext = pigContext; |
| super.startTime = super.endTime = System.currentTimeMillis(); |
| super.userId = System.getProperty("user.name"); |
| |
| Configuration conf = ConfigurationUtil.toConfiguration(pigContext.getProperties()); |
| |
| // initialize empty stats |
| OutputStats os = new OutputStats(null, -1, -1, true); |
| os.setConf(conf); |
| os.setPOStore(poStore); |
| this.outputStatsList = Collections.unmodifiableList(Arrays.asList(os)); |
| |
| InputStats is = new InputStats(null, -1, -1, true); |
| is.setConf(conf); |
| this.inputStatsList = Collections.unmodifiableList(Arrays.asList(is)); |
| } |
| |
| @Override |
| public JobClient getJobClient() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isEmbedded() { |
| return false; |
| } |
| |
| @Override |
| public Map<String, List<PigStats>> getAllStats() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public List<String> getAllErrorMessages() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public String getDisplayString() { |
| return null; |
| } |
| |
| @Override |
| public JobGraph getJobGraph() { |
| return emptyJobPlan; |
| } |
| |
| @Override |
| public List<String> getOutputLocations() { |
| return Collections.emptyList(); |
| } |
| |
| @Override |
| public List<String> getOutputNames() { |
| return Collections.emptyList(); |
| } |
| |
| @Override |
| public long getNumberBytes(String location) { |
| return -1L; |
| } |
| |
| @Override |
| public long getNumberRecords(String location) { |
| return -1L; |
| } |
| |
| @Override |
| public String getOutputAlias(String location) { |
| return null; |
| } |
| |
| @Override |
| public long getSMMSpillCount() { |
| return 0L; |
| } |
| |
| @Override |
| public long getProactiveSpillCountRecords() { |
| return 0L; |
| } |
| |
| @Override |
| public long getProactiveSpillCountObjects() { |
| return 0L; |
| } |
| |
| @Override |
| public long getBytesWritten() { |
| return 0L; |
| } |
| |
| @Override |
| public long getRecordWritten() { |
| return 0L; |
| } |
| |
| @Override |
| public int getNumberJobs() { |
| return 0; |
| } |
| |
| @Override |
| public List<OutputStats> getOutputStats() { |
| return outputStatsList; |
| } |
| |
| @Override |
| public OutputStats result(String alias) { |
| return outputStatsList.get(0); |
| } |
| |
| @Override |
| public List<InputStats> getInputStats() { |
| return inputStatsList; |
| } |
| |
| @Override |
| public void setBackendException(String jobId, Exception e) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void start() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void stop() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int getNumberSuccessfulJobs() { |
| return -1; |
| } |
| |
| @Override |
| public int getNumberFailedJobs() { |
| return -1; |
| } |
| |
| } |