com.cloudera.knittingboar.metrics.TestRCV1ApplyModel.java Source code

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Here is the source code for com.cloudera.knittingboar.metrics.TestRCV1ApplyModel.java

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/**
 * 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 com.cloudera.knittingboar.metrics;

import java.io.IOException;
import java.util.ArrayList;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.FileInputFormat;
import org.apache.hadoop.mapred.InputSplit;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.TextInputFormat;

import com.cloudera.knittingboar.io.InputRecordsSplit;
import com.cloudera.knittingboar.records.RecordFactory;
import com.cloudera.knittingboar.sgd.POLRWorkerDriver;

import junit.framework.TestCase;

public class TestRCV1ApplyModel extends TestCase {

    private static JobConf defaultConf = new JobConf();
    private static FileSystem localFs = null;
    static {
        try {
            defaultConf.set("fs.defaultFS", "file:///");
            localFs = FileSystem.getLocal(defaultConf);
        } catch (IOException e) {
            throw new RuntimeException("init failure", e);
        }
    }

    private static Path inputDir = new Path(
            System.getProperty("test.build.data", "/Users/jpatterson/Downloads/rcv1/subset/train/"));

    private static Path fullRCV1Dir = new Path("/Users/jpatterson/Downloads/rcv1/rcv1.train.vw");

    private static Path fullRCV1TestFile = new Path("/Users/jpatterson/Downloads/rcv1/rcv1.test.vw");

    public Configuration generateDebugConfigurationObject() {

        Configuration c = new Configuration();

        // feature vector size
        c.setInt("com.cloudera.knittingboar.setup.FeatureVectorSize", 10000);

        c.setInt("com.cloudera.knittingboar.setup.numCategories", 2);

        c.setInt("com.cloudera.knittingboar.setup.BatchSize", 200);

        // local input split path
        c.set("com.cloudera.knittingboar.setup.LocalInputSplitPath", "hdfs://127.0.0.1/input/0");

        // setup 20newsgroups
        c.set("com.cloudera.knittingboar.setup.RecordFactoryClassname", RecordFactory.RCV1_RECORDFACTORY);

        return c;

    }

    public InputSplit[] generateDebugSplits(Path input_path, JobConf job) {

        long block_size = localFs.getDefaultBlockSize();

        System.out.println("default block size: " + (block_size / 1024 / 1024) + "MB");

        FileInputFormat.setInputPaths(job, input_path);

        // try splitting the file in a variety of sizes
        TextInputFormat format = new TextInputFormat();
        format.configure(job);

        int numSplits = 1;

        InputSplit[] splits = null;

        try {
            splits = format.getSplits(job, numSplits);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return splits;

    }

    public void testApplyModel() throws Exception {

        POLRModelTester tester = new POLRModelTester();
        // ------------------    
        // generate the debug conf ---- normally setup by YARN stuff
        tester.setConf(this.generateDebugConfigurationObject());
        // now load the conf stuff into locally used vars
        try {
            tester.LoadConfigVarsLocally();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("Conf load fail: shutting down.");
            assertEquals(0, 1);
        }
        // now construct any needed machine learning data structures based on config
        tester.Setup();
        tester.Load("/tmp/master_sgd.model");
        // ------------------    

        // ---- this all needs to be done in 
        JobConf job = new JobConf(defaultConf);

        InputSplit[] splits = generateDebugSplits(fullRCV1TestFile, job);

        System.out.println("split count: " + splits.length);

        InputRecordsSplit custom_reader_0 = new InputRecordsSplit(job, splits[0]);
        // TODO: set this up to run through the conf pathways
        tester.setupInputSplit(custom_reader_0);
        tester.RunThroughTestRecords();

    }

}