source: other-projects/hathitrust/wcsa/extracted-features-solr/trunk/solr-ingest/src/main/java/org/hathitrust/extractedfeatures/ProcessForCatalogLangCount.java@ 31364

package org.hathitrust.extractedfeatures;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.Serializable;
import org.apache.commons.cli.*;
import org.apache.hadoop.io.Text;
import org.apache.spark.api.java.*;
import org.apache.spark.api.java.function.Function2;
import org.apache.spark.api.java.function.PairFunction;
import org.apache.spark.storage.StorageLevel;
import org.apache.spark.util.DoubleAccumulator;
import scala.Tuple2;

import org.apache.spark.SparkConf;

public class ProcessForCatalogLangCount implements Serializable
{
    private static final long serialVersionUID = 1L;

    protected static final int DEFAULT_FILES_PER_PARTITION = 3000;
    
    protected String _input_dir;
    protected String _json_list_filename;
    
    protected int    _verbosity;

    public ProcessForCatalogLangCount(String input_dir, String json_list_filename, int verbosity)
    {
        _input_dir = input_dir;
        _json_list_filename = (json_list_filename != null) ? json_list_filename : input_dir;

        _verbosity  = verbosity;
    }

    protected String generateSparkAppName(String exec_mode)
    {
        String spark_app_name = "[" + exec_mode + "] Extracted Features: Process for Catalog Language Labels";
        spark_app_name += " [" + _json_list_filename + "]";
    
        return spark_app_name;
    }
        
    public void execCatalogLangCountSparkDirect()
    {   
        String spark_app_name = generateSparkAppName("Spark-Direct + Per Volume");      
        
        SparkConf conf = new SparkConf().setAppName(spark_app_name);
        JavaSparkContext jsc = new JavaSparkContext(conf);
        
        String filename_root = _json_list_filename.replaceAll(".*/","").replaceAll("\\..*$","");
        String output_directory = "catalog-lang-" + filename_root + "-out";
        if (ClusterFileIO.exists(output_directory))
        {
            System.err.println("Error: " + output_directory + " already exists.  Spark unable to write output data");
            jsc.close();
            System.exit(1);
        }
        
        //int num_partitions = Integer.getInteger("wcsa-ef-ingest.num-partitions", DEFAULT_NUM_PARTITIONS);
        int files_per_partition = Integer.getInteger("wcsa-ef-ingest.files-per-partition", DEFAULT_FILES_PER_PARTITION);
        
        JavaRDD<String> json_list_data = jsc.textFile(_json_list_filename).cache();
        json_list_data.setName("JSON-file-list");
        
        long num_volumes = json_list_data.count();
        double per_vol = 100.0/(double)num_volumes;

        int num_partitions = (int)(num_volumes/files_per_partition)+1;
        
        JavaRDD<String> json_list_data_rp = json_list_data.repartition(num_partitions);
        json_list_data_rp.setName("JSON-file-list--repartitioned");
        
        DoubleAccumulator per_vol_progress_accum = jsc.sc().doubleAccumulator("Per Volume Progress Percent");
        
        boolean strict_file_io = Boolean.getBoolean("wcsa-ef-ingest.strict-file-io");
        
        PerVolumeCatalogLangStreamFlatmap volume_catalog_langfreq_flatmap 
            = new PerVolumeCatalogLangStreamFlatmap(_input_dir,_verbosity, 
                                     per_vol_progress_accum,per_vol,
                                     strict_file_io);
        JavaRDD<String> catalog_lang_list = json_list_data_rp.flatMap(volume_catalog_langfreq_flatmap); 
        catalog_lang_list.persist(StorageLevel.MEMORY_AND_DISK());
        catalog_lang_list.setName("catalog-lang-stream");
    
        
        JavaPairRDD<String, Long> catalog_lang_pairs = catalog_lang_list.mapToPair(s -> new Tuple2<String, Long>(s, 1L));
        catalog_lang_pairs.setName("single-catalog-lang-count");
        
        JavaPairRDD<String, Long> catalog_lang_counts = catalog_lang_pairs.reduceByKey((a, b) -> a + b);
        catalog_lang_counts.setName("catalog-lang-frequency");
        
        JavaPairRDD<Long, String> catalog_lang_counts_swapped_pair
            = catalog_lang_counts.mapToPair(item -> item.swap());
        catalog_lang_counts_swapped_pair.setName("frequency-catalog-lang-swap");
        
        JavaPairRDD<Long, String> catalog_lang_counts_swapped_pair_sorted 
            = catalog_lang_counts_swapped_pair.sortByKey(false, num_partitions);
        catalog_lang_counts_swapped_pair_sorted.setName("descending-sorted-frequency-catalog-lang");
        
        JavaPairRDD<String, Long> catalog_lang_count_sorted 
            = catalog_lang_counts_swapped_pair_sorted.mapToPair(item -> item.swap());
        catalog_lang_count_sorted.setName("descending-catalog-lang-frequency");
        
        
        catalog_lang_count_sorted.saveAsTextFile(output_directory);
        jsc.close();
    }

    public void execCatalogLangCount()
    {   
        
        
        String spark_app_name = generateSparkAppName("YARN Cluster + Per Volume");      
        
        SparkConf conf = new SparkConf().setAppName(spark_app_name);
        JavaSparkContext jsc = new JavaSparkContext(conf);
        jsc.hadoopConfiguration().set("io.compression.codec.bzip2.library", "java-builtin");
        
        String packed_sequence_path = "hdfs:///user/capitanu/data/packed-ef";

        JavaPairRDD<Text, Text> input_pair_rdd = jsc.sequenceFile(packed_sequence_path, Text.class, Text.class);
        //JavaRDD<Text> jsonTextRdd = input_pair_rdd.map(Tuple2::_2);
        JavaRDD<Text> json_text_rdd = input_pair_rdd.map(item -> item._2);
        
        //JavaRDD<Text> json_text_sample_rdd = json_text_rdd.sample(false,0.0001);
        
        /*
        jsonTextRdd.map(
            jsonText -> "" // parse JSON text and do whatever ...
        );
            */
        
        boolean strict_file_io = Boolean.getBoolean("wcsa-ef-ingest.strict-file-io");
        
        PerVolumeCatalogLangSequenceFileMap volume_catalog_langfreq_map
            = new PerVolumeCatalogLangSequenceFileMap(_input_dir,_verbosity,strict_file_io);
        JavaRDD<String> catalog_lang_list = json_text_rdd.map(volume_catalog_langfreq_map); 
        //catalog_lang_list.persist(StorageLevel.MEMORY_AND_DISK());
        catalog_lang_list.setName("catalog-lang-stream");
    
        
        JavaPairRDD<String, Long> catalog_lang_pairs = catalog_lang_list.mapToPair(s -> new Tuple2<String, Long>(s, 1L));
        catalog_lang_pairs.setName("single-catalog-lang-count");
        
        JavaPairRDD<String, Long> catalog_lang_counts = catalog_lang_pairs.reduceByKey((a, b) -> a + b);
        catalog_lang_counts.setName("catalog-lang-frequency");
        
        JavaPairRDD<Long, String> catalog_lang_counts_swapped_pair
            = catalog_lang_counts.mapToPair(item -> item.swap());
        catalog_lang_counts_swapped_pair.setName("frequency-catalog-lang-swap");
        
        JavaPairRDD<Long, String> catalog_lang_counts_swapped_pair_sorted 
            = catalog_lang_counts_swapped_pair.sortByKey(false,20);
        catalog_lang_counts_swapped_pair_sorted.setName("descending-sorted-frequency-catalog-lang");
        
        JavaPairRDD<String, Long> catalog_lang_count_sorted 
            = catalog_lang_counts_swapped_pair_sorted.mapToPair(item -> item.swap());
        catalog_lang_count_sorted.setName("descending-catalog-lang-frequency");
        
        String filename_root = _json_list_filename.replaceAll(".*/","").replaceAll("\\..*$","");
        String output_directory = "catalog-lang-" + filename_root + "-out";
        catalog_lang_count_sorted.saveAsTextFile(output_directory);
        jsc.close();
    }
    
    
    
    public static void print_usage(HelpFormatter formatter, Options options)
    {
        formatter.printHelp("RUN.bash [options] input-dir json-filelist.txt", options);
    }
    
    public static void main(String[] args) {
        Options options = new Options();

        Option verbosity_opt = new Option("v", "verbosity", true, 
                "Set to control the level of debugging output [0=none, 1=some, 2=lots]");
        verbosity_opt.setRequired(false);
        options.addOption(verbosity_opt);
        
        Option properties_opt = new Option("p", "properties", true, 
                "Read in the specified Java properties file");
        properties_opt.setRequired(false);
        options.addOption(properties_opt);
        
        // Need to work with CLI v1.2 as this is the JAR that is bundled with Hadoop/Spark 
        CommandLineParser parser = new GnuParser(); 
        //CommandLineParser parser = new DefaultParser(); // if working with CLI v1.3 and above
        
        HelpFormatter formatter = new HelpFormatter();
        CommandLine cmd = null;

        try {
            cmd = parser.parse(options, args);
        }
        catch (ParseException e) {
            System.err.println(e.getMessage());
            print_usage(formatter,options);
            System.exit(1);
        }

        String verbosity_str = cmd.getOptionValue("verbosity","1");
        int verbosity = Integer.parseInt(verbosity_str);

        String property_filename = cmd.getOptionValue("properties",null);
        
        String[] filtered_args = cmd.getArgs();

        if (filtered_args.length != 2) {
            print_usage(formatter,options);
            System.exit(1);
        }
    
        if (property_filename != null) {
            try {
                FileInputStream fis = new FileInputStream(property_filename);
                BufferedInputStream bis = new BufferedInputStream(fis);
                
                System.getProperties().load(bis);
            } 
            catch (FileNotFoundException e) {
                e.printStackTrace();
                System.err.println("File not found: '" + property_filename + "'. Skipping property file read");
            }
            catch (IOException e) {
                System.err.println("IO Exception for: '" + property_filename + "'. Malformed syntax? Skipping property file read");
            }
        }
                
        String input_dir  = filtered_args[0];
        String json_list_filename = filtered_args[1];
        
        ProcessForCatalogLangCount prep_for_lang 
            = new ProcessForCatalogLangCount(input_dir,json_list_filename,verbosity);
        
        prep_for_lang.execCatalogLangCount();
    
    }
}