Package org.jrdf.example.performance

Source Code of org.jrdf.example.performance.AbstractGraphPerformance

/*
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* $Revision: 982 $
* $Date: 2006-12-08 18:42:51 +1000 (Fri, 08 Dec 2006) $
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* The Apache Software License, Version 1.1
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package org.jrdf.example.performance;

import org.jrdf.graph.Graph;
import org.jrdf.graph.GraphException;
import org.jrdf.collection.MapFactory;
import org.jrdf.writer.BlankNodeRegistry;

public abstract class AbstractGraphPerformance implements GraphPerformance {
    private static final int NUMBER_OF_NODES_TO_ADD = 10000;
    private static final int NUMBER_OF_NODES_TO_FIND = 1000;
    private static final int NUMBER_OF_NODES_TO_UPDATE = 1000;
    private static final int NO_MILLISECONDS_IN_A_SECOND = 1000;
    private static final int NUMBER_OF_PREDICATES = 10;
    private static final int EXPECTED_ARGS = 3;
    private static final String SUBJECT_PREFIX = "http://foo";
    private static final String PREDICATE_PREFIX = "http://bar";
    private static final String OBJECT_PREFIX = "http://foo";

    public void testPerformance(String[] args) throws Exception {
        if (args.length != EXPECTED_ARGS) {
            testPerformance(0, 0, 0);
        } else {
            testPerformance(Integer.parseInt(args[0]), Integer.parseInt(args[1]), Integer.parseInt(args[2]));
        }
    }

    private void testPerformance(int numberToAdd, int numberToFind, int numberToUpdate) throws Exception {
        checkParameters(numberToAdd, numberToFind, numberToUpdate);
        Graph graph = getGraph();
        //new ParsePerformanceImpl(getMapFactory()).parse(graph, this);
        new AddPerformanceImpl(NUMBER_OF_PREDICATES, SUBJECT_PREFIX, PREDICATE_PREFIX, OBJECT_PREFIX).addPerformance(
            numberToAdd == 0 ? NUMBER_OF_NODES_TO_ADD : numberToAdd, graph, this);
        new WritePerformanceImpl().writePerformance(graph, this, getBlankNodeRegistry());
        new FindPerformanceImpl(numberToFind == 0 ? NUMBER_OF_NODES_TO_FIND : numberToFind, SUBJECT_PREFIX
        ).findPerformance(graph, this);
        new UpdatePerformanceImpl(numberToUpdate == 0 ? NUMBER_OF_NODES_TO_UPDATE : numberToUpdate, SUBJECT_PREFIX).
            updatePerformance(graph, this);
    }

    private void checkParameters(int numberToAdd, int numberToFind, int numberToUpdate) {
        if (numberToAdd != 0 && (numberToAdd < numberToFind || numberToAdd < numberToUpdate)) {
            throw new IllegalArgumentException("Can't find or update more than the number to add: " + numberToAdd);
        }
    }

    protected abstract Graph getGraph();

    protected abstract MapFactory getMapFactory();

    protected abstract BlankNodeRegistry getBlankNodeRegistry();

    public void outputResult(Graph graph, long startTime, String what) throws GraphException {
        long finishTime = System.currentTimeMillis();
        System.out.println("\n" + what);
        System.out.println("Triples: " + graph.getNumberOfTriples() + " Took: " + (finishTime - startTime) +
            " ms = " + ((finishTime - startTime) / NO_MILLISECONDS_IN_A_SECOND) + " s");
    }
}
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