htsjdk.tribble.example.ProfileIndexReading Maven / Gradle / Ivy
/*
* Copyright (c) 2010, The Broad Institute
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package htsjdk.tribble.example;
import htsjdk.tribble.index.Index;
import htsjdk.tribble.index.IndexFactory;
public class ProfileIndexReading {
/**
* This class times the loading of an index file a number of times,
* and prints the result of each trial
* @param args Two parameters:
* 1) The number of trials to run
* 2) Index file to load
*/
public static void main(String[] args) {
// check yourself before you wreck yourself - we require one arg, the input file
if (args.length < 2)
printUsage();
int iterations = Integer.parseInt(args[0]);
for ( int j = 1; j < args.length; j++ ) {
String indexFile = args[j];
System.out.printf("Reading %s%n", indexFile);
long startTime = System.currentTimeMillis();
for ( int i = 0; i < iterations; i++ ) {
System.out.printf(" iteration %d%n", i);
Index index = IndexFactory.loadIndex(indexFile);
}
long stopTime = System.currentTimeMillis();
System.out.printf("Runtime %s %.2f%n", indexFile, (stopTime - startTime) / 1000.0);
}
}
/**
* print usage information
*/
public static void printUsage() {
System.err.println("Usage: java -jar ReadIndices.jar iterations index.file...");
System.exit(1);
}
}