Method main

src/org/antlr/codebuff/validation/TestK.java:39–98

(String[] args)

	}

	public static void main(String[] args) throws Exception {
		LangDescriptor[] languages = new LangDescriptor[] {
			JAVA_DESCR,
			JAVA8_DESCR,
//			JAVA_GUAVA_DESCR,
//			JAVA8_GUAVA_DESCR,
			ANTLR4_DESCR,
			SQLITE_CLEAN_DESCR,
			TSQL_CLEAN_DESCR,
		};

		int MAX_K = 98; // should be odd
		int OUTLIER_K = 99;
		List<Integer> ks = new ArrayList<>();
		for (int i = 1; i<=MAX_K; i+=2) {
			ks.add(i);
		}
		ks.add(OUTLIER_K);
		// track medians[language][k]
		Float[][] medians = new Float[languages.length+1][];

		int ncpu = Runtime.getRuntime().availableProcessors();
		if ( FORCE_SINGLE_THREADED ) {
			ncpu = 2;
		}
		ExecutorService pool = Executors.newFixedThreadPool(ncpu-1);
		List<Callable<Void>> jobs = new ArrayList<>();

		for (int i = 0; i<languages.length; i++) {
			final LangDescriptor language = languages[i];
			final int langIndex = i;
			System.out.println(language.name);
			for (int k : ks) {
				medians[langIndex] = new Float[OUTLIER_K+1];
				Callable<Void> job = () -> {
					try {
						TestK tester = new TestK(language.corpusDir, language, k);
						List<Float> errorRates = tester.scoreDocuments();
						Collections.sort(errorRates);
						int n = errorRates.size();
						float median = errorRates.get(n/2);
//						double var = BuffUtils.varianceFloats(errorRates);
//						String display = String.format("%5.4f, %5.4f, %5.4f, %5.4f, %5.4f", min, quart, median, quart3, max);
						medians[langIndex][k] = median;
					}
					catch (Throwable t) {
						t.printStackTrace(System.err);
					}
					return null;
				};
				jobs.add(job);
			}
		}

		pool.invokeAll(jobs);
		pool.shutdown();
		boolean terminated = pool.awaitTermination(60, TimeUnit.MINUTES);