1 /******************************************************************************* 2 * Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors 3 * This program and the accompanying materials are made available under 4 * the terms of the Eclipse Public License 2.0 which is available at 5 * http://www.eclipse.org/legal/epl-2.0 6 * 7 * SPDX-License-Identifier: EPL-2.0 8 * 9 * Contributors: 10 * Marc R. Hoffmann - initial API and implementation 11 * 12 *******************************************************************************/ 13 package org.jacoco.examples; 14 15 import java.io.File; 16 import java.io.IOException; 17 import java.io.PrintStream; 18 19 import org.jacoco.core.analysis.Analyzer; 20 import org.jacoco.core.analysis.IClassCoverage; 21 import org.jacoco.core.analysis.ICoverageVisitor; 22 import org.jacoco.core.data.ExecutionDataStore; 23 24 /** 25 * This example reads Java class files, directories or JARs given as program 26 * arguments and dumps information about the classes. 27 */ 28 public final class ClassInfo implements ICoverageVisitor { 29 30 private final PrintStream out; 31 private final Analyzer analyzer; 32 33 /** 34 * Creates a new example instance printing to the given stream. 35 * 36 * @param out 37 * stream for outputs 38 */ ClassInfo(final PrintStream out)39 public ClassInfo(final PrintStream out) { 40 this.out = out; 41 analyzer = new Analyzer(new ExecutionDataStore(), this); 42 } 43 44 /** 45 * Run this example with the given parameters. 46 * 47 * @param args 48 * command line parameters 49 * @throws IOException 50 * in case of error reading a input file 51 */ execute(final String[] args)52 public void execute(final String[] args) throws IOException { 53 for (final String file : args) { 54 analyzer.analyzeAll(new File(file)); 55 } 56 } 57 visitCoverage(final IClassCoverage coverage)58 public void visitCoverage(final IClassCoverage coverage) { 59 out.printf("class name: %s%n", coverage.getName()); 60 out.printf("class id: %016x%n", Long.valueOf(coverage.getId())); 61 out.printf("instructions: %s%n", Integer 62 .valueOf(coverage.getInstructionCounter().getTotalCount())); 63 out.printf("branches: %s%n", 64 Integer.valueOf(coverage.getBranchCounter().getTotalCount())); 65 out.printf("lines: %s%n", 66 Integer.valueOf(coverage.getLineCounter().getTotalCount())); 67 out.printf("methods: %s%n", 68 Integer.valueOf(coverage.getMethodCounter().getTotalCount())); 69 out.printf("complexity: %s%n%n", Integer 70 .valueOf(coverage.getComplexityCounter().getTotalCount())); 71 } 72 73 /** 74 * Entry point to run this examples as a Java application. 75 * 76 * @param args 77 * list of program arguments 78 * @throws IOException 79 * in case of errors executing the example 80 */ main(final String[] args)81 public static void main(final String[] args) throws IOException { 82 new ClassInfo(System.out).execute(args); 83 } 84 85 } 86