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.FileInputStream; 16 import java.io.IOException; 17 import java.io.PrintStream; 18 import java.util.Date; 19 20 import org.jacoco.core.data.ExecutionData; 21 import org.jacoco.core.data.ExecutionDataReader; 22 import org.jacoco.core.data.IExecutionDataVisitor; 23 import org.jacoco.core.data.ISessionInfoVisitor; 24 import org.jacoco.core.data.SessionInfo; 25 26 /** 27 * This example reads execution data files given as program arguments and dumps 28 * their content. 29 */ 30 public final class ExecDump { 31 32 private final PrintStream out; 33 34 /** 35 * Creates a new example instance printing to the given stream. 36 * 37 * @param out 38 * stream for outputs 39 */ ExecDump(final PrintStream out)40 public ExecDump(final PrintStream out) { 41 this.out = out; 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 dump(file); 55 } 56 } 57 dump(final String file)58 private void dump(final String file) throws IOException { 59 out.printf("exec file: %s%n", file); 60 out.println("CLASS ID HITS/PROBES CLASS NAME"); 61 62 final FileInputStream in = new FileInputStream(file); 63 final ExecutionDataReader reader = new ExecutionDataReader(in); 64 reader.setSessionInfoVisitor(new ISessionInfoVisitor() { 65 public void visitSessionInfo(final SessionInfo info) { 66 out.printf("Session \"%s\": %s - %s%n", info.getId(), 67 new Date(info.getStartTimeStamp()), 68 new Date(info.getDumpTimeStamp())); 69 } 70 }); 71 reader.setExecutionDataVisitor(new IExecutionDataVisitor() { 72 public void visitClassExecution(final ExecutionData data) { 73 out.printf("%016x %3d of %3d %s%n", 74 Long.valueOf(data.getId()), 75 Integer.valueOf(getHitCount(data.getProbes())), 76 Integer.valueOf(data.getProbes().length), 77 data.getName()); 78 } 79 }); 80 reader.read(); 81 in.close(); 82 out.println(); 83 } 84 getHitCount(final boolean[] data)85 private int getHitCount(final boolean[] data) { 86 int count = 0; 87 for (final boolean hit : data) { 88 if (hit) { 89 count++; 90 } 91 } 92 return count; 93 } 94 95 /** 96 * Entry point to run this examples as a Java application. 97 * 98 * @param args 99 * list of program arguments 100 * @throws IOException 101 * in case of errors executing the example 102 */ main(final String[] args)103 public static void main(final String[] args) throws IOException { 104 new ExecDump(System.out).execute(args); 105 } 106 } 107