1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.google.android.jacoco.reporter; 18 19 import org.jacoco.report.InputStreamSourceFileLocator; 20 21 import java.io.IOException; 22 import java.io.InputStream; 23 import java.util.Optional; 24 import java.util.jar.JarEntry; 25 import java.util.jar.JarFile; 26 27 /** 28 * Jacoco source file locator that picks files from a jar containing .java files. 29 */ 30 public class JarSourceFileLocator extends InputStreamSourceFileLocator { 31 32 private final JarFile mJarFile; 33 JarSourceFileLocator(JarFile jarFile, String encoding, int tabWidth)34 protected JarSourceFileLocator(JarFile jarFile, String encoding, int tabWidth) { 35 super(encoding, tabWidth); 36 37 mJarFile = jarFile; 38 } 39 40 @Override getSourceStream(String s)41 protected InputStream getSourceStream(String s) throws IOException { 42 Optional<JarEntry> e = mJarFile.stream().filter(it -> it.getName().endsWith(s)).findFirst(); 43 if (e.isPresent()) { 44 return mJarFile.getInputStream(e.get()); 45 } else { 46 return null; 47 } 48 } 49 } 50