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core/common/junit/src/main/java/org/eclipse/edc/junit/extensions/ClasspathReader.java
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| /* | ||
| * Copyright (c) 2024 Bayerische Motoren Werke Aktiengesellschaft (BMW AG) | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Apache License, Version 2.0 which is available at | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * Contributors: | ||
| * Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation | ||
| * | ||
| */ | ||
|
|
||
| package org.eclipse.edc.junit.extensions; | ||
|
|
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| import org.eclipse.edc.junit.testfixtures.TestUtils; | ||
| import org.eclipse.edc.spi.EdcException; | ||
|
|
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| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.net.URL; | ||
| import java.util.Arrays; | ||
| import java.util.Locale; | ||
| import java.util.stream.Stream; | ||
|
|
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| /** | ||
| * Read the classpath entries of the gradle modules. | ||
| */ | ||
| public class ClasspathReader { | ||
|
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| private static final File PROJECT_ROOT = TestUtils.findBuildRoot(); | ||
| private static final File GRADLE_WRAPPER = new File(PROJECT_ROOT, TestUtils.GRADLE_WRAPPER); | ||
|
|
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| /** | ||
| * Get classpath entries for the passed modules | ||
| * | ||
| * @param modules the modules. | ||
| * @return the classpath entries. | ||
| */ | ||
| public static URL[] classpathFor(String... modules) { | ||
| try { | ||
| // Run a Gradle custom task to determine the runtime classpath of the module to run | ||
| var printClasspath = Arrays.stream(modules).map(it -> it + ":printClasspath"); | ||
| var commandStream = Stream.of(GRADLE_WRAPPER.getCanonicalPath(), "-q"); | ||
| var command = Stream.concat(commandStream, printClasspath).toArray(String[]::new); | ||
|
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| var exec = Runtime.getRuntime().exec(command); | ||
|
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| try (var reader = exec.inputReader()) { | ||
| return reader.lines().map(line -> line.split(":|\\s")) | ||
| .flatMap(Arrays::stream) | ||
| .filter(s -> !s.isBlank()) | ||
| .map(File::new) | ||
| .flatMap(ClasspathReader::resolveClasspathEntry) | ||
| .toArray(URL[]::new); | ||
| } | ||
|
|
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| } catch (IOException e) { | ||
| throw new EdcException(e); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Replace Gradle subproject JAR entries with subproject build directories in classpath. This ensures modified | ||
| * classes are picked up without needing to rebuild dependent JARs. | ||
| * | ||
| * @param classpathFile classpath entry file. | ||
| * @return resolved classpath entries for the input argument. | ||
| */ | ||
| private static Stream<URL> resolveClasspathEntry(File classpathFile) { | ||
| try { | ||
| if (isJar(classpathFile) && isUnderRoot(classpathFile)) { | ||
| var buildDir = classpathFile.getCanonicalFile().getParentFile().getParentFile(); | ||
| return Stream.of( | ||
| new File(buildDir, "/classes/java/main").toURI().toURL(), | ||
| new File(buildDir, "../src/main/resources").toURI().toURL() | ||
| ); | ||
| } else { | ||
| var sanitizedClassPathEntry = classpathFile.getCanonicalPath().replace("build/resources/main", "src/main/resources"); | ||
| return Stream.of(new File(sanitizedClassPathEntry).toURI().toURL()); | ||
| } | ||
|
|
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| } catch (IOException e) { | ||
| throw new EdcException(e); | ||
| } | ||
| } | ||
|
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| private static boolean isUnderRoot(File classPathFile) throws IOException { | ||
| return classPathFile.getCanonicalPath().startsWith(ClasspathReader.PROJECT_ROOT.getCanonicalPath() + File.separator); | ||
| } | ||
|
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| private static boolean isJar(File classPathFile) throws IOException { | ||
| return classPathFile.getCanonicalPath().toLowerCase(Locale.ROOT).endsWith(".jar"); | ||
| } | ||
|
|
||
| } |
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