/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.runtime.module.deployment.impl.internal.plugin;
import static java.nio.file.Files.newBufferedWriter;
import static org.hamcrest.core.Is.is;
import static org.hamcrest.core.IsInstanceOf.instanceOf;
import static org.junit.Assert.assertThat;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import org.mule.runtime.api.exception.MuleException;
import org.mule.runtime.deployment.model.api.plugin.LoaderDescriber;
import org.mule.runtime.extension.api.loader.ExtensionLoadingContext;
import org.mule.runtime.extension.api.loader.ExtensionModelLoader;
import org.mule.runtime.module.artifact.classloader.ArtifactClassLoader;
import org.mule.tck.junit4.AbstractMuleTestCase;
import org.mule.tck.size.SmallTest;
import java.io.BufferedWriter;
import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.file.Paths;
import java.util.Optional;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
@SmallTest
@RunWith(MockitoJUnitRunner.class)
public class MuleExtensionModelLoaderManagerTestCase extends AbstractMuleTestCase {
private static final String ID = "ID";
@Mock
private LoaderDescriber loaderDescriber;
@Mock
private ArtifactClassLoader containerClassLoader;
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
@Before
public void before() {
when(loaderDescriber.getId()).thenReturn(ID);
}
@After
public void after() {
verify(containerClassLoader).getClassLoader();
}
@Test
public void noExtensionModelLoaderRegistered() throws MuleException {
URLClassLoader emptyClassLoader = new URLClassLoader(new URL[0], getLauncherClassLoader(this.getClass().getClassLoader()));
when(containerClassLoader.getClassLoader()).thenReturn(emptyClassLoader);
MuleExtensionModelLoaderManager manager = new MuleExtensionModelLoaderManager(containerClassLoader);
manager.start();
Optional<ExtensionModelLoader> loader = manager.getExtensionModelLoader(loaderDescriber);
assertThat(loader.isPresent(), is(false));
verify(loaderDescriber).getId();
}
@Test
public void getExtensionModelLoaderRegistered() throws Exception {
File serviceFolder = new File(temporaryFolder.newFolder("META-INF"), "services");
assertThat(serviceFolder.mkdirs(), is(true));
File serviceFile = new File(serviceFolder, ExtensionModelLoader.class.getCanonicalName());
try (BufferedWriter writer = newBufferedWriter(Paths.get(serviceFile.toURI()))) {
writer.write(TestExtensionModelLoader.class.getName());
writer.newLine();
}
when(containerClassLoader.getClassLoader())
.thenReturn(new URLClassLoader(new URL[] {temporaryFolder.getRoot().toURI().toURL()}, this.getClass().getClassLoader()));
MuleExtensionModelLoaderManager manager = new MuleExtensionModelLoaderManager(containerClassLoader);
manager.start();
Optional<ExtensionModelLoader> loader = manager.getExtensionModelLoader(loaderDescriber);
assertThat(loader.isPresent(), is(true));
assertThat(loader.get(), instanceOf(TestExtensionModelLoader.class));
verify(loaderDescriber, times(2)).getId();
}
private ClassLoader getLauncherClassLoader(ClassLoader classLoader) {
ClassLoader launcherClassLoader = classLoader;
while (classLoader != null) {
launcherClassLoader = classLoader;
classLoader = classLoader.getParent();
}
return launcherClassLoader;
}
public static class TestExtensionModelLoader extends ExtensionModelLoader {
@Override
public String getId() {
return ID;
}
@Override
protected void declareExtension(ExtensionLoadingContext extensionLoadingContext) {}
}
}