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package org.glassfish.jersey.server.internal;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.glassfish.jersey.internal.ServiceFinder;
import org.glassfish.jersey.server.JarUtils;
import org.junit.Test;
import static org.glassfish.jersey.server.JarUtils.createJarFile;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author Michal Gajdos
*/
public class ServiceFinderTest {
@Test
public void testJarTopLevel() throws Exception {
final Map<String, String> map = new HashMap<>();
map.put("org/glassfish/jersey/server/config/jaxrs-components", "META-INF/services/jaxrs-components");
map.put("org/glassfish/jersey/server/config/toplevel/PublicRootResourceClass.class",
"org/glassfish/jersey/server/config/toplevel/PublicRootResourceClass.class");
final String path = ServiceFinderTest.class.getResource("").getPath();
final ClassLoader classLoader = createClassLoader(path.substring(0, path.indexOf("org")), map);
final ServiceFinder<?> finder = createServiceFinder(classLoader, "jaxrs-components");
final Set<Class<?>> s = new HashSet<>();
Collections.addAll(s, finder.toClassArray());
assertTrue(s.contains(classLoader.loadClass("org.glassfish.jersey.server.config.toplevel.PublicRootResourceClass")));
assertEquals(1, s.size());
}
private ServiceFinder<?> createServiceFinder(final ClassLoader cl, final String serviceName) throws IOException {
final ClassLoader ocl = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(cl);
try {
final Class<?> prc = cl.loadClass("org.glassfish.jersey.internal.ServiceFinder");
final Method m = prc.getMethod("find", String.class);
return (ServiceFinder<?>) m.invoke(null, serviceName);
// return new PackagesResourceConfig(packages);
} catch (final Exception e) {
throw new RuntimeException(e);
} finally {
Thread.currentThread().setContextClassLoader(ocl);
}
}
private ClassLoader createClassLoader(final String base, final Map<String, String> entries) throws IOException {
return createClassLoader(JarUtils.Suffix.jar, base, entries);
}
private ClassLoader createClassLoader(final JarUtils.Suffix s, final String base, final Map<String,
String> entries) throws IOException {
final URL[] us = new URL[1];
us[0] = createJarFile(s, base, entries).toURI().toURL();
return new PackageClassLoader(us);
}
private static class PackageClassLoader extends URLClassLoader {
PackageClassLoader(final URL[] urls) {
super(urls, null);
}
public Class<?> findClass(final String name) throws ClassNotFoundException {
try {
return super.findClass(name);
} catch (final ClassNotFoundException e) {
return getSystemClassLoader().loadClass(name);
}
}
}
}