/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.openejb;
import static org.apache.openejb.util.URLs.toFile;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import junit.framework.TestResult;
import org.apache.openejb.loader.IO;
import org.apache.xbean.asm.ClassReader;
import org.apache.xbean.asm.ClassWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
public class DependenceValidationTest extends TestCase {
private Map<String, Map<String, Integer>> depsOfPackages;
private TestResult results;
public void run(TestResult testResult) {
results = testResult;
super.run(testResult);
}
public void testAssembler() throws Exception {
DependencyVisitor dependencyVisitor = new DependencyVisitor();
URL resource = DependenceValidationTest.class.getResource("/org/apache/openejb/OpenEJB.class");
File file = toFile(resource);
dir(file.getParentFile(), dependencyVisitor);
depsOfPackages = dependencyVisitor.groups;
// Nothing may depend on the Assembler except the config code
String dynamicAssembler = "org.apache.openejb.assembler.dynamic";
assertNotDependentOn("org.apache.openejb", "org.apache.openejb.assembler.classic", "org.apache.openejb.assembler", "org.apache.openejb.config", "org.apache.openejb.assembler.dynamic", "org.apache.openejb.assembler.classic.cmd", "org.apache.openejb.cdi", "org.apache.openejb.junit");
// Nothing may depend on the Dynamic Assembler
assertNotDependentOn("org.apache.openejb", dynamicAssembler);
// Nothing may depend on the JAXB Tree except the Config code
assertNotDependentOn("org.apache.openejb", "org.apache.openejb.jee", "org.apache.openejb.config", "org.apache.openejb.config.rules", "org.apache.openejb.config.sys", "org.apache.openejb.cdi", "org.apache.openejb.junit");
// Nothing may depend on the Config code except it's subpackages
assertNotDependentOn("org.apache.openejb", "org.apache.openejb.config", "org.apache.openejb.config.rules", "org.apache.openejb.config.sys", "org.apache.openejb.assembler", "org.apache.openejb.cdi", "org.apache.openejb.junit", dynamicAssembler);
// The assembler may not be dependent on the config factory Implementation
assertNotDependentOn("org.apache.openejb.assembler.classic", "org.apache.openejb.config");
// Nothing should be dependent on any one particular container implementation (except the Dynamic Assembler)
// TODO: This needs fixing... containers are supposed to be pluggable
// assertNotDependentOn("org.apache.openejb", "org.apache.openejb.core.stateless", dynamicAssembler);
// assertNotDependentOn("org.apache.openejb", "org.apache.openejb.core.stateful", dynamicAssembler);
// assertNotDependentOn("org.apache.openejb", "org.apache.openejb.core.entity", dynamicAssembler);
}
private void assertNotDependentOn(String referringPacakge, String referredPackage, String... exemptionsArray) {
if (referringPacakge.equals(referredPackage)) return;
List<String> exemptions = new ArrayList<String>(Arrays.asList(exemptionsArray));
exemptions.add(referredPackage);
for (Map.Entry<String, Map<String, Integer>> entry : depsOfPackages.entrySet()) {
String packageName = entry.getKey();
if (packageName.startsWith(referringPacakge) && !exemptions.contains(packageName)) {
try {
Map<String, Integer> deps = entry.getValue();
if (deps.containsKey(referredPackage)) {
int references = deps.get(referredPackage);
assertEquals(packageName + " should have no dependencies on " + referredPackage, 0, references);
}
} catch (AssertionFailedError e) {
results.addFailure(this, e);
}
}
}
}
private static void dir(File dir, DependencyVisitor dependencyVisitor) {
for (File file : dir.listFiles()) {
if (file.isDirectory()) {
dir(file, dependencyVisitor);
} else if (file.getName().endsWith(".class")) {
file(file, dependencyVisitor);
}
}
}
private static void file(File file, DependencyVisitor dependencyVisitor) {
try {
final InputStream in = IO.read(file);
try {
ClassReader classReader = new ClassReader(in);
classReader.accept(dependencyVisitor, ClassWriter.COMPUTE_MAXS);
} finally {
IO.close(in);
}
} catch (IOException e) {
e.printStackTrace();
fail(e.getMessage());
}
}
}