/*
* 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.aries.subsystem.itests;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.aries.subsystem.core.archive.Grammar;
import org.eclipse.equinox.region.Region;
import org.junit.Before;
import org.junit.Test;
import org.osgi.service.subsystem.Subsystem;
import org.osgi.service.subsystem.SubsystemConstants;
/*
* This test ensures that names given to subsystem regions follow a predictable
* pattern and will not inadvertently change without a discussion. At least one
* major Apache Aries Subsystems consumer has a business requirement relying on
* it.
*
* The current naming convention has the following pattern:
*
* subsystemSymbolicName;subsystemVersion;subsystemType;subsystemId
*/
public class RegionNameTest extends SubsystemTest {
/*
* Subsystem-SymbolicName: application.a.esa
*
* Included In Archive
* feature.a.esa
*/
private static final String APPLICATION_A = "application.a.esa";
/*
* Subsystem-SymbolicName: composite.a.esa
* Subsystem-Type: osgi.subsystem.composite
* Subsystem-Content: feature.a.esa
*/
private static final String COMPOSITE_A = "composite.a.esa";
/*
* Subsystem-SymbolicName: feature.a.esa
* Subsystem-Type: osgi.subsystem.feature
*/
private static final String FEATURE_A = "feature.a.esa";
private static final String regexp = Grammar.SYMBOLICNAME + ';' +
Grammar.VERSION + ";(?:" +
SubsystemConstants.SUBSYSTEM_TYPE_APPLICATION + '|' +
SubsystemConstants.SUBSYSTEM_TYPE_COMPOSITE + ");[0-9]+";
private static final Pattern pattern = Pattern.compile(regexp);
private static boolean createdTestFiles;
@Before
public void createTestFiles() throws Exception {
if (createdTestFiles)
return;
createFeatureA();
createApplicationA();
createCompositeA();
createdTestFiles = true;
}
private void createApplicationA() throws IOException {
createApplicationAManifest();
createSubsystem(APPLICATION_A, FEATURE_A);
}
private void createApplicationAManifest() throws IOException {
Map<String, String> attributes = new HashMap<String, String>();
attributes.put(SubsystemConstants.SUBSYSTEM_SYMBOLICNAME, APPLICATION_A);
createManifest(APPLICATION_A + ".mf", attributes);
}
private void createCompositeA() throws IOException {
createCompositeAManifest();
createSubsystem(COMPOSITE_A, FEATURE_A);
}
private void createCompositeAManifest() throws IOException {
Map<String, String> attributes = new HashMap<String, String>();
attributes.put(SubsystemConstants.SUBSYSTEM_SYMBOLICNAME, COMPOSITE_A);
attributes.put(SubsystemConstants.SUBSYSTEM_TYPE, SubsystemConstants.SUBSYSTEM_TYPE_COMPOSITE);
attributes.put(SubsystemConstants.SUBSYSTEM_CONTENT, FEATURE_A + ";version=\"[0,0]\";type=osgi.subsystem.feature");
createManifest(COMPOSITE_A + ".mf", attributes);
}
private void createFeatureA() throws IOException {
createFeatureAManifest();
createSubsystem(FEATURE_A);
}
private void createFeatureAManifest() throws IOException {
Map<String, String> attributes = new HashMap<String, String>();
attributes.put(SubsystemConstants.SUBSYSTEM_SYMBOLICNAME, FEATURE_A);
attributes.put(SubsystemConstants.SUBSYSTEM_TYPE, SubsystemConstants.SUBSYSTEM_TYPE_FEATURE);
createManifest(FEATURE_A + ".mf", attributes);
}
@Test
public void testApplicationRegionName() throws Exception {
Subsystem applicationA = installSubsystemFromFile(APPLICATION_A);
try {
testRegionName(applicationA);
Subsystem featureA = getChild(applicationA, FEATURE_A, null, SubsystemConstants.SUBSYSTEM_TYPE_FEATURE);
testRegionName(featureA);
}
finally {
uninstallSubsystemSilently(applicationA);
}
}
@Test
public void testCompositeRegionName() throws Exception {
Subsystem compositeA = installSubsystemFromFile(COMPOSITE_A);
try {
testRegionName(compositeA);
Subsystem featureA = getChild(compositeA, FEATURE_A, null, SubsystemConstants.SUBSYSTEM_TYPE_FEATURE);
testRegionName(featureA);
}
finally {
uninstallSubsystemSilently(compositeA);
}
}
private void testRegionName(Subsystem subsystem) throws Exception {
Method getRegion = subsystem.getClass().getDeclaredMethod("getRegion");
getRegion.setAccessible(true);
Region region = (Region)getRegion.invoke(subsystem);
String regionName = region.getName();
Matcher matcher = pattern.matcher(regionName);
boolean matches = matcher.matches();
assertTrue("Invalid region name", matches);
}
}