// TODO: Do not swallow exception
public void initializeResources() throws PlexusConfigurationException {
PlexusConfiguration[] resourceConfigs = configuration.getChild("resources").getChildren();
for (int i = 0; i < resourceConfigs.length; ++i) {
try {
String name = resourceConfigs[i].getName();
if (name.equals("jar-repository")) {
addJarRepository(new File(resourceConfigs[i].getValue()));
} else if (name.equals("directory")) {
File directory = new File(resourceConfigs[i].getValue());
if (directory.exists() && directory.isDirectory()) {
plexusRealm.addConstituent(directory.toURL());
}
} else {
getLogger().warn("Unknown resource type: " + name);
}
} catch (MalformedURLException e) {
getLogger()
.error(
"Error configuring resource: "
+ resourceConfigs[i].getName()
+ "="
+ resourceConfigs[i].getValue(),
e);
}
}
}
private void initializeClassWorlds() throws DuplicateRealmException {
if (classWorld == null) {
classWorld = new ClassWorld();
}
// Create a name for our application if one doesn't exist.
initializeName();
if (coreRealm == null) {
try {
coreRealm = classWorld.getRealm("plexus.core");
} catch (NoSuchRealmException e) {
/* We are being loaded with someone who hasn't
* given us any classworlds realms. In this case,
* we want to use the classes already in the
* ClassLoader for our realm.
*/
coreRealm =
classWorld.newRealm("plexus.core", Thread.currentThread().getContextClassLoader());
}
}
// We are in a non-embedded situation
if (plexusRealm == null) {
try {
plexusRealm = coreRealm.getWorld().getRealm("plexus.core.maven");
} catch (NoSuchRealmException e) {
// plexusRealm = coreRealm.getWorld().newRealm( "plexus.core.maven" );
// If no app realm can be found then we will make the plexusRealm
// the same as the app realm.
plexusRealm = coreRealm;
}
// plexusRealm.importFrom( coreRealm.getId(), "" );
addContextValue("common.classloader", plexusRealm.getClassLoader());
Thread.currentThread().setContextClassLoader(plexusRealm.getClassLoader());
}
}
public ScriptFactory(
final Logger logger,
final ClassRealm classRealm,
final File jrubyJar,
final List<String> classpathElements,
final boolean fork)
throws ScriptException, IOException {
this.logger = logger;
this.jrubyJar = jrubyJar;
this.classpathElements =
classpathElements == null ? NO_CLASSPATH : Collections.unmodifiableList(classpathElements);
this.fork = fork;
if (classRealm != null) {
ClassRealm jruby;
try {
jruby = classRealm.getWorld().getRealm("jruby");
} catch (final NoSuchRealmException e) {
try {
jruby = classRealm.getWorld().newRealm("jruby");
jruby.addConstituent(jrubyJar.toURI().toURL());
} catch (final DuplicateRealmException ee) {
throw new ScriptException("could not setup classrealm for jruby", ee);
}
}
this.classRealm = jruby;
} else {
this.classRealm = null;
}
if (fork) {
this.launcher = new AntLauncher(logger, this);
} else {
this.launcher = new EmbeddedLauncher(logger, this);
}
}
private ComponentInstantiationException makeException(
ClassRealm componentClassRealm,
ComponentDescriptor componentDescriptor,
Class implementationClass,
Throwable e) {
// ----------------------------------------------------------------------
// Display the realm when there is an error, We should probably return a string here so we
// can incorporate this into the error message for easy debugging.
// ----------------------------------------------------------------------
componentClassRealm.display();
String msg = "Could not instanciate component: " + componentDescriptor.getHumanReadableKey();
return new ComponentInstantiationException(msg, e);
}
public void addJarResource(File jar) throws PlexusContainerException {
try {
plexusRealm.addConstituent(jar.toURL());
if (isStarted()) {
discoverComponents(plexusRealm);
}
} catch (MalformedURLException e) {
throw new PlexusContainerException("Cannot add jar resource: " + jar + " (bad URL)", e);
} catch (PlexusConfigurationException e) {
throw new PlexusContainerException(
"Cannot add jar resource: " + jar + " (error discovering new components)", e);
} catch (ComponentRepositoryException e) {
throw new PlexusContainerException(
"Cannot add jar resource: " + jar + " (error discovering new components)", e);
}
}
private ClassRealm cloneClassRealm(
final File jrubyJar, final List<String> classpathElements, final ClassRealm classRealm)
throws ScriptException {
// TODO how to reuse the plugin realm ?
// for (final String classpath : classpathElements) {
// if (classpath.equals(jrubyJar.getAbsolutePath())) {
// return null;
// }
// }
ClassRealm newClassRealm;
try {
ClassRealm jruby;
try {
jruby = classRealm.getWorld().getRealm("jruby");
} catch (final NoSuchRealmException e) {
jruby = classRealm.getWorld().newRealm("jruby");
jruby.addConstituent(jrubyJar.toURI().toURL());
}
try {
jruby.getWorld().disposeRealm("pom");
} catch (final NoSuchRealmException e) {
// ignored
}
newClassRealm = jruby.createChildRealm("pom");
for (final String classpath : classpathElements) {
if (!classpath.contains("jruby-complete")) {
newClassRealm.addConstituent(new File(classpath).toURI().toURL());
}
}
} catch (final DuplicateRealmException e) {
throw new ScriptException("error in naming realms", e);
} catch (final MalformedURLException e) {
throw new ScriptException("hmm. found some malformed URL", e);
}
return newClassRealm;
}
public Object newInstance(
ComponentDescriptor componentDescriptor, ClassRealm classRealm, PlexusContainer container)
throws ComponentInstantiationException {
Class implementationClass = null;
try {
String implementation = componentDescriptor.getImplementation();
implementationClass = classRealm.loadClass(implementation);
int modifiers = implementationClass.getModifiers();
if (Modifier.isInterface(modifiers)) {
throw new ComponentInstantiationException(
"Cannot instanciate implementation '"
+ implementation
+ "' because the class is a interface.");
}
if (Modifier.isAbstract(modifiers)) {
throw new ComponentInstantiationException(
"Cannot instanciate implementation '"
+ implementation
+ "' because the class is abstract.");
}
Object instance = implementationClass.newInstance();
return instance;
} catch (InstantiationException e) {
throw makeException(classRealm, componentDescriptor, implementationClass, e);
} catch (ClassNotFoundException e) {
throw makeException(classRealm, componentDescriptor, implementationClass, e);
} catch (IllegalAccessException e) {
throw makeException(classRealm, componentDescriptor, implementationClass, e);
} catch (LinkageError e) {
throw makeException(classRealm, componentDescriptor, implementationClass, e);
}
}
protected void initializeConfiguration()
throws ConfigurationProcessingException, ConfigurationResourceNotFoundException,
PlexusConfigurationException {
// System userConfiguration
InputStream is = coreRealm.getResourceAsStream(BOOTSTRAP_CONFIGURATION);
if (is == null) {
throw new IllegalStateException(
"The internal default plexus-bootstrap.xml is missing. "
+ "This is highly irregular, your plexus JAR is "
+ "most likely corrupt.");
}
PlexusConfiguration systemConfiguration =
PlexusTools.buildConfiguration(BOOTSTRAP_CONFIGURATION, new InputStreamReader(is));
// ----------------------------------------------------------------------
//
// ----------------------------------------------------------------------
// ----------------------------------------------------------------------
//
// ----------------------------------------------------------------------
// Some of this could probably be collapsed as having a plexus.xml in your
// META-INF/plexus directory is probably a better solution then specifying
// a configuration with an URL but I'm leaving the configuration by URL
// as folks might be using it ... I made this change to accomodate Maven
// but I think it's better to discover a configuration in a standard
// place.
configuration = systemConfiguration;
PlexusXmlComponentDiscoverer discoverer = new PlexusXmlComponentDiscoverer();
PlexusConfiguration plexusConfiguration =
discoverer.discoverConfiguration(getContext(), plexusRealm);
if (plexusConfiguration != null) {
configuration = PlexusConfigurationMerger.merge(plexusConfiguration, configuration);
processConfigurationsDirectory();
}
if (configurationReader != null) {
// User userConfiguration
PlexusConfiguration userConfiguration =
PlexusTools.buildConfiguration(
"<User Specified Configuration Reader>",
getInterpolationConfigurationReader(configurationReader));
// Merger of systemConfiguration and user userConfiguration
configuration = PlexusConfigurationMerger.merge(userConfiguration, configuration);
processConfigurationsDirectory();
}
// ---------------------------------------------------------------------------
// Now that we have the configuration we will use the ConfigurationProcessor
// to inline any external configuration instructions.
//
// At his point the variables in the configuration have already been
// interpolated so we can send in an empty Map because the context
// values are already there.
// ---------------------------------------------------------------------------
ConfigurationProcessor p = new ConfigurationProcessor();
p.addConfigurationResourceHandler(new FileConfigurationResourceHandler());
p.addConfigurationResourceHandler(new DirectoryConfigurationResourceHandler());
configuration = p.process(configuration, Collections.EMPTY_MAP);
}
public PlexusContainer createChildContainer(
String name, List classpathJars, Map context, List discoveryListeners)
throws PlexusContainerException {
if (hasChildContainer(name)) {
throw new DuplicateChildContainerException(getName(), name);
}
DefaultPlexusContainer child = new DefaultPlexusContainer();
child.classWorld = classWorld;
ClassRealm childRealm = null;
String childRealmId = getName() + ".child-container[" + name + "]";
try {
childRealm = classWorld.getRealm(childRealmId);
} catch (NoSuchRealmException e) {
try {
childRealm = classWorld.newRealm(childRealmId);
} catch (DuplicateRealmException impossibleError) {
getLogger()
.error(
"An impossible error has occurred. After getRealm() failed, newRealm() "
+ "produced duplication error on same id!",
impossibleError);
}
}
childRealm.setParent(plexusRealm);
child.coreRealm = childRealm;
child.plexusRealm = childRealm;
child.setName(name);
child.setParentPlexusContainer(this);
// ----------------------------------------------------------------------
// Set all the child elements from the parent that were set
// programmatically.
// ----------------------------------------------------------------------
child.setLoggerManager(loggerManager);
for (Iterator it = context.entrySet().iterator(); it.hasNext(); ) {
Map.Entry entry = (Map.Entry) it.next();
child.addContextValue(entry.getKey(), entry.getValue());
}
child.initialize();
for (Iterator it = classpathJars.iterator(); it.hasNext(); ) {
Object next = it.next();
File jar = (File) next;
child.addJarResource(jar);
}
for (Iterator it = discoveryListeners.iterator(); it.hasNext(); ) {
ComponentDiscoveryListener listener = (ComponentDiscoveryListener) it.next();
child.registerComponentDiscoveryListener(listener);
}
child.start();
childContainers.put(name, child);
return child;
}
