protected void loadComponentsOnStart()
throws PlexusConfigurationException, ComponentLookupException {
PlexusConfiguration[] loadOnStartComponents =
configuration.getChild("load-on-start").getChildren("component");
getLogger().debug("Found " + loadOnStartComponents.length + " components to load on start");
for (int i = 0; i < loadOnStartComponents.length; i++) {
String role = loadOnStartComponents[i].getChild("role").getValue(null);
String roleHint = loadOnStartComponents[i].getChild("role-hint").getValue();
if (role == null) {
throw new PlexusConfigurationException("Missing 'role' element from load-on-start.");
}
if (roleHint == null) {
getLogger().info("Loading on start [role]: " + "[" + role + "]");
lookup(role);
} else if (roleHint.equals("*")) {
getLogger().info("Loading on start all components with [role]: " + "[" + role + "]");
lookupList(role);
} else {
getLogger().info("Loading on start [role,roleHint]: " + "[" + role + "," + roleHint + "]");
lookup(role, roleHint);
}
}
}
protected void initializePhases() throws PlexusContainerException {
PlexusConfiguration initializationConfiguration =
configuration.getChild("container-initialization");
ContainerInitializationContext initializationContext =
new ContainerInitializationContext(this, classWorld, containerRealm, configuration);
// PLXAPI: I think we might only ever need one of these so maybe we can create it with a
// constructor
// and store it.
ComponentConfigurator c = new BasicComponentConfigurator();
try {
c.configureComponent(this, initializationConfiguration, containerRealm);
} catch (ComponentConfigurationException e) {
throw new PlexusContainerException(
"Error setting container initialization initializationPhases.", e);
}
for (Iterator iterator = initializationPhases.iterator(); iterator.hasNext(); ) {
ContainerInitializationPhase phase = (ContainerInitializationPhase) iterator.next();
try {
phase.execute(initializationContext);
} catch (ContainerInitializationException e) {
throw new PlexusContainerException("Error initializaing container in " + phase + ".", e);
}
}
}
// 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);
}
}
}
public void processConfiguration(
ConverterLookup converterLookup,
Object object,
ClassLoader classLoader,
PlexusConfiguration configuration,
ExpressionEvaluator expressionEvaluator)
throws ComponentConfigurationException {
int items = configuration.getChildCount();
for (int i = 0; i < items; i++) {
PlexusConfiguration childConfiguration = configuration.getChild(i);
String elementName = childConfiguration.getName();
ComponentValueSetter valueSetter =
new ComponentValueSetter(fromXML(elementName), object, converterLookup);
valueSetter.configure(childConfiguration, classLoader, expressionEvaluator);
/*
Object value = valueSetter.getConverter().fromConfiguration(
converterLookup, childConfiguration, valueSetter.getValueType(),
object.getClass(), classLoader, expressionEvaluator
);
if ( value != null )
{
valueSetter.setValue( value );
}
*/
}
}
/**
* Process any additional component configuration files that have been specified. The specified
* directory is scanned recursively so configurations can be within nested directories to help
* with component organization.
*/
private void processConfigurationsDirectory() throws PlexusConfigurationException {
String s = configuration.getChild("configurations-directory").getValue(null);
if (s != null) {
PlexusConfiguration componentsConfiguration = configuration.getChild("components");
File configurationsDirectory = new File(s);
if (configurationsDirectory.exists() && configurationsDirectory.isDirectory()) {
List componentConfigurationFiles;
try {
componentConfigurationFiles =
FileUtils.getFiles(configurationsDirectory, "**/*.conf", "**/*.xml");
} catch (IOException e) {
throw new PlexusConfigurationException("Unable to locate configuration files", e);
}
for (Iterator i = componentConfigurationFiles.iterator(); i.hasNext(); ) {
File componentConfigurationFile = (File) i.next();
Reader reader = null;
try {
reader = ReaderFactory.newXmlReader(componentConfigurationFile);
PlexusConfiguration componentConfiguration =
PlexusTools.buildConfiguration(
componentConfigurationFile.getAbsolutePath(),
getInterpolationConfigurationReader(reader));
componentsConfiguration.addChild(componentConfiguration.getChild("components"));
} catch (FileNotFoundException e) {
throw new PlexusConfigurationException(
"File " + componentConfigurationFile + " disappeared before processing", e);
} catch (IOException e) {
throw new PlexusConfigurationException(
"IO error while reading " + componentConfigurationFile, e);
} finally {
IOUtil.close(reader);
}
}
}
}
}
private void initializeCoreComponents()
throws ComponentConfigurationException, ComponentRepositoryException, ContextException {
BasicComponentConfigurator configurator = new BasicComponentConfigurator();
PlexusConfiguration c = configuration.getChild("component-repository");
processCoreComponentConfiguration("component-repository", configurator, c);
componentRepository.configure(configuration);
componentRepository.setClassRealm(plexusRealm);
componentRepository.initialize();
// Lifecycle handler manager
c = configuration.getChild("lifecycle-handler-manager");
processCoreComponentConfiguration("lifecycle-handler-manager", configurator, c);
lifecycleHandlerManager.initialize();
// Component manager manager
c = configuration.getChild("component-manager-manager");
processCoreComponentConfiguration("component-manager-manager", configurator, c);
componentManagerManager.setLifecycleHandlerManager(lifecycleHandlerManager);
// Component discoverer manager
c = configuration.getChild("component-discoverer-manager");
processCoreComponentConfiguration("component-discoverer-manager", configurator, c);
componentDiscovererManager.initialize();
// Component factory manager
c = configuration.getChild("component-factory-manager");
processCoreComponentConfiguration("component-factory-manager", configurator, c);
if (componentFactoryManager instanceof Contextualizable) {
Context context = getContext();
context.put(PlexusConstants.PLEXUS_KEY, this);
((Contextualizable) componentFactoryManager).contextualize(getContext());
}
// Component factory manager
c = configuration.getChild("component-composer-manager");
processCoreComponentConfiguration("component-composer-manager", configurator, c);
}
private void initializeSystemProperties() throws PlexusConfigurationException {
PlexusConfiguration[] systemProperties =
configuration.getChild("system-properties").getChildren("property");
for (int i = 0; i < systemProperties.length; ++i) {
String name = systemProperties[i].getAttribute("name");
String value = systemProperties[i].getAttribute("value");
if (name == null) {
throw new PlexusConfigurationException("Missing 'name' attribute in 'property' tag. ");
}
if (value == null) {
throw new PlexusConfigurationException("Missing 'value' attribute in 'property' tag. ");
}
System.getProperties().setProperty(name, value);
getLogger().info("Setting system property: [ " + name + ", " + value + " ]");
}
}
public static ComponentSetDescriptor buildComponentSet(PlexusConfiguration c) throws Exception {
ComponentSetDescriptor csd = new ComponentSetDescriptor();
// ----------------------------------------------------------------------
// Components
// ----------------------------------------------------------------------
PlexusConfiguration[] components = c.getChild("components").getChildren("component");
for (int i = 0; i < components.length; i++) {
PlexusConfiguration component = components[i];
csd.addComponentDescriptor(buildComponentDescriptor(component));
}
// ----------------------------------------------------------------------
// Dependencies
// ----------------------------------------------------------------------
PlexusConfiguration[] dependencies = c.getChild("dependencies").getChildren("dependency");
for (int i = 0; i < dependencies.length; i++) {
PlexusConfiguration d = dependencies[i];
ComponentDependency cd = new ComponentDependency();
cd.setArtifactId(d.getChild("artifact-id").getValue());
cd.setGroupId(d.getChild("group-id").getValue());
cd.setType(d.getChild("type").getValue());
cd.setVersion(d.getChild("version").getValue());
csd.addDependency(cd);
}
return csd;
}
public Object fromConfiguration(
ConverterLookup converterLookup,
PlexusConfiguration configuration,
Class type,
Class baseType,
ClassLoader classLoader,
ExpressionEvaluator expressionEvaluator,
ConfigurationListener listener)
throws ComponentConfigurationException {
Object retValue = fromExpression(configuration, expressionEvaluator, type);
if (retValue != null) {
return retValue;
}
Class implementation = getClassForImplementationHint(null, configuration, classLoader);
if (implementation != null) {
retValue = instantiateObject(implementation);
} else {
// we can have 2 cases here:
// - provided collection class which is not abstract
// like Vector, ArrayList, HashSet - so we will just instantantiate it
// - we have an abtract class so we have to use default collection type
int modifiers = type.getModifiers();
if (Modifier.isAbstract(modifiers)) {
retValue = getDefaultCollection(type);
} else {
try {
retValue = type.newInstance();
} catch (IllegalAccessException e) {
String msg =
"An attempt to convert configuration entry "
+ configuration.getName()
+ "' into "
+ type
+ " object failed: "
+ e.getMessage();
throw new ComponentConfigurationException(msg, e);
} catch (InstantiationException e) {
String msg =
"An attempt to convert configuration entry "
+ configuration.getName()
+ "' into "
+ type
+ " object failed: "
+ e.getMessage();
throw new ComponentConfigurationException(msg, e);
}
}
}
// now we have collection and we have to add some objects to it
for (int i = 0; i < configuration.getChildCount(); i++) {
PlexusConfiguration c = configuration.getChild(i);
Class childType = getImplementationClass(null, baseType, c, classLoader);
ConfigurationConverter converter = converterLookup.lookupConverterForType(childType);
Object object =
converter.fromConfiguration(
converterLookup, c, childType, baseType, classLoader, expressionEvaluator, listener);
Collection collection = (Collection) retValue;
collection.add(object);
}
return retValue;
}
public static ComponentDescriptor buildComponentDescriptor(PlexusConfiguration configuration)
throws Exception {
ComponentDescriptor cd = new ComponentDescriptor();
cd.setRole(configuration.getChild("role").getValue());
cd.setRoleHint(configuration.getChild("role-hint").getValue());
cd.setImplementation(configuration.getChild("implementation").getValue());
cd.setVersion(configuration.getChild("version").getValue());
cd.setComponentType(configuration.getChild("component-type").getValue());
cd.setInstantiationStrategy(configuration.getChild("instantiation-strategy").getValue());
cd.setLifecycleHandler(configuration.getChild("lifecycle-handler").getValue());
cd.setComponentProfile(configuration.getChild("component-profile").getValue());
cd.setComponentComposer(configuration.getChild("component-composer").getValue());
cd.setComponentFactory(configuration.getChild("component-factory").getValue());
cd.setDescription(configuration.getChild("description").getValue());
cd.setAlias(configuration.getChild("alias").getValue());
String s = configuration.getChild("isolated-realm").getValue();
if (s != null) {
cd.setIsolatedRealm(s.equals("true") ? true : false);
}
// ----------------------------------------------------------------------
// Here we want to look for directives for inlining external
// configurations. we probably want to take them from files or URLs.
// ----------------------------------------------------------------------
cd.setConfiguration(configuration.getChild("configuration"));
// ----------------------------------------------------------------------
// Requirements
// ----------------------------------------------------------------------
PlexusConfiguration[] requirements =
configuration.getChild("requirements").getChildren("requirement");
for (int i = 0; i < requirements.length; i++) {
PlexusConfiguration requirement = requirements[i];
ComponentRequirement cr = new ComponentRequirement();
cr.setRole(requirement.getChild("role").getValue());
cr.setRoleHint(requirement.getChild("role-hint").getValue());
cr.setFieldName(requirement.getChild("field-name").getValue());
cd.addRequirement(cr);
}
return cd;
}
public Object fromConfiguration(
ConverterLookup converterLookup,
PlexusConfiguration configuration,
Class type,
Class baseType,
ClassLoader classLoader,
ExpressionEvaluator expressionEvaluator)
throws ComponentConfigurationException {
Object retValue = fromExpression(configuration, expressionEvaluator, type);
if (retValue != null) {
return retValue;
}
Class implementation = getClassForImplementationHint(null, configuration, classLoader);
if (implementation != null) {
retValue = instantiateObject(implementation);
} else {
// we can have 2 cases here:
// - provided collection class which is not abstract
// like Vector, ArrayList, HashSet - so we will just instantantiate it
// - we have an abtract class so we have to use default collection type
int modifiers = type.getModifiers();
if (Modifier.isAbstract(modifiers)) {
retValue = getDefaultCollection(type);
} else {
try {
retValue = type.newInstance();
} catch (IllegalAccessException e) {
String msg =
"An attempt to convert configuration entry "
+ configuration.getName()
+ "' into "
+ type
+ " object failed: "
+ e.getMessage();
throw new ComponentConfigurationException(msg, e);
} catch (InstantiationException e) {
String msg =
"An attempt to convert configuration entry "
+ configuration.getName()
+ "' into "
+ type
+ " object failed: "
+ e.getMessage();
throw new ComponentConfigurationException(msg, e);
}
}
}
// now we have collection and we have to add some objects to it
for (int i = 0; i < configuration.getChildCount(); i++) {
PlexusConfiguration c = configuration.getChild(i);
// Object o = null;
String configEntry = c.getName();
String name = StringUtils.capitalizeFirstLetter(fromXML(configEntry));
Class childType = getClassForImplementationHint(null, c, classLoader);
if (childType == null) {
// Some classloaders don't create Package objects for classes
// so we have to resort to slicing up the class name
String baseTypeName = baseType.getName();
int lastDot = baseTypeName.lastIndexOf('.');
String className;
if (lastDot == -1) {
className = name;
} else {
String basePackage = baseTypeName.substring(0, lastDot);
className = basePackage + "." + name;
}
childType = loadClass(className, classLoader);
}
ConfigurationConverter converter = converterLookup.lookupConverterForType(childType);
Object object =
converter.fromConfiguration(
converterLookup, c, childType, baseType, classLoader, expressionEvaluator);
Collection collection = (Collection) retValue;
collection.add(object);
}
return retValue;
}
