private void processCoreComponentConfiguration(
String role, BasicComponentConfigurator configurator, PlexusConfiguration c)
throws ComponentConfigurationException {
String implementation = c.getAttribute("implementation", null);
if (implementation == null) {
String msg =
"Core component: '"
+ role
+ "' + which is needed by plexus to function properly cannot "
+ "be instantiated. Implementation attribute was not specified in plexus.conf."
+ "This is highly irregular, your plexus JAR is most likely corrupt.";
throw new ComponentConfigurationException(msg);
}
ComponentDescriptor componentDescriptor = new ComponentDescriptor();
componentDescriptor.setRole(role);
componentDescriptor.setImplementation(implementation);
PlexusConfiguration configuration = new XmlPlexusConfiguration("configuration");
configuration.addChild(c);
try {
configurator.configureComponent(this, configuration, plexusRealm);
} catch (ComponentConfigurationException e) {
// TODO: don't like rewrapping the same exception, but better than polluting this all through
// the config code
String message = "Error configuring component: " + componentDescriptor.getHumanReadableKey();
throw new ComponentConfigurationException(message, e);
}
}
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;
}
