[jbossseam-issues] [JBoss JIRA] Closed: (JBSEAM-111) Check for duplicate component name on registration

Check for duplicate component name on registration -------------------------------------------------- Key: JBSEAM-111 URL: http://jira.jboss.com/jira/browse/JBSEAM-111 Project: JBoss Seam Issue Type: Patch Components: Core Affects Versions: 1.0 beta 1 Reporter: Jye Tucker Assigned To: Thomas Heute Priority: Trivial Fix For: 1.1.0.BETA1 Issues a warning when you try to register a component with a name that has previously been registered. Also wrapped addComponent methods and moved the ".component" suffix to a static variable. Index: Initialization.java =================================================================== RCS file: /cvsroot/jboss/jboss-seam/src/main/org/jboss/seam/init/Initialization.java,v retrieving revision 1.23 diff -u -r1.23 Initialization.java --- Initialization.java 28 Nov 2005 14:09:13 -0000 1.23 +++ Initialization.java 4 Dec 2005 13:17:50 -0000 @@ -44,6 +44,8 @@ */ public class Initialization { + public static final String COMPONENT_SUFFIX = ".component"; + private static final Logger log = Logger.getLogger(Seam.class); private Map<String, String> properties = new HashMap<String, String>(); @@ -160,15 +162,30 @@ } - protected void addComponent(String name, Class clazz, Context context) - { - context.set( name + ".component", new Component(clazz, name) ); + protected void addComponent(String name, Class clazz, Context context) { + if (isComponentRegistered(name, context)) { + log.warn("Component name '" + name + "' has been previously registered. May experience unexpected behaviour"); + } + context.set(name + COMPONENT_SUFFIX, new Component(clazz, name)); + } + + protected void addComponent(Class clazz, Context context) { + addComponent(Seam.getComponentName(clazz), clazz, context); + } + + /** + * + * @param name The name of the component + * @param context The context to inspect + * @return True if a component with the specified name exists in context + */ + protected boolean isComponentRegistered(String name, Context context) { + if (context.get(name + COMPONENT_SUFFIX) != null) { + return true; + } + return false; } - protected void addComponent(Class clazz, Context context) - { - context.set( Seam.getComponentName(clazz) + ".component", new Component(clazz) ); - } public boolean isScannerEnabled() {