X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fcore%2FAbstractComponent.java;h=d2cf69fe76f3b1039133debdc726ae88857a927d;hb=9f620f398d323e1e385d28d6a9630d2c406a3a19;hp=b8e4e6be9b2f5276b041d44e9e61434c1c503ac0;hpb=fc10e15e031cf409146b04cbb5e98b649c6ccddc;p=utils

diff --git a/system/general/src/main/java/org/wamblee/system/core/AbstractComponent.java b/system/general/src/main/java/org/wamblee/system/core/AbstractComponent.java
index b8e4e6be..d2cf69fe 100644
--- a/system/general/src/main/java/org/wamblee/system/core/AbstractComponent.java
+++ b/system/general/src/main/java/org/wamblee/system/core/AbstractComponent.java
@@ -17,9 +17,8 @@ package org.wamblee.system.core;
 
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashSet;
+import java.util.Collections;
 import java.util.List;
-import java.util.Set;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -48,17 +47,44 @@ public abstract class AbstractComponent<Type> implements Component<Type> {
 	 * @param aRequired
 	 *            Required services.
 	 */
-	protected AbstractComponent(String aName, ProvidedInterface[] aProvided,
-			RequiredInterface[] aRequired) {
+	protected AbstractComponent(String aName, List<ProvidedInterface> aProvided,
+			List<RequiredInterface> aRequired) {
 		_remaining = new ThreadLocal<List<ProvidedInterface>>();
 		_context = null;
 		_name = aName;
-		_provided = new ArrayList<ProvidedInterface>();
-		_provided.addAll(Arrays.asList(aProvided));
-		_required = new ArrayList<RequiredInterface>();
-		_required.addAll(Arrays.asList(aRequired));
+		_provided = new ArrayList<ProvidedInterface>(aProvided);
+		_required = new ArrayList<RequiredInterface>(aRequired); 
 	}
-
+	
+	/**
+     * Constructs the subsystem.
+     * 
+     * @param aName
+     *            Name of the system.
+     * @param aProvided
+     *            Provided services.
+     * @param aRequired
+     *            Required services.
+     */
+    protected AbstractComponent(String aName, ProvidedInterface[] aProvided,
+            RequiredInterface[] aRequired) {
+        this(aName, Arrays.asList(aProvided), Arrays.asList(aRequired));
+    }
+	
+	protected AbstractComponent(String aName) {
+		this(aName, new ProvidedInterface[0], new RequiredInterface[0]);
+	}
+	
+	public AbstractComponent<Type> addProvidedInterface(ProvidedInterface aProvided) { 
+		_provided.add(aProvided);
+		return this; 
+	}
+	
+	public AbstractComponent<Type> addRequiredInterface(RequiredInterface aRequired) { 
+		_required.add(aRequired);
+		return this;
+	}
+	
 	@Override
 	public final String getName() {
 		return _name;
@@ -72,6 +98,11 @@ public abstract class AbstractComponent<Type> implements Component<Type> {
 			_context = aContext + "." + _context;
 		}
 	}
+	
+	@Override
+	public String getContext() {
+		return _context;
+	}
 
 	@Override
 	public String getQualifiedName() {
@@ -82,23 +113,24 @@ public abstract class AbstractComponent<Type> implements Component<Type> {
 	}
 
 	@Override
-	public final ProvidedInterface[] getProvidedInterfaces() {
-		return _provided.toArray(new ProvidedInterface[0]);
+	public final List<ProvidedInterface> getProvidedInterfaces() {
+		return Collections.unmodifiableList(_provided);
 	}
 
 	@Override
-	public final RequiredInterface[] getRequiredInterfaces() {
-		return _required.toArray(new RequiredInterface[0]);
+	public final List<RequiredInterface> getRequiredInterfaces() {
+		return Collections.unmodifiableList(_required);
 	}
 
 	@Override
 	public final Type start(Scope aScope) {
-		LOG.info("Initializing '" + getQualifiedName() + "'");
+		LOG.info("Initialization starting '" + getQualifiedName() + "'");
 		List<ProvidedInterface> oldRemaining = _remaining.get();
-		_remaining.set(new ArrayList<ProvidedInterface>(Arrays.asList(getProvidedInterfaces())));
+		_remaining.set(new ArrayList<ProvidedInterface>(getProvidedInterfaces()));
 		try {
 			Type runtime = doStart(aScope);
 			checkNotStartedInterfaces();
+			LOG.info("Initialization finished '" + getQualifiedName() + "'");
 			return runtime;
 		} finally {
 			_remaining.set(oldRemaining);
@@ -118,7 +150,7 @@ public abstract class AbstractComponent<Type> implements Component<Type> {
 
 	/**
 	 * Must be implemented for initializing the subsystem. The implementation
-	 * must call {@link #addService(Service)} for each service that is started.
+	 * must call {@link #addInterface(ProvidedInterface, Object, Scope)} for each service that is started.
 	 * 
 	 * @return Returns the runtime of the component.
 	 */
@@ -139,13 +171,18 @@ public abstract class AbstractComponent<Type> implements Component<Type> {
 			Object aService, Scope aScope) {
 		LOG.info("Interface '" + getQualifiedName() + "."
 				+ aDescriptor.getName() + "' started.");
-		_remaining.get().remove(aDescriptor);
+		if ( !_remaining.get().remove(aDescriptor) ) { 
+		    throw new SystemAssemblyException("Component '" + getQualifiedName() + "' started an unexpected interface '" + 
+		            aDescriptor + "' that was not registerd as a provided interface before");
+		}
 		aScope.publishInterface(aDescriptor, aService);
 	}
 
 	@Override
 	public void stop(Type aRuntime) {
+	    LOG.info("Stopping initiated '" + getQualifiedName() + "'");
 		doStop(aRuntime);
+		LOG.info("Stopping completed '" + getQualifiedName() + "'");
 	}
 
 	protected abstract void doStop(Type aRuntime);
@@ -154,5 +191,23 @@ public abstract class AbstractComponent<Type> implements Component<Type> {
 	public String toString() {
 		return getQualifiedName();
 	}
+	
+	public ProvidedInterface findProvidedInterface(String aName) { 
+	    for (ProvidedInterface provided: getProvidedInterfaces()) { 
+	        if ( provided.getName().equals(aName)) { 
+	            return provided; 
+	        }
+	    }
+	    return null; 
+	}
+	
+	public RequiredInterface findRequiredInterface(String aName) { 
+	    for (RequiredInterface required: getRequiredInterfaces()) { 
+	        if ( required.getName().equals(aName)) { 
+	            return required; 
+	        }
+	    }
+	    return null; 
+	}
 
 }