1 files changed, 93 insertions, 0 deletions
diff --git a/plugins/infra/core/org.eclipse.papyrus.infra.core/src/org/eclipse/papyrus/infra/core/services/ComposedService.java b/plugins/infra/core/org.eclipse.papyrus.infra.core/src/org/eclipse/papyrus/infra/core/services/ComposedService.java
new file mode 100644
index 00000000000..22198fda810
--- /dev/null
+++ b/plugins/infra/core/org.eclipse.papyrus.infra.core/src/org/eclipse/papyrus/infra/core/services/ComposedService.java
@@ -0,0 +1,93 @@
+/**
+ * 
+ */
+package org.eclipse.papyrus.infra.core.services;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Base class to create a Service composed of other services called Parts.
+ * ServiceParts register themselves to the ComposedService. The ComposedService
+ * maintain a list of its part.
+ * 
+ * @author cedric dumoulin
+ * 
+ * @param T
+ *        The type of sub-services that can register to this
+ *        ComposedService.
+ */
+public abstract class ComposedService<T> implements IService {
+
+	/**
+	 * The list of serviceParts composing this Service.
+	 */
+	protected List<T> serviceParts = new ArrayList<T>();
+
+	/**
+	 * Constructor. Constructor.
+	 * 
+	 */
+	public ComposedService() {
+
+	}
+
+	/**
+	 * Add the provided servicePart.
+	 * 
+	 * @param servicePart
+	 */
+	public void addServicePart(T servicePart) {
+		serviceParts.add(servicePart);
+	}
+
+	/**
+	 * Remove the provided servicePart.
+	 * 
+	 * @param servicePart
+	 */
+	public void removeServicePart(T servicePart) {
+		serviceParts.remove(servicePart);
+	}
+
+	/**
+	 * Do nothing here.
+	 * 
+	 * @see org.eclipse.papyrus.infra.core.services.IService#init(org.eclipse.papyrus.infra.core.services.ServicesRegistry)
+	 * 
+	 * @param servicesRegistry
+	 * @throws ServiceException
+	 */
+	public void init(ServicesRegistry servicesRegistry) throws ServiceException {
+	}
+
+	/**
+	 * Do nothing here.
+	 * 
+	 * @see org.eclipse.papyrus.infra.core.services.IService#startService()
+	 * 
+	 * @throws ServiceException
+	 */
+	public void startService() throws ServiceException {
+	}
+
+	/**
+	 * Do nothing here.
+	 * 
+	 * @see org.eclipse.papyrus.infra.core.services.IService#disposeService()
+	 * 
+	 * @throws ServiceException
+	 */
+	public void disposeService() throws ServiceException {
+	}
+
+	/**
+	 * Get a list of registered sub service parts.
+	 * 
+	 * @return List of registered services.
+	 */
+	public List<T> getRegisteredServices() {
+		return serviceParts;
+	}
+
+}