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#2884 Improve DnD for multiple DeploymentLinks #2885

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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2006, 2020 THALES GLOBAL SERVICES.
* Copyright (c) 2006, 2024 THALES GLOBAL SERVICES.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
Expand Down Expand Up @@ -718,7 +718,7 @@ public boolean isValidDndABComponent(Component semanticObjectToDrop, EObject tar
* Returns whether the given part can be dropped into the target element view
*/
public boolean isValidDndABComponent(Part semanticObjectToDrop, EObject targetContainerView) {
EObject context = null;
final EObject context;

Component component = (Component) semanticObjectToDrop.getAbstractType();
if (component.isActor()) {
Expand All @@ -727,6 +727,10 @@ public boolean isValidDndABComponent(Part semanticObjectToDrop, EObject targetCo
}

context = CsServices.getService().getABTarget((DSemanticDecorator) targetContainerView);
boolean isSourceAlreadyDeployed = semanticObjectToDrop.getDeployingLinks().stream().anyMatch(link -> link.getLocation().equals(context));
if (isSourceAlreadyDeployed) {
return false;
}
if (context instanceof BlockArchitecture) {
return false;

Expand Down
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