1 files changed, 107 insertions, 0 deletions
diff --git a/plugins/org.eclipse.sirius.diagram.sequence.ui/src/org/eclipse/sirius/diagram/sequence/ui/tool/internal/edit/validator/AbstractMessageCreationValidator.java b/plugins/org.eclipse.sirius.diagram.sequence.ui/src/org/eclipse/sirius/diagram/sequence/ui/tool/internal/edit/validator/AbstractMessageCreationValidator.java
new file mode 100644
index 0000000000..0ef196f71c
--- /dev/null
+++ b/plugins/org.eclipse.sirius.diagram.sequence.ui/src/org/eclipse/sirius/diagram/sequence/ui/tool/internal/edit/validator/AbstractMessageCreationValidator.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2010 THALES GLOBAL SERVICES.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.sirius.diagram.sequence.ui.tool.internal.edit.validator;
+
+import org.eclipse.draw2d.geometry.Point;
+import org.eclipse.gef.requests.CreateConnectionRequest;
+
+import org.eclipse.sirius.diagram.sequence.business.internal.elements.ISequenceElement;
+
+/**
+ * Abstract validator to check if a message creation request is valid.
+ * 
+ * @author edugueperoux
+ */
+public abstract class AbstractMessageCreationValidator {
+
+    /**
+     * {@link ISequenceElement} source.
+     */
+    protected ISequenceElement sequenceElementSource;
+
+    /**
+     * {@link ISequenceElement} target.
+     */
+    protected ISequenceElement sequenceElementTarget;
+
+    /**
+     * coordinate of the click on the {@link ISequenceElement} source.
+     */
+    protected Point firstClickLocation;
+
+    /**
+     * coordinate of the click on the {@link ISequenceElement} target.
+     */
+    protected Point secondClickLocation;
+
+    /**
+     * Check if a message creation request is valid.
+     * 
+     * @param request
+     *            the {@link CreateConnectionRequest} of a message creation to
+     *            validate
+     * 
+     * @return true if request is valid
+     */
+    public boolean isValid(CreateConnectionRequest request) {
+        // Preconditions.checkNotNull(sequenceElementSource,
+        // "validator must know on which ISequenceElement check the request validation");
+        // Preconditions.checkNotNull(sequenceElementTarget,
+        // "validator must know on which ISequenceElement check the request validation");
+        // Preconditions.checkNotNull(firstClickLocation,
+        // "validator must know the click on the first ISequenceElement");
+        // Preconditions.checkNotNull(secondClickLocation,
+        // "validator must know the click on the second ISequenceElement");
+        boolean valid = true;
+
+        valid = valid && sequenceElementSource != null;
+        valid = valid && sequenceElementTarget != null;
+        valid = valid && firstClickLocation != null;
+        valid = valid && secondClickLocation != null;
+
+        return valid;
+    }
+
+    /**
+     * Setter for {@link ISequenceElement} source.
+     * 
+     * @param elementSource
+     *            the {@link ISequenceElement} source
+     */
+    public void setSource(ISequenceElement elementSource) {
+        this.sequenceElementSource = elementSource;
+    }
+
+    /**
+     * Setter for {@link ISequenceElement} target.
+     * 
+     * @param elementTarget
+     *            the {@link ISequenceElement} target
+     */
+    public void setTarget(ISequenceElement elementTarget) {
+        this.sequenceElementTarget = elementTarget;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setFirstClickLocation(Point firstClickLocation) {
+        this.firstClickLocation = firstClickLocation;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setSecondClickLocation(Point secondClickLocation) {
+        this.secondClickLocation = secondClickLocation;
+    }
+
+}