1 files changed, 85 insertions, 0 deletions
diff --git a/cdo/bundles/org.eclipse.papyrus.cdo.ui/src/org/eclipse/papyrus/cdo/internal/ui/expressions/CDOObjectPropertyTester.java b/cdo/bundles/org.eclipse.papyrus.cdo.ui/src/org/eclipse/papyrus/cdo/internal/ui/expressions/CDOObjectPropertyTester.java
new file mode 100755
index 00000000..7eaa713e
--- /dev/null
+++ b/cdo/bundles/org.eclipse.papyrus.cdo.ui/src/org/eclipse/papyrus/cdo/internal/ui/expressions/CDOObjectPropertyTester.java
@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * Copyright (c) 2013, 2017 CEA LIST.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *   CEA LIST - Initial API and implementation
+ *****************************************************************************/
+package org.eclipse.papyrus.cdo.internal.ui.expressions;
+
+import org.eclipse.core.expressions.PropertyTester;
+import org.eclipse.emf.cdo.CDOObject;
+import org.eclipse.emf.cdo.dawn.spi.DawnState;
+import org.eclipse.papyrus.cdo.internal.core.CDOUtils;
+import org.eclipse.papyrus.cdo.internal.ui.decorators.CDOStateAdapter;
+
+/**
+ * This is the EObjectPropertyTester type. Enjoy.
+ */
+public class CDOObjectPropertyTester
+		extends PropertyTester {
+
+	public static final String CAN_LOCK = "canLock"; //$NON-NLS-1$
+
+	public static final String IS_LOCKED_LOCALLY = "isLockedLocally"; //$NON-NLS-1$
+
+	public static final String IS_LOCKED_REMOTELY = "isLockedRemotely"; //$NON-NLS-1$
+
+	public static final String IS_CONFLICTED = "isConflicted"; //$NON-NLS-1$
+
+	public CDOObjectPropertyTester() {
+		super();
+	}
+
+	@Override
+	public boolean test(Object receiver, String property, Object[] args,
+			Object expectedValue) {
+
+		boolean result = false;
+
+		CDOObject cdoObject = (CDOObject) receiver;
+		if (cdoObject != null) {
+			if (CAN_LOCK.equals(property)) {
+				result = canLock(cdoObject);
+			} else if (IS_LOCKED_LOCALLY.equals(property)) {
+				result = isLockedLocally(cdoObject);
+			} else if (IS_LOCKED_REMOTELY.equals(property)) {
+				result = isLockedRemotely(cdoObject);
+			} else if (IS_CONFLICTED.equals(property)) {
+				result = isConflicted(cdoObject);
+			}
+		}
+
+		return result;
+	}
+
+	private boolean canLock(CDOObject object) {
+		boolean result = CDOUtils.isLockable(object);
+
+		if (result) {
+			DawnState state = CDOStateAdapter.getState(object);
+			result = (state != DawnState.LOCKED_LOCALLY)
+					&& (state != DawnState.LOCKED_REMOTELY);
+		}
+
+		return result;
+	}
+
+	private boolean isLockedLocally(CDOObject object) {
+		return CDOStateAdapter.getState(object) == DawnState.LOCKED_LOCALLY;
+	}
+
+	private boolean isLockedRemotely(CDOObject object) {
+		return CDOStateAdapter.getState(object) == DawnState.LOCKED_REMOTELY;
+	}
+
+	private boolean isConflicted(CDOObject object) {
+		return CDOStateAdapter.getState(object) == DawnState.CONFLICT;
+	}
+}