fix #32

Author: debbabi

src/cube-core/src/main/java/fr/liglab/adele/cube/plugins/core/constraints/HasNoComponents.java

@@ -0,0 +1,101 @@
+/*
+ * Copyright 2011-2013 Adele Research Group (http://adele.imag.fr/) 
+ * LIG Laboratory (http://www.liglab.fr)
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package fr.liglab.adele.cube.plugins.core.constraints;
+
+import fr.liglab.adele.cube.agent.ConstraintResolver;
+import fr.liglab.adele.cube.agent.CubeAgent;
+import fr.liglab.adele.cube.agent.RuntimeModelController;
+import fr.liglab.adele.cube.agent.defaults.resolver.Variable;
+
+
+/**
+ * Author: debbabi
+ * Date: 4/28/13
+ * Time: 7:34 PM
+ */
+public class HasNoComponents implements ConstraintResolver {
+
+    private static ConstraintResolver instance = new HasNoComponents();
+
+    public static ConstraintResolver instance() {
+        return instance;
+    }
+
+    public void init(CubeAgent agent, Variable subjectVariable, Variable objectVariable) {
+
+    }
+
+    public boolean check(CubeAgent agent, Variable subjectVariable, Variable objectVariable) {
+        Object instance1_uuid = subjectVariable.getValue();
+        Object agentUri = objectVariable.getValue();
+        if (instance1_uuid != null && agentUri != null) {
+            RuntimeModelController rmController = agent.getRuntimeModelController();
+            if (rmController != null) {
+                String value = rmController.getAgentOfElement(instance1_uuid.toString());
+                if (value != null && value.equalsIgnoreCase(agentUri.toString())) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    public boolean applyDescription(CubeAgent agent, Variable subjectVariable, Variable objectVariable) {
+        if (subjectVariable != null && objectVariable != null && objectVariable.getValue() != null) {
+            subjectVariable.setCubeAgent(objectVariable.getValue().toString());
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Apply the objective constraint.
+     * This should modify the two elements in relation!
+     *
+     * @param subjectVariable
+     * @param objectVariable
+     * @return
+     */
+    public boolean performObjective(CubeAgent agent, Variable subjectVariable, Variable objectVariable) {
+        return false;  //To change body of implemented methods use File | Settings | File Templates.
+    }
+
+    /**
+     * Cancel the applied objective constraint.
+     * This should remove properties or references added by the equivalent 'apply' function.
+     *
+     * @param subjectVariable
+     * @param objectVariable
+     * @return
+     */
+    public boolean cancelObjective(CubeAgent agent, Variable subjectVariable, Variable objectVariable) {
+        return false;  //To change body of implemented methods use File | Settings | File Templates.
+    }
+
+    /**
+     * Find value from object variable.
+     *
+     * @param subjectVariable
+     * @param objectVariable
+     * @return
+     */
+    public String find(CubeAgent agent, Variable subjectVariable, Variable objectVariable) {
+        return null;  //To change body of implemented methods use File | Settings | File Templates.
+    }
+}