[POLICY-73] replace openecomp for policy-engine

[policy/engine.git] / ONAP-PDP / src / main / java / org / onap / policy / xacml / custom / OnapFunctionDefinitionFactory.java

diff --git a/ONAP-PDP/src/main/java/org/onap/policy/xacml/custom/OnapFunctionDefinitionFactory.java b/ONAP-PDP/src/main/java/org/onap/policy/xacml/custom/OnapFunctionDefinitionFactory.java
new file mode 100644 (file)
index 0000000..87075f9
--- /dev/null
+++ b/ONAP-PDP/src/main/java/org/onap/policy/xacml/custom/OnapFunctionDefinitionFactory.java
@@ -0,0 +1,88 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP-PDP
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.policy.xacml.custom;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.xacml.pdp.std.functions.FunctionDefinitionCustomRegexpMatch;
+
+import com.att.research.xacml.api.Identifier;
+import com.att.research.xacml.std.IdentifierImpl;
+import com.att.research.xacml.std.datatypes.DataTypes;
+import com.att.research.xacmlatt.pdp.policy.FunctionDefinition;
+import com.att.research.xacmlatt.pdp.policy.FunctionDefinitionFactory;
+import com.att.research.xacmlatt.pdp.std.StdFunctions;
+
+public class OnapFunctionDefinitionFactory extends FunctionDefinitionFactory {
+       private static Logger logger = FlexLogger.getLogger(OnapFunctionDefinitionFactory.class);
+       private static Map<Identifier,FunctionDefinition>       mapFunctionDefinitions  = new HashMap<>();
+       private static boolean                                                          needMapInit                             = true;
+
+       public static final Identifier ID_FUNCTION_CUSTOM_REGEXP_MATCH                                          = new IdentifierImpl("org.onap.function.regex-match");
+       
+       private static final FunctionDefinition FD_CUSTOM_REGEXP_MATCH = new FunctionDefinitionCustomRegexpMatch<>(ID_FUNCTION_CUSTOM_REGEXP_MATCH, DataTypes.DT_STRING);
+
+       private static void register(FunctionDefinition functionDefinition) {
+               mapFunctionDefinitions.put(functionDefinition.getId(), functionDefinition);
+       }
+               
+       private static void initMap() {
+               if (needMapInit) {
+                       synchronized(mapFunctionDefinitions) {
+                               if (needMapInit) {
+                                       needMapInit     = false;
+                                       Field[] declaredFields  = StdFunctions.class.getDeclaredFields();
+                                       for (Field field : declaredFields) {
+                                               if (Modifier.isStatic(field.getModifiers()) && 
+                                                       field.getName().startsWith(StdFunctions.FD_PREFIX) &&
+                                                       FunctionDefinition.class.isAssignableFrom(field.getType()) &&
+                                                       Modifier.isPublic(field.getModifiers())
+                                               ) {
+                                                       try {
+                                                               register((FunctionDefinition)(field.get(null)));
+                                                       } catch (IllegalAccessException ex) {
+                                                               logger.error(ex.getMessage() +ex);
+                                                       }
+                                               }
+                                       }
+                                       //
+                                       // Our custom function
+                                       //
+                                       //register(FunctionDefinitionCustomRegexpMatch);
+                                       register(FD_CUSTOM_REGEXP_MATCH);
+                               }
+                       }
+               }
+       }
+       
+       public OnapFunctionDefinitionFactory() {
+               initMap();
+       }
+
+       @Override
+       public FunctionDefinition getFunctionDefinition(Identifier functionId) {
+               return mapFunctionDefinitions.get(functionId);
+       }
+}