2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.controlloop.actorserviceprovider;
23 import java.util.Arrays;
24 import java.util.LinkedHashMap;
26 import org.onap.policy.common.utils.coder.Coder;
27 import org.onap.policy.common.utils.coder.CoderException;
28 import org.onap.policy.common.utils.coder.StandardCoder;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
36 private static final Logger logger = LoggerFactory.getLogger(Util.class);
37 private static final Coder coder = new StandardCoder();
44 * Extracts an object's identity by invoking {@link Object#toString()} and returning
45 * the portion starting with "@". Extraction is done on-demand, when toString() is
46 * called on the result. This is typically used when logging.
48 * @param object object whose identity is to be extracted
49 * @return an object that will extract the source object's identity when this object's
50 * toString() method is called
52 public static Object ident(Object object) {
53 return new DelayedIdentString(object);
57 * Runs a function and logs a message if it throws an exception. Does <i>not</i>
58 * re-throw the exception.
60 * @param function function to be run
61 * @param exceptionMessage message to log if an exception is thrown
62 * @param exceptionArgs arguments to be passed to the logger
64 public static void runFunction(Runnable function, String exceptionMessage, Object... exceptionArgs) {
68 } catch (RuntimeException ex) {
69 // create a new array containing the original arguments plus the exception
70 Object[] allArgs = Arrays.copyOf(exceptionArgs, exceptionArgs.length + 1);
71 allArgs[exceptionArgs.length] = ex;
73 logger.warn(exceptionMessage, allArgs);
78 * Translates parameters from one class to another, typically from a Map to a POJO or
81 * @param identifier identifier of the actor/operation being translated; used to build
82 * an exception message
83 * @param source source object to be translated
84 * @param clazz target class
85 * @return the translated object
87 public static <T> T translate(String identifier, Object source, Class<T> clazz) {
89 return coder.convert(source, clazz);
91 } catch (CoderException | RuntimeException e) {
92 throw new IllegalArgumentException("cannot translate parameters for " + identifier, e);
97 * Translates parameters to a Map.
99 * @param identifier identifier of the actor/operation being translated; used to build
100 * an exception message
101 * @param source source parameters
102 * @return the parameters, as a Map
104 @SuppressWarnings("unchecked")
105 public static Map<String, Object> translateToMap(String identifier, Object source) {
106 return translate(identifier, source, LinkedHashMap.class);