diff options
Diffstat (limited to 'feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/ClassExtractors.java')
| -rw-r--r-- | feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/ClassExtractors.java | 55 |
1 files changed, 28 insertions, 27 deletions
diff --git a/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/ClassExtractors.java b/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/ClassExtractors.java index 91fbad18..bd75995f 100644 --- a/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/ClassExtractors.java +++ b/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/ClassExtractors.java @@ -3,13 +3,14 @@ * ONAP * ================================================================================ * Copyright (C) 2018-2019 AT&T Intellectual Property. All rights reserved. + * Modifications Copyright (C) 2019-2020 Nordix Foundation * ================================================================================ * 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. @@ -26,7 +27,7 @@ import java.util.Map; import java.util.Properties; import java.util.concurrent.ConcurrentHashMap; import org.apache.commons.lang3.StringUtils; -import org.onap.policy.drools.utils.Pair; +import org.apache.commons.lang3.tuple.Pair; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @@ -34,11 +35,11 @@ import org.slf4j.LoggerFactory; * Extractors for each object class. Properties define how the data is to be * extracted for a given class, where the properties are similar to the * following: - * + * * <pre> * <code><a.prefix>.<class.name> = ${event.reqid}</code> * </pre> - * + * * <p>For any given field name (e.g., "reqid"), it first looks for a public "getXxx()" * method to extract the specified field. If that fails, then it looks for a public field * by the given name. If that also fails, and the object is a <i>Map</i> subclass, then it @@ -71,7 +72,7 @@ public class ClassExtractors { /** * Constructor. - * + * * @param props properties that specify how the data is to be extracted from * a given class * @param prefix property name prefix, prepended before the class name @@ -85,7 +86,7 @@ public class ClassExtractors { /** * Gets the number of extractors in the map. - * + * * @return gets the number of extractors in the map */ protected int size() { @@ -94,7 +95,7 @@ public class ClassExtractors { /** * Extracts the desired data item from an object. - * + * * @param object object from which to extract the data item * @return the extracted item, or {@code null} if it could not be extracted */ @@ -111,7 +112,7 @@ public class ClassExtractors { /** * Gets the extractor for the given type of object, creating one if it * doesn't exist yet. - * + * * @param object object whose extracted is desired * @return an extractor for the object */ @@ -129,9 +130,9 @@ public class ClassExtractors { /** * Builds an extractor for the class. - * + * * @param clazz class for which the extractor should be built - * + * * @return a new extractor */ private Extractor buildExtractor(Class<?> clazz) { @@ -162,7 +163,7 @@ public class ClassExtractors { /** * Builds an extractor for the class, based on the config value extracted * from the corresponding property. - * + * * @param clazz class for which the extractor should be built * @param value config value (e.g., "${event.request.id}" * @return a new extractor @@ -209,7 +210,7 @@ public class ClassExtractors { /** * Gets the extractor for a class, examining all super classes and * interfaces. - * + * * @param clazz class whose extractor is desired * @param addOk {@code true} if the extractor may be added, provided the * property is defined, {@code false} otherwise @@ -268,7 +269,7 @@ public class ClassExtractors { * hierarchically, where each name identifies a particular component within * the hierarchy. Supports retrieval from {@link Map} objects, as well as * via getXxx() methods, or by direct field retrieval. - * + * * <p>Note: this will <i>not</i> work if POJOs are contained within a Map. */ private class ComponetizedExtractor implements Extractor { @@ -280,7 +281,7 @@ public class ClassExtractors { /** * Constructor. - * + * * @param clazz the class associated with the object at the root of the * hierarchy * @param names name associated with each component @@ -296,14 +297,14 @@ public class ClassExtractors { Pair<Extractor, Class<?>> pair = buildExtractor(clz, comp); - extractors[x] = pair.first(); - clz = pair.second(); + extractors[x] = pair.getLeft(); + clz = pair.getRight(); } } /** * Builds an extractor for the given component of an object. - * + * * @param clazz type of object from which the component will be * extracted * @param comp name of the component to extract @@ -312,9 +313,9 @@ public class ClassExtractors { * @throws ExtractorException extrator exception */ private Pair<Extractor, Class<?>> buildExtractor(Class<?> clazz, String comp) throws ExtractorException { - + Pair<Extractor, Class<?>> pair = getMethodExtractor(clazz, comp); - + if (pair == null) { pair = getFieldExtractor(clazz, comp); } @@ -350,7 +351,7 @@ public class ClassExtractors { /** * Gets an extractor that invokes a getXxx() method to retrieve the * object. - * + * * @param clazz container's class * @param name name of the property to be retrieved * @return a new extractor, or {@code null} if the class does not @@ -371,7 +372,7 @@ public class ClassExtractors { return null; } - return new Pair<>(new MethodExtractor(meth), retType); + return Pair.of(new MethodExtractor(meth), retType); } catch (NoSuchMethodException expected) { // no getXxx() method, maybe there's a field by this name @@ -385,7 +386,7 @@ public class ClassExtractors { /** * Gets an extractor for a field within the object. - * + * * @param clazz container's class * @param name name of the field whose value is to be extracted * @return a new extractor, or {@code null} if the class does not @@ -399,12 +400,12 @@ public class ClassExtractors { return null; } - return new Pair<>(new FieldExtractor(field), field.getType()); + return Pair.of(new FieldExtractor(field), field.getType()); } /** * Gets an extractor for an item within a Map object. - * + * * @param clazz container's class * @param key item key within the map * @return a new extractor, or {@code null} if the class is not a Map @@ -423,13 +424,13 @@ public class ClassExtractors { * If the object turns out not to be a map, then the MapExtractor * for the next component will just return null. */ - return new Pair<>(new MapExtractor(key), Map.class); + return Pair.of(new MapExtractor(key), Map.class); } /** * Gets field within a class, examining all super classes and * interfaces. - * + * * @param clazz class whose field is desired * @param name name of the desired field * @return the field within the class, or {@code null} if the field does |