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Diffstat (limited to 'gson/src/main/java/org/onap/policy/common/gson/internal/Lifter.java')
-rw-r--r-- | gson/src/main/java/org/onap/policy/common/gson/internal/Lifter.java | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gson/src/main/java/org/onap/policy/common/gson/internal/Lifter.java b/gson/src/main/java/org/onap/policy/common/gson/internal/Lifter.java new file mode 100644 index 00000000..bb8ec321 --- /dev/null +++ b/gson/src/main/java/org/onap/policy/common/gson/internal/Lifter.java @@ -0,0 +1,62 @@ +/* + * ============LICENSE_START======================================================= + * ONAP + * ================================================================================ + * Copyright (C) 2019 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.common.gson.internal; + +import com.google.gson.Gson; +import java.lang.reflect.Method; +import java.lang.reflect.Type; +import java.util.Set; + +/** + * Super class of serializers and de-serializers that deal with "lifted" data, that is, + * data that is lifted from a nested json object into the containing object. + */ +public class Lifter extends MethodAdapter { + + /** + * Names of the properties that are <i>not</i> to be lifted. + */ + private final Set<String> unliftedProps; + + /** + * Constructs the object. + * + * @param gson Gson object providing type adapters + * @param unliftedProps property names that should not be lifted + * @param accessor method used to access the item from within an object + * @param type the class of value on which this operates + */ + public Lifter(Gson gson, Set<String> unliftedProps, Method accessor, Type type) { + super(gson, accessor, type); + + this.unliftedProps = unliftedProps; + } + + /** + * Determines if a property should be lifted. + * + * @param propName the name of the property + * @return {@code true} if the property should be lifted, {@code false} otherwise + */ + public boolean shouldLift(String propName) { + return !unliftedProps.contains(propName); + } +} |