package com.thinkbiganalytics.policy.standardization; /*- * #%L * thinkbig-field-policy-default * %% * Copyright (C) 2017 ThinkBig Analytics * %% * 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. * #L% */ /** * Converts a value to lower case */ @Standardizer(name = "Lowercase", description = "Convert string to lowercase") public class LowercaseStandardizer implements StandardizationPolicy { private static final LowercaseStandardizer instance = new LowercaseStandardizer(); private LowercaseStandardizer() { super(); } public static LowercaseStandardizer instance() { return instance; } @Override public String convertValue(String value) { return value.toLowerCase(); } public Boolean accepts(Object value) { return (value instanceof String); } public Object convertRawValue(Object value) { if (accepts(value)) { return String.valueOf(convertValue(value.toString())); } return value; } }