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;
}
}