io.cdap.transformation.DefaultRenameInfo Maven / Gradle / Ivy
/*
* Copyright © 2021 Cask Data, Inc.
*
* 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.
*/
package io.cdap.transformation;
import java.util.HashMap;
import java.util.Map;
/**
* Default implementation of {@link ColumnRenameInfo}
*/
public class DefaultRenameInfo implements ColumnRenameInfo {
private final Map originalToNewNames;
public DefaultRenameInfo(Map originalToNewNames) {
this.originalToNewNames = new HashMap<>(originalToNewNames);
}
@Override
public String getNewName(String originalName) {
String newName = originalToNewNames.get(originalName);
return newName == null ? originalName : newName;
}
}