io.druid.cli.convert.Rename Maven / Gradle / Ivy
/*
* Druid - a distributed column store.
* Copyright 2012 - 2015 Metamarkets Group 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.druid.cli.convert;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
import java.util.Properties;
/**
*/
public class Rename implements PropertyConverter
{
private final String property;
private final String newProperty;
public Rename(
String property,
String newProperty
)
{
this.property = property;
this.newProperty = newProperty;
}
@Override
public boolean canHandle(String property)
{
return this.property.equals(property);
}
@Override
public Map convert(Properties properties)
{
final String value = properties.getProperty(property);
if (value != null) {
return ImmutableMap.of(newProperty, value);
} else {
return ImmutableMap.of();
}
}
}