io.druid.cli.convert.ValueConverter Maven / Gradle / Ivy
/*
* Licensed to Metamarkets Group Inc. (Metamarkets) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Metamarkets licenses this file
* to you 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 ValueConverter implements PropertyConverter
{
private final Map valueMap;
private final String property;
public ValueConverter(String property, Map valueMap){
this.property = property;
this.valueMap = valueMap;
}
@Override
public boolean canHandle(String property)
{
return this.property.equals(property);
}
@Override
public Map convert(Properties properties)
{
final String oldValue = properties.getProperty(this.property);
if(null == oldValue){
return ImmutableMap.of();
}
final String newValue = valueMap.get(oldValue);
if(null == newValue){
return ImmutableMap.of();
}
return ImmutableMap.of(this.property, newValue);
}
}