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Presto - Resource Group Configuration Managers
/*
* 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 com.facebook.presto.resourceGroups;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
import static java.util.Objects.requireNonNull;
public class VariableMap
{
private static final VariableMap EMPTY_VARIABLE_MAP = new VariableMap(ImmutableMap.of());
private final Map variables;
public VariableMap(Map variables)
{
this.variables = ImmutableMap.copyOf(requireNonNull(variables, "variables is null"));
}
public String getValue(String key)
{
return variables.get(key);
}
@Override
public String toString()
{
return variables.toString();
}
public static VariableMap emptyVariableMap()
{
return EMPTY_VARIABLE_MAP;
}
}