sneedmc/libraries/launcher/org/multimc/ParamBucket.java
2022-04-24 14:45:01 +01:00

86 lines
2.0 KiB
Java

/*
* Copyright 2012-2021 MultiMC Contributors
*
* 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 org.multimc;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class ParamBucket
{
private final Map<String, List<String>> paramsMap = new HashMap<>();
public void add(String key, String value)
{
paramsMap.computeIfAbsent(key, k -> new ArrayList<>())
.add(value);
}
public List<String> all(String key) throws NotFoundException
{
List<String> params = paramsMap.get(key);
if (params == null)
throw new NotFoundException();
return params;
}
public List<String> allSafe(String key, List<String> def)
{
List<String> params = paramsMap.get(key);
if (params == null || params.isEmpty())
return def;
return params;
}
public List<String> allSafe(String key)
{
return allSafe(key, new ArrayList<>());
}
public String first(String key) throws NotFoundException
{
List<String> list = all(key);
if (list.isEmpty())
throw new NotFoundException();
return list.get(0);
}
public String firstSafe(String key, String def)
{
List<String> params = paramsMap.get(key);
if (params == null || params.isEmpty())
return def;
return params.get(0);
}
public String firstSafe(String key)
{
return firstSafe(key, "");
}
}