79 lines
2.0 KiB
Java
79 lines
2.0 KiB
Java
/*
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* Copyright 2012-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.polymc.utils;
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import org.polymc.exception.ParameterNotFoundException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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public final class Parameters {
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private final Map<String, List<String>> paramsMap = new HashMap<>();
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public void add(String key, String value) {
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List<String> params = paramsMap.get(key);
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if (params == null) {
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params = new ArrayList<>();
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paramsMap.put(key, params);
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}
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params.add(value);
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}
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public List<String> all(String key) throws ParameterNotFoundException {
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List<String> params = paramsMap.get(key);
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if (params == null)
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throw new ParameterNotFoundException(key);
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return params;
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}
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public List<String> allSafe(String key, List<String> def) {
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List<String> params = paramsMap.get(key);
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if (params == null || params.isEmpty())
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return def;
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return params;
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}
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public String first(String key) throws ParameterNotFoundException {
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List<String> list = all(key);
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if (list.isEmpty())
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throw new ParameterNotFoundException(key);
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return list.get(0);
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}
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public String firstSafe(String key, String def) {
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List<String> params = paramsMap.get(key);
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if (params == null || params.isEmpty())
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return def;
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return params.get(0);
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}
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}
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