IgnorelistsDefinition.java

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/*
 * Gridarta MMORPG map editor for Crossfire, Daimonin and similar games.
 * Copyright (C) 2000-2015 The Gridarta Developers.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package net.sf.gridarta.model.archetypetype;

import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class IgnorelistsDefinition {

    @NotNull
    private final Map<String, Set<String>> ignoreListTable = new HashMap<>();

    public boolean containsKey(@NotNull final String name) {
        return ignoreListTable.containsKey(name);
    }

    public void put(@NotNull final String name, @NotNull final String value) {
        if (name.isEmpty()) {
            throw new IllegalArgumentException("empty name");
        }

        if (value.isEmpty()) {
            throw new IllegalArgumentException("empty value for name '" + name + "'");
        }

        if (!ignoreListTable.computeIfAbsent(name, k -> new HashSet<>()).add(value)) {
            throw new IllegalArgumentException("duplicate value '" + value + "' for name '" + name + "'");
        }
    }

    @Nullable
    public Iterable<String> get(@NotNull final String name) {
        final Set<String> values = ignoreListTable.get(name);
        return values == null ? null : Collections.unmodifiableCollection(values);
    }

}