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Routing library for Java

There is a newer version: 0.5.1

/*
 * This file is part of lettar, licensed under the MIT License (MIT).
 *
 * Copyright (c) TechShroom Studios 
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.techshroom.lettar.routing;

import java.util.List;
import java.util.Map.Entry;

import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableListMultimap;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;

@AutoValue
public abstract class KeyValuePredicate {

    public static KeyValuePredicate of(Multimap values) {
        return new AutoValue_KeyValuePredicate(ImmutableListMultimap.copyOf(values));
    }

    KeyValuePredicate() {
    }

    abstract ListMultimap getMap();

    public final boolean matches(ListMultimap values) {
        // fast-check keyset before iterating
        if (!values.keySet().containsAll(getMap().keySet())) {
            return false;
        }
        for (Entry> e : Multimaps.asMap(getMap()).entrySet()) {
            List valuesValue = values.get(e.getKey());
            if (!e.getValue().equals(valuesValue)) {
                return false;
            }
        }
        return true;
    }

}