com.almuramc.bolt.registry.CommonRegistry.java Source code

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Here is the source code for com.almuramc.bolt.registry.CommonRegistry.java

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/*
 * This file is part of Bolt.
 *
 * Copyright (c) 2012, AlmuraDev <http://www.almuramc.com/>
 * Bolt is licensed under the Almura Development License.
 *
 * Bolt 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 3 of the License, or
 * (at your option) any later version.
 *
 * As an exception, all classes which do not reference GPL licensed code
 * are hereby licensed under the GNU Lesser Public License, as described
 * in the Almura Development License.
 *
 * Bolt 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,
 * the GNU Lesser Public License (for classes that fulfill the exception)
 * and the Almura Development License along with this program. If not, see
 * <http://www.gnu.org/licenses/> for the GNU General Public License and
 * the GNU Lesser Public License.
 */
package com.almuramc.bolt.registry;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.UUID;

import com.almuramc.bolt.lock.Lock;
import com.almuramc.bolt.util.TInt21TripleObjectHashMap;

import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;

/**
 * Simple registry of locks per world.
 */
public abstract class CommonRegistry implements Registry {
    private final HashMap<UUID, TInt21TripleObjectHashMap<Lock>> registry;
    //Hashcode
    private boolean isHashed = false;
    private int hashcode = 0;

    public CommonRegistry() {
        registry = new HashMap<UUID, TInt21TripleObjectHashMap<Lock>>();
    }

    @Override
    public Registry addLock(Lock lock) {
        if (lock == null) {
            throw new NullPointerException("Trying to add a null lock to the registry!");
        }
        if (!registry.containsKey(lock.getWorld())) {
            registry.put(lock.getWorld(), new TInt21TripleObjectHashMap<Lock>());
        }
        registry.get(lock.getWorld()).put(lock.getX(), lock.getY(), lock.getZ(), lock);
        return this;
    }

    @Override
    public Registry removeLock(UUID worldIdentifier, int x, int y, int z) {
        if (worldIdentifier == null) {
            throw new NullPointerException("World identifier passed in is null!");
        }
        if (registry.containsKey(worldIdentifier)) {
            registry.get(worldIdentifier).remove(x, y, z);
        }
        return this;
    }

    @Override
    public Registry removeLock(Lock lock) {
        if (lock == null) {
            throw new NullPointerException("Trying to remove a null lock from the registry!");
        }
        return removeLock(lock.getWorld(), lock.getX(), lock.getY(), lock.getZ());
    }

    @Override
    public Lock getLock(UUID worldIdentifier, int x, int y, int z) {
        if (worldIdentifier == null) {
            throw new NullPointerException("World identifier passed in is null!");
        }
        return registry.get(worldIdentifier) != null ? registry.get(worldIdentifier).get(x, y, z) : null;
    }

    @Override
    public Collection<Lock> getAll() {
        ArrayList<Lock> locks = new ArrayList<Lock>();
        for (TInt21TripleObjectHashMap value : registry.values()) {
            locks.addAll(value.valueCollection());
        }
        return Collections.unmodifiableCollection(locks);
    }

    protected Collection<Lock> getRawAll() {
        ArrayList<Lock> locks = new ArrayList<Lock>();
        for (TInt21TripleObjectHashMap value : registry.values()) {
            locks.addAll(value.valueCollection());
        }
        return locks;
    }

    @Override
    public boolean contains(Lock lock) {
        if (lock == null) {
            throw new NullPointerException("Lock passed in is null!");
        }
        return registry.containsKey(lock.getWorld()) && registry.get(lock.getWorld()).containsValue(lock);
    }

    @Override
    public boolean contains(UUID worldIdentifier, int x, int y, int z) {
        if (worldIdentifier == null) {
            throw new NullPointerException("World identifier passed in is null!");
        }
        return registry.containsKey(worldIdentifier) && registry.get(worldIdentifier).containsKey(x, y, z);
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (!(obj instanceof CommonRegistry)) {
            return false;
        }
        final CommonRegistry other = (CommonRegistry) obj;
        return new org.apache.commons.lang3.builder.EqualsBuilder().append(this.getRawAll(), other.getRawAll())
                .isEquals();
    }

    /**
     * Generates a unique hashcode for this object, used when comparing.
     * @return The hashcode of this object.
     */
    @Override
    public int hashCode() {
        if (!isHashed) {
            hashcode = new HashCodeBuilder(7, 11).append(getRawAll()).hashCode();
            isHashed = true;
        }
        return hashcode;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append(getRawAll().toString()).toString();
    }
}