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This project was born out of a need to validate all POJOs (Plain Old Java Object) are behaving correctly. This project has two main aspects to it: * Make Testing as easy as possible. * Simplifying identity management (hashCode / equals) using annotation.

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/*
 * Copyright (c) 2010-2012 Osman Shoukry
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published by
 *   the Free Software Foundation, either version 3 of the License or 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 Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this program.  If not, see .
 */

package com.openpojo.random.collection.queue;

import java.util.Collection;
import java.util.HashSet;
import java.util.Queue;
import java.util.Set;

import com.openpojo.log.LoggerFactory;
import com.openpojo.random.RandomGenerator;
import com.openpojo.random.collection.util.CollectionHelper;
import com.openpojo.reflection.construct.InstanceFactory;
import com.openpojo.reflection.impl.PojoClassFactory;

/**
 * This is random generator is responsible for generating concrete Queue implementations 

 * Namely:

 * 1. BlockingQueue -- Interface 

 * 2. LinkedBlockingQueue 

 * 3. PriorityBlockingQueue 

 * 4. DelayQueue 

 * 5. SynchronousQueue 

 * 6. TBD ArrayBlockingQueue 

 *
 * @author oshoukry
 */
public final class QueueConcreteRandomGenerator implements RandomGenerator {

    private QueueConcreteRandomGenerator() {
    }

    public static RandomGenerator getInstance() {
        return Instance.INSTANCE;
    }

    private final String[] TYPES = new String[] { "java.util.ArrayDeque", "java.util.concurrent.LinkedBlockingQueue",
            "java.util.concurrent.PriorityBlockingQueue", "java.util.concurrent.DelayQueue", "java.util.concurrent.SynchronousQueue" };


    @SuppressWarnings("rawtypes")
    public Object doGenerate(final Class type) {
        Queue randomQueue = null;

        if (this.getTypes().contains(type)) {
            randomQueue = (Queue) InstanceFactory.getLeastCompleteInstance(PojoClassFactory.getPojoClass(type));
            CollectionHelper.populateWithRandomData(randomQueue);
        }

        return randomQueue;
    }

    public Collection> getTypes() {
        Set> types = new HashSet>();

        for (String type : TYPES) {
            try {
                types.add(Class.forName(type));
            } catch (ClassNotFoundException e) {
                LoggerFactory.getLogger(this.getClass()).info("Failed to load [{0}], got Exception[{1}]", type, e);
            }
        }
        return types;
    }

    private static class Instance {
        private static final RandomGenerator INSTANCE = new QueueConcreteRandomGenerator();
    }
}