net.openhft.lang.model.DataValueModels Maven / Gradle / Ivy

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Java Lang library for High Frequency Trading (Java 6+)

There is a newer version: 6.8.2

/*
 *     Copyright (C) 2015  higherfrequencytrading.com
 *
 *     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.
 *
 *     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 net.openhft.lang.model;

import java.util.Map;
import java.util.WeakHashMap;

/**
 * User: peter.lawrey
 * Date: 06/10/13
 * Time: 17:14
 */
public enum DataValueModels {
    ;
    private static final Map MODEL_MAP = new WeakHashMap();

    private static synchronized  DataValueModel getModel(Class tClass) {
        return MODEL_MAP.get(tClass);
    }

    private static synchronized  void putModel(Class tClass, DataValueModel model) {
        MODEL_MAP.put(tClass, model);
    }

    public static  DataValueModel acquireModel(Class tClass) {
        if (!tClass.isInterface() || tClass.getClassLoader() == null)
            throw new IllegalArgumentException(tClass + " not supported");
        DataValueModel model;
        try {
            model = getModel(tClass);
            if (model == null) {
                model = new DataValueModelImpl(tClass);
                putModel(tClass, model);
            }
        } catch (RuntimeException e) {
            e.printStackTrace();
            throw e;
        }
        return model;
    }
}