com.liferay.portal.kernel.cache.thread.local.ThreadLocalCache.java Source code

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Here is the source code for com.liferay.portal.kernel.cache.thread.local.ThreadLocalCache.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library 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 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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.
 */

package com.liferay.portal.kernel.cache.thread.local;

import com.liferay.petra.string.StringBundler;

import java.util.HashMap;
import java.util.Map;

/**
 * @author Shuyang Zhou
 */
public class ThreadLocalCache<T> {

    public ThreadLocalCache(Object id, Lifecycle lifecycle) {
        _id = id;
        _lifecycle = lifecycle;
    }

    public T get(String key) {
        if (_cache == null) {
            return null;
        }

        return _cache.get(key);
    }

    public Object getId() {
        return _id;
    }

    public Lifecycle getLifecycle() {
        return _lifecycle;
    }

    public void put(String key, T obj) {
        if (_cache == null) {
            _cache = new HashMap<>();
        }

        _cache.put(key, obj);
    }

    public void remove(String key) {
        if (_cache != null) {
            _cache.remove(key);
        }
    }

    public void removeAll() {
        if (_cache != null) {
            _cache.clear();
        }
    }

    @Override
    public String toString() {
        StringBundler sb = new StringBundler(7);

        sb.append("{cache=");
        sb.append(_cache.toString());
        sb.append(", id=");
        sb.append(_id);
        sb.append(", lifecycle=");
        sb.append(_lifecycle);
        sb.append("}");

        return sb.toString();
    }

    private Map<String, T> _cache;
    private final Object _id;
    private final Lifecycle _lifecycle;

}