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jsync.io is a non-blocking, event-driven networking framework for Java

There is a newer version: 1.10.13

/*
 * Copyright (c) 2011-2013 The original author or authors
 * ------------------------------------------------------
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 *
 *     The Eclipse Public License is available at
 *     http://www.eclipse.org/legal/epl-v10.html
 *
 *     The Apache License v2.0 is available at
 *     http://www.opensource.org/licenses/apache2.0.php
 *
 * You may elect to redistribute this code under either of these licenses.
 */

package io.jsync.shareddata.impl;

import io.jsync.buffer.Buffer;
import io.jsync.shareddata.Shareable;

/**
 * @author Tim Fox
 */
public class Checker {

    static void checkType(Object obj) {
        if (obj instanceof String ||
                obj instanceof Integer ||
                obj instanceof Long ||
                obj instanceof Boolean ||
                obj instanceof Double ||
                obj instanceof Float ||
                obj instanceof Short ||
                obj instanceof Byte ||
                obj instanceof Character ||
                obj instanceof byte[] ||
                obj instanceof Buffer ||
                obj instanceof Shareable) {
        } else {
            throw new IllegalArgumentException("Invalid type for shareddata data structure: " + obj.getClass().getName());
        }
    }

    static  T copyIfRequired(T obj) {
        if (obj instanceof byte[]) {
            //Copy it
            byte[] bytes = (byte[]) obj;
            byte[] copy = new byte[bytes.length];
            System.arraycopy(bytes, 0, copy, 0, bytes.length);
            return (T) copy;
        } else if (obj instanceof Buffer) {
            //Copy it
            return (T) ((Buffer) obj).copy();
        } else {
            return obj;
        }
    }

}