org.eclipse.smila.management.jmx.ClassHelper.java Source code

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Here is the source code for org.eclipse.smila.management.jmx.ClassHelper.java

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/***********************************************************************************************************************
 * Copyright (c) 2008 empolis GmbH and brox IT Solutions GmbH. All rights reserved. This program and the accompanying
 * materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: Ivan Churkin (brox IT Solutions GmbH) - initial creator
 **********************************************************************************************************************/
package org.eclipse.smila.management.jmx;

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

import javax.management.ReflectionException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * The Class ClassHelper.
 */
public final class ClassHelper {

    /**
     * The Constant EMPTY_SIGNATURE.
     */
    public static final String[] EMPTY_SIGNATURE = new String[] {};

    /**
     * The Constant EMPTY_PARAMS.
     */
    public static final Object[] EMPTY_PARAMS = new Object[] {};

    /**
     * The Constant PRIMITIVES.
     */
    private static final Class[] PRIMITIVES = { // 
            boolean.class, // 
            short.class, //
            int.class, //
            long.class, //
            double.class, //
            float.class, //
            byte.class, //
            char.class //
    };

    /**
     * The Constant PRIMITIVES_MAP.
     */
    private static final Map<String, Class> PRIMITIVES_MAP = new HashMap<String, Class>();

    static {
        for (int i = 0; i < PRIMITIVES.length; i++) {
            final Class c = PRIMITIVES[i];
            PRIMITIVES_MAP.put(c.getName(), c);
        }
    }

    /**
     * The _log.
     */
    private static final Log LOG = LogFactory.getLog(ClassHelper.class);

    /**
     * prevents class helper instance.
     */
    private ClassHelper() {

    }

    /**
     * Search class.
     * 
     * @param className
     *          the class name
     * 
     * @return the class
     * 
     * @throws ReflectionException
     *           the reflection exception
     */
    public static Class searchClass(final String className) throws ReflectionException {
        final Class pClass = PRIMITIVES_MAP.get(className);
        if (pClass != null) {
            return pClass;
        }
        try {
            return Class.forName(className);
        } catch (final ClassNotFoundException e) {
            LOG.error(e);
            throw new ReflectionException(e);
        }
    }

}