DataType.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * 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
 */
package org.openhab.binding.insteonplm.internal.message;

import java.util.HashMap;

/**
 * Defines the data types that can be used in the fields of a message.
 *
 * @author Daniel Pfrommer
 * @since 1.5.0
 */
public enum DataType {
    BYTE("byte", 1),
    INT("int", 4),
    FLOAT("float", 4),
    ADDRESS("address", 3),
    INVALID("INVALID", -1);

    private static HashMap<String, DataType> s_typeMap = new HashMap<String, DataType>();

    private int m_size = -1; // number of bytes consumed
    private String m_name = "";

    static {
        s_typeMap.put(BYTE.getName(), BYTE);
        s_typeMap.put(INT.getName(), INT);
        s_typeMap.put(FLOAT.getName(), FLOAT);
        s_typeMap.put(ADDRESS.getName(), ADDRESS);
    }

    /**
     * Constructor
     * 
     * @param name the name of the data type
     * @param size the size (in bytes) of this data type
     */
    DataType(String name, int size) {
        m_size = size;
        m_name = name;
    }

    /**
     * @return the size (in bytes) of this data type
     */
    public int getSize() {
        return m_size;
    }

    /**
     * @return clear text string with the name
     */
    public String getName() {
        return m_name;
    }

    /**
     * Turns a string into the corresponding data type
     * 
     * @param name the string to translate to a type
     * @return the data type corresponding to the name string, or null if not found
     */
    public static DataType s_getDataType(String name) {
        return s_typeMap.get(name);
    }
}