open-JSD-10123/src/com/fr/plugin/pielinecomb/ui/MapUtil.java

package com.fr.plugin.pielinecomb.ui;

import java.awt.*;
import java.util.Map;

/**
 * @author duan.jingliang
 */
public class MapUtil {
    public static String getString(Map map, String key) {
        return getString(map, key, null);
    }

    public static String getString(Map map, String key, String def) {
        if (null == map) {
            return def;
        }
        if (null != map.get(key)) {
            return map.get(key).toString();
        } else {
            return def;
        }
    }

    public static Integer getInteger(Map map, String key) {
        return getInteger(map, key, null);
    }

    public static Integer getInteger(Map map, String key, Integer def) {
        if (null == map) {
            return def;
        }
        if (null != map.get(key)) {
            return Integer.parseInt(map.get(key).toString());
        } else {
            return def;
        }
    }

    public static Double getDouble(Map map, String key) {
        return getDouble(map, key, null);
    }

    public static Double getDouble(Map map, String key, Double def) {
        if (null == map) {
            return def;
        }
        if (null != map.get(key)) {
            return Double.parseDouble(map.get(key).toString());
        } else {
            return def;
        }
    }

    public static Boolean getBoolean(Map map, String key) {
        return getBoolean(map, key, null);
    }

    public static Boolean getBoolean(Map map, String key, Boolean def) {
        if (null == map) {
            return def;
        }
        String s = getString(map, key);
        if (null != s) {
            if ("true".equals(s)) {
                return true;
            } else if ("false".equals(s)){
                return false;
            } else {
                return def;
            }
        } else {
            return def;
        }
    }

    public static String toHex(Color c) {
        if (null == c) {
            return "transparent";
        }
        String hex = Integer.toHexString(c.getRGB());
        if (hex.length() == 8) {
            hex = "#" + hex.substring(2);
        }
        return hex;
    }
    public static Color toColor(String c) {
        if (null != c && c.startsWith("#")) {
            c = c.substring(1);
            return new Color(Integer.parseInt(c, 16));
        }
        return null;
    }
}