Java Dictionary Usage getBoolean(Dictionary p, Object key, Boolean defaultValue)

Description

get Boolean

License

Open Source License

Declaration

public static Boolean getBoolean(Dictionary p, Object key, Boolean defaultValue) 

Method Source Code

//package com.java2s;
/*/*from   ww  w.j  a v a2  s . co m*/
 * Copyright 2012 The Solmix Project
 *
 * This 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 software 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.
 *
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.gnu.org/licenses/ 
 * or see the FSF site: http://www.fsf.org. 
 */

import java.util.Dictionary;

import java.util.Map;

public class Main {
    public static boolean getBoolean(Map map, Object key) {
        Object value = map.get(key);
        return asBoolean(value);
    }

    public static Boolean getBoolean(Dictionary p, Object key, Boolean defaultValue) {
        Object value = p.get(key);
        if (value == null)
            return defaultValue;
        if (value instanceof Boolean)
            return (Boolean) value;
        String s = value.toString().toLowerCase().trim();
        if (s.equals("true") || s.equals("yes"))
            return new Boolean(true);
        if (s.equals("false") || s.equals("no"))
            return new Boolean(false);
        else
            return defaultValue;
    }

    /**
     * convert a object value to boolean value.
     * 
     * @param value
     * @return
     */
    public static boolean asBoolean(Object value) {
        if (value instanceof Boolean)
            return ((Boolean) value).booleanValue();
        if (value instanceof Number) {
            return ((Number) value).intValue() > 0;
        } else {
            String boolString = (String) value;
            return boolString != null && !boolString.equals("") && !boolString.equalsIgnoreCase("false");
        }
    }

    /**
     * Return the boolean value. if value is null return false.
     * 
     * @param value
     * @return
     */
    public static boolean booleanValue(Boolean value) {
        if (value == null)
            return false;
        else
            return value.booleanValue();
    }

    /**
     * If not equal return true.else return false. used {@link #isNotEqual(Object, Object)}
     * 
     * @param <T>
     * @param actual
     * @param expect
     * @return
     */
    public static boolean booleanValue(String booleanValue) {
        if ("true".equalsIgnoreCase(booleanValue))
            return true;
        else
            return false;
    }
}

Related

1. addReferenceIdsToServiceProperties(String prefix, Map referenceProps, Dictionary serviceProps)
2. containsKey(Dictionary dict, String key)
3. getSpringContextHeader(Dictionary headers)
4. getState(Dictionary conf, String property)
5. getString(Dictionary p, Object key, String defaultValue)
6. isNullOrNothing(final Object[] array)