maputils.java

来自「Java有关XML编程需要用到axis 的源代码 把里面bin下的包导入相应」· Java 代码 · 共 120 行

/*
 * Copyright 2001, 2002,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.axis.transport.jms;

import java.util.Map;

/**
 * MapUtils provides convenience methods for accessing a java.util.Map
 *
 * @author Jaime Meritt  ([e-mail])
 * @author Richard Chung ([e-mail])
 * @author Dave Chappell ([e-mail])
 */
public class MapUtils
{
    /**
     * Returns an int property from a Map and removes it.
     *
     * @param properties
     * @param key
     * @param defaultValue
     * @return
     */
    public static int removeIntProperty(Map properties, String key, int defaultValue)
    {
        int value = defaultValue;
        if(properties != null && properties.containsKey(key))
        {
            try{value = ((Integer)properties.remove(key)).intValue();}catch(Exception ignore){}
        }
        return value;
    }

    /**
     * Returns a long property from a Map and removes it.
     *
     * @param properties
     * @param key
     * @param defaultValue
     * @return
     */
    public static long removeLongProperty(Map properties, String key, long defaultValue)
    {
        long value = defaultValue;
        if(properties != null && properties.containsKey(key))
        {
            try{value = ((Long)properties.remove(key)).longValue();}catch(Exception ignore){}
        }
        return value;
    }

    /**
     * Returns a String property from a Map and removes it.
     *
     * @param properties
     * @param key
     * @param defaultValue
     * @return
     */
    public static String removeStringProperty(Map properties, String key, String defaultValue)
    {
        String value = defaultValue;
        if(properties != null && properties.containsKey(key))
        {
            try{value = (String)properties.remove(key);}catch(Exception ignore){}
        }
        return value;
    }

    /**
     * Returns a boolean property from a Map and removes it.
     *
     * @param properties
     * @param key
     * @param defaultValue
     * @return
     */
    public static boolean removeBooleanProperty(Map properties, String key, boolean defaultValue)
    {
        boolean value = defaultValue;
        if(properties != null && properties.containsKey(key))
        {
            try{value = ((Boolean)properties.remove(key)).booleanValue();}catch(Exception ignore){}
        }
        return value;
    }

    /**
     * Returns an Object property from a Map and removes it.
     *
     * @param properties
     * @param key
     * @param defaultValue
     * @return
     */
    public static Object removeObjectProperty(Map properties, String key, Object defaultValue)
    {
        Object value = defaultValue;
        if(properties != null && properties.containsKey(key))
        {
            value = properties.remove(key);
        }
        return value;
    }
}