tableresourcebundle.java

ecside jsp前途分页的标签 实现ajax 增删改查等

/*
 * Copyright 2004 original author or authors.
 *
 * 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.ecside.resource;

import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.ecside.common.log.LogHandler;
import org.ecside.core.Messages;
import org.ecside.core.TableModelUtils;
import org.ecside.core.context.WebContext;

/**
 * Load up the resource bundle that will be used by the Model.
 * 
 * @author Jeff Johnston
 */
public class TableResourceBundle implements Messages {
    private Log logger = LogFactory.getLog(TableResourceBundle.class);

    public final static String EXTREMETABLE_RESOURCE_BUNDLE = "org.ecside.resource.ecsideResourceBundle";

    private ResourceBundle defaultResourceBundle;
    private Locale locale;
    
    
    private List customResourceBundleList = new ArrayList(); 
    private static String SPLIT = ","; 
    

    public void init(WebContext context, Locale locale) {
    	
    	this.locale = locale; 
    	defaultResourceBundle = findResourceBundle(EXTREMETABLE_RESOURCE_BUNDLE, locale); 
    	String messagesLocations = TableModelUtils.getMessagesLocation(context); 
    	
    	if (StringUtils.isBlank(messagesLocations)){
    		return;
    	}
    	
    	String[] messagesLocationA = messagesLocations.split(SPLIT);
    	String messagesLocation;
    	for(int i=0; i < messagesLocationA.length ;i++ ) { 
    		messagesLocation=messagesLocationA[i].trim();
	    	if (StringUtils.isNotBlank( messagesLocation )) { 
	    		customResourceBundleList.add(findResourceBundle(messagesLocation, locale)); 
	    	} 
    	} 

    }

    private ResourceBundle findResourceBundle(String resourceBundleLocation, Locale locale) {
        try {
            return ResourceBundle.getBundle(resourceBundleLocation, locale, getClass().getClassLoader());
        } catch (MissingResourceException e) {
            LogHandler.errorLog(logger,"The resource bundle [ " + resourceBundleLocation + "] was not found. Make sure the path and resource name is correct.", e);
        }

        return null;
    }

    /**
     * Get the resource property.
     */
    public String getMessage(String code) {
        return getMessage(code, null);
    }

    /**
	 * Get the resource property.
	 */
    public String getMessage(String code, Object[] args) {
		String result = null;
		ResourceBundle customResourceBundle;
		for (int i = 0; i < customResourceBundleList.size(); i++) {
			customResourceBundle = (ResourceBundle) customResourceBundleList
					.get(i);
			result = findResource(customResourceBundle, code);
			if (result != null) {
				break;
			}
		}

		if (result == null) {
			result = findResource(defaultResourceBundle, code);
		}

		if (result != null && args != null) {
			MessageFormat formatter = new MessageFormat("");
			formatter.setLocale(locale);
			formatter.applyPattern(result);
			result = formatter.format(args);
		}

		return result;
	}
    



    private String findResource(ResourceBundle resourceBundle, String code) {
        String result = null;

        if (resourceBundle == null) {
            return result;
        }

        try {
            result = resourceBundle.getString(code);
        } catch (MissingResourceException e) {
            // nothing we can do so eat the message
        }

        return result;
    }
}