home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Spring Framework example source code file (ResourceMapFactoryBean.java)

This example Spring Framework source code file (ResourceMapFactoryBean.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

defaultresourceloader, defaultresourceloader, enumeration, io, ioexception, map, object, object, properties, propertiesfactorybean, resourceloader, resourceloader, resourceloaderaware, string, string, util

The Spring Framework ResourceMapFactoryBean.java source code

/*
 * Copyright 2002-2005 the 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.springframework.context.support;

import java.io.IOException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.springframework.beans.factory.config.PropertiesFactoryBean;
import org.springframework.context.ResourceLoaderAware;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;

/**
 * FactoryBean that creates a Map with String keys and Resource values from
 * properties, interpreting passed-in String values as resource locations.
 *
 * <p>Extends PropertiesFactoryBean to inherit the capability of defining
 * local properties and loading from properties files.
 *
 * <p>Implements the ResourceLoaderAware interface to automatically use
 * the context ResourceLoader if running in an ApplicationContext.
 * Uses DefaultResourceLoader else.
 *
 * @author Juergen Hoeller
 * @author Keith Donald
 * @since 1.0.2
 * @see org.springframework.core.io.DefaultResourceLoader
 */
public class ResourceMapFactoryBean extends PropertiesFactoryBean implements ResourceLoaderAware {

	private String resourceBasePath = "";

	private ResourceLoader resourceLoader = new DefaultResourceLoader();


	/**
	 * Set a base path to prepend to each resource location value
	 * in the properties file.
	 * <p>E.g.: resourceBasePath="/images", value="/test.gif"
	 * -> location="/images/test.gif"
	 */
	public void setResourceBasePath(String resourceBasePath) {
		this.resourceBasePath = (resourceBasePath != null ? resourceBasePath : "");
	}

	public void setResourceLoader(ResourceLoader resourceLoader) {
		this.resourceLoader = (resourceLoader != null ? resourceLoader : new DefaultResourceLoader());
	}


	public Class getObjectType() {
		return Map.class;
	}

	/**
	 * Create the Map instance, populated with keys and Resource values.
	 */
	protected Object createInstance() throws IOException {
		Map resourceMap = new HashMap();
		Properties props = mergeProperties();
		for (Enumeration en = props.propertyNames(); en.hasMoreElements();) {
			String key = (String) en.nextElement();
			String location = props.getProperty(key);
			resourceMap.put(key, getResource(location));
		}
		return resourceMap;
	}

	/**
	 * Fetch the Resource handle for the given location,
	 * prepeding the resource base path.
	 * @param location the resource location
	 * @return the Resource handle
	 * @see org.springframework.core.io.ResourceLoader#getResource(String)
	 */
	protected Resource getResource(String location) {
		return this.resourceLoader.getResource(this.resourceBasePath + location);
	}

}

Other Spring Framework examples (source code examples)

Here is a short list of links related to this Spring Framework ResourceMapFactoryBean.java source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.