Spring Framework example source code file (URLEditor.java)

This example Spring Framework source code file (URLEditor.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

bean, could, illegalargumentexception, illegalargumentexception, io, ioexception, javabean, net, network, propertyeditorsupport, resource, resourceeditor, resourceeditor, string, url, url, urleditor, urleditor

The Spring Framework URLEditor.java source code

/*
 * Copyright 2002-2006 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.beans.propertyeditors;

import java.beans.PropertyEditorSupport;
import java.io.IOException;
import java.net.URL;

import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceEditor;
import org.springframework.util.Assert;

/**
 * Editor for <code>java.net.URL, to directly populate a URL property
 * instead of using a String property as bridge.
 *
 * <p>Supports Spring-style URL notation: any fully qualified standard URL
 * ("file:", "http:", etc) and Spring's special "classpath:" pseudo-URL,
 * as well as Spring's context-specific relative file paths.
 *
 * <p>Note: A URL must specify a valid protocol, else it will be rejected
 * upfront. However, the target resource does not necessarily have to exist
 * at the time of URL creation; this depends on the specific resource type.
 *
 * @author Juergen Hoeller
 * @since 15.12.2003
 * @see java.net.URL
 * @see org.springframework.core.io.ResourceEditor
 * @see org.springframework.core.io.ResourceLoader
 * @see FileEditor
 * @see InputStreamEditor
 */
public class URLEditor extends PropertyEditorSupport {

	private final ResourceEditor resourceEditor;


	/**
	 * Create a new URLEditor, using the default ResourceEditor underneath.
	 */
	public URLEditor() {
		this.resourceEditor = new ResourceEditor();
	}

	/**
	 * Create a new URLEditor, using the given ResourceEditor underneath.
	 * @param resourceEditor the ResourceEditor to use
	 */
	public URLEditor(ResourceEditor resourceEditor) {
		Assert.notNull(resourceEditor, "ResourceEditor must not be null");
		this.resourceEditor = resourceEditor;
	}


	public void setAsText(String text) throws IllegalArgumentException {
		this.resourceEditor.setAsText(text);
		Resource resource = (Resource) this.resourceEditor.getValue();
		try {
			setValue(resource != null ? resource.getURL() : null);
		}
		catch (IOException ex) {
			throw new IllegalArgumentException("Could not retrieve URL for " + resource + ": " + ex.getMessage());
		}
	}

	public String getAsText() {
		URL value = (URL) getValue();
		return (value != null ? value.toExternalForm() : "");
	}

}