01: /*
02: * Copyright 2002-2006 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16:
17: package org.springframework.beans.propertyeditors;
18:
19: import java.beans.PropertyEditorSupport;
20: import java.io.IOException;
21: import java.net.URL;
22:
23: import org.springframework.core.io.Resource;
24: import org.springframework.core.io.ResourceEditor;
25: import org.springframework.util.Assert;
26:
27: /**
28: * Editor for <code>java.net.URL</code>, to directly populate a URL property
29: * instead of using a String property as bridge.
30: *
31: * <p>Supports Spring-style URL notation: any fully qualified standard URL
32: * ("file:", "http:", etc) and Spring's special "classpath:" pseudo-URL,
33: * as well as Spring's context-specific relative file paths.
34: *
35: * <p>Note: A URL must specify a valid protocol, else it will be rejected
36: * upfront. However, the target resource does not necessarily have to exist
37: * at the time of URL creation; this depends on the specific resource type.
38: *
39: * @author Juergen Hoeller
40: * @since 15.12.2003
41: * @see java.net.URL
42: * @see org.springframework.core.io.ResourceEditor
43: * @see org.springframework.core.io.ResourceLoader
44: * @see FileEditor
45: * @see InputStreamEditor
46: */
47: public class URLEditor extends PropertyEditorSupport {
48:
49: private final ResourceEditor resourceEditor;
50:
51: /**
52: * Create a new URLEditor, using the default ResourceEditor underneath.
53: */
54: public URLEditor() {
55: this .resourceEditor = new ResourceEditor();
56: }
57:
58: /**
59: * Create a new URLEditor, using the given ResourceEditor underneath.
60: * @param resourceEditor the ResourceEditor to use
61: */
62: public URLEditor(ResourceEditor resourceEditor) {
63: Assert.notNull(resourceEditor,
64: "ResourceEditor must not be null");
65: this .resourceEditor = resourceEditor;
66: }
67:
68: public void setAsText(String text) throws IllegalArgumentException {
69: this .resourceEditor.setAsText(text);
70: Resource resource = (Resource) this .resourceEditor.getValue();
71: try {
72: setValue(resource != null ? resource.getURL() : null);
73: } catch (IOException ex) {
74: throw new IllegalArgumentException(
75: "Could not retrieve URL for " + resource + ": "
76: + ex.getMessage());
77: }
78: }
79:
80: public String getAsText() {
81: URL value = (URL) getValue();
82: return (value != null ? value.toExternalForm() : "");
83: }
84:
85: }
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