Source Code Cross Referenced for URLEditor.java in  » J2EE » spring-framework-2.5 » org » springframework » beans » propertyeditors » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.beans.propertyeditors 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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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