1 /**
2 * Copyright (C) 2005-2009 Alfresco Software Limited.
3 *
4 * This file is part of the Spring Surf Extension project.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package org.springframework.extensions.webscripts;
20
21 import java.io.StringReader;
22
23 import org.apache.commons.logging.Log;
24 import org.apache.commons.logging.LogFactory;
25 import org.springframework.extensions.config.ConfigService;
26 import org.xml.sax.InputSource;
27
28 import freemarker.ext.dom.NodeModel;
29
30 /**
31 * Model representation of configuration for use in scripts.
32 *
33 * @author Gavin Cornwell
34 */
35 public class TemplateConfigModel extends ConfigModel
36 {
37 private NodeModel model;
38
39 private static Log logger = LogFactory.getLog(TemplateConfigModel.class);
40
41 /**
42 * Constructor
43 *
44 * @param configService ConfigService instance
45 * @param scriptConfig The script's config as XML string
46 */
47 public TemplateConfigModel(ConfigService configService, String scriptConfig)
48 {
49 super(configService, scriptConfig);
50
51 if (logger.isDebugEnabled())
52 logger.debug(this.toString() + " created:\nconfig service: " +
53 this.configService + "\nglobal config: " + this.globalConfig +
54 "\nscript config: " + this.scriptConfig);
55 }
56
57 /**
58 * Returns the script's config as a Freemarker NodeModel object
59 *
60 * @return Script config as a Freemarker NodeModel object
61 */
62 @Override
63 public Object getScript()
64 {
65 if (this.model != null)
66 {
67 return this.model;
68 }
69
70 // if we get this far attempt to create the model, if we have
71 // something to create with
72 if (this.scriptConfig != null && this.model == null)
73 {
74 StringReader reader = new StringReader(this.scriptConfig);
75 InputSource is = new InputSource(reader);
76 try
77 {
78 this.model = NodeModel.parse(is);
79 return this.model;
80 }
81 catch (Exception e)
82 {
83 if (logger.isWarnEnabled())
84 logger.warn("Failed to create 'script' config model: " + e.getMessage());
85 }
86 }
87
88 // if we make it here return empty model
89 return NodeModel.NOTHING;
90 }
91 }