01: /*
02: * This file is part of PFIXCORE.
03: *
04: * PFIXCORE is free software; you can redistribute it and/or modify
05: * it under the terms of the GNU Lesser General Public License as published by
06: * the Free Software Foundation; either version 2 of the License, or
07: * (at your option) any later version.
08: *
09: * PFIXCORE is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12: * GNU Lesser General Public License for more details.
13: *
14: * You should have received a copy of the GNU Lesser General Public License
15: * along with PFIXCORE; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17: */
18:
19: package de.schlund.pfixxml.config.impl;
20:
21: import java.util.HashMap;
22: import java.util.Map;
23:
24: import org.xml.sax.Attributes;
25: import org.xml.sax.SAXException;
26:
27: import de.schlund.pfixcore.workflow.ContextResource;
28:
29: public class ContextResourceRule extends CheckedRule {
30:
31: private ContextXMLServletConfigImpl config;
32:
33: public ContextResourceRule(ContextXMLServletConfigImpl config) {
34: this .config = config;
35: }
36:
37: public void begin(String namespace, String name,
38: Attributes attributes) throws Exception {
39: check(namespace, name, attributes);
40: ContextConfigImpl ctxConfig = (ContextConfigImpl) this
41: .getDigester().peek();
42: String className = attributes.getValue("class");
43: if (className == null) {
44: throw new SAXException(
45: "Mandatory attribute \"class\" is missing!");
46: }
47: Class<?> clazz = null;
48: try {
49: clazz = Class.forName(className);
50: } catch (ClassNotFoundException e) {
51: throw new SAXException("Could not load class \""
52: + className + "\"!", e);
53: }
54: if (!ContextResource.class.isAssignableFrom(clazz)) {
55: throw new SAXException("ContextResource " + clazz
56: + " does not implement " + ContextResource.class
57: + " interface!");
58: }
59: ContextResourceConfigImpl crConfig = new ContextResourceConfigImpl(
60: clazz.asSubclass(ContextResource.class), config
61: .getContextConfig());
62: ctxConfig.addContextResource(crConfig);
63: this .getDigester().push(crConfig);
64: }
65:
66: public void end(String namespace, String name) throws Exception {
67: this .getDigester().pop();
68: }
69:
70: protected Map<String, Boolean> wantsAttributes() {
71: HashMap<String, Boolean> atts = new HashMap<String, Boolean>();
72: atts.put("class", true);
73: return atts;
74: }
75:
76: }
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