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.scripting.ScriptingState;
28: import de.schlund.pfixcore.workflow.State;
29: import de.schlund.pfixxml.config.ContextXMLServletConfig;
30:
31: public class PagerequestStateRule extends CheckedRule {
32: public PagerequestStateRule(ContextXMLServletConfig config) {
33: }
34:
35: public void begin(String namespace, String name,
36: Attributes attributes) throws Exception {
37: check(namespace, name, attributes);
38: PageRequestConfigImpl pageConfig = (PageRequestConfigImpl) this
39: .getDigester().peek();
40: String className = attributes.getValue("class");
41: if (className == null) {
42: throw new SAXException(
43: "Mandatory attribute \"class\" is missing!");
44: }
45: Class<?> clazz;
46: if (className.startsWith("script:")) {
47: String scriptName = className.substring(7);
48: pageConfig.getProperties().setProperty(
49: ScriptingState.PROP_SCRIPT_PATH, scriptName);
50: clazz = ScriptingState.class;
51: } else {
52: try {
53: clazz = Class.forName(className);
54: } catch (ClassNotFoundException e) {
55: throw new SAXException("Could not load class \""
56: + className + "\"!", e);
57: }
58: }
59: if (!State.class.isAssignableFrom(clazz)) {
60: throw new SAXException("State " + clazz + " for page "
61: + pageConfig.getPageName() + " does not implement "
62: + State.class + " interface!");
63: }
64: pageConfig.setState(clazz.asSubclass(State.class));
65: }
66:
67: protected Map<String, Boolean> wantsAttributes() {
68: HashMap<String, Boolean> atts = new HashMap<String, Boolean>();
69: atts.put("class", true);
70: return atts;
71: }
72: }
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