Source Code Cross Referenced for IDAssigner.java in  » Web-Framework » RSF » uk » org » ponder » rsf » renderer » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » RSF » uk.org.ponder.rsf.renderer 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:         * Created on 26 Feb 2007
03:         */
04:        package uk.org.ponder.rsf.renderer;
05:
06:        import java.util.HashMap;
07:        import java.util.Map;
08:
09:        import uk.org.ponder.rsf.components.UIComponent;
10:        import uk.org.ponder.rsf.components.decorators.UIDecorator;
11:        import uk.org.ponder.rsf.components.decorators.UIIDStrategyDecorator;
12:        import uk.org.ponder.rsf.content.ContentTypeInfo;
13:        import uk.org.ponder.rsf.template.XMLLump;
14:
15:        /** Implements the strategy as represented by any {@link UIIDStrategyDecorator}
16:         * registered either on a tag, or content type, for assigning an XML id to the
17:         * tag in the output markup.
18:         * 
19:         * @author Antranig Basman (antranig@caret.cam.ac.uk)
20:         *
21:         */
22:
23:        public class IDAssigner {
24:            private static final int[] USED_ONCE = new int[] { 1 };
25:            private Map assigned = new HashMap();
26:            private String defaultstrategy;
27:
28:            public IDAssigner(String defaultstrategy) {
29:                this .defaultstrategy = defaultstrategy;
30:            }
31:
32:            public void adjustForID(Map attrcopy, UIComponent component) {
33:                String ID = null;
34:                String IDstrategy = defaultstrategy;
35:
36:                if (component.decorators != null) {
37:                    for (int i = 0; i < component.decorators.size(); ++i) {
38:                        UIDecorator dec = component.decorators.decoratorAt(i);
39:                        if (dec instanceof  UIIDStrategyDecorator) {
40:                            UIIDStrategyDecorator ids = (UIIDStrategyDecorator) dec;
41:                            IDstrategy = ids.IDStrategy;
42:                            if (ids.IDStrategy
43:                                    .equals(UIIDStrategyDecorator.ID_MANUAL)) {
44:                                ID = ids.ID;
45:                            }
46:                            break;
47:                        }
48:                    }
49:                }
50:                if (ID == null) {
51:                    if (IDstrategy.equals(ContentTypeInfo.ID_FORCE)
52:                            || (IDstrategy.equals(ContentTypeInfo.ID_FULL) && attrcopy
53:                                    .get("id") != null)) {
54:                        ID = component.getFullID();
55:                    }
56:                }
57:                if (ID != null) {
58:                    int[] assnum = (int[]) assigned.get(ID);
59:                    if (assnum != null) {
60:                        ID = ID + "!" + Integer.toString(assnum[0]);
61:                        if (assnum == USED_ONCE) {
62:                            assnum = new int[] { 1 };
63:                            assigned.put(ID, assnum);
64:                        }
65:                        ++assnum[0];
66:                    } else {
67:                        assigned.put(ID, USED_ONCE);
68:                    }
69:                    attrcopy.put("id", ID);
70:                }
71:                if (!IDstrategy.equals(ContentTypeInfo.ID_RSF)) {
72:                    attrcopy.remove(XMLLump.ID_ATTRIBUTE);
73:                }
74:            }
75:
76:        }
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