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1
19
20 package org.netbeans.modules.tasklist.core.filter;
21
22 import java.beans.PropertyChangeEvent  ;
23 import java.beans.PropertyChangeListener ;
24 import java.io.IOException ;
25 import java.util.ArrayList ;
26 import java.util.Iterator ;
27 import java.util.LinkedList ;
28 import org.netbeans.spi.settings.Convertor;
29 import org.netbeans.spi.settings.DOMConvertor;
30 import org.netbeans.spi.settings.Saver;
31 import org.openide.ErrorManager;
32 import org.w3c.dom.Document ;
33 import org.w3c.dom.Element ;
34 import org.w3c.dom.Node ;
35 import org.w3c.dom.NodeList ;
36 import org.netbeans.modules.tasklist.core.filter.SuggestionProperty;
37 import org.netbeans.modules.tasklist.core.filter.SuggestionProperties;
38
39
40
47 public abstract class FilterConvertor extends DOMConvertor implements PropertyChangeListener {
48
49 private static final String ATTR_ALLTRUE = "allTrue";
50 private static final String ELEM_FILTER = "Filter";
51 private static final String ELEM_CONDITION = "Condition";
52 private static final String ATTR_NAME = "name";
53 private static final String ATTR_PROPID = "propertyId";
54
55
56 private Saver saver;
57
58
59 protected FilterConvertor(String rootElement) {
60 this("-//NetBeans org.netbeans.modules.tasklist//DTD " + rootElement + " 1.0//EN", "http://tasklist.netbeans.org/dtd/filter-1_0.dtd", rootElement);
62 }
63
64 protected FilterConvertor(String publicID, String systemID, String root) {
65 super(publicID, systemID, root);
66 }
67
68 protected abstract Filter createFilter();
69
70 protected SuggestionProperty getProperty(String propid) {
71 return SuggestionProperties.getProperty(propid);
72 }
73
74 protected Object readElement(org.w3c.dom.Element element) throws java.io.IOException , java.lang.ClassNotFoundException {
75 Filter f = createFilter();
76 readFilter(element, f);
77 return f;
78 }
79
80 protected void readFilter(org.w3c.dom.Element element, Filter filter) throws java.io.IOException , java.lang.ClassNotFoundException {
81 filter.setMatchAll(Boolean.valueOf(element.getAttribute(ATTR_ALLTRUE)).booleanValue());
82 filter.setName(element.getAttribute(ATTR_NAME));
83
84 LinkedList conditions = new LinkedList ();
85 Node child = element.getFirstChild();
86 while (child != null) {
87 if (child.getNodeType() == Node.ELEMENT_NODE) {
88 FilterCondition fc = (FilterCondition)this.delegateRead((Element )child);
89 String propid = ((Element )child).getAttribute(ATTR_PROPID);
90 AppliedFilterCondition afc = new AppliedFilterCondition(getProperty(propid), fc);
91 conditions.add(afc);
92 }
93 child = child.getNextSibling();
94 }
95
96 filter.setConditions(conditions);
97 }
98
99 protected void writeElement(org.w3c.dom.Document document, org.w3c.dom.Element element, Object obj) throws java.io.IOException , org.w3c.dom.DOMException {
100 Filter filter = (Filter)obj;
101 writeFilter(document, element, filter);
102 }
103
104 protected void writeFilter(org.w3c.dom.Document document, org.w3c.dom.Element element, Filter filter) throws java.io.IOException , org.w3c.dom.DOMException {
105 element.setAttribute(ATTR_ALLTRUE, Boolean.toString(filter.matchAll()));
106 element.setAttribute(ATTR_NAME, filter.getName());
107
108 Iterator it = filter.getConditions().iterator();
109 while (it.hasNext()) {
110 AppliedFilterCondition afc = (AppliedFilterCondition)it.next();
111 Element e = this.delegateWrite(document, afc.getCondition());
112 e.setAttribute(ATTR_PROPID, afc.getProperty().getID());
113 element.appendChild(e);
114 }
115 }
116
117 public void registerSaver(Object obj, org.netbeans.spi.settings.Saver saver) {
118 this.saver = saver;
119 ((Filter)obj).addPropertyChangeListener(this);
120 }
121
122 public void unregisterSaver(Object obj, org.netbeans.spi.settings.Saver saver) {
123 if (saver == null || saver != this.saver) {
124 ErrorManager.getDefault().notify(ErrorManager.ERROR,
125 new IllegalArgumentException (
126 "Wrong argument for unregisterSaver(Object=" + obj + ", Saver=" + saver + ")")); }
129 ((Filter)obj).removePropertyChangeListener(this);
130 this.saver = null;
131 }
132
133
134 public void propertyChange(PropertyChangeEvent evt) {
135 try {
136 saver.requestSave();
137 } catch (IOException e) {
138 ErrorManager.getDefault().notify(e);
139 }
140 }
141
142 }
143 |
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