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1
11 package org.eclipse.pde.internal.core.site;
12
13 import java.io.PrintWriter  ;
14
15 import org.eclipse.core.runtime.CoreException;
16 import org.eclipse.core.runtime.IStatus;
17 import org.eclipse.core.runtime.PlatformObject;
18 import org.eclipse.core.runtime.Status;
19 import org.eclipse.pde.core.ModelChangedEvent;
20 import org.eclipse.pde.internal.core.PDECore;
21 import org.eclipse.pde.internal.core.PDECoreMessages;
22 import org.eclipse.pde.internal.core.isite.ISite;
23 import org.eclipse.pde.internal.core.isite.ISiteModel;
24 import org.eclipse.pde.internal.core.isite.ISiteObject;
25 import org.w3c.dom.NamedNodeMap ;
26 import org.w3c.dom.Node ;
27
28 public abstract class SiteObject
29 extends PlatformObject
30 implements ISiteObject {
31 transient ISiteModel model;
32 transient ISiteObject parent;
33 protected String label;
34 boolean inTheModel;
35
36 void setInTheModel(boolean value) {
37 inTheModel = value;
38 }
39
40 public boolean isInTheModel() {
41 return inTheModel;
42 }
43
44 protected void ensureModelEditable() throws CoreException {
45 if (!model.isEditable()) {
46 throwCoreException(PDECoreMessages.SiteObject_readOnlyChange);
47 }
48 }
49 protected void firePropertyChanged(
50 String property,
51 Object oldValue,
52 Object newValue) {
53 firePropertyChanged(this, property, oldValue, newValue);
54 }
55 protected void firePropertyChanged(
56 ISiteObject object,
57 String property,
58 Object oldValue,
59 Object newValue) {
60 if (model.isEditable()) {
61 model.fireModelObjectChanged(object, property, oldValue, newValue);
62 }
63 }
64 protected void fireStructureChanged(ISiteObject child, int changeType) {
65 fireStructureChanged(new ISiteObject[] { child }, changeType);
66 }
67 protected void fireStructureChanged(
68 ISiteObject[] children,
69 int changeType) {
70 ISiteModel model = getModel();
71 if (model.isEditable()) {
72 model.fireModelChanged(new ModelChangedEvent(model, changeType, children, null));
73 }
74 }
75 public ISite getSite() {
76 return model.getSite();
77 }
78 public String getLabel() {
79 return label;
80 }
81
82 public String getTranslatableLabel() {
83 if (label == null)
84 return ""; return model.getResourceString(label);
86 }
87 public ISiteModel getModel() {
88 return model;
89 }
90 String getNodeAttribute(Node node, String name) {
91 NamedNodeMap atts = node.getAttributes();
92 Node attribute = null;
93 if (atts != null)
94 attribute = atts.getNamedItem(name);
95 if (attribute != null)
96 return attribute.getNodeValue();
97 return null;
98 }
99
100 int getIntegerAttribute(Node node, String name) {
101 String value = getNodeAttribute(node, name);
102 if (value != null) {
103 try {
104 return Integer.parseInt(value);
105 } catch (NumberFormatException e) {
106 }
107 }
108 return 0;
109 }
110
111 boolean getBooleanAttribute(Node node, String name) {
112 String value = getNodeAttribute(node, name);
113 if (value != null) {
114 return value.equalsIgnoreCase("true"); }
116 return false;
117 }
118
119 protected String getNormalizedText(String source) {
120 String result = source.replace('\t', ' ');
121 result = result.trim();
122
123 return result;
124 }
125
126 public ISiteObject getParent() {
127 return parent;
128 }
129
130 protected void parse(Node node) {
131 label = getNodeAttribute(node, "label"); }
133
134 protected void reset() {
135 label = null;
136 }
137
138 public void setLabel(String newLabel) throws CoreException {
139 ensureModelEditable();
140 Object oldValue = this.label;
141 label = newLabel;
142 firePropertyChanged(P_LABEL, oldValue, newLabel);
143 }
144 protected void throwCoreException(String message) throws CoreException {
145 Status status =
146 new Status(IStatus.ERROR, PDECore.PLUGIN_ID, IStatus.OK, message, null);
147 CoreException ce= new CoreException(status);
148 ce.fillInStackTrace();
149 throw ce;
150 }
151
152 public static String getWritableString(String source) {
153 if (source == null)
154 return ""; StringBuffer buf = new StringBuffer ();
156 for (int i = 0; i < source.length(); i++) {
157 char c = source.charAt(i);
158 switch (c) {
159 case '&' :
160 buf.append("&"); break;
162 case '<' :
163 buf.append("<"); break;
165 case '>' :
166 buf.append(">"); break;
168 case '\'' :
169 buf.append("'"); break;
171 case '\"' :
172 buf.append("""); break;
174 default :
175 buf.append(c);
176 break;
177 }
178 }
179 return buf.toString();
180 }
181
182 public void restoreProperty(String name, Object oldValue, Object newValue)
183 throws CoreException {
184 if (name.equals(P_LABEL)) {
185 setLabel(newValue != null ? newValue.toString() : null);
186 }
187 }
188
189 public void write(String indent, PrintWriter writer) {
190 }
191 public void setModel(ISiteModel model) {
192 this.model = model;
193 }
194
195 public void setParent(ISiteObject parent) {
196 this.parent = parent;
197 }
198 }
199 |
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