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11 package org.eclipse.pde.internal.core.feature;
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.IModelChangeProvider;
20 import org.eclipse.pde.core.ModelChangedEvent;
21 import org.eclipse.pde.internal.core.PDECore;
22 import org.eclipse.pde.internal.core.PDECoreMessages;
23 import org.eclipse.pde.internal.core.ifeature.IFeature;
24 import org.eclipse.pde.internal.core.ifeature.IFeatureModel;
25 import org.eclipse.pde.internal.core.ifeature.IFeatureObject;
26 import org.eclipse.pde.internal.core.util.PDEXMLHelper;
27 import org.w3c.dom.Node ;
28
29 public abstract class FeatureObject
30 extends PlatformObject
31 implements IFeatureObject {
32 transient IFeatureModel model;
33 transient IFeatureObject parent;
34 protected String label;
35 boolean inTheModel;
36
37 void setInTheModel(boolean value) {
38 inTheModel = value;
39 }
40
41 public boolean isInTheModel() {
42 return inTheModel;
43 }
44
45 protected void ensureModelEditable() throws CoreException {
46 if (!model.isEditable()) {
47 throwCoreException(PDECoreMessages.FeatureObject_readOnlyChange);
48 }
49 }
50 protected void firePropertyChanged(
51 String property,
52 Object oldValue,
53 Object newValue) {
54 firePropertyChanged(this, property, oldValue, newValue);
55 }
56 protected void firePropertyChanged(
57 IFeatureObject object,
58 String property,
59 Object oldValue,
60 Object newValue) {
61 if (model.isEditable()) {
62 IModelChangeProvider provider = model;
63 provider.fireModelObjectChanged(object, property, oldValue, newValue);
64 }
65 }
66 protected void fireStructureChanged(IFeatureObject child, int changeType) {
67 fireStructureChanged(new IFeatureObject[] { child }, changeType);
68 }
69 protected void fireStructureChanged(
70 IFeatureObject[] children,
71 int changeType) {
72 IFeatureModel model = getModel();
73 if (model.isEditable()) {
74 IModelChangeProvider provider = model;
75 provider.fireModelChanged(new ModelChangedEvent(provider, changeType, children, null));
76 }
77 }
78 public IFeature getFeature() {
79 return model.getFeature();
80 }
81 public String getLabel() {
82 return label;
83 }
84
85 public String getTranslatableLabel() {
86 if (label == null)
87 return ""; return model.getResourceString(label);
89 }
90 public IFeatureModel getModel() {
91 return model;
92 }
93 String getNodeAttribute(Node node, String name) {
94 Node attribute = node.getAttributes().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 IFeatureObject 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 void restoreProperty(String name, Object oldValue, Object newValue)
153 throws CoreException {
154 if (name.equals(P_LABEL)) {
155 setLabel(newValue != null ? newValue.toString() : null);
156 }
157 }
158
159 public void write(String indent, PrintWriter writer) {
160 }
161 public void setModel(IFeatureModel model) {
162 this.model = model;
163 }
164
165 public void setParent(IFeatureObject parent) {
166 this.parent = parent;
167 }
168
169 protected String getWritableString(String source) {
170 return PDEXMLHelper.getWritableString(source);
171 }
172 }
173 |
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