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1
11 package org.eclipse.ui.internal.wizards.preferences;
12
13 import java.io.File  ;
14 import java.io.FileInputStream ;
15 import java.io.FileNotFoundException ;
16 import java.io.IOException ;
17
18 import org.eclipse.core.runtime.CoreException;
19 import org.eclipse.core.runtime.Platform;
20 import org.eclipse.core.runtime.preferences.IExportedPreferences;
21 import org.eclipse.core.runtime.preferences.IPreferenceFilter;
22 import org.eclipse.core.runtime.preferences.IPreferencesService;
23 import org.eclipse.jface.dialogs.MessageDialog;
24 import org.eclipse.swt.SWT;
25 import org.eclipse.swt.widgets.Composite;
26 import org.eclipse.swt.widgets.Event;
27 import org.eclipse.ui.internal.WorkbenchPlugin;
28 import org.eclipse.ui.internal.preferences.PreferenceTransferElement;
29
30
36 public class WizardPreferencesImportPage1 extends WizardPreferencesPage {
37
38
42 protected WizardPreferencesImportPage1(String pageName) {
43 super(pageName);
44 setTitle(PreferencesMessages.WizardPreferencesImportPage1_importTitle);
45 setDescription(PreferencesMessages.WizardPreferencesImportPage1_importDescription);
46 }
47
48
51 public WizardPreferencesImportPage1() {
52 this("preferencesImportPage1"); }
54
55
58 protected String getAllButtonText() {
59 return PreferencesMessages.WizardPreferencesImportPage1_all;
60 }
61
62
65 protected String getChooseButtonText() {
66 return PreferencesMessages.WizardPreferencesImportPage1_choose;
67 }
68
69
70
73 protected PreferenceTransferElement[] getTransfers() {
74 if (validFromFile()) {
75 FileInputStream fis;
76
77 try {
78 fis = new FileInputStream (getDestinationValue());
79 } catch (FileNotFoundException e) {
80 WorkbenchPlugin.log(e.getMessage(), e);
81 return new PreferenceTransferElement[0];
82 }
83 IPreferencesService service = Platform.getPreferencesService();
84 try {
85 IExportedPreferences prefs;
86 prefs = service.readPreferences(fis);
87 PreferenceTransferElement[] transfers = super.getTransfers();
88 IPreferenceFilter[] filters = new IPreferenceFilter[transfers.length];
89 for (int i = 0; i < transfers.length; i++) {
90 PreferenceTransferElement transfer = transfers[i];
91 filters[i] = transfer.getFilter();
92 }
93 IPreferenceFilter[] matches = service.matches(prefs, filters);
94 PreferenceTransferElement[] returnTransfers = new PreferenceTransferElement[matches.length];
95 int index = 0;
96 for (int i = 0; i < matches.length; i++) {
97 IPreferenceFilter filter = matches[i];
98 for (int j = 0; j < transfers.length; j++) {
99 PreferenceTransferElement element = transfers[j];
100 if (element.getFilter().equals(filter)) {
101 returnTransfers[index++] = element;
102 }
103 }
104 }
105
106 PreferenceTransferElement[] destTransfers = new PreferenceTransferElement[index];
107 System.arraycopy(returnTransfers, 0, destTransfers, 0, index);
108 return destTransfers;
109 } catch (CoreException e) {
110 } finally {
113 try {
114 fis.close();
115 } catch (IOException e) {
116 WorkbenchPlugin.log(e.getMessage(), e);
117 }
118 }
119 }
120
121 return new PreferenceTransferElement[0];
122 }
123
124
129 private boolean validFromFile() {
130 File fromFile = new File (getDestinationValue());
131 return fromFile.exists() && !fromFile.isDirectory();
132 }
133
134 protected void setPreferenceTransfers() {
135 super.setPreferenceTransfers();
136
137 if(validFromFile() && (transfersTable.getItemCount() == 0)) {
138 text.setText(PreferencesMessages.WizardPreferences_noSpecificPreferenceDescription);
139 } else {
140 text.setText(""); }
142 }
143
144
147 protected void createTransferArea(Composite composite) {
148 createDestinationGroup(composite);
149 createTransfersList(composite);
150 }
151
152
157 protected String getDestinationLabel() {
158 return PreferencesMessages.WizardPreferencesImportPage1_file;
159 }
160
161
166 protected boolean transfer(IPreferenceFilter[] filters) {
167 File importFile = new File (getDestinationValue());
168 FileInputStream fis = null;
169 try {
170 if (filters.length > 0) {
171 try {
172 fis = new FileInputStream (importFile);
173 } catch (FileNotFoundException e) {
174 WorkbenchPlugin.log(e.getMessage(), e);
175 MessageDialog.openError(getControl().getShell(), new String (), e.getLocalizedMessage());
176 return false;
177 }
178 IPreferencesService service = Platform.getPreferencesService();
179 try {
180 IExportedPreferences prefs = service.readPreferences(fis);
181
182 service.applyPreferences(prefs, filters);
183 } catch (CoreException e) {
184 WorkbenchPlugin.log(e.getMessage(), e);
185 MessageDialog.openError(getControl().getShell(), new String (), e.getLocalizedMessage());
186 return false;
187 }
188 }
189 } finally {
190 if (fis != null) {
191 try {
192 fis.close();
193 } catch (IOException e) {
194 WorkbenchPlugin.log(e.getMessage(), e);
195 MessageDialog.openError(getControl().getShell(), new String (), e.getLocalizedMessage());
196 }
197 }
198 }
199 return true;
200 }
201
202
208 public void handleEvent(Event e) {
209 if (e.widget == destinationNameField) {
210 setPreferenceTransfers();
211 }
212
213 super.handleEvent(e);
214 }
215
216
219 protected String getFileDialogTitle(){
220 return PreferencesMessages.WizardPreferencesImportPage1_title;
221 }
222
223
226 protected int getFileDialogStyle() {
227 return SWT.OPEN;
228 }
229
230
233 protected boolean validDestination() {
234 return super.validDestination() && validFromFile();
235 }
236
237
240 protected String getInvalidDestinationMessage() {
241 return PreferencesMessages.WizardPreferencesImportPage1_invalidPrefFile;
242 }
243 }
244 |
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