|
1
11 package org.eclipse.core.internal.content;
12
13 import java.util.List  ;
14 import org.eclipse.core.runtime.*;
15 import org.eclipse.core.runtime.content.IContentDescription;
16 import org.eclipse.core.runtime.content.IContentTypeSettings;
17 import org.eclipse.core.runtime.preferences.IScopeContext;
18 import org.eclipse.osgi.util.NLS;
19 import org.osgi.service.prefs.BackingStoreException;
20 import org.osgi.service.prefs.Preferences;
21
22 public class ContentTypeSettings implements IContentTypeSettings, IContentTypeInfo {
23
24 private ContentType contentType;
25 private IScopeContext context;
26
27 static void addFileSpec(IScopeContext context, String contentTypeId, String fileSpec, int type) throws CoreException {
28 Preferences contentTypeNode = ContentTypeManager.getInstance().getPreferences(context).node(contentTypeId);
29 String key = ContentType.getPreferenceKey(type);
30 List existingValues = Util.parseItemsIntoList(contentTypeNode.get(key, null));
31 for (int i = 0; i < existingValues.size(); i++)
32 if (((String ) existingValues.get(i)).equalsIgnoreCase(fileSpec))
33 return;
35 existingValues.add(fileSpec);
36 String newValue = Util.toListString(existingValues.toArray());
38 ContentType.setPreference(contentTypeNode, key, newValue);
39 try {
40 contentTypeNode.flush();
41 } catch (BackingStoreException bse) {
42 String message = NLS.bind(ContentMessages.content_errorSavingSettings, contentTypeId);
43 IStatus status = new Status(IStatus.ERROR, ContentMessages.OWNER_NAME, 0, message, bse);
44 throw new CoreException(status);
45 }
46 }
47
48 static String [] getFileSpecs(IScopeContext context, String contentTypeId, int type) {
49 Preferences contentTypeNode = ContentTypeManager.getInstance().getPreferences(context).node(contentTypeId);
50 return getFileSpecs(contentTypeNode, type);
51 }
52
53 static String [] getFileSpecs(Preferences contentTypeNode, int type) {
54 String key = ContentType.getPreferenceKey(type);
55 String existing = contentTypeNode.get(key, null);
56 return Util.parseItems(existing);
57 }
58
59 public static String internalGetDefaultProperty(ContentType current, final Preferences contentTypePrefs, final QualifiedName key) throws BackingStoreException {
60 String id = current.getId();
61 if (contentTypePrefs.nodeExists(id)) {
62 Preferences contentTypeNode = contentTypePrefs.node(id);
63 String propertyValue = contentTypeNode.get(key.getLocalName(), null);
64 if (propertyValue != null)
65 return propertyValue;
66 }
67 String propertyValue = current.basicGetDefaultProperty(key);
69 if (propertyValue != null)
70 return propertyValue;
71 ContentType baseType = (ContentType) current.getBaseType();
73 return baseType == null ? null : internalGetDefaultProperty(baseType, contentTypePrefs, key);
74 }
75
76 static void removeFileSpec(IScopeContext context, String contentTypeId, String fileSpec, int type) throws CoreException {
77 Preferences contentTypeNode = ContentTypeManager.getInstance().getPreferences(context).node(contentTypeId);
78 String key = ContentType.getPreferenceKey(type);
79 String existing = contentTypeNode.get(key, null);
80 if (existing == null)
81 return;
83 List existingValues = Util.parseItemsIntoList(contentTypeNode.get(key, null));
84 int index = -1;
85 int existingCount = existingValues.size();
86 for (int i = 0; index == -1 && i < existingCount; i++)
87 if (((String ) existingValues.get(i)).equalsIgnoreCase(fileSpec))
88 index = i;
89 if (index == -1)
90 return;
92 existingValues.remove(index);
93 String newValue = Util.toListString(existingValues.toArray());
95 ContentType.setPreference(contentTypeNode, key, newValue);
96 try {
97 contentTypeNode.flush();
98 } catch (BackingStoreException bse) {
99 String message = NLS.bind(ContentMessages.content_errorSavingSettings, contentTypeId);
100 IStatus status = new Status(IStatus.ERROR, ContentMessages.OWNER_NAME, 0, message, bse);
101 throw new CoreException(status);
102 }
103 }
104
105 public ContentTypeSettings(ContentType contentType, IScopeContext context) {
106 this.context = context;
107 this.contentType = contentType;
108 }
109
110
113 public void addFileSpec(String fileSpec, int type) throws CoreException {
114 addFileSpec(context, contentType.getId(), fileSpec, type);
115 }
116
117 public ContentType getContentType() {
118 return contentType;
119 }
120
121 public String getDefaultCharset() {
122 return getDefaultProperty(IContentDescription.CHARSET);
123 }
124
125 public String getDefaultProperty(final QualifiedName key) {
126 final Preferences contentTypePrefs = ContentTypeManager.getInstance().getPreferences(context);
127 try {
128 String propertyValue = internalGetDefaultProperty(contentType, contentTypePrefs, key);
129 return "".equals(propertyValue) ? null : propertyValue; } catch (BackingStoreException e) {
131 return null;
132 }
133 }
134
135 public String [] getFileSpecs(int type) {
136 return getFileSpecs(context, contentType.getId(), type);
137 }
138
139 public String getId() {
140 return contentType.getId();
141 }
142
143 public void removeFileSpec(String fileSpec, int type) throws CoreException {
144 removeFileSpec(context, contentType.getId(), fileSpec, type);
145 }
146
147 public void setDefaultCharset(String userCharset) throws CoreException {
148 Preferences contentTypeNode = ContentTypeManager.getInstance().getPreferences(context).node(contentType.getId());
149 ContentType.setPreference(contentTypeNode, ContentType.PREF_DEFAULT_CHARSET, userCharset);
150 try {
151 contentTypeNode.flush();
152 } catch (BackingStoreException bse) {
153 String message = NLS.bind(ContentMessages.content_errorSavingSettings, contentType.getId());
154 IStatus status = new Status(IStatus.ERROR, ContentMessages.OWNER_NAME, 0, message, bse);
155 throw new CoreException(status);
156 }
157 }
158
159 }
160 |
Popular Tags |
Java API By Example, From Geeks To Geeks.