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11 package org.eclipse.pde.internal.ui.editor.site;
12 import java.io.BufferedInputStream  ;
13 import java.io.ByteArrayInputStream ;
14 import java.io.IOException ;
15 import java.io.InputStream ;
16 import java.io.PrintWriter ;
17 import java.io.StringWriter ;
18 import java.io.UnsupportedEncodingException ;
19 import java.util.ArrayList ;
20
21 import org.eclipse.core.resources.IFile;
22 import org.eclipse.core.runtime.CoreException;
23 import org.eclipse.jface.text.IDocument;
24 import org.eclipse.pde.core.IBaseModel;
25 import org.eclipse.pde.core.IEditable;
26 import org.eclipse.pde.core.IModelChangedEvent;
27 import org.eclipse.pde.internal.core.isite.ISiteModel;
28 import org.eclipse.pde.internal.core.site.ExternalSiteModel;
29 import org.eclipse.pde.internal.core.site.WorkspaceSiteModel;
30 import org.eclipse.pde.internal.ui.PDEPlugin;
31 import org.eclipse.pde.internal.ui.editor.PDEFormEditor;
32 import org.eclipse.pde.internal.ui.editor.context.XMLInputContext;
33 import org.eclipse.ui.IEditorInput;
34 import org.eclipse.ui.IFileEditorInput;
35 import org.eclipse.ui.IStorageEditorInput;
36
37 public class SiteInputContext extends XMLInputContext {
38 public static final String CONTEXT_ID = "site-context"; private boolean storageModel=false;
40
44 public SiteInputContext(PDEFormEditor editor, IEditorInput input,
45 boolean primary) {
46 super(editor, input, primary);
47 create();
48 }
49
50 protected IBaseModel createModel(IEditorInput input) {
51 IBaseModel model = null;
52 if (input instanceof IStorageEditorInput) {
53 InputStream is = null;
54 try {
55 if (input instanceof IFileEditorInput) {
56 IFile file = ((IFileEditorInput) input).getFile();
57 is = new BufferedInputStream (file.getContents());
58 model = createWorkspaceModel(file, is, true);
59 } else if (input instanceof IStorageEditorInput) {
60 is = new BufferedInputStream (((IStorageEditorInput) input).getStorage()
61 .getContents());
62 model = createStorageModel(is);
63 }
64 } catch (CoreException e) {
65 PDEPlugin.logException(e);
66 return null;
67 }
68 }
69 return model;
70 }
71
72 private IBaseModel createWorkspaceModel(IFile file, InputStream stream,
73 boolean editable) {
74 WorkspaceSiteModel model = new WorkspaceSiteModel(file);
75 try {
76 model.setEditable(editable);
77 model.load(stream, false);
78 } catch (CoreException e) {
79 }
80 try {
81 stream.close();
82 } catch (IOException e) {
83 PDEPlugin.logException(e);
84 }
85 return model;
86 }
87
88 private IBaseModel createStorageModel(InputStream stream) {
89 ExternalSiteModel model = new ExternalSiteModel();
90 try {
91 model.load(stream, true);
92 } catch (CoreException e) {
93 } finally {
94 try {
95 stream.close();
96 } catch (IOException e1) {
97 }
98 }
99 return model;
100 }
101
102 public void dispose() {
103 ISiteModel model = (ISiteModel) getModel();
104 if (storageModel) {
105 model.dispose();
106 }
107 super.dispose();
108 }
109 protected void flushModel(IDocument doc) {
110 if (!(getModel() instanceof IEditable))
114 return;
115 IEditable editableModel = (IEditable) getModel();
116 if (editableModel.isEditable()==false) return;
117 if (editableModel.isDirty() == false) return;
118 try {
119 StringWriter swriter = new StringWriter ();
120 PrintWriter writer = new PrintWriter (swriter);
121 editableModel.save(writer);
122 writer.flush();
123 swriter.close();
124 doc.set(swriter.toString());
125 } catch (IOException e) {
126 PDEPlugin.logException(e);
127 }
128 }
129
130 protected boolean synchronizeModel(IDocument doc) {
131 ISiteModel model = (ISiteModel) getModel();
132 boolean cleanModel = true;
133 String text = doc.get();
134 try {
135 InputStream stream =
136 new ByteArrayInputStream (text.getBytes("UTF8")); try {
138 model.reload(stream, false);
139 } catch (CoreException e) {
140 cleanModel = false;
141 }
142 try {
143 stream.close();
144 } catch (IOException e) {
145 }
146 } catch (UnsupportedEncodingException e) {
147 PDEPlugin.logException(e);
148 }
149 return cleanModel;
150 }
151
156 public String getId() {
157 return CONTEXT_ID;
158 }
159
165 protected void addTextEditOperation(ArrayList ops, IModelChangedEvent event) {
166 }
167
168
171 protected void reorderInsertEdits(ArrayList ops) {
172 }
173
174 protected String getPartitionName() {
175 return "___site_partition"; }
177 }
178 |
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