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1
11 package org.eclipse.jdt.internal.corext.refactoring.nls.changes;
12
13 import java.io.ByteArrayInputStream  ;
14 import java.io.IOException ;
15 import java.io.InputStream ;
16 import java.io.UnsupportedEncodingException ;
17 import java.net.URI ;
18
19 import org.eclipse.core.filesystem.EFS;
20 import org.eclipse.core.filesystem.IFileInfo;
21
22 import org.eclipse.core.runtime.Assert;
23 import org.eclipse.core.runtime.CoreException;
24 import org.eclipse.core.runtime.IPath;
25 import org.eclipse.core.runtime.IProgressMonitor;
26 import org.eclipse.core.runtime.OperationCanceledException;
27 import org.eclipse.core.runtime.Platform;
28 import org.eclipse.core.runtime.SubProgressMonitor;
29 import org.eclipse.core.runtime.content.IContentType;
30
31 import org.eclipse.core.resources.IFile;
32 import org.eclipse.core.resources.IResource;
33 import org.eclipse.core.resources.ResourcesPlugin;
34
35 import org.eclipse.ltk.core.refactoring.Change;
36 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
37
38 import org.eclipse.jdt.core.IJavaModelStatusConstants;
39 import org.eclipse.jdt.core.JavaModelException;
40
41 import org.eclipse.jdt.internal.corext.refactoring.base.JDTChange;
42 import org.eclipse.jdt.internal.corext.util.Messages;
43
44 public class CreateFileChange extends JDTChange {
45
46 private String fChangeName;
47
48 private IPath fPath;
49 private String fSource;
50 private String fEncoding;
51 private boolean fExplicitEncoding;
52 private long fStampToRestore;
53
54 public CreateFileChange(IPath path, String source, String encoding) {
55 this(path, source, encoding, IResource.NULL_STAMP);
56 }
57
58 public CreateFileChange(IPath path, String source, String encoding, long stampToRestore) {
59 Assert.isNotNull(path, "path"); Assert.isNotNull(source, "source"); fPath= path;
62 fSource= source;
63 fEncoding= encoding;
64 fExplicitEncoding= fEncoding != null;
65 fStampToRestore= stampToRestore;
66 }
67
68
80
81 protected void setEncoding(String encoding, boolean explicit) {
82 Assert.isNotNull(encoding, "encoding"); fEncoding= encoding;
84 fExplicitEncoding= explicit;
85 }
86
87 public String getName() {
88 if (fChangeName == null)
89 return Messages.format(NLSChangesMessages.createFile_Create_file, fPath.toOSString());
90 else
91 return fChangeName;
92 }
93
94 public void setName(String name) {
95 fChangeName= name;
96 }
97
98 protected void setSource(String source) {
99 fSource= source;
100 }
101
102 protected String getSource() {
103 return fSource;
104 }
105
106 protected void setPath(IPath path) {
107 fPath= path;
108 }
109
110 protected IPath getPath() {
111 return fPath;
112 }
113
114 public Object getModifiedElement() {
115 return ResourcesPlugin.getWorkspace().getRoot().getFile(fPath);
116 }
117
118 public RefactoringStatus isValid(IProgressMonitor pm) throws CoreException {
119 RefactoringStatus result= new RefactoringStatus();
120 IFile file= ResourcesPlugin.getWorkspace().getRoot().getFile(fPath);
121
122 URI location= file.getLocationURI();
123 if (location == null) {
124 result.addFatalError(Messages.format(
125 NLSChangesMessages.CreateFileChange_error_unknownLocation,
126 file.getFullPath().toString()));
127 return result;
128 }
129
130 IFileInfo jFile= EFS.getStore(location).fetchInfo();
131 if (jFile.exists()) {
132 result.addFatalError(Messages.format(
133 NLSChangesMessages.CreateFileChange_error_exists,
134 file.getFullPath().toString()));
135 return result;
136 }
137 return result;
138 }
139
140 public Change perform(IProgressMonitor pm) throws CoreException, OperationCanceledException {
141
142 InputStream is= null;
143 try {
144 pm.beginTask(NLSChangesMessages.createFile_creating_resource, 3);
145
146 initializeEncoding();
147 IFile file= getOldFile(new SubProgressMonitor(pm, 1));
148
156 try {
157 is= new ByteArrayInputStream (fSource.getBytes(fEncoding));
158 file.create(is, false, new SubProgressMonitor(pm, 1));
159 if (fStampToRestore != IResource.NULL_STAMP) {
160 file.revertModificationStamp(fStampToRestore);
161 }
162 if (fExplicitEncoding) {
163 file.setCharset(fEncoding, new SubProgressMonitor(pm, 1));
164 } else {
165 pm.worked(1);
166 }
167 return new DeleteFileChange(file);
168 } catch (UnsupportedEncodingException e) {
169 throw new JavaModelException(e, IJavaModelStatusConstants.IO_EXCEPTION);
170 }
171 } finally {
172 try {
173 if (is != null)
174 is.close();
175 } catch (IOException ioe) {
176 throw new JavaModelException(ioe, IJavaModelStatusConstants.IO_EXCEPTION);
177 } finally {
178 pm.done();
179 }
180 }
181 }
182
183 protected IFile getOldFile(IProgressMonitor pm) throws OperationCanceledException {
184 pm.beginTask("", 1); try {
186 return ResourcesPlugin.getWorkspace().getRoot().getFile(fPath);
187 } finally {
188 pm.done();
189 }
190 }
191
192 private void initializeEncoding() {
193 if (fEncoding == null) {
194 fExplicitEncoding= false;
195 IFile file= ResourcesPlugin.getWorkspace().getRoot().getFile(fPath);
196 if (file != null) {
197 try {
198 if (file.exists()) {
199 fEncoding= file.getCharset(false);
200 if (fEncoding == null) {
201 fEncoding= file.getCharset(true);
202 } else {
203 fExplicitEncoding= true;
204 }
205 } else {
206 IContentType contentType= Platform.getContentTypeManager().findContentTypeFor(file.getName());
207 if (contentType != null)
208 fEncoding= contentType.getDefaultCharset();
209 if (fEncoding == null)
210 fEncoding= file.getCharset(true);
211 }
212 } catch (CoreException e) {
213 fEncoding= ResourcesPlugin.getEncoding();
214 fExplicitEncoding= true;
215 }
216 } else {
217 fEncoding= ResourcesPlugin.getEncoding();
218 fExplicitEncoding= true;
219 }
220 }
221 Assert.isNotNull(fEncoding);
222 }
223 }
224 |
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