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package org.netbeans.modules.gsf.api; |
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import java.io.IOException; |
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import java.util.logging.Level; |
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import java.util.logging.Logger; |
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import javax.swing.JEditorPane; |
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import javax.swing.text.Document; |
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import javax.swing.text.JTextComponent; |
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import org.openide.ErrorManager; |
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import org.openide.cookies.EditorCookie; |
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import org.openide.cookies.InstanceCookie; |
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import org.openide.cookies.LineCookie; |
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import org.openide.filesystems.FileObject; |
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import org.openide.filesystems.FileUtil; |
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import org.openide.loaders.DataObject; |
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import org.openide.loaders.DataObjectNotFoundException; |
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import org.openide.text.Line; |
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import org.openide.util.Exceptions; |
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import org.openide.util.Lookup; |
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/** |
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* Provides the FileObject from a Document. Normally this means getting the info |
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* from the Document's stream, but other implementations might exist. |
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* |
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* @author Emilian Bold |
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*/ |
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public abstract class DataLoadersBridge { |
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private static Logger log = Logger.getLogger(DataLoadersBridge.class.getName()); |
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public abstract Object createInstance(FileObject file); |
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public abstract Document getDocument(FileObject fo); |
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/** |
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* @return Text of the given line in the document |
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*/ |
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public abstract String getLine(Document doc, int lineNumber); |
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public abstract JEditorPane[] getOpenedPanes(FileObject fo); |
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public abstract FileObject getFileObject(Document doc); |
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public FileObject getFileObject(JTextComponent text) { |
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return getFileObject(text.getDocument()); |
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} |
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//--- |
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private static DataLoadersBridge DEFAULT_ADAPTOR = new DataLoadersBridge() { |
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@Override |
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public FileObject getFileObject(Document doc) { |
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Object o = doc.getProperty(Document.StreamDescriptionProperty); |
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if (o instanceof DataObject) { |
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return ((DataObject) o).getPrimaryFile(); |
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} else if (o instanceof FileObject) { |
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return (FileObject) o; |
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} else if (o != null) { |
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log.warning("Unable to return FileObject for Document " + doc + ". StreamDescriptionProperty points to non-DataLoader, non-FileObject instace: " + o); |
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} |
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return null; |
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} |
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@Override |
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public Document getDocument(FileObject file) { |
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try { |
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DataObject d = DataObject.find(file); |
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EditorCookie ec = (EditorCookie) d.getCookie(EditorCookie.class); |
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if (ec == null) { |
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return null; |
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} |
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return ec.getDocument(); |
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} catch (IOException e) { |
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Logger.global.log(Level.INFO, "SemanticHighlighter: Cannot find DataObject for file: " + FileUtil.getFileDisplayName(file), e); |
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return null; |
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} |
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} |
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@Override |
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public JEditorPane[] getOpenedPanes(FileObject fo) { |
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DataObject dobj; |
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try { |
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dobj = DataObject.find(fo); |
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} catch (DataObjectNotFoundException ex) { |
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return new JEditorPane[0]; |
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} |
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EditorCookie editorCookie = dobj.getCookie(EditorCookie.class); |
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if (editorCookie == null) { |
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return new JEditorPane[0]; |
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} |
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return editorCookie.getOpenedPanes(); |
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} |
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@Override |
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public Object createInstance(FileObject file) { |
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assert file.getExt().equals("instance"); // NOI18N |
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// Construct the service lazily using the instance cookie on the provided data object |
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try { |
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DataObject dobj = DataObject.find(file); |
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InstanceCookie ic = dobj.getCookie(InstanceCookie.class); |
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return ic.instanceCreate(); |
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} catch (ClassNotFoundException e) { |
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ErrorManager.getDefault().notify(e); |
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} catch (DataObjectNotFoundException e) { |
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ErrorManager.getDefault().notify(e); |
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} catch (IOException e) { |
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ErrorManager.getDefault().notify(e); |
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} |
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return null; |
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} |
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@Override |
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public FileObject getPrimaryFile(FileObject fileObject) { |
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try { |
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DataObject dobj = DataObject.find(fileObject); |
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if (dobj != null) { |
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return dobj.getPrimaryFile(); |
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} |
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return null; |
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} catch (DataObjectNotFoundException ex) { |
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Exceptions.printStackTrace(ex); |
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return null; |
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} |
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} |
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@Override |
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public String getLine(Document doc, int lineNumber) { |
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DataObject dObj = (DataObject) doc.getProperty(doc.StreamDescriptionProperty); |
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LineCookie lc = dObj.getCookie(LineCookie.class); |
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Line line = lc.getLineSet().getCurrent(lineNumber); |
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return line.getText(); |
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} |
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}; |
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private static DataLoadersBridge instance = null; |
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public synchronized static DataLoadersBridge getDefault() { |
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if (instance == null) { |
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instance = Lookup.getDefault().lookup(DataLoadersBridge.class); |
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//TODO: listen on the lookup ? Seems too much |
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if (instance == null) { |
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instance = DEFAULT_ADAPTOR; |
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} |
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} |
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return instance; |
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} |
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public abstract FileObject getPrimaryFile(FileObject fileObject); |
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} |