Examples with ITextFileBufferManager org.eclipse.core.filebuffers.ITextFileBufferManager used on opensource projects

Example 71 with ITextFileBufferManager

use of org.eclipse.core.filebuffers.ITextFileBufferManager in project webtools.sourceediting by eclipse.

the class TestModelsFromFiles method getTextBuffer.

private ITextFileBuffer getTextBuffer(IFile file) throws CoreException {
    ITextFileBufferManager fileBufferManager = FileBuffers.getTextFileBufferManager();
    IPath fileIPath = file.getFullPath();
    IPath normalizedPath = FileBuffers.normalizeLocation(fileIPath);
    fileBufferManager.connect(normalizedPath, null);
    ITextFileBuffer buffer = fileBufferManager.getTextFileBuffer(normalizedPath);
    return buffer;
}

Example 72 with ITextFileBufferManager

use of org.eclipse.core.filebuffers.ITextFileBufferManager in project webtools.sourceediting by eclipse.

the class FileBufferModelManager method disconnect.

/**
 * Deregisters "interest" in a document, or rather the file buffer that
 * backs it. Intentionally used to alter the reference count of the file
 * buffer so that it knows it can safely be disposed of.
 */
public boolean disconnect(IDocument document) {
    if (document == null) {
        // $NON-NLS-1$
        Exception iae = new IllegalArgumentException("can not disconnect() without a document");
        Logger.logException(iae);
        return false;
    }
    DocumentInfo info = (DocumentInfo) fDocumentMap.get(document);
    if (info == null)
        return false;
    ITextFileBufferManager bufferManager = FileBuffers.getTextFileBufferManager();
    boolean isOK = true;
    try {
        if (info.buffer.getLocation() != null) {
            bufferManager.disconnect(info.buffer.getLocation(), info.locationKind, null);
        } else if (info.buffer.getFileStore() != null) {
            bufferManager.disconnectFileStore(info.buffer.getFileStore(), null);
        }
    } catch (CoreException e) {
        Logger.logException(e);
        isOK = false;
    }
    return isOK;
}

Example 73 with ITextFileBufferManager

use of org.eclipse.core.filebuffers.ITextFileBufferManager in project webtools.sourceediting by eclipse.

the class FileBufferModelManager method releaseModel.

public void releaseModel(IDocument document) {
    if (document == null) {
        // $NON-NLS-1$
        Exception iae = new IllegalArgumentException("can not release a model without a document reference");
        Logger.logException(iae);
        return;
    }
    DocumentInfo info = (DocumentInfo) fDocumentMap.get(document);
    if (info != null) {
        if (Logger.DEBUG_FILEBUFFERMODELMANAGEMENT) {
            // $NON-NLS-1$ //$NON-NLS-2$
            Logger.log(Logger.INFO, "FileBufferModelManager noticed full release of model for " + locationString(info.buffer) + " " + info.buffer.getDocument());
        }
        info.model = null;
        info.modelReferenceCount--;
        if (info.selfConnected) {
            if (Logger.DEBUG_FILEBUFFERMODELMANAGEMENT) {
                // $NON-NLS-1$ //$NON-NLS-2$
                Logger.log(Logger.INFO, "FileBufferModelManager disconnecting from " + locationString(info.buffer) + " " + info.buffer.getDocument());
            }
            ITextFileBufferManager bufferManager = FileBuffers.getTextFileBufferManager();
            try {
                if (info.buffer.getLocation() != null) {
                    bufferManager.disconnect(info.buffer.getLocation(), info.locationKind, null);
                } else if (info.buffer.getFileStore() != null) {
                    bufferManager.disconnectFileStore(info.buffer.getFileStore(), null);
                }
            } catch (CoreException e) {
                // $NON-NLS-1$
                Logger.logException("Error releasing model for " + locationString(info.buffer), e);
            }
        }
        // [265899]
        // In some scenarios, a model can be held onto after the editor has been disposed even if the lifecycle is
        // maintained properly (e.g., an editor being closed before a DirtyRegionProcessor has a chance to complete). Because of this,
        // the manager cannot be reliant upon the FileBufferMapper having the sole responsibility of the fDocumentMap cleanup
        checkReferenceCounts(info, document);
    }
}

Example 74 with ITextFileBufferManager

use of org.eclipse.core.filebuffers.ITextFileBufferManager in project webtools.sourceediting by eclipse.

the class FileBufferModelManager method getModel.

IStructuredModel getModel(File file) {
    if (file == null) {
        // $NON-NLS-1$
        Exception iae = new IllegalArgumentException("can not get/create a model without a java.io.File");
        Logger.logException(iae);
        return null;
    }
    IStructuredModel model = null;
    ITextFileBufferManager bufferManager = FileBuffers.getTextFileBufferManager();
    try {
        IPath location = new Path(file.getAbsolutePath());
        if (Logger.DEBUG_FILEBUFFERMODELMANAGEMENT) {
            // $NON-NLS-1$
            Logger.log(Logger.INFO, "FileBufferModelManager connecting to File " + location);
        }
        bufferManager.connect(location, LocationKind.LOCATION, getProgressMonitor());
        ITextFileBuffer buffer = bufferManager.getTextFileBuffer(location, LocationKind.LOCATION);
        if (buffer != null) {
            DocumentInfo info = (DocumentInfo) fDocumentMap.get(buffer.getDocument());
            if (info != null) {
                /*
					 * Note: "info" being null at this point is a slight
					 * error.
					 * 
					 * The connect call from above (or at some time earlier in
					 * the session) would have notified the FileBufferMapper
					 * of the creation of the corresponding text buffer and
					 * created the DocumentInfo object for
					 * IStructuredDocuments.
					 */
                info.locationKind = LocationKind.LOCATION;
                info.selfConnected = true;
            }
            /*
				 * Check the document type. Although returning null for
				 * unknown documents would be fair, try to get a model if
				 * the document is at least a valid type.
				 */
            IDocument bufferDocument = buffer.getDocument();
            if (bufferDocument instanceof IStructuredDocument) {
                model = getModel((IStructuredDocument) bufferDocument);
            } else {
                /*
					 * 190768 - Quick diff marks do not disappear in the
					 * vertical ruler of JavaScript editor and
					 * 
					 * 193805 - Changes are not thrown away when close
					 * with no save for files with no structured model
					 * associated with them (text files, javascript files,
					 * etc) in web project
					 */
                bufferManager.disconnect(location, LocationKind.IFILE, getProgressMonitor());
            }
        }
    } catch (CoreException e) {
        // $NON-NLS-1$
        Logger.logException("Error getting model for " + file.getPath(), e);
    }
    return model;
}

Example 75 with ITextFileBufferManager

use of org.eclipse.core.filebuffers.ITextFileBufferManager in project eclipse.jdt.ls by eclipse.

the class JsonRpcHelpers method toDocument.

/**
 * Returns an {@link IDocument} for the given {@link IFile}.
 *
 * @param file an {@link IFile}
 * @return a document with the contents of the file,
 * or <code>null</code> if the file can not be opened.
 */
public static IDocument toDocument(IFile file) {
    if (file != null && file.isAccessible()) {
        IPath path = file.getFullPath();
        ITextFileBufferManager fileBufferManager = FileBuffers.getTextFileBufferManager();
        LocationKind kind = LocationKind.IFILE;
        try {
            fileBufferManager.connect(path, kind, new NullProgressMonitor());
            ITextFileBuffer fileBuffer = fileBufferManager.getTextFileBuffer(path, kind);
            if (fileBuffer != null) {
                return fileBuffer.getDocument();
            }
        } catch (CoreException e) {
            JavaLanguageServerPlugin.logException("Failed to convert " + file + "  to an IDocument", e);
        } finally {
            try {
                fileBufferManager.disconnect(path, kind, new NullProgressMonitor());
            } catch (CoreException slurp) {
            // Don't care
            }
        }
    }
    return null;
}