+++ /dev/null
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
-package net.sourceforge.phpdt.internal.corext.textmanipulation;
-
-import java.io.BufferedInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.HashMap;
-import java.util.Map;
-
-import net.sourceforge.phpdt.internal.corext.util.IOCloser;
-import net.sourceforge.phpdt.internal.ui.PHPStatusConstants;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.resources.IWorkspaceRunnable;
-import org.eclipse.core.resources.ResourcesPlugin;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.jface.text.Document;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.source.IAnnotationModel;
-import org.eclipse.jface.util.Assert;
-import org.eclipse.ui.part.FileEditorInput;
-import org.eclipse.ui.texteditor.IDocumentProvider;
-
-/* package */class TextBufferFactory {
-
- private IDocumentProvider fDocumentProvider;
-
- private Map fFileValueMap;
-
- private Map fBufferValueMap;
-
- private static class Value {
- TextBuffer buffer;
-
- FileEditorInput input;
-
- IDocument document;
-
- IAnnotationModel annotationModel;
-
- int references;
-
- public Value(TextBuffer b, FileEditorInput i, IDocument d,
- IAnnotationModel m) {
- buffer = b;
- input = i;
- document = d;
- annotationModel = m;
- }
- }
-
- public TextBufferFactory() {
- // XXX http://dev.eclipse.org/bugs/show_bug.cgi?id=5170
- // Need way to map a file to a document without knowing any kind of
- // document provider.
- this(PHPeclipsePlugin.getDefault().getCompilationUnitDocumentProvider());
- }
-
- public TextBufferFactory(IDocumentProvider provider) {
- fDocumentProvider = provider;
- Assert.isNotNull(fDocumentProvider);
- fFileValueMap = new HashMap(5);
- fBufferValueMap = new HashMap(5);
- }
-
- public TextBuffer acquire(IFile file) throws CoreException {
- FileEditorInput input = new FileEditorInput(file);
-
- Value value = (Value) fFileValueMap.get(input);
- if (value != null) {
- value.references++;
- return value.buffer;
- }
-
- fDocumentProvider.connect(input);
- IDocument document = fDocumentProvider.getDocument(input);
- IAnnotationModel annotationModel = fDocumentProvider
- .getAnnotationModel(input);
- annotationModel.connect(document);
- value = new Value(new TextBuffer(document), input, document,
- annotationModel);
- fFileValueMap.put(input, value);
- fBufferValueMap.put(value.buffer, value);
- value.references++;
- return value.buffer;
- }
-
- public void release(TextBuffer buffer) {
- final Value value = (Value) fBufferValueMap.get(buffer);
- if (value == null)
- return;
-
- value.references--;
- if (value.references == 0) {
- buffer.release();
- value.annotationModel.disconnect(value.document);
- fDocumentProvider.disconnect(value.input);
- fFileValueMap.remove(value.input);
- fBufferValueMap.remove(buffer);
- }
- }
-
- public void commitChanges(TextBuffer buffer, boolean force,
- IProgressMonitor pm) throws CoreException {
- final Value value = (Value) fBufferValueMap.get(buffer);
- if (value == null)
- return;
-
- boolean save = force || fDocumentProvider.mustSaveDocument(value.input);
- if (save) {
- IWorkspaceRunnable action = new IWorkspaceRunnable() {
- public void run(IProgressMonitor pm) throws CoreException {
- fDocumentProvider.aboutToChange(value.input);
- fDocumentProvider.saveDocument(pm, value.input,
- value.document, true);
- }
- };
- try {
- ResourcesPlugin.getWorkspace().run(action, pm);
- } finally {
- fDocumentProvider.changed(value.input);
- }
- }
- }
-
- public TextBuffer create(IFile file) throws CoreException {
- FileEditorInput input = new FileEditorInput(file);
- IDocument document = fDocumentProvider.getDocument(input);
- if (document != null) {
- return new TextBuffer(new Document(document.get()));
- } else {
- return createFromFile(file);
- }
- }
-
- private TextBuffer createFromFile(IFile file) throws CoreException {
- IDocument document;
- // Fix for http://dev.eclipse.org/bugs/show_bug.cgi?id=19319
- InputStream stream = file.getContents();
- InputStreamReader in = null;
- try {
- document = new Document();
- in = new InputStreamReader(new BufferedInputStream(stream),
- ResourcesPlugin.getEncoding());
- StringBuffer buffer = new StringBuffer();
- char[] readBuffer = new char[2048];
- int n = in.read(readBuffer);
- while (n > 0) {
- buffer.append(readBuffer, 0, n);
- n = in.read(readBuffer);
- }
- document.set(buffer.toString());
- return new TextBuffer(document);
- } catch (IOException x) {
- IStatus s = new Status(IStatus.ERROR, PHPeclipsePlugin
- .getPluginId(), PHPStatusConstants.INTERNAL_ERROR, x
- .getMessage(), x);
- throw new CoreException(s);
- } finally {
- IOCloser.perform(in, stream);
- }
- }
-
- public TextBuffer create(String content) {
- return new TextBuffer(new Document(content));
- }
-
- public void save(TextBuffer buffer, IProgressMonitor pm)
- throws CoreException {
- Value value = (Value) fBufferValueMap.get(buffer);
- if (value == null)
- throwNotManaged();
- fDocumentProvider.saveDocument(pm, value.input, value.document, true);
- }
-
- public void aboutToChange(TextBuffer buffer) throws CoreException {
- Value value = (Value) fBufferValueMap.get(buffer);
- if (value == null)
- throwNotManaged();
- fDocumentProvider.aboutToChange(value.input);
- }
-
- public void changed(TextBuffer buffer) throws CoreException {
- Value value = (Value) fBufferValueMap.get(buffer);
- if (value == null)
- throwNotManaged();
- fDocumentProvider.changed(value.input);
- }
-
- private void throwNotManaged() throws CoreException {
- IStatus s = new Status(IStatus.ERROR, PHPeclipsePlugin.getPluginId(),
- PHPStatusConstants.INTERNAL_ERROR, TextManipulationMessages
- .getString("TextBufferFactory.bufferNotManaged"), null); //$NON-NLS-1$
- throw new CoreException(s);
- }
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff