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Diffstat (limited to 'deprecated/org.eclipse.papyrus.infra.gmfdiag.xtext.glue/src/org/eclipse/papyrus/infra/gmfdiag/xtext/glue/editingdomain/UpdateXtextResourceTextCommand.java')
-rw-r--r--deprecated/org.eclipse.papyrus.infra.gmfdiag.xtext.glue/src/org/eclipse/papyrus/infra/gmfdiag/xtext/glue/editingdomain/UpdateXtextResourceTextCommand.java107
1 files changed, 107 insertions, 0 deletions
diff --git a/deprecated/org.eclipse.papyrus.infra.gmfdiag.xtext.glue/src/org/eclipse/papyrus/infra/gmfdiag/xtext/glue/editingdomain/UpdateXtextResourceTextCommand.java b/deprecated/org.eclipse.papyrus.infra.gmfdiag.xtext.glue/src/org/eclipse/papyrus/infra/gmfdiag/xtext/glue/editingdomain/UpdateXtextResourceTextCommand.java
new file mode 100644
index 00000000000..a1f4a622e05
--- /dev/null
+++ b/deprecated/org.eclipse.papyrus.infra.gmfdiag.xtext.glue/src/org/eclipse/papyrus/infra/gmfdiag/xtext/glue/editingdomain/UpdateXtextResourceTextCommand.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2009 itemis AG (http://www.itemis.eu) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+package org.eclipse.papyrus.infra.gmfdiag.xtext.glue.editingdomain;
+
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.emf.common.command.Command;
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.transaction.RecordingCommand;
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+import org.eclipse.emf.transaction.util.TransactionUtil;
+import org.eclipse.gmf.runtime.common.core.command.CommandResult;
+import org.eclipse.gmf.runtime.common.core.command.ICommand;
+import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
+import org.eclipse.xtext.resource.XtextResource;
+
+/**
+ * A Command that deactivates the {@link ChangeAggregatorAdapter} and updates a textual section of an Xtext model in an
+ * Xtext resource. Used to avoid cycles in the change aggregation.
+ *
+ * @author koehnlein
+ */
+public class UpdateXtextResourceTextCommand {
+
+ /**
+ * This element comes from the XText/GMF integration example, and was not originally documented.
+ * @param xtextResource
+ * @param offset
+ * @param length
+ * @param newText
+ * @return Command
+ */
+ public static Command createEMFCommand(final XtextResource xtextResource, final int offset, final int length,
+ final String newText) {
+ final TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(xtextResource);
+ if (editingDomain == null) {
+ return null;
+ }
+ ResourceSet resourceSet = editingDomain.getResourceSet();
+ final ChangeAggregatorAdapter changeAggregator = (ChangeAggregatorAdapter) EcoreUtil.getAdapter(resourceSet
+ .eAdapters(), ChangeAggregatorAdapter.class);
+ return new RecordingCommand(editingDomain, "update xtext resource") {
+ @Override
+ protected void doExecute() {
+ try {
+ if (changeAggregator != null) {
+ changeAggregator.setSuspended(true);
+ }
+ xtextResource.update(offset, length, newText);
+ xtextResource.setModified(true);
+ } finally {
+ if (changeAggregator != null) {
+ changeAggregator.setSuspended(false);
+ }
+ }
+
+ }
+ };
+ }
+
+ /**
+ * This element comes from the XText/GMF integration example, and was not originally documented.
+ * @param xtextResource
+ * @param offset
+ * @param length
+ * @param newText
+ * @return ICommand
+ */
+ public static ICommand createUpdateCommand(final XtextResource xtextResource, final int offset, final int length,
+ final String newText) {
+ final TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(xtextResource);
+ if (editingDomain == null) {
+ return null;
+ }
+ ResourceSet resourceSet = editingDomain.getResourceSet();
+ final ChangeAggregatorAdapter changeAggregator = (ChangeAggregatorAdapter) EcoreUtil.getAdapter(resourceSet
+ .eAdapters(), ChangeAggregatorAdapter.class);
+ return new AbstractTransactionalCommand(editingDomain, "update xtext resource", null) {
+ @Override
+ protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info)
+ throws ExecutionException {
+ try {
+ if (changeAggregator != null) {
+ changeAggregator.setSuspended(true);
+ }
+ xtextResource.update(offset, length, newText);
+ xtextResource.setModified(true);
+ return CommandResult.newOKCommandResult();
+ } catch (Exception exc) {
+ return CommandResult.newErrorCommandResult(exc);
+ } finally {
+ if (changeAggregator != null) {
+ changeAggregator.setSuspended(false);
+ }
+ }
+ }
+ };
+ }
+
+}

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