diff options
Diffstat (limited to 'bundles/org.eclipse.wst.command.env.ui/src/org/eclipse/wst/command/env/ui/widgets/SimpleCommandEngineManager.java')
| -rw-r--r-- | bundles/org.eclipse.wst.command.env.ui/src/org/eclipse/wst/command/env/ui/widgets/SimpleCommandEngineManager.java | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/bundles/org.eclipse.wst.command.env.ui/src/org/eclipse/wst/command/env/ui/widgets/SimpleCommandEngineManager.java b/bundles/org.eclipse.wst.command.env.ui/src/org/eclipse/wst/command/env/ui/widgets/SimpleCommandEngineManager.java deleted file mode 100644 index dff89fcbc..000000000 --- a/bundles/org.eclipse.wst.command.env.ui/src/org/eclipse/wst/command/env/ui/widgets/SimpleCommandEngineManager.java +++ /dev/null @@ -1,232 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004 IBM Corporation 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 - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.wst.command.env.ui.widgets; - -import java.lang.reflect.InvocationTargetException; - -import org.eclipse.core.runtime.IProgressMonitor; -import org.eclipse.jface.operation.IRunnableContext; -import org.eclipse.jface.operation.IRunnableWithProgress; -import org.eclipse.wst.command.env.core.common.Log; -import org.eclipse.wst.command.env.core.common.Status; -import org.eclipse.wst.command.env.core.fragment.CommandFragment; -import org.eclipse.wst.command.env.core.fragment.CommandFragmentEngine; -import org.eclipse.wst.command.env.core.fragment.FragmentListener; -import org.eclipse.wst.command.env.ui.eclipse.EclipseEnvironment; -import org.eclipse.wst.command.env.ui.eclipse.EclipseProgressMonitor; -import org.eclipse.wst.command.internal.env.core.data.DataFlowManager; - - -/** - * This class manages the execution of Commands in a flow of CommandFragments. - * The bulk of this work is done by the CommandFragmentEngine. The main job of - * this class is run the fragments in a particular transactional environment. - * A fragment has a method called doNotRunInTransaction which is used to determine - * if its commands should be run in a transaction or not. If this method returns - * true(ie. not in a transaction) the Commands are wrapped in a IRunnableWithProgress. - * If false( ie. in a transaction ) the Commands are wrapped in a WorkspaceModifyOperation. - * - */ -public class SimpleCommandEngineManager -{ - protected CommandFragmentEngine engine_; - protected DataFlowManager dataManager_; - private EclipseEnvironment environment_; - - private boolean foundStop_; - private boolean doNotRunInTransaction_; - - public SimpleCommandEngineManager( EclipseEnvironment environment, DataFlowManager dataManager ) - { - environment_ = environment; - dataManager_ = dataManager; - } - - /** - * Sets the root fragment. The execution engine will start executing commands - * at the beginning of this root fragment. - * - * @param root the root fragment. - */ - public void setRootFragment( CommandFragment root ) - { - engine_ = new CommandFragmentEngine( root, dataManager_, environment_ ); - - environment_.setCommandManager( engine_ ); - - engine_.setPeekFragmentListener( - new FragmentListener() - { - public boolean notify( CommandFragment fragment ) - { - return peekFragment( fragment ); - } - } ); - - engine_.setNextFragmentListener( - new FragmentListener() - { - public boolean notify( CommandFragment fragment ) - { - return nextFragment( fragment ); - } - } ); - - engine_.setUndoFragmentListener( - new FragmentListener() - { - public boolean notify( CommandFragment fragment ) - { - return undoFragment( fragment ); - } - } ); - } - - /** - * The CommandFragmentEngine calls this method when it is peeking forward - * in the fragments. When peeking forward the command stack state in the - * engine is not changes. - * - * - * @param fragment the fragment that it is peeking at. - * @return Indicates whether peeking should stop or not. - */ - protected boolean peekFragment( CommandFragment fragment ) - { - return true; - } - - /** - * The CommandFragmentEngine calls this method when it is moving forward - * in the fragments. When moving forward the command stack state is saved - * at each fragment is traversed. - * - * @param fragment the fragment that is being traversed. - * @return indicates if the forward traversal should continue. - */ - protected boolean nextFragment( CommandFragment fragment ) - { - if( fragment.doNotRunInTransaction() != doNotRunInTransaction_ ) - { - // The fragment is requesting a different transaction environment than - // the one that we are in so we must stop and change environments. - doNotRunInTransaction_ = fragment.doNotRunInTransaction(); - foundStop_ = false; - } - - return foundStop_; - } - - /** - * This method is called for each fragment when the command engine is unwinding - * its stack during an undo operation. - * - * @param fragment the fragment being undone. - * @return returns true if the undo process should continue. - */ - protected boolean undoFragment( CommandFragment fragment ) - { - return true; - } - - /** - * The method executes the CommandFragment commands in the context provided. - * - * @param context the context - * @return returns the status of executing the commands. - */ - public Status runForwardToNextStop( IRunnableContext context ) - { - IRunnableWithProgress operation = null; - - doNotRunInTransaction_ = false; - - do - { - // We will stop unless we are changing transaction modes. - foundStop_ = true; - - if( doNotRunInTransaction_ ) - { - operation = getNoTransactionOperation(); - } - else - { - operation = getTransactionOperation(); - } - - try - { - if( context == null ) - { - // We don't have a container yet so just run the operation. - operation.run( null ); - } - else - { - // We have a container where this operation can run and have - // its progress displayed. - context.run( false, false, operation ); - } - } - catch( InterruptedException exc ) - { - //TODO should log these exceptions. - exc.printStackTrace(); - } - catch( InvocationTargetException exc ) - { - //TODO should log these exceptions. - exc.printStackTrace(); - } - } - while( !foundStop_ ); - - return engine_.getLastStatus(); - } - - private IRunnableWithProgress getTransactionOperation() - { - IRunnableWithProgress operation = new IRunnableWithProgress() - { - public void run( IProgressMonitor monitor ) - //WorkspaceModifyOperation operation = new WorkspaceModifyOperation() - //{ - // public void execute( IProgressMonitor monitor ) - { - EclipseProgressMonitor eclipseMonitor = (EclipseProgressMonitor)environment_.getProgressMonitor(); - eclipseMonitor.setMonitor( monitor ); - environment_.getLog().log(Log.INFO, "command", 5002, this, "getTransactionOperation", "Start of transaction"); - engine_.moveForwardToNextStop(); - environment_.getLog().log(Log.INFO, "command", 5003, this, "getTransactionOperation", "End of transaction"); - } - }; - - return operation; - } - - private IRunnableWithProgress getNoTransactionOperation() - { - IRunnableWithProgress operation = new IRunnableWithProgress() - { - public void run( IProgressMonitor monitor ) - { - EclipseProgressMonitor eclipseMonitor = (EclipseProgressMonitor)environment_.getProgressMonitor(); - eclipseMonitor.setMonitor( monitor ); - environment_.getLog().log(Log.INFO, "command", 5085, this, "getNoTransactionOperation", "Start of NON transaction"); - engine_.moveForwardToNextStop(); - environment_.getLog().log(Log.INFO, "command", 5086, this, "getNoTransactionOperation", "End of NON transaction"); - } - }; - - return operation; - } -} |