Revert "changes to the director"

This reverts commit 54a9cd05bd5edca233d7e589e3abf74752c643e5.
diff --git a/bundles/org.eclipse.equinox.p2.director/OSGI-INF/director.xml b/bundles/org.eclipse.equinox.p2.director/OSGI-INF/director.xml
new file mode 100644
index 0000000..d4b2487
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.director/OSGI-INF/director.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="org.eclipse.equinox.p2.director">
+   <implementation class="org.eclipse.equinox.internal.p2.director.DirectorComponent"/>
+   <service>
+      <provide interface="org.eclipse.equinox.p2.core.spi.IAgentServiceFactory"/>
+   </service>
+   <property name="p2.agent.servicename" type="String" value="org.eclipse.equinox.internal.provisional.p2.director.IDirector"/>
+</scr:component>
\ No newline at end of file
diff --git a/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/DirectorComponent.java b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/DirectorComponent.java
new file mode 100644
index 0000000..08935c4
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/DirectorComponent.java
@@ -0,0 +1,28 @@
+/*******************************************************************************
+ * Copyright (c) 2009-2010 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
+ *     Sonatype, Inc. - ongoing development
+ *******************************************************************************/
+package org.eclipse.equinox.internal.p2.director;
+
+import org.eclipse.equinox.p2.planner.IPlanner;
+
+import org.eclipse.equinox.p2.core.IProvisioningAgent;
+import org.eclipse.equinox.p2.core.spi.IAgentServiceFactory;
+import org.eclipse.equinox.p2.engine.IEngine;
+
+public class DirectorComponent implements IAgentServiceFactory {
+
+	public Object createService(IProvisioningAgent agent) {
+		IEngine engine = (IEngine) agent.getService(IEngine.SERVICE_NAME);
+		IPlanner planner = (IPlanner) agent.getService(IPlanner.SERVICE_NAME);
+		return new SimpleDirector(engine, planner);
+	}
+
+}
diff --git a/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/SimpleDirector.java b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/SimpleDirector.java
new file mode 100644
index 0000000..adf0fd4
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/SimpleDirector.java
@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 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
+ *     Sonatype, Inc. - ongoing development
+ ******************************************************************************/
+package org.eclipse.equinox.internal.p2.director;
+
+import java.util.Collection;
+import org.eclipse.core.runtime.*;
+import org.eclipse.equinox.internal.provisional.p2.director.IDirector;
+import org.eclipse.equinox.internal.provisional.p2.director.PlanExecutionHelper;
+import org.eclipse.equinox.p2.engine.*;
+import org.eclipse.equinox.p2.metadata.IInstallableUnit;
+import org.eclipse.equinox.p2.planner.IPlanner;
+import org.eclipse.equinox.p2.planner.IProfileChangeRequest;
+import org.eclipse.osgi.util.NLS;
+
+public class SimpleDirector implements IDirector {
+	static final int PlanWork = 10;
+	static final int EngineWork = 100;
+	private IEngine engine;
+	private IPlanner planner;
+
+	public SimpleDirector(IEngine engine, IPlanner planner) {
+		if (engine == null)
+			throw new IllegalStateException("Provisioning engine is not registered"); //$NON-NLS-1$
+		this.engine = engine;
+		if (planner == null)
+			throw new IllegalStateException("Unable to find provisioning planner"); //$NON-NLS-1$
+		this.planner = planner;
+	}
+
+	public IStatus revert(IProfile currentProfile, IProfile revertProfile, ProvisioningContext context, IProgressMonitor monitor) {
+		SubMonitor sub = SubMonitor.convert(monitor, Messages.Director_Task_Updating, PlanWork + EngineWork);
+		try {
+			IProvisioningPlan plan = planner.getDiffPlan(currentProfile, revertProfile, sub.newChild(PlanWork));
+			return PlanExecutionHelper.executePlan(plan, engine, context, sub.newChild(EngineWork));
+		} finally {
+			sub.done();
+		}
+	}
+
+	public IStatus provision(IProfileChangeRequest request, ProvisioningContext context, IProgressMonitor monitor) {
+		String taskName = NLS.bind(Messages.Director_Task_Installing, ((ProfileChangeRequest) request).getProfile().getProperty(IProfile.PROP_INSTALL_FOLDER));
+		SubMonitor sub = SubMonitor.convert(monitor, taskName, PlanWork + EngineWork);
+		try {
+			Collection<IInstallableUnit> installRoots = request.getAdditions();
+			// mark the roots as such
+			for (IInstallableUnit root : installRoots) {
+				request.setInstallableUnitProfileProperty(root, IProfile.PROP_PROFILE_ROOT_IU, Boolean.toString(true));
+			}
+			IProvisioningPlan plan = planner.getProvisioningPlan(request, context, sub.newChild(PlanWork));
+			return PlanExecutionHelper.executePlan(plan, engine, context, sub.newChild(EngineWork));
+		} finally {
+			sub.done();
+		}
+	}
+}
diff --git a/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/provisional/p2/director/IDirector.java b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/provisional/p2/director/IDirector.java
new file mode 100644
index 0000000..aaa1373
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/provisional/p2/director/IDirector.java
@@ -0,0 +1,56 @@
+/*******************************************************************************
+ *  Copyright (c) 2007, 2010 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.equinox.internal.provisional.p2.director;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.equinox.p2.engine.IProfile;
+import org.eclipse.equinox.p2.engine.ProvisioningContext;
+import org.eclipse.equinox.p2.planner.IProfileChangeRequest;
+
+/**
+ * Directors are responsible for determining what should be done to a given 
+ * profile to reshape it as requested. That is, given the current state of a 
+ * profile, a description of the desired end state of that profile and metadata 
+ * describing the available IUs, a director produces a list of provisioning 
+ * operations (e.g., install, update or uninstall) to perform on the related IUs. 
+ * Directors are also able to validate profiles and assist in the diagnosis of 
+ * configuration errors. Note that directors may range in complexity from 
+ * very simple (e.g., reading a list of bundles from a static file) to very complex. 
+ */
+public interface IDirector {
+
+	/**
+	 * Service name constant for the director service.
+	 */
+	public static final String SERVICE_NAME = IDirector.class.getName();
+
+	/**
+	 * performs the change request with the given context.
+	 * 
+	 * @param profileChangeRequest The change request
+	 * @param context The provisioning context used for finding resources
+	 * @param monitor a progress monitor, or <code>null</code> if progress
+	 *    reporting is not desired
+	 */
+	public IStatus provision(IProfileChangeRequest profileChangeRequest, ProvisioningContext context, IProgressMonitor monitor);
+
+	/**
+	 * Reverts the profile to a previous state described in the target revertProfile.
+	 * 
+	 * @param profile The profile to revert
+	 * @param revertProfile The profile snapshot state to revert to
+	 * @param context The provisioning context used for finding resources
+	 * @param monitor a progress monitor, or <code>null</code> if progress
+	 *    reporting is not desired
+	 */
+	public IStatus revert(IProfile profile, IProfile revertProfile, ProvisioningContext context, IProgressMonitor monitor);
+}
diff --git a/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/provisional/p2/director/PlanExecutionHelper.java b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/provisional/p2/director/PlanExecutionHelper.java
new file mode 100644
index 0000000..417806a
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/provisional/p2/director/PlanExecutionHelper.java
@@ -0,0 +1,43 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2010 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.equinox.internal.provisional.p2.director;
+
+import java.io.IOException;
+import org.eclipse.core.runtime.*;
+import org.eclipse.equinox.internal.p2.core.helpers.ServiceHelper;
+import org.eclipse.equinox.internal.p2.director.DirectorActivator;
+import org.eclipse.equinox.internal.p2.director.Messages;
+import org.eclipse.equinox.internal.provisional.configurator.Configurator;
+import org.eclipse.equinox.p2.engine.*;
+
+public class PlanExecutionHelper {
+	public static IStatus executePlan(IProvisioningPlan result, IEngine engine, ProvisioningContext context, IProgressMonitor progress) {
+		return executePlan(result, engine, PhaseSetFactory.createDefaultPhaseSet(), context, progress);
+	}
+
+	public static IStatus executePlan(IProvisioningPlan result, IEngine engine, IPhaseSet phaseSet, ProvisioningContext context, IProgressMonitor progress) {
+		if (!result.getStatus().isOK())
+			return result.getStatus();
+
+		if (result.getInstallerPlan() != null) {
+			IStatus installerPlanStatus = ((IEngine) result.getInstallerPlan().getProfile().getProvisioningAgent().getService(IEngine.SERVICE_NAME)).perform(result.getInstallerPlan(), phaseSet, progress);
+			if (!installerPlanStatus.isOK())
+				return installerPlanStatus;
+			Configurator configChanger = (Configurator) ServiceHelper.getService(DirectorActivator.context, Configurator.class.getName());
+			try {
+				configChanger.applyConfiguration();
+			} catch (IOException e) {
+				return new Status(IStatus.ERROR, DirectorActivator.PI_DIRECTOR, Messages.Director_error_applying_configuration, e);
+			}
+		}
+		return engine.perform(result, phaseSet, progress);
+	}
+}