--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.symbian.tools.mtw.ui/src/org/symbian/tools/tmw/ui/ProjectMemo.java	Mon Aug 09 15:18:34 2010 -0700
@@ -0,0 +1,140 @@
+/**
+ * Copyright (c) 2010 Symbian Foundation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of the License "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Symbian Foundation - initial contribution.
+ * Contributors:
+ * Description:
+ * Overview:
+ * Details:
+ * Platforms/Drives/Compatibility:
+ * Assumptions/Requirement/Pre-requisites:
+ * Failures and causes:
+ */
+package org.symbian.tools.tmw.ui;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.ui.IMemento;
+import org.eclipse.ui.XMLMemento;
+import org.symbian.tools.tmw.core.projects.IMTWProject;
+import org.symbian.tools.tmw.ui.deployment.IDeploymentTarget;
+import org.symbian.tools.tmw.ui.deployment.IDeploymentTargetType;
+
+public class ProjectMemo {
+    private static final String TARGET_TYPE = "typeId";
+    private static final String TARGET = "targetId";
+    private static final String TARGET_CONFIGURATION = "target";
+    private static final String MEMO_TYPE = "deployment";
+
+    private final IMTWProject project;
+    private XMLMemento memento;
+
+    public ProjectMemo(IMTWProject project) {
+        this.project = project;
+    }
+
+    public synchronized void setDeploymentTarget(String providerId, IDeploymentTarget target) {
+        try {
+            checkMemento();
+            memento.putString(TARGET_TYPE, providerId);
+            memento.putString(TARGET, target.getId());
+            IMemento child = null;
+            IMemento[] children = memento.getChildren(TARGET_CONFIGURATION);
+            for (IMemento memento : children) {
+                if (providerId.equals(memento.getString(TARGET_TYPE))
+                        && target.getId().equals(memento.getString(TARGET))) {
+                    child = memento;
+                }
+            }
+            if (child == null) {
+                child = memento.createChild(TARGET_CONFIGURATION);
+                child.putString(TARGET_TYPE, providerId);
+                child.putString(TARGET, target.getId());
+            }
+            target.save(child);
+            saveMemento();
+        } catch (CoreException e) {
+            TMWCoreUI.log(e);
+        } catch (IOException e) {
+            TMWCoreUI.log(e);
+        }
+    }
+
+    private void saveMemento() throws IOException, CoreException {
+        ByteArrayOutputStream os = new ByteArrayOutputStream();
+        final Writer writer = new OutputStreamWriter(os);
+        memento.save(writer);
+        writer.close();
+        final InputStream stream = new ByteArrayInputStream(os.toByteArray());
+        IFile file = getMemoFile();
+        if (file.exists()) {
+            file.setContents(stream, IFile.KEEP_HISTORY, null);
+        } else {
+            file.create(stream, false, null);
+        }
+    }
+
+    private IFile getMemoFile() {
+        return project.getProject().getFile(new Path(".settings").append(TMWCoreUI.PLUGIN_ID).addFileExtension("xml"));
+    }
+
+    private void checkMemento() throws CoreException, IOException {
+        IFile memoFile = getMemoFile();
+        if (memoFile.exists()) {
+            memento = XMLMemento.createReadRoot(new InputStreamReader(memoFile.getContents(), memoFile.getCharset()));
+        } else {
+            memento = XMLMemento.createWriteRoot(MEMO_TYPE);
+        }
+    }
+
+    public IDeploymentTarget getPreviousDeploymentTarget() {
+        try {
+            checkMemento();
+            String type = memento.getString(TARGET_TYPE);
+            if (type != null) {
+                final IDeploymentTargetType provider = TMWCoreUI.getDefault().getDeploymentTypesRegistry()
+                        .getType(type);
+                if (provider != null) {
+                    IDeploymentTarget target = provider.findTarget(project, memento.getString(TARGET));
+                    if (target != null) {
+                        return target;
+                    }
+                }
+            }
+        } catch (CoreException e) {
+            TMWCoreUI.log(e);
+        } catch (IOException e) {
+            TMWCoreUI.log(e);
+        }
+        return null;
+    }
+
+    public IMemento getMemo(String targetType, IDeploymentTarget target) {
+        if (memento != null) {
+            IMemento[] children = memento.getChildren(TARGET_CONFIGURATION);
+            for (IMemento memento : children) {
+                if (targetType.equals(memento.getString(TARGET_TYPE))
+                        && target.getId().equals(memento.getString(TARGET))) {
+                    return memento;
+                }
+            }
+        }
+        return null;
+    }
+
+}