--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.symbian.tools.mtw.core/src/org/symbian/tools/tmw/core/internal/runtimes/RuntimesManagerImpl.java	Mon Aug 09 15:18:34 2010 -0700
@@ -0,0 +1,105 @@
+/**
+ * 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.core.internal.runtimes;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.TreeMap;
+
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.Platform;
+import org.symbian.tools.tmw.core.TMWCore;
+import org.symbian.tools.tmw.core.projects.IMTWProject;
+import org.symbian.tools.tmw.core.runtimes.IMobileWebRuntime;
+import org.symbian.tools.tmw.core.runtimes.IMobileWebRuntimeManager;
+import org.symbian.tools.tmw.core.runtimes.IPackager;
+
+public final class RuntimesManagerImpl implements IMobileWebRuntimeManager {
+    private Map<IMobileWebRuntime, Map<IMobileWebRuntime, IPackager>> packagers;
+    private Map<String, IMobileWebRuntime> runtimes;
+
+    public RuntimesManagerImpl() {
+        collectRuntimes();
+    }
+
+    private void collectPackagers() {
+        packagers = new HashMap<IMobileWebRuntime, Map<IMobileWebRuntime, IPackager>>();
+        IConfigurationElement[] elements = Platform.getExtensionRegistry().getConfigurationElementsFor(
+                TMWCore.PLUGIN_ID, "packagers");
+        for (IConfigurationElement element : elements) {
+            IPackager packager = new LazyPackager(element);
+            Map<IMobileWebRuntime, IPackager> map = packagers.get(packager.getTargetRuntime());
+            if (map == null) {
+                map = new HashMap<IMobileWebRuntime, IPackager>();
+                packagers.put(packager.getTargetRuntime(), map);
+            }
+            map.put(packager.getSourceRuntime(), packager);
+        }
+    }
+
+    private void collectRuntimes() {
+        runtimes = new TreeMap<String, IMobileWebRuntime>();
+        IConfigurationElement[] elements = Platform.getExtensionRegistry().getConfigurationElementsFor(
+                TMWCore.PLUGIN_ID, "runtimes");
+        for (IConfigurationElement element : elements) {
+            final MobileWebRuntime runtime = new MobileWebRuntime(element);
+            runtimes.put(getInternalId(runtime.getId(), runtime.getVersion()), runtime);
+        }
+    }
+
+    public IMobileWebRuntime[] getAllRuntimes() {
+        if (runtimes == null) {
+            collectRuntimes();
+        }
+        final Collection<IMobileWebRuntime> rts = runtimes.values();
+        return rts.toArray(new IMobileWebRuntime[rts.size()]);
+    }
+
+    public IPackager getPackager(IMTWProject project) {
+        return getPackager(project, project.getTargetRuntime());
+    }
+
+    public IPackager getPackager(IMTWProject project, IMobileWebRuntime runtime) {
+        if (packagers == null) {
+            collectPackagers();
+        }
+        final Map<IMobileWebRuntime, IPackager> map = packagers.get(runtime);
+        if (map != null) {
+            return map.get(project.getTargetRuntime());
+        }
+        return null;
+    }
+
+    public IMobileWebRuntime getRuntime(String id, String version) {
+        if (runtimes == null) {
+            collectRuntimes();
+        }
+        final IMobileWebRuntime runtime = runtimes.get(getInternalId(id, version));
+        if (runtime == null) {
+            TMWCore.log(String.format("Runtime %s@%s", id, version), new Exception());
+        }
+        return runtime;
+    }
+
+    private String getInternalId(String id, String version) {
+        return id + ":" + version;
+    }
+
+}