--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/dancres/blitz/remote/ProxyFactory.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,65 @@
+package org.dancres.blitz.remote;
+
+import net.jini.id.Uuid;
+
+import net.jini.core.constraint.RemoteMethodControl;
+
+import org.dancres.blitz.lease.SpaceUID;
+
+/**
+   This class instantiates appropriate proxy instances of the given types
+   based on whether we are running in secure mode or not (secure mode is
+   defined to be active when our exported stub reference supports
+   RemoteMethodControl which will be the result of config file containing
+   an appropriate Exporter setup).
+ */
+public class ProxyFactory {
+    private static boolean isSecure(BlitzServer aStub) {
+        return (aStub instanceof RemoteMethodControl);
+    }
+
+    public static BlitzProxy newBlitzProxy(BlitzServer aStub, Uuid aUuid) {
+        if (isSecure(aStub))
+            return new ConstrainableBlitzProxy(aStub, aUuid);
+        else
+            return new BlitzProxy(aStub, aUuid);
+    }
+
+    static AdminProxy newAdminProxy(BlitzServer aStub, Uuid aUuid) {
+        if (isSecure(aStub))
+            return new ConstrainableAdminProxy(aStub, aUuid);
+        else
+            return new AdminProxy(aStub, aUuid);
+    }
+
+    static TxnParticipantProxy newTxnParticipantProxy(BlitzServer aStub,
+                                                      Uuid aUuid) {
+        if (isSecure(aStub))
+            return new ConstrainableTxnParticipantProxy(aStub, aUuid);
+        else
+            return new TxnParticipantProxy(aStub, aUuid);
+    }
+
+    public static LeaseImpl newLeaseImpl(BlitzServer aStub, Uuid aUuid,
+                                         SpaceUID aUID, long anExpiration) {
+        if (isSecure(aStub))
+            return new ConstrainableLeaseImpl(aStub, aUuid, aUID,
+                                              anExpiration);
+        else
+            return new LeaseImpl(aStub, aUuid, aUID, anExpiration);
+    }
+
+    /**
+     * @return a lease with no stub set.  This will be done by the <code>
+     * BlitzProxy</code> on receipt.  This saves the transfer of a stub which
+     * is a significant serialization cost.
+     */
+    public static LeaseImpl newEntryLeaseImpl(BlitzServer aStub,
+        Uuid aUuid, SpaceUID aUID, long anExpiration) {
+        if (isSecure(aStub))
+            return new ConstrainableLeaseImpl(null, null, aUID,
+                anExpiration);
+        else
+            return new LeaseImpl(null, null, aUID, anExpiration);
+    }
+}