1 files changed, 52 insertions, 0 deletions
diff --git a/src/com/isode/stroke/streamstack/StreamStack.java b/src/com/isode/stroke/streamstack/StreamStack.java
new file mode 100644
index 0000000..f539624
--- /dev/null
+++ b/src/com/isode/stroke/streamstack/StreamStack.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2010 Remko Tron�on
+ * Licensed under the GNU General Public License v3.
+ * See Documentation/Licenses/GPLv3.txt for more information.
+ */
+/*
+ * Copyright (c) 2010, Isode Limited, London, England.
+ * All rights reserved.
+ */
+package com.isode.stroke.streamstack;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class StreamStack {
+
+    public StreamStack(XMPPLayer xmppLayer, LowLayer physicalLayer) {
+        xmppLayer_ = xmppLayer;
+        physicalLayer_ = physicalLayer;
+        physicalLayer_.setParentLayer(xmppLayer_);
+        xmppLayer.setChildLayer(physicalLayer_);
+    }
+
+    public void addLayer(final StreamLayer newLayer) {
+        final LowLayer lowLayer = (layers_.isEmpty() ? physicalLayer_ : layers_.get(layers_.size() - 1));
+
+	xmppLayer_.setChildLayer(newLayer);
+        newLayer.setParentLayer(xmppLayer_);
+        
+        lowLayer.setParentLayer(newLayer);
+        newLayer.setChildLayer(lowLayer);
+
+	layers_.add(newLayer);
+    }
+
+    public XMPPLayer getXMPPLayer() {
+        return xmppLayer_;
+    }
+
+    public Object getLayer(Class layerClass) {
+        for (StreamLayer layer : layers_) {
+            if (layerClass.isAssignableFrom(layer.getClass())) {
+                return layer;
+            }
+        }
+        return null;
+    }
+
+    private XMPPLayer xmppLayer_;
+    private LowLayer physicalLayer_;
+    private List<StreamLayer> layers_ = new ArrayList<StreamLayer>();
+}