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/*
* Copyright (c) 2010 Remko Tronçon
* 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>();
}
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