public void actionPerformed(ObjectOutputStream oos, Message msg) throws EventHandleException {
try {
/* get the handler of the ServerPeer */
ServerPeer serverpeer = (ServerPeer) gui.peer();
/* get the message body */
SPLeaveReplacementBody body = (SPLeaveReplacementBody) msg.getBody();
TreeNode treeNode = body.getTreeNode();
treeNode.setContent(body.getContent());
SPGeneralAction.saveData(body.getContent().getData());
treeNode.setStatus(TreeNode.ACTIVE);
treeNode.setRole(TreeNode.MASTER);
treeNode.addCoOwnerList(body.getPhysicalSender());
serverpeer.addListItem(treeNode);
SPGeneralAction.updateRotateRoutingTable(serverpeer, treeNode);
serverpeer.setActivateStablePosition(
new ActivateStablePosition(serverpeer, treeNode, ServerPeer.TIME_TO_STABLE_POSITION));
((ServerGUI) gui).updatePane(treeNode);
} catch (Exception e) {
e.printStackTrace();
throw new EventHandleException(
"Replace a super peer's position failure when it leaves network", e);
}
}