public Object doExecute()

in log/src/main/java/org/apache/karaf/cellar/log/shell/GetLog.java [61:114]
47 lines of code
12 McCabe index (conditional complexity)

    public Object doExecute() throws Exception {
        GetLogCommand command = new GetLogCommand(clusterManager.generateId());
        command.setTimeout(timeout * 1000);

        ShellTable table = new ShellTable();
        table.column(" ");
        table.column("Node");
        table.column("Logger");
        table.column("Level");

        Set<Node> recipientList = new HashSet<Node>();
        if (nodes != null && !nodes.isEmpty()) {
            for (String nodeId : nodes) {
                Node node = clusterManager.findNodeByIdOrAlias(nodeId);
                if (node == null) {
                    System.err.println("Node " + nodeId + " doesn't exist");
                } else {
                    recipientList.add(node);
                }
            }
        } else {
            recipientList = clusterManager.listNodes();
        }

        if (recipientList.size() < 1)
            return null;

        command.setDestination(recipientList);
        command.setLogger(logger);

        Map<Node, GetLogResult> results = executionContext.execute(command);
        if (results == null || results.isEmpty()) {
            System.err.println("No result received within given timeout");
        } else {
            for (Node node : results.keySet()) {
                String local = "";
                if (node.equals(clusterManager.getNode()))
                    local = "x";
                GetLogResult result = results.get(node);
                Map<String, String> loggers = result.getLoggers();
                for (String logger : loggers.keySet()) {
                    String nodeName = node.getAlias();
                    if (nodeName == null) {
                        nodeName = node.getId();
                    }
                    table.addRow().addContent(local, nodeName, logger, loggers.get(logger));
                }
            }
        }

        table.print(System.out);

        return null;
    }