InsightControlFlowTikz.tex

\begin{figure*}[!htb] 
    \centering
    \tikzstyle{decision} = [diamond, draw, fill=blue!20,
        text width=4.5em, text badly centered, node distance=2.5cm, inner sep=0pt]
    \tikzstyle{instance} = [circle, draw, fill=violet!20, 
        text width=6em, text centered, rounded corners, minimum height=4em]   
    \tikzstyle{dwblock} = [rectangle, draw, fill=green!20,
        text width=5em, text centered, rounded corners, minimum height=4em]
    \tikzstyle{line} = [draw, very thick, color=black!50, -latex']
    \tikzstyle{linesansserif} = [draw, very thick, color=black!50, latex']
    \tikzstyle{factoryblock} = [rectangle, draw, fill=blue!20, 
        text width=6em, text centered, rounded corners, minimum height=4em]
    \tikzstyle{aggregator} = [cylinder, 
        draw = violet, 
        text = black,
        cylinder uses custom fill, 
        cylinder body fill = magenta!10, 
        cylinder end fill = magenta!40,
        aspect = 0.2, 
        shape border rotate = 90]
    \tikzstyle{coord} = [coordinate, on chain, on grid, node distance=2cm]
    \begin{tikzpicture}[scale=4, node distance = 3cm, auto]
        % Place nodes
        \node [instance] (CC) {Consent Contract};
        \node [factoryblock, left of=CC, node distance=4cm] (CCF) {Contract Factory};
        \node [dwblock, below of=CC] (identify) {Event Detection};
        \node [dwblock, below of=identify] (evaluate) {Query Evaluation};
        \node [dwblock, below of=evaluate, node distance=2.5cm] (permissions) {Permission Resolution};
        \node [dwblock, below of=permissions, node distance=2.5cm] (data) {Persistence Layer Access};
        \node [aggregator, right of=evaluate, node distance=6cm] (AS) {Aggregation Service};
        \node [coord, left of=data]  (asdf)  {}; \cmark{4}
        % Draw edges
        \path [line] (CC) -- node {requestForData event} (identify);
        \path [line] (identify) -- node {CID resolution and query fetch} (evaluate);
        \path [line] (evaluate) -- node {AST processing} (permissions);
        \path [line] (permissions) -- node {read only access} (data);
        \path [linesansserif] (data) -- (asdf);
        \path [line] (asdf) |- node [near start,left] {query results} (evaluate);
        \path [line,dashed] (CCF) -- node {deploy} (CC);
        \path [line,dashed] (evaluate) -- node [text width=3cm] {signed insights} (AS);
    \end{tikzpicture}
    \caption{Control Flow from requesting to receiving an insight from the data wallet network.}
    \label{fig:InsiteControlFlow}
  \end{figure*}