public void handle()

in core/java8/proxy/src/main/java/org/apache/openwhisk/runtime/java/action/Proxy.java [83:128]
33 lines of code
6 McCabe index (conditional complexity)

        public void handle(HttpExchange t) throws IOException {
            if (loader != null) {
                String errorMessage = "Cannot initialize the action more than once.";
                System.err.println(errorMessage);
                Proxy.writeError(t, errorMessage);
                return;
            }

            try {
                InputStream is = t.getRequestBody();
                JsonParser parser = new JsonParser();
                JsonElement ie = parser.parse(new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8)));
                JsonObject inputObject = ie.getAsJsonObject();

                if (inputObject.has("value")) {
                    JsonObject message = inputObject.getAsJsonObject("value");
                    if (message.has("main") && message.has("code")) {
                        String mainClass = message.getAsJsonPrimitive("main").getAsString();
                        String base64Jar = message.getAsJsonPrimitive("code").getAsString();

                        // FIXME: this is obviously not very useful. The idea is that we
                        // will implement/use a streaming parser for the incoming JSON object so that we
                        // can stream the contents of the jar straight to a file.
                        InputStream jarIs = new ByteArrayInputStream(base64Jar.getBytes(StandardCharsets.UTF_8));

                        // Save the bytes to a file.
                        Path jarPath = JarLoader.saveBase64EncodedFile(jarIs);

                        // Start up the custom classloader. This also checks that the
                        // main method exists.
                        loader = new JarLoader(jarPath, mainClass);

                        Proxy.writeResponse(t, 200, "OK");
                        return;
                    }
                }

                Proxy.writeError(t, "Missing main/no code to execute.");
                return;
            } catch (Exception e) {
                e.printStackTrace(System.err);
                writeLogMarkers();
                Proxy.writeError(t, "An error has occurred (see logs for details): " + e);
                return;
            }
        }