Merge branch 'feature.config-routes' into develop

.gitignore

@@ -1,2 +1,3 @@
 *.iml
 .idea/
+build/

conf/routes.json

@@ -0,0 +1,24 @@
+{
+  "routes": [
+    {
+      "method":"GET",
+      "route":"/helloworld",
+      "implementation":"de.tlongo.roscoe.routes.HelloWorldRoute"
+    },
+    {
+      "method":"POST",
+      "route":"/helloworld",
+      "implementation":"de.tlongo.roscoe.routes.SamplePostRoute"
+    },
+    {
+      "method":"PUT",
+      "route":"/helloworld",
+      "implementation":"de.tlongo.roscoe.routes.SamplePutRoute"
+    },
+    {
+      "method":"DELETE",
+      "route":"/helloworld",
+      "implementation":"de.tlongo.roscoe.routes.SampleDeleteRoute"
+    }
+  ]
+}

src/main/java/de/tlongo/roscoe/core/ConfigManager.java

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+package de.tlongo.roscoe.core;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by tomas on 11.01.15.
+ */
+public class ConfigManager {
+    Logger logger = LoggerFactory.getLogger(ConfigManager.class);
+    String roscoeRoot;
+    File configDir;
+    JsonObject routesConfig;
+
+    public ConfigManager() {
+        roscoeRoot = System.getProperty("roscoe.root");
+        configDir = new File(roscoeRoot + "/conf");
+        try {
+            routesConfig = new JsonParser().parse(new FileReader(configDir + "/routes.json")).getAsJsonObject();
+        } catch (FileNotFoundException e) {
+            logger.error("Could not load routes config {}", configDir + ("/routes.json"));
+            throw new RuntimeException("Could not load routes config.");
+        }
+    }
+
+    public List<RoscoeRoute> getRoutes() {
+        final List<RoscoeRoute> routes = new ArrayList<>();
+        JsonArray jsonRoutesArray = routesConfig.getAsJsonArray("routes");
+
+        logger.debug("Loading Routes from config...");
+        jsonRoutesArray.forEach(route -> {
+            JsonObject jsonRoute = route.getAsJsonObject();
+
+            String routeUrl = jsonRoute.get("route").getAsString();
+            String routeImplementation = jsonRoute.get("implementation").getAsString();
+            String routeMethod = jsonRoute.get("method").getAsString();
+
+            try {
+                Class routeClass = Class.forName(routeImplementation);
+
+                RoscoeRoute roscoeRoute = (RoscoeRoute)routeClass.newInstance();
+                roscoeRoute.setMethod(routeMethod);
+                roscoeRoute.setRouteUrl(routeUrl);
+
+                logger.debug("Loaded Route {}", roscoeRoute);
+
+                routes.add(roscoeRoute);
+            } catch (ClassNotFoundException e) {
+                handleClassLoadingError(routeUrl, routeImplementation);
+            } catch (InstantiationException e) {
+                handleClassLoadingError(routeUrl, routeImplementation);
+            } catch (IllegalAccessException e) {
+                handleClassLoadingError(routeUrl, routeImplementation);
+            }
+
+        });
+        logger.debug("Found {} routes in config", routes.size());
+
+        return routes;
+    }
+
+    private void handleClassLoadingError(String routeName, String routeImplementation) {
+        logger.error("Could not load implementation ({}) for Route {}", routeName, routeImplementation);
+        throw new RuntimeException("Error loading route from config.");
+    }
+}

src/main/java/de/tlongo/roscoe/core/Roscoe.java

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+package de.tlongo.roscoe.core;
+
+/**
+ * Created by tomas on 02.01.15.
+ */
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+
+import static spark.Spark.*;
+public class Roscoe {
+    Logger logger = LoggerFactory.getLogger(Roscoe.class);
+
+    public static void main(String[] args) {
+        new Roscoe().go();
+
+        /**
+         * Start the web app by reading the config and creating the routes.
+         */
+
+        // 1. Determine the framework route and export to a property
+        //   a. if none is specified in the config, determine it by yourself
+        //   b. create and store paths to folders under the fw root
+        //      - templates
+        //      - views
+        //      - assets
+        //
+        // 2. Create the routes
+        //  a. For every route in the config, create a spark-route and register it.
+
+
+
+
+    }
+
+    private void go() {
+        File file = new File(".");
+        logger.debug("Roscoe Root at: ", file.toPath().toAbsolutePath().toString());
+        System.setProperty("roscoe.root", file.toPath().toAbsolutePath().toString());
+
+        ConfigManager configManager = new ConfigManager();
+
+        configManager.getRoutes().forEach(route -> {
+            if (route.getMethod().equals("GET")) {
+                get(route.getRouteUrl(), route);
+            } else if (route.getMethod().equals("POST")) {
+                post(route.getRouteUrl(), route);
+            } else if (route.getMethod().equals("PUT")) {
+                put(route.getRouteUrl(), route);
+            } if (route.getMethod().equals("DELETE")) {
+                delete(route.getRouteUrl(), route);
+            }
+        });
+    }
+}

src/main/java/de/tlongo/roscoe/core/RoscoeRoute.java

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+package de.tlongo.roscoe.core;
+
+import spark.Route;
+
+/**
+ * Created by tomas on 11.01.15.
+ */
+public abstract class RoscoeRoute  implements Route {
+    String routeUrl;
+    String method;
+
+    public void setRouteUrl(String routeUrl) {
+        this.routeUrl = routeUrl;
+    }
+
+    public void setMethod(String method) {
+        this.method = method;
+    }
+
+    public String getRouteUrl() {
+        return routeUrl;
+    }
+
+    public String getMethod() {
+        return method;
+    }
+
+    @Override
+    public String toString() {
+        return "RoscoeRoute{" +
+                "routeUrl='" + routeUrl + '\'' +
+                ", method='" + method + '\'' +
+                '}';
+    }
+}

src/main/java/de/tlongo/roscoe/routes/HelloWorldRoute.java

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+package de.tlongo.roscoe.routes;
+
+import de.tlongo.roscoe.core.RoscoeRoute;
+import spark.Request;
+import spark.Response;
+
+/**
+ * Created by tomas on 11.01.15.
+ */
+public class HelloWorldRoute extends RoscoeRoute {
+
+    @Override
+    public Object handle(Request request, Response response) {
+        return "Congratulations. You succesfully set up Roscoe";
+    }
+}

src/main/java/de/tlongo/roscoe/routes/SampleDeleteRoute.java

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+package de.tlongo.roscoe.routes;
+
+import de.tlongo.roscoe.core.RoscoeRoute;
+import spark.Request;
+import spark.Response;
+
+/**
+ * Created by tomas on 11.01.15.
+ */
+public class SampleDeleteRoute extends RoscoeRoute {
+
+    @Override
+    public Object handle(Request request, Response response) {
+        return "This is a sample delete route.";
+    }
+}

src/main/java/de/tlongo/roscoe/routes/SamplePostRoute.java

@@ -0,0 +1,16 @@
+package de.tlongo.roscoe.routes;
+
+import de.tlongo.roscoe.core.RoscoeRoute;
+import spark.Request;
+import spark.Response;
+
+/**
+ * Created by tomas on 11.01.15.
+ */
+public class SamplePostRoute extends RoscoeRoute {
+
+    @Override
+    public Object handle(Request request, Response response) {
+        return "This is a sample post route.";
+    }
+}

src/main/java/de/tlongo/roscoe/routes/SamplePutRoute.java

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+package de.tlongo.roscoe.routes;
+
+import de.tlongo.roscoe.core.RoscoeRoute;
+import spark.Request;
+import spark.Response;
+
+/**
+ * Created by tomas on 11.01.15.
+ */
+public class SamplePutRoute extends RoscoeRoute {
+
+    @Override
+    public Object handle(Request request, Response response) {
+        return "This is a sample put route.";
+    }
+}