Mage.Stats WS module for getting server stats in json format

Mage.Stats/src/main/java/com/xmage/ws/rest/XMageStatsAPIApplication.java

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+package com.xmage.ws.rest;
+
+import javax.ws.rs.ApplicationPath;
+import javax.ws.rs.core.Application;
+
+@ApplicationPath("/api")
+public class XMageStatsAPIApplication extends Application {
+}

Mage.Stats/src/main/java/com/xmage/ws/rest/services/XMageStatsService.java

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+package com.xmage.ws.rest.services;
+
+import com.xmage.ws.resource.XMageStatsResource;
+import com.xmage.ws.resource.Resource;
+import com.xmage.ws.rest.services.base.AbstractService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.Response;
+
+/**
+ *
+ * @author noxx
+ */
+@Path("/xmage/stats")
+@Produces("application/json;charset=utf-8")
+public class XMageStatsService extends AbstractService {
+
+    static final Logger logger = LoggerFactory.getLogger(XMageStatsService.class);
+
+    @GET
+    @Path("/getAll")
+    public Response getAllStats() {
+        logger.trace("getAllStats");
+        Resource resource = new XMageStatsResource().getAll();
+
+        return responseWithError(resource);
+    }
+
+
+}

Mage.Stats/src/main/java/com/xmage/ws/rest/services/base/AbstractService.java

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+package com.xmage.ws.rest.services.base;
+
+import com.xmage.ws.json.ResponseBuilder;
+import com.xmage.ws.model.DomainErrors;
+import com.xmage.ws.resource.Resource;
+import net.minidev.json.JSONObject;
+import org.apache.sling.commons.json.JSONException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.core.Response;
+
+/**
+ * General approach for ws requests/responses.
+ *
+ * Consists of building response object, verifying response, prettifying, execution time calculating.
+ *
+ * @author noxx
+ */
+public abstract class AbstractService {
+
+    private static final Logger logger = LoggerFactory.getLogger(AbstractService.class);
+
+    /**
+     * Create {@link Response} from {@link com.xmage.ws.resource.Resource}
+     *
+     * @param resource Resource to build response based on
+     * @return
+     */
+    public final Response responseWithError(Resource resource) {
+        long t1 = System.currentTimeMillis();
+        JSONObject response = buildResponse(resource);
+        response = verifyResponse(response);
+        String json = prettifyResponse(response);
+
+        Response responseObject = Response.status(200).entity(json).build();
+        long t2 = System.currentTimeMillis();
+        logger.info("responseWithError time: " + (t2 - t1) + "ms");
+        return responseObject;
+    }
+
+    private JSONObject buildResponse(Resource resource) {
+        JSONObject response = null;
+        try {
+            response = ResponseBuilder.build(resource);
+        } catch (Exception e) {
+            logger.error("responseWithError: ", e);
+
+        }
+
+        return response;
+    }
+
+    private String prettifyResponse(JSONObject response) {
+        String json = response.toJSONString();
+
+        try {
+            json = new org.apache.sling.commons.json.JSONObject(json).toString(1);
+        } catch (JSONException jse) {
+            jse.printStackTrace();
+        }
+
+        return json;
+    }
+
+    private JSONObject verifyResponse(JSONObject response) {
+        if (response == null) {
+            logger.error("Something bad happened on response creation");
+            response = ResponseBuilder.build(DomainErrors.Errors.STATUS_SERVER_ERROR.getCode());
+        }
+        return response;
+    }
+}