Added blog service support

Author: desertkun

pom.xml

@@ -10,7 +10,7 @@
 	<groupId>com.github.anthill-platform</groupId>
 	<artifactId>anthill-runtime-java</artifactId>
 	<packaging>jar</packaging>
-	<version>0.1.7</version>
+	<version>0.1.8</version>
 
 	<name>Anthill Java Runtime</name>
 	<description>Java Runtime for Anthill Platform</description>

src/org/anthillplatform/runtime/AnthillRuntime.java

@@ -112,6 +112,7 @@ private void registerServices()
         register(SocialService.ID, SocialService.class);
         register(StaticService.ID, StaticService.class);
         register(StoreService.ID, StoreService.class);
+        register(BlogService.ID, BlogService.class);
     }
 
     public Service setService(String serviceId, String location)

src/org/anthillplatform/runtime/services/BlogService.java

@@ -0,0 +1,152 @@
+package org.anthillplatform.runtime.services;
+
+import org.anthillplatform.runtime.AnthillRuntime;
+import org.anthillplatform.runtime.requests.JsonRequest;
+import org.anthillplatform.runtime.requests.Request;
+import org.anthillplatform.runtime.util.Utils;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.text.SimpleDateFormat;
+import java.util.*;
+
+/**
+ * A service to deliver news and patch notes feed to the users inside the game
+ *
+ * See https://github.com/anthill-platform/anthill-blog
+ */
+public class BlogService extends Service
+{
+    private JsonRequest currentRequest;
+
+    public static final String ID = "blog";
+    public static final String API_VERSION = "0.2";
+
+    /**
+     * Please note that you should not create an instance of the service yourself,
+     * and use AnthillRuntime.Get(BlogService.ID, BlogService.class) to get existing one instead
+     */
+    public BlogService(AnthillRuntime runtime, String location)
+    {
+        super(runtime, location, ID, API_VERSION);
+    }
+
+    public static BlogService Get()
+    {
+        return AnthillRuntime.Get(ID, BlogService.class);
+    }
+
+    public interface GetBlogEntriesCallback
+    {
+        void complete(BlogService service, Request request, Request.Result result, BlogEntriesList blogEntries);
+    }
+
+    public static class BlogEntriesList extends LinkedList<BlogEntry>
+    {
+        public void read(JSONArray entries)
+        {
+            clear();
+
+            for (int i = 0, t = entries.length(); i < t; i++)
+            {
+                BlogEntry event = new BlogEntry();
+                JSONObject data = entries.getJSONObject(i);
+
+                if (data != null)
+                {
+                    if (!event.read(data))
+                        continue;
+                }
+
+                this.add(event);
+            }
+        }
+    }
+
+    private static SimpleDateFormat getTimeFormat()
+    {
+        return Utils.DATE_FORMAT;
+    }
+
+    public static class BlogEntry
+    {
+        public JSONObject data;
+        public int id;
+        public Date dateCreate;
+        public Date dateUpdate;
+
+        public BlogEntry()
+        {
+        }
+
+        public boolean read(JSONObject payload)
+        {
+            id = payload.getInt("id");
+            data = payload.getJSONObject("data");
+
+            try
+            {
+                SimpleDateFormat format = getTimeFormat();
+
+                dateCreate = format.parse(payload.getString("create_date"));
+                dateUpdate = format.parse(payload.getString("update_date"));
+            }
+            catch (Exception ignored)
+            {
+                return false;
+            }
+
+            return true;
+        }
+    }
+
+    public void getBlogEntries(
+        LoginService.AccessToken accessToken,
+        String blog,
+        final GetBlogEntriesCallback callback)
+    {
+        if (accessToken == null)
+        {
+            callback.complete(BlogService.this, null, Request.Result.forbidden, null);
+            return;
+        }
+
+        if (currentRequest != null)
+        {
+            callback.complete(BlogService.this, null, Request.Result.pending, null);
+            return;
+        }
+
+        currentRequest = new JsonRequest(getLocation() + "/blog/" + blog, new Request.RequestCallback()
+        {
+            @Override
+            public void complete(Request request, Request.Result result)
+            {
+                currentRequest = null;
+
+                if (result == Request.Result.success)
+                {
+                    JSONObject response = ((JsonRequest) request).getObject();
+
+                    JSONArray entries = response.getJSONArray("entries");
+                    if (entries != null)
+                    {
+                        BlogEntriesList blogEntries = new BlogEntriesList();
+                        blogEntries.read(entries);
+                        callback.complete(BlogService.this, request, result, blogEntries);
+                        return;
+                    }
+
+                }
+
+                callback.complete(BlogService.this, request, result, null);
+            }
+        });
+
+        currentRequest.setAPIVersion(getAPIVersion());
+        Request.Fields queryArguments = new Request.Fields();
+        currentRequest.setQueryArguments(queryArguments);
+        currentRequest.setToken(accessToken);
+        currentRequest.get();
+    }
+}