Added lang support to requests. Optimized bot initialization.

README.md

@@ -1,99 +1,150 @@
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+[![javadoc](https://javadoc.io/badge2/com.github.yvasyliev/java-vk-bots-longpoll-api/javadoc.svg?kill_cache=1)](https://javadoc.io/doc/com.github.yvasyliev/java-vk-bots-longpoll-api)
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+
 # Java VK Bots Long Poll API
+
 A Java library to create VK bots using Bots Long Poll API.
 
 ## Description
-An easy-to-use and lightweight Java library that implements [Bots Long Poll API](https://vk.com/dev/bots_longpoll). Uses API version: `5.131`.
+
+An easy-to-use and lightweight Java library that implements [Bots Long Poll API](https://vk.com/dev/bots_longpoll). Uses
+API version: `5.131`.
 
 ## Note
+
 This library keeps on improving. Feel free to create issues or pull requests.
 
 ## Third-party dependencies
+
 This library uses the next third-party dependencies:
+
 * `Gson`
 * `SLF4J`
 * `OkHttp`
 
 ## Requirements
+
 1. `Java 8` or higher
 2. `Maven` or other build tool
 
 ## Quickstart
+
 1. Create VK Community.
 2. Go to `Manage` - `API usage` - `Access tokens` and create `access_token`.
-3. Add the library to your `Maven` project: 
-```xml
-<dependency>
-  <groupId>com.github.yvasyliev</groupId>
-  <artifactId>java-vk-bots-longpoll-api</artifactId>
-  <version>4.0.0</version>
-</dependency>
-```
+3. Add the library to your `Maven` project:
+   ```xml
+   <dependency>
+       <groupId>com.github.yvasyliev</groupId>
+       <artifactId>java-vk-bots-longpoll-api</artifactId>
+       <version>4.1.0</version>
+   </dependency>
+   ```
 4. Extend `LongPollBot` class and override necessary methods:
-```java
-public class HelloBot extends LongPollBot {
-    @Override
-    public void onMessageNew(MessageNew messageNew) {
-        try {
+   ```java
+   import api.longpoll.bots.LongPollBot;
+   import api.longpoll.bots.exceptions.VkApiException;
+   import api.longpoll.bots.model.events.messages.MessageNew;
+   import api.longpoll.bots.model.objects.basic.Message;
+
+   public class HelloBot extends LongPollBot {
+      @Override
+      public void onMessageNew(MessageNew messageNew) {
+         try {
             Message message = messageNew.getMessage();
             if (message.hasText()) {
-                String response = "Hello! Received your message: " + message.getText();
-                vk.messages.send()
-                        .setPeerId(message.getPeerId())
-                        .setMessage(response)
-                        .execute();
+               String response = "Hello! Received your message: " + message.getText();
+               vk.messages.send()
+                       .setPeerId(message.getPeerId())
+                       .setMessage(response)
+                       .execute();
             }
-        } catch (VkApiException e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public String getAccessToken() {
-        return "your_access_token";
-    }
-
-    public static void main(String[] args) throws VkApiException {
-        new HelloBot().startPolling();
-    }
-}
-```
+         } catch (VkApiException e) {
+             e.printStackTrace();
+         }
+      }
+
+      @Override
+      public String getAccessToken() {
+         return "your_access_token";
+      }
+
+      public static void main(String[] args) throws VkApiException {
+         new HelloBot().startPolling();
+      }
+   }
+   ```
+
 ## How to send photos or documents?
+
 Easy:
+
 ```java
-@Override
-public void onMessageNew(MessageNew messageNew) {
-    try {
-        Message message = messageNew.getMessage();
-        vk.messages.send()
-            .setPeerId(message.getPeerId())
-            .setMessage("Sending some files to you...")
-            .addPhoto(new File("your_photo.png")) // to send photo as photo
-            .addDoc(new File("your_photo.png")) // to send photo as document
-            .execute();
-    } catch (VkApiException e) {
-        e.printStackTrace();
-    }
+import api.longpoll.bots.LongPollBot;
+import api.longpoll.bots.exceptions.VkApiException;
+import api.longpoll.bots.model.events.messages.MessageNew;
+import api.longpoll.bots.model.objects.basic.Message;
+import java.io.File;
+
+public class HelloBot extends LongPollBot {
+   @Override
+   public void onMessageNew(MessageNew messageNew) {
+      try {
+         Message message = messageNew.getMessage();
+         vk.messages.send()
+                 .setPeerId(message.getPeerId())
+                 .setMessage("Sending some files to you...")
+                 .addPhoto(new File("your_photo.png")) // to send photo as photo
+                 .addDoc(new File("your_photo.png")) // to send photo as document
+                 .execute();
+      } catch (VkApiException e) {
+         e.printStackTrace();
+      }
+   }
 }
 ```
+
 ## More Examples
+
 Find more examples of bot usage [here](https://github.com/yvasyliev/java-vk-bots-long-poll-api-examples).
+
 ## Async execution
+
 Each API method can be executed asynchronously:
+
 ```java
-CompletableFuture<Send.ResponseBody> future = vk.messages.send()
-        .setPeerId(peerId)
-        .setMessage("Sending message asynchronously...")
-        .executeAsync();
+import api.longpoll.bots.LongPollBot;
+import api.longpoll.bots.exceptions.VkApiException;
+import api.longpoll.bots.methods.impl.messages.Send;import api.longpoll.bots.model.events.messages.MessageNew;
+import api.longpoll.bots.model.objects.basic.Message;
+import java.io.File;import java.util.concurrent.CompletableFuture;
+
+public class HelloBot extends LongPollBot {
+   @Override
+   public void onMessageNew(MessageNew messageNew) {
+      CompletableFuture<Send.ResponseBody> future = vk.messages.send()
+               .setPeerId(message.getPeerId())
+               .setMessage("Sending message asynchronously...")
+               .executeAsync();
+   }
+}
 ```
+
 ## Bot events
+
 `LongPollBot` can handle the next events:
 
 |                 VK event | Handler method                                                               |
@@ -145,6 +196,8 @@ CompletableFuture<Send.ResponseBody> future = vk.messages.send()
 |            `wall_repost` | `public void onWallRepost(WallPost wallPost)`                                |
 
 ## Logging
-This library uses `SLF4J` API to log all events. You can add any `SLF4J` binding to your project to register events the way you want.
+
+This library uses `SLF4J` API to log all events. You can add any `SLF4J` binding to your project to register events the
+way you want.
 
 It is highly recommended enabling `DEBUG` log level to see sent and received data.

pom.xml

@@ -6,7 +6,7 @@
     <groupId>com.github.yvasyliev</groupId>
     <artifactId>java-vk-bots-longpoll-api</artifactId>
     <packaging>jar</packaging>
-    <version>4.0.0</version>
+    <version>4.1.0</version>
     <name>Java VK Bots Long Poll API</name>
     <description>A Java library to create VK bots using Bots Long Poll API</description>
     <url>https://github.com/yvasyliev/java-vk-bots-long-poll-api</url>

src/main/java/api/longpoll/bots/LongPollBot.java

@@ -3,7 +3,7 @@
 import api.longpoll.bots.exceptions.VkApiException;
 import api.longpoll.bots.exceptions.VkResponseException;
 import api.longpoll.bots.methods.impl.events.GetUpdates;
-import api.longpoll.bots.methods.impl.groups.GetLongPollServer;
+import com.google.gson.JsonObject;
 
 import java.time.LocalDateTime;
 import java.time.temporal.ChronoUnit;
@@ -19,16 +19,6 @@ public abstract class LongPollBot extends VkBot {
      */
     private static final long DEFAULT_SESSION_DURATION = 9;
 
-    /**
-     * Group ID.
-     */
-    private Integer groupId;
-
-    /**
-     * Gets VK long poll server.
-     */
-    private GetLongPollServer getLongPollServer;
-
     /**
      * Gets VK updates.
      */
@@ -89,22 +79,15 @@ public void stopPolling() {
     public void initialize() throws VkApiException {
         initializedAt = LocalDateTime.now();
 
-        if (groupId == null) {
-            groupId = vk.other.execute()
-                    .setCode("return API.groups.getById()@.id[0];")
-                    .execute()
-                    .getResponse()
-                    .getAsInt();
-        }
-
-        if (getLongPollServer == null) {
-            getLongPollServer = new GetLongPollServer(getAccessToken());
-        }
+        JsonObject longPollServer = vk.other.execute()
+                .setCode("return API.groups.getLongPollServer({\"group_id\":API.groups.getById()@.id[0]});")
+                .execute()
+                .getResponse()
+                .getAsJsonObject();
 
-        GetLongPollServer.ResponseBody longPollServer = getLongPollServer.setGroupId(groupId).execute();
-        getUpdates = new GetUpdates(longPollServer.getResponse().getServer())
-                .setKey(longPollServer.getResponse().getKey())
-                .setTs(longPollServer.getResponse().getTs());
+        getUpdates = new GetUpdates(longPollServer.get("server").getAsString())
+                .setKey(longPollServer.get("key").getAsString())
+                .setTs(longPollServer.get("ts").getAsInt());
     }
 
     /**

src/main/java/api/longpoll/bots/methods/impl/VkMethod.java

@@ -3,6 +3,7 @@
 import api.longpoll.bots.exceptions.VkApiException;
 import api.longpoll.bots.exceptions.VkResponseException;
 import api.longpoll.bots.http.LoggerInterceptor;
+import api.longpoll.bots.model.objects.additional.Lang;
 import api.longpoll.bots.validator.VkResponseBodyValidator;
 import com.google.gson.Gson;
 import okhttp3.Call;
@@ -176,4 +177,14 @@ public VkMethod<VkResponse> addParam(String key, Object value) {
         formBodyBuilder.add(key, String.valueOf(value));
         return this;
     }
+
+    /**
+     * Sets {@code lang} parameter.
+     *
+     * @param lang lang value.
+     * @return current instance.
+     */
+    public VkMethod<VkResponse> setLang(Lang lang) {
+        return addParam("lang", lang);
+    }
 }

src/main/java/api/longpoll/bots/model/objects/additional/Lang.java

@@ -0,0 +1,28 @@
+package api.longpoll.bots.model.objects.additional;
+
+/**
+ * Lang.
+ */
+public enum Lang {
+    RU(0),
+    UK(1),
+    BE(2),
+    EN(3),
+    ES(4),
+    FI(5),
+    DE(6),
+    IT(7);
+
+    /**
+     * Lang code.
+     */
+    private final int code;
+
+    Lang(int code) {
+        this.code = code;
+    }
+
+    public int getCode() {
+        return code;
+    }
+}

src/main/java/api/longpoll/bots/model/objects/basic/User.java

@@ -158,7 +158,7 @@ public class User {
      * City specified on user's page in "Contacts" section.
      */
     @SerializedName("city")
-    private String city;
+    private City city;
 
     /**
      * Number of common friends with current user.
@@ -698,11 +698,11 @@ public void setNickname(String nickname) {
         this.nickname = nickname;
     }
 
-    public String getCity() {
+    public City getCity() {
         return city;
     }
 
-    public void setCity(String city) {
+    public void setCity(City city) {
         this.city = city;
     }