docs: update website

Makefile

@@ -0,0 +1,7 @@
+help: ## print this message
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'
+
+build-site: ## build the site
+	mvn javadoc:javadoc site -DskipTests
+
+.PHONY: build-site

README.md

@@ -22,7 +22,7 @@ See also: [Socket.IO-client Java](https://github.com/socketio/socket.io-client-j
 | -------------- | ---------------- | ---------------- |
 | 0.9.x  | 1.x | 1.x |
 | 1.x    | 3.x | 2.x |
-| -      | 4.x | 3.x |
+| WIP    | 4.x | 3.x |
 
 ## Installation
 The latest artifact is available on Maven Central.
@@ -132,43 +132,6 @@ socket = new Socket(opts);
 ## Features
 This library supports all of the features the JS client does, including events, options and upgrading transport. Android is fully supported.
 
-### Extra features only for Java client
-
-#### Accessing HTTP Headers
-You can access HTTP headers like the following.
-
-```java
-socket.on(Socket.EVENT_TRANSPORT, new Emitter.listener() {
-  @Override
-  public void call(Object... args) {
-    // Called on a new transport created.
-    Transport transport = (Transport)args[0];
-
-    transport.on(Transport.EVENT_REQUEST_HEADERS, new Emitter.Listener() {
-      @Override
-      public void call(Object... args) {
-        @SuppressWarnings("unchecked")
-        Map<String, List<String>> headers = (Map<String, List<String>>)args[0];
-        // send cookie value to server.
-        headers.put("Cookie", Arrays.asList("foo=1;"));
-      }
-    }).on(Transport.EVENT_RESPONSE_HEADERS, new Emitter.Listener() {
-      @Override
-      public void call(Object... args) {
-        @SuppressWarnings("unchecked")
-        Map<String, List<String>> headers = (Map<String, List<String>>)args[0];
-        // receive cookie value from server.
-        String cookie = headers.get("Set-Cookie").get(0);
-      }
-    });
-  }
-});
-```
-
-See the Javadoc for more details.
-
-http://socketio.github.io/engine.io-client-java/apidocs/
-
 ## License
 
 MIT

pom.xml

@@ -200,20 +200,9 @@
         <version>2.3</version>
       </plugin>
       <plugin>
-        <groupId>com.github.github</groupId>
-        <artifactId>site-maven-plugin</artifactId>
-        <version>0.12</version>
-        <configuration>
-          <message>Creating site for ${project.version}</message>
-        </configuration>
-        <executions>
-          <execution>
-            <goals>
-              <goal>site</goal>
-            </goals>
-            <phase>site</phase>
-          </execution>
-        </executions>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-site-plugin</artifactId>
+        <version>3.9.1</version>
       </plugin>
     </plugins>
   </build>

src/site/markdown/installation.md

@@ -0,0 +1,33 @@
+## Compatibility
+
+| Client version | Engine.IO server | Socket.IO server |
+| -------------- | ---------------- | ---------------- |
+| 0.9.x  | 1.x | 1.x |
+| 1.x    | 3.x | 2.x |
+| WIP    | 4.x | 3.x |
+
+## Installation
+The latest artifact is available on Maven Central.
+
+### Maven
+Add the following dependency to your `pom.xml`.
+
+```xml
+<dependencies>
+  <dependency>
+    <groupId>io.socket</groupId>
+    <artifactId>engine.io-client</artifactId>
+    <version>1.0.1</version>
+  </dependency>
+</dependencies>
+```
+
+### Gradle
+Add it as a gradle dependency for Android Studio, in `build.gradle`:
+
+```groovy
+compile ('io.socket:engine.io-client:1.0.1') {
+  // excluding org.json which is provided by Android
+  exclude group: 'org.json', module: 'json'
+}
+```

src/site/markdown/usage.md

@@ -0,0 +1,82 @@
+## Usage
+Engine.IO-client Java has the similar api with the JS client. You can use `Socket` to connect:
+
+```java
+socket = new Socket("ws://localhost");
+socket.on(Socket.EVENT_OPEN, new Emitter.Listener() {
+  @Override
+  public void call(Object... args) {
+    socket.send("hi");
+    socket.close();
+  }
+});
+socket.open();
+```
+
+You can listen events as follows:
+
+```java
+socket.on(Socket.EVENT_MESSAGE, new Emitter.Listener() {
+  @Override
+  public void call(Object... args) {
+    String data = (String)args[0];
+  }
+}).on(Socket.EVENT_ERROR, new Emitter.Listener() {
+  @Override
+  public void call(Object... args) {
+    Exception err = (Exception)args[0];
+  }
+});
+```
+
+How to set options:
+
+```java
+opts = new Socket.Options();
+opts.transports = new String[] {WebSocket.NAME};
+
+socket = new Socket(opts);
+```
+
+Sending and receiving binary data:
+
+```java
+socket = new Socket();
+socket.on(Socket.EVENT_OPEN, new Emitter.Listener() {
+  @Override
+  public void call(Object... args) {
+    // send binary data
+    byte[] data = new byte[42];
+    socket.send(data);
+  }
+}).on(Socket.EVENT_MESSAGE, new Emitter.Listener() {
+  @Override
+  public void call(Object... args) {
+    // receive binary data
+    byte[] data = (byte[])args[0];
+  }
+});
+```
+
+Use custom SSL settings:
+
+```java
+OkHttpClient okHttpClient = new OkHttpClient.Builder()
+    .hostnameVerifier(myHostnameVerifier)
+    .sslSocketFactory(mySSLContext.getSocketFactory(), myX509TrustManager)
+    .build();
+
+// default SSLContext for all sockets
+Socket.setDefaultOkHttpWebSocketFactory(okHttpClient);
+Socket.setDefaultOkHttpCallFactory(okHttpClient);
+
+// set as an option
+opts = new Socket.Options();
+opts.callFactory = okHttpClient;
+opts.webSocketFactory = okHttpClient;
+socket = new Socket(opts);
+```
+
+## Features
+
+This library supports all of the features the JS client does, including events, options and upgrading transport. Android is fully supported.

src/site/site.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/DECORATION/1.8.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/DECORATION/1.8.0 http://maven.apache.org/xsd/decoration-1.8.0.xsd">
+
+    <skin>
+        <groupId>org.apache.maven.skins</groupId>
+        <artifactId>maven-fluido-skin</artifactId>
+        <version>1.9</version>
+    </skin>
+
+    <custom>
+        <fluidoSkin>
+            <gitHub>
+                <projectId>socketio/engine.io-client-java</projectId>
+                <ribbonOrientation>right</ribbonOrientation>
+                <ribbonColor>gray</ribbonColor>
+            </gitHub>
+        </fluidoSkin>
+    </custom>
+
+    <body>
+        <menu name="Overview">
+            <item name="Installation" href="./installation.html"/>
+            <item name="Usage" href="./usage.html"/>
+            <item name="Javadoc" href="./apidocs/index.html"/>
+        </menu>
+
+        <menu ref="reports"/>
+    </body>
+</project>