Add java websocket support (#137)

* add decode example for mic

* some changes to README.md

* add java websocket srv

* change to readwav to static

* make some changes to code comments

* little change for readme.md

* fix bug about multiple threads

* made little modification

* add protocol in readme, removed static Queue and add lmConfig

---------

Co-authored-by: root <root@localhost.localdomain>

java-api-examples/src/websocketsrv/ConnectionData.java

@@ -0,0 +1,65 @@
+/*
+ * // Copyright 2022-2023 by zhaoming
+ */
+// connection data act as a bridge between different threads pools
+
+package websocketsrv;
+
+import com.k2fsa.sherpa.onnx.OnlineStream;
+import java.time.LocalDateTime;
+import java.util.LinkedList;
+import java.util.Queue;
+import java.util.concurrent.*;
+import org.java_websocket.WebSocket;
+
+public class ConnectionData {
+
+  private WebSocket webSocket; // the websocket for this connection data
+
+  private OnlineStream stream; // connection stream
+
+  private Queue<float[]> queueSamples =
+      new LinkedList<float[]>(); // binary data rec from the client
+
+  private boolean eof = false; // connection data is done
+
+  private LocalDateTime lastHandleTime; // used for time out in ms
+
+  public ConnectionData(WebSocket webSocket, OnlineStream stream) {
+    this.webSocket = webSocket;
+
+    this.stream = stream;
+  }
+
+  public void addSamplesToData(float[] samples) {
+    this.queueSamples.add(samples);
+  }
+
+  public LocalDateTime getLastHandleTime() {
+    return this.lastHandleTime;
+  }
+
+  public void setLastHandleTime(LocalDateTime now) {
+    this.lastHandleTime = now;
+  }
+
+  public boolean getEof() {
+    return this.eof;
+  }
+
+  public void setEof(boolean eof) {
+    this.eof = eof;
+  }
+
+  public WebSocket getWebSocket() {
+    return this.webSocket;
+  }
+
+  public Queue<float[]> getQueueSamples() {
+    return this.queueSamples;
+  }
+
+  public OnlineStream getStream() {
+    return this.stream;
+  }
+}