[bidi][java] Add remote reference type

Author: pujagani

java/src/org/openqa/selenium/bidi/script/RemoteReference.java

@@ -0,0 +1,55 @@
+package org.openqa.selenium.bidi.script;
+
+import static java.util.Collections.unmodifiableMap;
+import static org.openqa.selenium.bidi.script.RemoteReference.RemoteReferenceType.HANDLE;
+import static org.openqa.selenium.bidi.script.RemoteReference.RemoteReferenceType.SHARED_ID;
+
+import java.util.Map;
+import java.util.TreeMap;
+
+public class RemoteReference extends LocalValue {
+  public enum RemoteReferenceType {
+    HANDLE("handle"),
+    SHARED_ID("sharedId");
+
+    private final String type;
+
+    RemoteReferenceType(String type) {
+      this.type = type;
+    }
+
+    @Override
+    public String toString() {
+      return type;
+    }
+  }
+
+  private String handle;
+  private String sharedId;
+
+  public RemoteReference(String handle, String sharedId) {
+    this.handle = handle;
+    this.sharedId = sharedId;
+  }
+
+  public RemoteReference(RemoteReferenceType type, String value) {
+    if (HANDLE.equals(type)) {
+      this.handle = value;
+    } else {
+      this.sharedId = value;
+    }
+  }
+
+  public Map<String, Object> asMap() {
+    Map<String, String> toReturn = new TreeMap<>();
+    if (handle != null) {
+      toReturn.put(HANDLE.toString(), this.handle);
+    }
+
+    if (sharedId != null) {
+      toReturn.put(SHARED_ID.toString(), this.sharedId);
+    }
+
+    return unmodifiableMap(toReturn);
+  }
+}