add eventgrid support

azure-functions-java-core/src/main/java/com/microsoft/azure/serverless/functions/annotation/EventGridTrigger.java

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See License.txt in the project root for
+ * license information.
+ */
+
+package com.microsoft.azure.serverless.functions.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.PARAMETER})
+public @interface EventGridTrigger {
+    String name();
+
+    String dataType() default "";
+}

azure-functions-java-worker/src/main/java/com/microsoft/azure/webjobs/script/binding/BindingDefinition.java

@@ -15,7 +15,7 @@ public final class BindingDefinition {
     boolean isOutput() { return this.direction == BindingInfo.Direction.out || this.direction == BindingInfo.Direction.inout; }
 
     enum BindingType {
-        TIMER, HTTP, QUEUE, TABLE, BLOB, SERVICEBUS, EVENTHUB, NOTIFICATIONHUB, MANUAL, MOBILETABLE, DOCUMENTDB, TWILIOSMS, SENDGRID, UNKNOWN;
+        TIMER, HTTP, QUEUE, TABLE, BLOB, SERVICEBUS, EVENTHUB, NOTIFICATIONHUB, MANUAL, MOBILETABLE, DOCUMENTDB, TWILIOSMS, SENDGRID, EVENTGRID, UNKNOWN;
 
         private static BindingType parse(String type) {
             switch (type) {
@@ -32,6 +32,7 @@ public final class BindingDefinition {
                 case "documentDB": return DOCUMENTDB;
                 case "twilioSms": return TWILIOSMS;
                 case "sendGrid": return SENDGRID;
+                case "eventGridTrigger": return EVENTGRID;
                 default: return UNKNOWN;
             }
         }