Adding MethodContext + StateSerializer.

sdk/src/main/java/io/dapr/actors/DaprClientBuilder.java

@@ -12,11 +12,6 @@
  */
 class DaprClientBuilder {
 
-    /**
-     * Default hostname for Dapr.
-     */
-    private String hostname = Constants.DEFAULT_HOSTNAME;
-
     /**
      * Default port for Dapr after checking environment variable.
      */
@@ -29,18 +24,7 @@ class DaprClientBuilder {
     public DaprAsyncClient buildAsyncClient() {
         OkHttpClient.Builder builder = new OkHttpClient.Builder();
         // TODO: Expose configurations for OkHttpClient or com.microsoft.rest.RestClient.
-        String baseUrl = String.format("http://%s:%d/", this.hostname, this.port);
-        return new DaprHttpAsyncClient(baseUrl, builder.build());
-    }
-
-    /**
-     * Overrides the hostname.
-     * @param hostname new hostname.
-     * @return This instance.
-     */
-    public DaprClientBuilder withHostname(String hostname) {
-        this.hostname = hostname;
-        return this;
+        return new DaprHttpAsyncClient(this.port, builder.build());
     }
 
     /**

sdk/src/main/java/io/dapr/actors/DaprHttpAsyncClient.java

@@ -44,12 +44,12 @@ class DaprHttpAsyncClient implements DaprAsyncClient {
 
     /**
      * Creates a new instance of {@link DaprHttpAsyncClient}.
-     * @param baseUrl Base Url for calling Dapr. (e.g. http://localhost:3500/)
+     * @param port Port for calling Dapr. (e.g. 3500)
      * @param httpClient RestClient used for all API calls in this new instance.
      */
-    DaprHttpAsyncClient(String baseUrl, OkHttpClient httpClient)
+    DaprHttpAsyncClient(int port, OkHttpClient httpClient)
     {
-        this.baseUrl = baseUrl;
+        this.baseUrl = String.format("http://%s:%d/", Constants.DEFAULT_HOSTNAME, port);;
         this.httpClient = httpClient;
     }
 

sdk/src/main/java/io/dapr/actors/runtime/ActorCallType.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ */
+
+package io.dapr.actors.runtime;
+
+/**
+ * Represents the call-type associated with the method invoked by actor runtime.
+ */
+enum ActorCallType {
+
+    /**
+     * Specifies that the method invoked is an actor interface method for a given client request.
+     */
+    ACTOR_INTERFACE_METHOD,
+
+    /**
+     * Specifies that the method invoked is a timer callback method.
+     */
+    TIMER_METHOD,
+
+    /**
+     * Specifies that the method is when a reminder fires.
+     */
+    REMINDER_METHOD
+}

sdk/src/main/java/io/dapr/actors/runtime/ActorMethodContext.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ */
+
+package io.dapr.actors.runtime;
+
+/**
+ * Contains information about the method that is invoked by actor runtime.
+ */
+class ActorMethodContext {
+
+    /**
+     * Method name to be invoked.
+     */
+    private final String methodName;
+
+    /**
+     * Call type to be used.
+     */
+    private final ActorCallType callType;
+
+    /**
+     * Constructs a new instance of {@link ActorMethodContext}
+     * @param methodName Method name to be invoked.
+     * @param callType Call type to be used.
+     */
+    private ActorMethodContext(String methodName, ActorCallType callType) {
+        this.methodName = methodName;
+        this.callType = callType;
+    }
+
+    /**
+     * Gets the name of the method invoked by actor runtime.
+     * @return The method name.
+     */
+    public String getMethodName() {
+        return this.methodName;
+    }
+
+    /**
+     * Gets the call type to be used.
+     * @return Call type.
+     */
+    public ActorCallType getCallType() {
+        return this.callType;
+    }
+
+    /**
+     * Creates a context to invoke an Actor's method.
+     * @param methodName THe method to be invoked.
+     * @return Context of the method call as {@link ActorMethodContext}
+     */
+    static ActorMethodContext CreateForActor(String methodName)
+    {
+        return new ActorMethodContext(methodName, ActorCallType.ACTOR_INTERFACE_METHOD);
+    }
+
+    /**
+     * Creates a context to invoke an Actor's timer.
+     * @param methodName THe method to be invoked.
+     * @return Context of the method call as {@link ActorMethodContext}
+     */
+    static ActorMethodContext CreateForTimer(String methodName)
+    {
+        return new ActorMethodContext(methodName, ActorCallType.TIMER_METHOD);
+    }
+
+    /**
+     * Creates a context to invoke an Actor's reminder.
+     * @param methodName THe method to be invoked.
+     * @return Context of the method call as {@link ActorMethodContext}
+     */
+    static ActorMethodContext CreateForReminder(String methodName)
+    {
+        return new ActorMethodContext(methodName, ActorCallType.REMINDER_METHOD);
+    }
+}

sdk/src/main/java/io/dapr/actors/runtime/ActorStateProviderSerializer.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ */
+
+package io.dapr.actors.runtime;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.IOException;
+
+/**
+ * Serializes and deserializes an object.
+ */
+class ActorStateProviderSerializer {
+
+    /**
+     * Shared Json serializer/deserializer as per Jackson's documentation.
+     */
+    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+
+    /**
+     * Serializes a given state object into byte array.
+     * @param state State object to be serialized.
+     * @return Array of bytes[] with the serialized content.
+     * @throws IOException
+     */
+    byte[] serialize(Object state) throws IOException {
+        return OBJECT_MAPPER.writeValueAsBytes(state);
+    }
+
+    /**
+     * Deserializes the byte array into the original object.
+     * @param buffer Array of bytes to be parsed.
+     * @param clazz Type of the object being deserialized.
+     * @param <T> Generic type of the object being deserialized.
+     * @return Object of type T.
+     * @throws IOException
+     */
+    <T> T deserialize(byte[] buffer, Class<T> clazz) throws IOException {
+        return OBJECT_MAPPER.readValue(buffer, clazz);
+    }
+
+}

sdk/src/main/java/io/dapr/actors/runtime/ActorTypeInformation.java

@@ -12,7 +12,7 @@
 /**
  * Contains the information about the class implementing an actor.
  */
-public final class ActorTypeInformation {
+final class ActorTypeInformation {
 
     /**
      * Actor type's name.