[fix]: various concurrencyOperation bug fixes (aws#247)

* clean up concurrency config

* rename parallel result fields

* make DurableContext a DurableFuture interface with extra methods

* rename and minor fix

* add config for parallel branch and runInChildContext

* move proxy methods to DurableFuture

* remove duplicate concurrency code

* cleanup map operation

* minor cleanups

* create a thread for concurrency operation

* fix race conditions in concurrency operation

* avoid marking branch done when parent is done

* remove Noop serdes

* add anyOf

* add anyOf tests

Author: zhongkechen

docs/spec/map.md

@@ -290,7 +290,7 @@ import software.amazon.awssdk.services.lambda.model.ContextOptions;
 import software.amazon.awssdk.services.lambda.model.Operation;
 import software.amazon.awssdk.services.lambda.model.OperationAction;
 import software.amazon.awssdk.services.lambda.model.OperationUpdate;
-import software.amazon.lambda.durable.CompletionConfig;
+import software.amazon.lambda.durable.config.CompletionConfig;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.TypeToken;
 import software.amazon.lambda.durable.model.CompletionReason;
@@ -480,8 +480,8 @@ import java.util.Collections;
 import java.util.List;
 import java.util.function.Function;
 import software.amazon.lambda.durable.DurableContext;
-import software.amazon.lambda.durable.MapConfig;
-import software.amazon.lambda.durable.MapFunction;
+import software.amazon.lambda.durable.config.MapConfig;
+import software.amazon.lambda.durable.DurableContext.MapFunction;
 import software.amazon.lambda.durable.TypeToken;
 import software.amazon.lambda.durable.model.BatchResult;
 import software.amazon.lambda.durable.model.OperationSubType;
@@ -900,8 +900,8 @@ package software.amazon.lambda.durable.operation;
 
 import java.util.List;
 import software.amazon.lambda.durable.DurableContext;
-import software.amazon.lambda.durable.MapConfig;
-import software.amazon.lambda.durable.MapFunction;
+import software.amazon.lambda.durable.config.MapConfig;
+import software.amazon.lambda.durable.DurableContext.MapFunction;
 import software.amazon.lambda.durable.model.BatchResult;
 import software.amazon.lambda.durable.model.OperationSubType;
 

examples/src/main/java/software/amazon/lambda/durable/examples/CallbackExample.java

@@ -3,9 +3,9 @@
 package software.amazon.lambda.durable.examples;
 
 import java.time.Duration;
-import software.amazon.lambda.durable.CallbackConfig;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
+import software.amazon.lambda.durable.config.CallbackConfig;
 
 /**
  * Example demonstrating callback operations for external system integration.

examples/src/main/java/software/amazon/lambda/durable/examples/ComplexMapExample.java

@@ -5,10 +5,10 @@
 import java.time.Duration;
 import java.util.List;
 import java.util.stream.Collectors;
-import software.amazon.lambda.durable.CompletionConfig;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.MapConfig;
+import software.amazon.lambda.durable.config.CompletionConfig;
+import software.amazon.lambda.durable.config.MapConfig;
 
 /**
  * Example demonstrating advanced map features: wait operations inside branches, error handling, and early termination.

examples/src/main/java/software/amazon/lambda/durable/examples/CustomPollingExample.java

@@ -6,7 +6,7 @@
 import software.amazon.lambda.durable.DurableConfig;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.InvokeConfig;
+import software.amazon.lambda.durable.config.InvokeConfig;
 import software.amazon.lambda.durable.retry.JitterStrategy;
 import software.amazon.lambda.durable.retry.PollingStrategies;
 

examples/src/main/java/software/amazon/lambda/durable/examples/ErrorHandlingExample.java

@@ -6,8 +6,8 @@
 import org.slf4j.LoggerFactory;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.StepConfig;
-import software.amazon.lambda.durable.StepSemantics;
+import software.amazon.lambda.durable.config.StepConfig;
+import software.amazon.lambda.durable.config.StepSemantics;
 import software.amazon.lambda.durable.exception.StepFailedException;
 import software.amazon.lambda.durable.exception.StepInterruptedException;
 import software.amazon.lambda.durable.retry.RetryStrategies;

examples/src/main/java/software/amazon/lambda/durable/examples/GenericInputOutputExample.java

@@ -9,8 +9,8 @@
 import org.slf4j.LoggerFactory;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.StepConfig;
 import software.amazon.lambda.durable.TypeToken;
+import software.amazon.lambda.durable.config.StepConfig;
 import software.amazon.lambda.durable.retry.RetryStrategies;
 
 /**

examples/src/main/java/software/amazon/lambda/durable/examples/GenericTypesExample.java

@@ -9,8 +9,8 @@
 import org.slf4j.LoggerFactory;
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.StepConfig;
 import software.amazon.lambda.durable.TypeToken;
+import software.amazon.lambda.durable.config.StepConfig;
 import software.amazon.lambda.durable.retry.RetryStrategies;
 
 /**

examples/src/main/java/software/amazon/lambda/durable/examples/RetryInProcessExample.java

@@ -9,7 +9,7 @@
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableFuture;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.StepConfig;
+import software.amazon.lambda.durable.config.StepConfig;
 import software.amazon.lambda.durable.retry.JitterStrategy;
 import software.amazon.lambda.durable.retry.RetryStrategies;
 

examples/src/main/java/software/amazon/lambda/durable/examples/SimpleInvokeExample.java

@@ -4,7 +4,7 @@
 
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.InvokeConfig;
+import software.amazon.lambda.durable.config.InvokeConfig;
 
 /**
  * Simple example demonstrating basic invoke execution with the Durable Execution SDK.

examples/src/main/java/software/amazon/lambda/durable/examples/WaitAtLeastExample.java

@@ -8,7 +8,7 @@
 import software.amazon.lambda.durable.DurableContext;
 import software.amazon.lambda.durable.DurableFuture;
 import software.amazon.lambda.durable.DurableHandler;
-import software.amazon.lambda.durable.StepConfig;
+import software.amazon.lambda.durable.config.StepConfig;
 import software.amazon.lambda.durable.retry.RetryStrategies;
 
 /**