c

src/main/java/com/showcase/synapse/product/aggregate/ChannelAggregate.java

+package com.showcase.synapse.product.aggregate;
+
+import static org.axonframework.modelling.command.AggregateLifecycle.apply;
+
+import org.axonframework.commandhandling.CommandHandler;
+import org.axonframework.eventsourcing.EventSourcingHandler;
+import org.axonframework.modelling.command.AggregateIdentifier;
+import org.axonframework.spring.stereotype.Aggregate;
+
+import com.showcase.synapse.product.command.CreateChannelCommand;
+import com.showcase.synapse.product.event.ChannelCreatedEvent;
+
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+@Aggregate
+@NoArgsConstructor
+@Slf4j
+public class ChannelAggregate {
+
+    @AggregateIdentifier
+    private Integer id;
+
+
+    @CommandHandler
+    public ChannelAggregate(CreateChannelCommand command) {
+    	log.info("[ChannelAggregate(CreateChannelCommand) > apply new ChannelCreatedEvent]");
+        apply(new ChannelCreatedEvent(command.getId(), command.getName(), command.getDiscountRate()));
+    }
+
+    @EventSourcingHandler
+    public void createChannel(ChannelCreatedEvent event) {
+        this.id = event.getId();
+    }
+
+}

src/main/java/com/showcase/synapse/product/aggregate/ProductAggregate.java

 package com.showcase.synapse.product.aggregate;
 
-import lombok.NoArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
+import static org.axonframework.modelling.command.AggregateLifecycle.apply;
 
 import org.axonframework.commandhandling.CommandHandler;
 import org.axonframework.eventsourcing.EventSourcingHandler;
@@ -9,14 +8,14 @@ import org.axonframework.modelling.command.AggregateIdentifier;
 import org.axonframework.spring.stereotype.Aggregate;
 
 import com.showcase.synapse.product.command.ChangeQuantityCommand;
+import com.showcase.synapse.product.command.CreateChannelCommand;
 import com.showcase.synapse.product.command.CreateProductCommand;
+import com.showcase.synapse.product.event.ChannelCreatedEvent;
 import com.showcase.synapse.product.event.ProductCreatedEvent;
 import com.showcase.synapse.product.event.ProductQuantityChangedEvent;
-import com.showcase.synapse.product.saga.ProductSaga;
-
-import java.math.BigDecimal;
 
-import static org.axonframework.modelling.command.AggregateLifecycle.apply;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
 @Aggregate
 @NoArgsConstructor

src/main/java/com/showcase/synapse/product/command/CreateChannelCommand.java

+package com.showcase.synapse.product.command;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import org.axonframework.modelling.command.TargetAggregateIdentifier;
+
+import java.math.BigDecimal;
+
+import javax.persistence.Column;
+
+@AllArgsConstructor
+@Getter
+public class CreateChannelCommand {
+
+    @TargetAggregateIdentifier
+    private final Integer id;
+    private final String name;
+    private final BigDecimal discountRate;
+
+}

src/main/java/com/showcase/synapse/product/controller/ProductController.java

 package com.showcase.synapse.product.controller;
 
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutionException;
+
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
+import com.showcase.synapse.product.dto.ChannelCreateDto;
 import com.showcase.synapse.product.dto.ProductCreateDto;
+import com.showcase.synapse.product.entity.ChannelEntity;
 import com.showcase.synapse.product.entity.ProductEntity;
 import com.showcase.synapse.product.service.ProductService;
 
-import java.math.BigDecimal;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ExecutionException;
-
 @RestController
-@RequestMapping("/api/msa/product")
+@RequestMapping("/api/msa")
 @CrossOrigin(origins = "*")
 public class ProductController {
 
@@ -24,18 +30,25 @@ public class ProductController {
         this.productService = productService;
     }
 
-    @GetMapping("/")
+    @GetMapping("/product")
     public ResponseEntity<List<ProductEntity>> getProducts() throws ExecutionException, InterruptedException {
         List<ProductEntity> productEntities = productService.getProducts();
         return ResponseEntity.ok(productEntities);
 
     }
+    
+    @GetMapping("/channel")
+    public ResponseEntity<List<ChannelEntity>> getChannels() throws ExecutionException, InterruptedException {
+    	List<ChannelEntity> channelEntity = productService.getChannels();
+    	return ResponseEntity.ok(channelEntity);
+    	
+    }
 
-    @PostMapping("/")
+    @PostMapping("/product")
     public ResponseEntity<Map<String, String>> productCreate(@RequestBody ProductCreateDto productCreateDto) {
         String productId = productService.createProduct(productCreateDto.getName(),
         		productCreateDto.getComment(), 
-                BigDecimal.valueOf(productCreateDto.getPrice()),
+                productCreateDto.getPrice(),
                 productCreateDto.getChannel());
         HashMap<String, String> m = new HashMap<>();
         m.put("productId", productId);
@@ -43,4 +56,16 @@ public class ProductController {
 
         return ResponseEntity.ok(m);
     }
+    
+    @PostMapping("/channel")
+    public ResponseEntity<Map<String, String>> channelCreate(@RequestBody ChannelCreateDto channelCreateDto) {
+    	int channelId = productService.createChannel(channelCreateDto.getId(),
+    			channelCreateDto.getName(), 
+    			channelCreateDto.getDiscountRate());
+    	HashMap<String, String> m = new HashMap<>();
+    	m.put("channelId", String.valueOf(channelId));
+    	m.put("name", channelCreateDto.getName());
+    	
+    	return ResponseEntity.ok(m);
+    }
 }

src/main/java/com/showcase/synapse/product/dto/ChannelCreateDto.java

+package com.showcase.synapse.product.dto;
+
+import java.math.BigDecimal;
+
+import javax.persistence.Column;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class ChannelCreateDto {
+    private int id;
+    private String name;
+    private BigDecimal discountRate;
+}

src/main/java/com/showcase/synapse/product/dto/ProductCreateDto.java

 package com.showcase.synapse.product.dto;
 
+import java.math.BigDecimal;
+
 import lombok.Getter;
 import lombok.Setter;
 
@@ -8,7 +10,8 @@ import lombok.Setter;
 public class ProductCreateDto {
     private String name;
     private String comment;
-    private int price;
+    private BigDecimal price;
     private int channel;
+    private BigDecimal discountRate;
 }
 

src/main/java/com/showcase/synapse/product/entity/ChannelEntity.java

 package com.showcase.synapse.product.entity;
 
+import java.math.BigDecimal;
+
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
@@ -18,10 +20,13 @@ import lombok.Setter;
 @NoArgsConstructor
 public class ChannelEntity {
 
-	@Id @GeneratedValue(strategy = GenerationType.IDENTITY) 
+	@Id
 	@Column(name = "channel_id")
     private Integer id;
     
     @Column(name = "name")
     private String name;
+    
+    @Column(name = "discount_rate")
+    private BigDecimal discountRate;
 }

src/main/java/com/showcase/synapse/product/entity/ProductEntity.java

@@ -18,7 +18,7 @@ import lombok.Setter;
 @Setter
 @AllArgsConstructor
 @NoArgsConstructor
-public class ProductEntity{
+public class ProductEntity {
 	
 	@Id
     private String id;

src/main/java/com/showcase/synapse/product/event/ChannelCreatedEvent.java

+package com.showcase.synapse.product.event;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.math.BigDecimal;
+
+@AllArgsConstructor
+@Getter
+public class ChannelCreatedEvent {
+    private Integer id;
+    private String name;
+    private BigDecimal discountRate;
+}

src/main/java/com/showcase/synapse/product/event/handler/ProductEventHandler.java

 package com.showcase.synapse.product.event.handler;
 
-import lombok.AllArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.axonframework.eventhandling.EventHandler;
 import org.springframework.stereotype.Component;
 
 import com.showcase.synapse.product.entity.ChannelEntity;
 import com.showcase.synapse.product.entity.ProductEntity;
+import com.showcase.synapse.product.event.ChannelCreatedEvent;
 import com.showcase.synapse.product.event.ProductCreatedEvent;
 import com.showcase.synapse.product.event.ProductQuantityChangedEvent;
+import com.showcase.synapse.product.repository.ChannelRepository;
 import com.showcase.synapse.product.repository.ProductRepository;
 
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
 @Component
 @AllArgsConstructor
 @Slf4j
 public class ProductEventHandler {
 
     private final ProductRepository productRepository;
+    private final ChannelRepository channelRepository;
 
     @EventHandler
     protected void saveProduct(ProductCreatedEvent productCreatedEvent) {
@@ -32,9 +36,23 @@ public class ProductEventHandler {
         ce.setId(productCreatedEvent.getChannel());
         productEntity.setChannel(ce);
 
-        productRepository.save(productEntity);
+        productRepository.save(productEntity);       
 
     }
+    
+    @EventHandler
+    protected void saveChannel(ChannelCreatedEvent channelCreatedEvent) {
+    	
+    	log.info("ChannelCreatedEvent 이벤트 받음?");
+    	log.info("ProductEventHandler > [ChannelCreatedEvent] channelCreatedEvent");
+    	ChannelEntity channelEntity = new ChannelEntity();
+    	channelEntity.setId(channelCreatedEvent.getId());
+    	channelEntity.setName(channelCreatedEvent.getName());
+    	channelEntity.setDiscountRate(channelCreatedEvent.getDiscountRate());
+    	
+    	channelRepository.save(channelEntity);       
+    	
+    }
 
     @EventHandler
     protected void changeQuantity(ProductQuantityChangedEvent productQuantityChangedEvent) {

src/main/java/com/showcase/synapse/product/query/GetChannelQuery.java

+package com.showcase.synapse.product.query;
+
+public class GetChannelQuery {
+
+}

src/main/java/com/showcase/synapse/product/query/handler/ProductQueryHandler.java

@@ -5,8 +5,11 @@ import java.util.List;
 import org.axonframework.queryhandling.QueryHandler;
 import org.springframework.stereotype.Component;
 
+import com.showcase.synapse.product.entity.ChannelEntity;
 import com.showcase.synapse.product.entity.ProductEntity;
+import com.showcase.synapse.product.query.GetChannelQuery;
 import com.showcase.synapse.product.query.GetProductsQuery;
+import com.showcase.synapse.product.repository.ChannelRepository;
 import com.showcase.synapse.product.repository.ProductRepository;
 
 import lombok.RequiredArgsConstructor;
@@ -18,11 +21,18 @@ import lombok.extern.slf4j.Slf4j;
 public class ProductQueryHandler {
 
     private final ProductRepository productRepository;
+    private final ChannelRepository channelRepository;
 
     @QueryHandler
     protected List<ProductEntity> on(GetProductsQuery query) {
     	log.info("---product query---");
         return productRepository.findAll();
     }
+    
+    @QueryHandler
+    protected List<ChannelEntity> on(GetChannelQuery query) {
+    	log.info("---channel query---");
+    	return channelRepository.findAll();
+    }
 
 }

src/main/java/com/showcase/synapse/product/repository/ChannelRepository.java

+package com.showcase.synapse.product.repository;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.showcase.synapse.product.entity.ChannelEntity;
+
+public interface ChannelRepository extends JpaRepository<ChannelEntity, String> {
+
+}

src/main/java/com/showcase/synapse/product/service/ProductService.java

@@ -10,8 +10,11 @@ import org.axonframework.messaging.responsetypes.ResponseTypes;
 import org.axonframework.queryhandling.QueryGateway;
 import org.springframework.stereotype.Service;
 
+import com.showcase.synapse.product.command.CreateChannelCommand;
 import com.showcase.synapse.product.command.CreateProductCommand;
+import com.showcase.synapse.product.entity.ChannelEntity;
 import com.showcase.synapse.product.entity.ProductEntity;
+import com.showcase.synapse.product.query.GetChannelQuery;
 import com.showcase.synapse.product.query.GetProductsQuery;
 
 import lombok.extern.slf4j.Slf4j;
@@ -41,10 +44,28 @@ public class ProductService {
         System.out.printf("returnValue: %s \n", returnValue);
         return returnValue;
     }
+    
+    public int createChannel(int id, String name, BigDecimal discountRate) {
+    	log.info("[@Service createChannel] new CreateChannelCommand");
+    	// command생성
+    	CreateChannelCommand createChannelCommand = new CreateChannelCommand(
+    			id, name, discountRate);
+    	System.out.println("test");
+    	// 여기
+    	// 생성한 command전송(비동기)
+    	int returnValue = commandGateway.sendAndWait(createChannelCommand);
+    	System.out.printf("returnValue: %s \n", returnValue);
+    	return returnValue;
+    }
 
     public List<ProductEntity> getProducts() throws ExecutionException, InterruptedException {
         return queryGateway.query(new GetProductsQuery(),
                 ResponseTypes.multipleInstancesOf(ProductEntity.class)).get();
     }
 
+	public List<ChannelEntity> getChannels() throws ExecutionException, InterruptedException {
+        return queryGateway.query(new GetChannelQuery(),
+                ResponseTypes.multipleInstancesOf(ChannelEntity.class)).get();
+	}
+
 }