Explicitly handle DirtyTrick exception

Author: bitxon

common-api/src/main/java/bitxon/common/exception/DirtyTrickException.java

@@ -0,0 +1,8 @@
+package bitxon.common.exception;
+
+public class DirtyTrickException extends RuntimeException {
+
+    public DirtyTrickException(String message) {
+        super("Dirty Trick: " + message);
+    }
+}

dropwizard-app/src/main/java/bitxon/dropwizard/DropwizardApplication.java

@@ -5,6 +5,7 @@
 import bitxon.dropwizard.db.AccountDao;
 import bitxon.dropwizard.db.AccountDaoHibernateImpl;
 import bitxon.dropwizard.db.model.Account;
+import bitxon.dropwizard.errorhandler.DirtyTrickExceptionHandler;
 import bitxon.dropwizard.errorhandler.JerseyViolationExceptionHandler;
 import bitxon.dropwizard.errorhandler.ResourceNotFoundExceptionHandler;
 import bitxon.dropwizard.mapper.AccountMapper;
@@ -63,6 +64,7 @@ protected void configure() {
 
         environment.jersey().register(AccountResource.class);
 
+        environment.jersey().register(DirtyTrickExceptionHandler.class);
         environment.jersey().register(JerseyViolationExceptionHandler.class);
         environment.jersey().register(ResourceNotFoundExceptionHandler.class);
     }

dropwizard-app/src/main/java/bitxon/dropwizard/errorhandler/DirtyTrickExceptionHandler.java

@@ -0,0 +1,20 @@
+package bitxon.dropwizard.errorhandler;
+
+import bitxon.common.api.model.error.ErrorResponse;
+import bitxon.common.exception.DirtyTrickException;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.ext.ExceptionMapper;
+import jakarta.ws.rs.ext.Provider;
+
+import java.util.List;
+
+@Provider
+public class DirtyTrickExceptionHandler implements ExceptionMapper<DirtyTrickException> {
+
+    @Override
+    public Response toResponse(DirtyTrickException ex) {
+        return Response
+            .status(500)
+            .entity(new ErrorResponse(List.of(ex.getMessage()))).build();
+    }
+}

dropwizard-app/src/main/java/bitxon/dropwizard/resource/AccountResource.java

@@ -5,6 +5,7 @@
 
 import bitxon.common.api.model.Account;
 import bitxon.common.api.model.MoneyTransfer;
+import bitxon.common.exception.DirtyTrickException;
 import bitxon.common.exception.ResourceNotFoundException;
 import bitxon.dropwizard.client.exchange.ExchangeClient;
 import bitxon.dropwizard.db.AccountDao;
@@ -82,7 +83,7 @@ public void transfer(@NotNull @Valid MoneyTransfer transfer,
         dao.save(sender);
 
         if (FAIL_TRANSFER.equals(dirtyTrick)) {
-            throw new RuntimeException("Error during money transfer");
+            throw new DirtyTrickException("Error during money transfer");
         }
 
         recipient.setMoneyAmount(recipient.getMoneyAmount() + (int)(transfer.moneyAmount() * exchangeRateValue));

dropwizard-app/src/test/java/bitxon/dropwizard/test/MoneyTransferDropwizardTest.java

@@ -71,7 +71,8 @@ void transferWithServerProblemDuringTransfer() {
         .when()
             .post("/accounts/transfers")
         .then()
-            .statusCode(500);
+            .statusCode(500)
+            .body("errors", hasItem("Dirty Trick: Error during money transfer"));
         //@formatter:on
 
         get("/accounts/" + senderId).then()

micronaut-app/src/main/java/bitxon/micronaut/controller/AccountController.java

@@ -5,6 +5,7 @@
 
 import bitxon.common.api.model.Account;
 import bitxon.common.api.model.MoneyTransfer;
+import bitxon.common.exception.DirtyTrickException;
 import bitxon.common.exception.ResourceNotFoundException;
 import bitxon.micronaut.client.exchange.ExchangeClient;
 import bitxon.micronaut.db.AccountDao;
@@ -82,7 +83,7 @@ public void transfer(@Body @Valid MoneyTransfer transfer,
         dao.save(sender);
 
         if (FAIL_TRANSFER.equals(dirtyTrick)) {
-            throw new RuntimeException("Error during money transfer");
+            throw new DirtyTrickException("Error during money transfer");
         }
 
         recipient.setMoneyAmount(recipient.getMoneyAmount() + (int) (transfer.moneyAmount() * exchangeRateValue));

micronaut-app/src/main/java/bitxon/micronaut/errorhandler/DirtyTrickExceptionHandler.java

@@ -0,0 +1,25 @@
+package bitxon.micronaut.errorhandler;
+
+import bitxon.common.api.model.error.ErrorResponse;
+import bitxon.common.exception.DirtyTrickException;
+import io.micronaut.context.annotation.Requires;
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.HttpResponse;
+import io.micronaut.http.HttpStatus;
+import io.micronaut.http.annotation.Produces;
+import io.micronaut.http.server.exceptions.ExceptionHandler;
+import jakarta.inject.Singleton;
+
+import java.util.List;
+
+@Produces
+@Singleton
+@Requires(classes = {DirtyTrickException.class, ExceptionHandler.class})
+public class DirtyTrickExceptionHandler implements ExceptionHandler<DirtyTrickException, HttpResponse> {
+    @Override
+    public HttpResponse handle(HttpRequest request, DirtyTrickException ex) {
+        return HttpResponse
+            .status(HttpStatus.INTERNAL_SERVER_ERROR)
+            .body(new ErrorResponse(List.of(ex.getMessage())));
+    }
+}

micronaut-app/src/test/java/bitxon/micronaut/test/MoneyTransferMicronautTest.java

@@ -72,7 +72,8 @@ void transferWithServerProblemDuringTransfer() {
         .when()
             .post("/accounts/transfers")
         .then()
-            .statusCode(500);
+            .statusCode(500)
+            .body("errors", hasItem("Dirty Trick: Error during money transfer"));
         //@formatter:on
 
         RestAssured.get("/accounts/" + senderId).then()

quarkus-app/src/main/java/bitxon/quarkus/errorhandler/DirtyTrickExceptionHandler.java

@@ -0,0 +1,20 @@
+package bitxon.quarkus.errorhandler;
+
+import bitxon.common.api.model.error.ErrorResponse;
+import bitxon.common.exception.DirtyTrickException;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.ext.ExceptionMapper;
+import jakarta.ws.rs.ext.Provider;
+
+import java.util.List;
+
+@Provider
+public class DirtyTrickExceptionHandler implements ExceptionMapper<DirtyTrickException> {
+
+    @Override
+    public Response toResponse(DirtyTrickException ex) {
+        return Response
+            .status(500)
+            .entity(new ErrorResponse(List.of(ex.getMessage()))).build();
+    }
+}

quarkus-app/src/main/java/bitxon/quarkus/resource/AccountResource.java

@@ -5,6 +5,7 @@
 
 import bitxon.common.api.model.Account;
 import bitxon.common.api.model.MoneyTransfer;
+import bitxon.common.exception.DirtyTrickException;
 import bitxon.common.exception.ResourceNotFoundException;
 import bitxon.quarkus.client.exchange.ExchangeClient;
 import bitxon.quarkus.db.AccountDao;
@@ -78,7 +79,7 @@ public void transfer(@Valid MoneyTransfer transfer,
         dao.save(sender);
 
         if (FAIL_TRANSFER.equals(dirtyTrick)) {
-            throw new RuntimeException("Error during money transfer");
+            throw new DirtyTrickException("Error during money transfer");
         }
 
         recipient.setMoneyAmount(recipient.getMoneyAmount() + (int)(transfer.moneyAmount() * exchangeRateValue));