adding files 2

payment-service/pom.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.oracle.demo</groupId>
+        <artifactId>kagent-oci-devops-demo</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>payment-service</artifactId>
+    <name>payment-service</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.micrometer</groupId>
+            <artifactId>micrometer-registry-prometheus</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>

payment-service/src/main/java/com/oracle/demo/payment/PaymentServiceApplication.java

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+package com.oracle.demo.payment;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class PaymentServiceApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(PaymentServiceApplication.class, args);
+    }
+}
+

payment-service/src/main/java/com/oracle/demo/payment/api/PaymentController.java

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+package com.oracle.demo.payment.api;
+
+import com.oracle.demo.payment.model.PaymentAuthorizationRequest;
+import com.oracle.demo.payment.model.PaymentAuthorizationResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+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;
+
+@RestController
+@RequestMapping("/api/payments")
+public class PaymentController {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(PaymentController.class);
+
+    private final String manualReviewCardPrefix;
+    private final boolean forceTimeout;
+
+    public PaymentController(
+            @Value("${demo.payment.manual-review-card-prefix:9999}") String manualReviewCardPrefix,
+            @Value("${demo.payment.force-timeout:false}") boolean forceTimeout) {
+        this.manualReviewCardPrefix = manualReviewCardPrefix;
+        this.forceTimeout = forceTimeout;
+    }
+
+    @PostMapping("/authorize")
+    public PaymentAuthorizationResponse authorize(@RequestBody PaymentAuthorizationRequest request) throws InterruptedException {
+        if (forceTimeout) {
+            LOGGER.warn("Payment timeout mode enabled for order {}", request.orderId());
+            Thread.sleep(15000L);
+        }
+
+        if (request.cardToken() != null && request.cardToken().startsWith(manualReviewCardPrefix)) {
+            LOGGER.warn("Payment requires manual review for order {}", request.orderId());
+            return new PaymentAuthorizationResponse(false, "REVIEW_REQUIRED", "Card flagged for manual review.");
+        }
+
+        return new PaymentAuthorizationResponse(true, "APPROVED", "Payment approved.");
+    }
+}
+

payment-service/src/main/java/com/oracle/demo/payment/model/PaymentAuthorizationRequest.java

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+package com.oracle.demo.payment.model;
+
+public record PaymentAuthorizationRequest(String orderId, String cardToken, double amount) {
+}
+

payment-service/src/main/java/com/oracle/demo/payment/model/PaymentAuthorizationResponse.java

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+package com.oracle.demo.payment.model;
+
+public record PaymentAuthorizationResponse(boolean approved, String status, String message) {
+}
+

payment-service/src/main/resources/application.yml

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+spring:
+  application:
+    name: payment-service
+
+server:
+  port: 8082
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info,metrics,prometheus
+  endpoint:
+    health:
+      probes:
+        enabled: true
+
+demo:
+  payment:
+    manual-review-card-prefix: "9999"
+    force-timeout: false