From a7f4c78cc41a986ce2d8972f0c0214ef41427416 Mon Sep 17 00:00:00 2001
From: pf5ub3a78 <1162620239@qq.com>
Date: Sun, 2 Nov 2025 21:25:03 +0800
Subject: [PATCH] SOA

---
 ServiceInstance.java | 83 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 ServiceInstance.java

diff --git a/ServiceInstance.java b/ServiceInstance.java
new file mode 100644
index 0000000..8bdca23
--- /dev/null
+++ b/ServiceInstance.java
@@ -0,0 +1,83 @@
+package com.soa.microservice.core;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * 服务实例信息类
+ * 用于存储和管理微服务实例的基本信息
+ */
+public class ServiceInstance {
+    private String instanceId;
+    private String serviceName;
+    private String host;
+    private int port;
+    private boolean healthy;
+    private long lastHeartbeat;
+    private Map<String, String> metadata = new ConcurrentHashMap<>();
+
+    public ServiceInstance(String instanceId, String serviceName, String host, int port) {
+        this.instanceId = instanceId;
+        this.serviceName = serviceName;
+        this.host = host;
+        this.port = port;
+        this.healthy = true;
+        this.lastHeartbeat = System.currentTimeMillis();
+    }
+
+    // Getters and setters
+    public String getInstanceId() {
+        return instanceId;
+    }
+
+    public String getServiceName() {
+        return serviceName;
+    }
+
+    public String getHost() {
+        return host;
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public boolean isHealthy() {
+        return healthy;
+    }
+
+    public void setHealthy(boolean healthy) {
+        this.healthy = healthy;
+    }
+
+    public long getLastHeartbeat() {
+        return lastHeartbeat;
+    }
+
+    public void updateHeartbeat() {
+        this.lastHeartbeat = System.currentTimeMillis();
+    }
+
+    public Map<String, String> getMetadata() {
+        return metadata;
+    }
+
+    public void addMetadata(String key, String value) {
+        this.metadata.put(key, value);
+    }
+
+    public String getMetadata(String key) {
+        return this.metadata.get(key);
+    }
+
+    @Override
+    public String toString() {
+        return "ServiceInstance{" +
+                "instanceId='" + instanceId + '\'' +
+                ", serviceName='" + serviceName + '\'' +
+                ", host='" + host + '\'' +
+                ", port=" + port +
+                ", healthy=" + healthy +
+                "}";
+    }
+}
\ No newline at end of file