feat(pulsar-query): 增加按指定url和topic判断是否匹配的接口

service-forest/src/main/java/com/lanyuanxiaoyao/service/forest/service/PulsarService.java

@@ -36,5 +36,8 @@ public interface PulsarService {
     ImmutableList<PulsarTopic> topics(@Query("name") String name, @Query("namespace") String namespace);
 
     @Get("/backlog")
-    Long backlog(@Query("name") String name, @Query("topic") String topic, @RequestParam("subscription") String subscription);
+    Long backlog(@Query("name") String name, @Query("topic") String topic, @Query("subscription") String subscription);
+
+    @Get("/exists_topic")
+    Boolean existsTopic(@Query("url") String url, @Query("topic") String topic);
 }

service-pulsar-query/src/main/java/com/lanyuanxiaoyao/service/pulsar/PulsarQueryApplication.java

@@ -25,8 +25,10 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.gson.GsonAutoConfiguration;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.retry.annotation.EnableRetry;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
@@ -53,97 +55,6 @@ public class PulsarQueryApplication {
         SpringApplication.run(PulsarQueryApplication.class, args);
     }
 
-    private PulsarInfo getInfo(String name) {
-        if (PulsarInfo.PULSAR_NAME_INFO_MAPPING.containsKey(name)) {
-            return PulsarInfo.PULSAR_NAME_INFO_MAPPING.get(name);
-        }
-        throw new PulsarInfoNotFoundException("Pulsar info not found for " + name);
-    }
-
-    private String adminUrl(PulsarInfo info) {
-        return StrUtil.format("http://{}/admin/v2", info.getAdmin());
-    }
-
-    @RequestMapping("names")
-    public ImmutableList<String> names() {
-        return Lists.immutable.ofAll(PulsarInfo.DEFAULT_INFOS).collect(PulsarInfo::getName);
-    }
-
-    @RequestMapping("name")
-    public String name(@RequestParam("pulsar_url") String pulsarUrl) {
-        String[] urls = pulsarUrl.replaceAll("pulsar://", "").split(",");
-        if (ObjectUtil.isNotEmpty(urls)) {
-            return PulsarInfo.PULSAR_CLIENT_NAME_MAPPING.get(urls[0]);
-        }
-        throw new PulsarInfoNotFoundException("Pulsar name not found for " + pulsarUrl);
-    }
-
-    @RequestMapping("tenants")
-    public ImmutableList<PulsarTenant> tenants(@RequestParam("name") String name) throws PulsarClientException, PulsarAdminException {
-        PulsarInfo info = getInfo(name);
-        try (PulsarAdmin admin = PulsarAdmin.builder()
-                .serviceHttpUrl(adminUrl(info))
-                .build()) {
-            MutableList<PulsarTenant> result = Lists.mutable.empty();
-            for (String tenant : admin.tenants().getTenants()) {
-                result.add(new PulsarTenant(tenant));
-            }
-            return result.toImmutable();
-        }
-    }
-
-    @RequestMapping("namespaces")
-    public ImmutableList<PulsarNamespace> namespaces(@RequestParam("name") String name, @RequestParam("tenant") String tenant) throws PulsarClientException, PulsarAdminException {
-        PulsarInfo info = getInfo(name);
-        try (PulsarAdmin admin = PulsarAdmin.builder()
-                .serviceHttpUrl(adminUrl(info))
-                .build()) {
-            MutableList<PulsarNamespace> result = Lists.mutable.empty();
-            for (String namespace : admin.namespaces().getNamespaces(tenant)) {
-                result.add(new PulsarNamespace(tenant, namespace));
-            }
-            return result.toImmutable();
-        }
-    }
-
-    @RequestMapping("topics")
-    public ImmutableList<PulsarTopic> topics(@RequestParam("name") String name, @RequestParam("namespace") String namespace) throws PulsarClientException, PulsarAdminException {
-        PulsarInfo info = getInfo(name);
-        try (PulsarAdmin admin = PulsarAdmin.builder()
-                .serviceHttpUrl(adminUrl(info))
-                .build()) {
-            MutableList<PulsarTopic> result = Lists.mutable.empty();
-            for (String topic : admin.topics().getList(namespace)) {
-                result.add(convert(admin, topic));
-            }
-            return result.toImmutable();
-        }
-    }
-
-    @RequestMapping("topic")
-    public PulsarTopic topic(@RequestParam("name") String name, @RequestParam("topic") String topic) throws PulsarClientException, PulsarAdminException {
-        PulsarInfo info = getInfo(name);
-        try (PulsarAdmin admin = PulsarAdmin.builder()
-                .serviceHttpUrl(adminUrl(info))
-                .build()) {
-            return convert(admin, topic);
-        }
-    }
-
-    @RequestMapping("backlog")
-    public Long backlog(@RequestParam("name") String name, @RequestParam("topic") String topic, @RequestParam("subscription") String subscription) throws PulsarClientException, PulsarAdminException {
-        PulsarInfo info = getInfo(name);
-        try (PulsarAdmin admin = PulsarAdmin.builder()
-                .serviceHttpUrl(adminUrl(info))
-                .build()) {
-            Map<String, ? extends SubscriptionStats> subscriptions = admin.topics().getStats(topic).getSubscriptions();
-            if (ObjectUtil.isNotNull(subscriptions) && subscriptions.containsKey(subscription)) {
-                return subscriptions.get(subscription).getBacklogSize();
-            }
-            return -1L;
-        }
-    }
-
     private static PulsarTopic convert(PulsarAdmin admin, String topic) throws PulsarAdminException {
         TopicStats stats = admin.topics().getStats(topic);
         MessageId lastMessageId = admin.topics().getLastMessageId(topic);
@@ -264,4 +175,121 @@ public class PulsarQueryApplication {
                 subscriptions
         );
     }
+
+    private PulsarInfo getInfo(String name) {
+        if (PulsarInfo.PULSAR_NAME_INFO_MAPPING.containsKey(name)) {
+            return PulsarInfo.PULSAR_NAME_INFO_MAPPING.get(name);
+        }
+        throw new PulsarInfoNotFoundException("Pulsar info not found for " + name);
+    }
+
+    private String adminUrl(PulsarInfo info) {
+        return StrUtil.format("http://{}/admin/v2", info.getAdmin());
+    }
+
+    @Cacheable(value = "name", sync = true)
+    @GetMapping("names")
+    public ImmutableList<String> names() {
+        return Lists.immutable.ofAll(PulsarInfo.DEFAULT_INFOS).collect(PulsarInfo::getName);
+    }
+
+    @Cacheable(value = "name", sync = true)
+    @GetMapping("name")
+    public String name(@RequestParam("pulsar_url") String pulsarUrl) {
+        String[] urls = pulsarUrl.replaceAll("pulsar://", "").split(",");
+        if (ObjectUtil.isNotEmpty(urls)) {
+            return PulsarInfo.PULSAR_CLIENT_NAME_MAPPING.get(urls[0]);
+        }
+        throw new PulsarInfoNotFoundException("Pulsar name not found for " + pulsarUrl);
+    }
+
+    @Cacheable(value = "tenants", sync = true)
+    @GetMapping("tenants")
+    public ImmutableList<PulsarTenant> tenants(@RequestParam("name") String name) throws PulsarClientException, PulsarAdminException {
+        PulsarInfo info = getInfo(name);
+        try (PulsarAdmin admin = PulsarAdmin.builder()
+                .serviceHttpUrl(adminUrl(info))
+                .build()) {
+            MutableList<PulsarTenant> result = Lists.mutable.empty();
+            for (String tenant : admin.tenants().getTenants()) {
+                result.add(new PulsarTenant(tenant));
+            }
+            return result.toImmutable();
+        }
+    }
+
+    @Cacheable(value = "namespaces", sync = true)
+    @GetMapping("namespaces")
+    public ImmutableList<PulsarNamespace> namespaces(@RequestParam("name") String name, @RequestParam("tenant") String tenant) throws PulsarClientException, PulsarAdminException {
+        PulsarInfo info = getInfo(name);
+        try (PulsarAdmin admin = PulsarAdmin.builder()
+                .serviceHttpUrl(adminUrl(info))
+                .build()) {
+            MutableList<PulsarNamespace> result = Lists.mutable.empty();
+            for (String namespace : admin.namespaces().getNamespaces(tenant)) {
+                result.add(new PulsarNamespace(tenant, namespace));
+            }
+            return result.toImmutable();
+        }
+    }
+
+    @GetMapping("topics")
+    public ImmutableList<PulsarTopic> topics(@RequestParam("name") String name, @RequestParam("namespace") String namespace) throws PulsarClientException, PulsarAdminException {
+        PulsarInfo info = getInfo(name);
+        try (PulsarAdmin admin = PulsarAdmin.builder()
+                .serviceHttpUrl(adminUrl(info))
+                .build()) {
+            MutableList<PulsarTopic> result = Lists.mutable.empty();
+            for (String topic : admin.topics().getList(namespace)) {
+                result.add(convert(admin, topic));
+            }
+            return result.toImmutable();
+        }
+    }
+
+    @Cacheable(value = "topic", sync = true)
+    @GetMapping("topic")
+    public PulsarTopic topic(@RequestParam("name") String name, @RequestParam("topic") String topic) throws PulsarClientException, PulsarAdminException {
+        PulsarInfo info = getInfo(name);
+        try (PulsarAdmin admin = PulsarAdmin.builder()
+                .serviceHttpUrl(adminUrl(info))
+                .build()) {
+            return convert(admin, topic);
+        }
+    }
+
+    @Cacheable(value = "backlog", sync = true)
+    @GetMapping("backlog")
+    public Long backlog(@RequestParam("name") String name, @RequestParam("topic") String topic, @RequestParam("subscription") String subscription) throws PulsarClientException, PulsarAdminException {
+        PulsarInfo info = getInfo(name);
+        try (PulsarAdmin admin = PulsarAdmin.builder()
+                .serviceHttpUrl(adminUrl(info))
+                .build()) {
+            Map<String, ? extends SubscriptionStats> subscriptions = admin.topics().getStats(topic).getSubscriptions();
+            if (ObjectUtil.isNotNull(subscriptions) && subscriptions.containsKey(subscription)) {
+                return subscriptions.get(subscription).getBacklogSize();
+            }
+            return -1L;
+        }
+    }
+
+    @Cacheable(value = "exists-topic", sync = true)
+    @GetMapping("exists_topic")
+    public Boolean existsTopic(@RequestParam("url") String url, @RequestParam("topic") String topic) throws PulsarClientException, PulsarAdminException {
+        try (PulsarAdmin admin = PulsarAdmin.builder()
+                .serviceHttpUrl(url)
+                .build()) {
+            List<String> tenants = admin.tenants().getTenants();
+            for (String tenant : tenants) {
+                List<String> namespaces = admin.namespaces().getNamespaces(tenant);
+                for (String namespace : namespaces) {
+                    List<String> topics = admin.topics().getList(namespace);
+                    if (topics.contains(topic)) {
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
 }