[TUBEMQ-392] add query rest api for clusters

tubemq-manager/src/main/java/org/apache/tubemq/manager/TubeMQManager.java

@@ -42,7 +42,7 @@ public class TubeMQManager {
     @Value("${manager.async.thread.prefix:AsyncThread-}")
     private String threadPrefix;
 
-    public static void main(String[] args) throws Exception {
+    public static void main(String[] args) {
         SpringApplication.run(TubeMQManager.class);
     }
 

tubemq-manager/src/main/java/org/apache/tubemq/manager/controller/ManagerControllerAdvice.java

@@ -16,9 +16,6 @@
  */
 
 package org.apache.tubemq.manager.controller;
-import javax.servlet.http.HttpServletRequest;
-import org.apache.tubemq.manager.controller.topic.TopicResult;
-import org.apache.tubemq.manager.exceptions.TubeMQManagerException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 
@@ -29,18 +26,16 @@
 public class ManagerControllerAdvice {
 
     /**
-     * handling business TubeMQManagerException, and return json format string.
+     * handling exception, and return json format string.
      *
-     * @param request - http request
-     * @param ex - exception
-     * @return entity
+     * @param ex
+     * @return
      */
-    @ExceptionHandler(TubeMQManagerException.class)
-    public TopicResult handlingBusinessException(HttpServletRequest request,
-            TubeMQManagerException ex) {
-        TopicResult result = new TopicResult();
-        result.setMessage(ex.getMessage());
-        result.setCode(-1);
+    @ExceptionHandler(Exception.class)
+    public TubeResult handlingParameterException(Exception ex) {
+        TubeResult result = new TubeResult();
+        result.setErrMsg(ex.getClass().getName() + " " + ex.getMessage());
+        result.setErrCode(-1);
         return result;
     }
 }

tubemq-manager/src/main/java/org/apache/tubemq/manager/controller/topic/TopicResult.java → tubemq-manager/src/main/java/org/apache/tubemq/manager/controller/TubeResult.java

@@ -14,15 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.tubemq.manager.controller.topic;
+
+package org.apache.tubemq.manager.controller;
 
 import lombok.Data;
 
-/**
- * rest result for business controller
- */
 @Data
-public class TopicResult {
-    private String message;
-    private int code = 0;
+public class TubeResult {
+    private String errMsg;
+    private int errCode = 0;
+    private boolean result = true;
 }

tubemq-manager/src/main/java/org/apache/tubemq/manager/controller/cluster/ClusterController.java

@@ -0,0 +1,100 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tubemq.manager.controller.cluster;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.apache.tubemq.manager.service.TubeHttpConst.SCHEMA;
+
+import com.google.gson.Gson;
+import java.net.URLEncoder;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.util.EntityUtils;
+import org.apache.tubemq.manager.controller.TubeResult;
+import org.apache.tubemq.manager.entry.NodeEntry;
+import org.apache.tubemq.manager.repository.NodeRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping(path = "/v1/cluster")
+@Slf4j
+public class ClusterController {
+
+    private final CloseableHttpClient httpclient = HttpClients.createDefault();
+    private final Gson gson = new Gson();
+
+    private static final String TUBE_REQUEST_PATH = "webapi.htm";
+
+    @Autowired
+    private NodeRepository nodeRepository;
+
+
+    private String covertMapToQueryString(Map<String, String> requestMap) throws Exception {
+        List<String> queryList = new ArrayList<>();
+
+        for (Map.Entry<String, String> entry : requestMap.entrySet()) {
+            queryList.add(entry.getKey() + "=" + URLEncoder.encode(
+                    entry.getValue(), UTF_8.toString()));
+        }
+        return StringUtils.join(queryList, "&");
+    }
+
+    private String queryMaster(String url) {
+        log.info("start to request {}", url);
+        HttpGet httpGet = new HttpGet(url);
+        TubeResult defaultResult = new TubeResult();
+        try (CloseableHttpResponse response = httpclient.execute(httpGet)) {
+            // return result json to response
+            return EntityUtils.toString(response.getEntity());
+        } catch (Exception ex) {
+            log.error("exception caught while requesting broker status", ex);
+            defaultResult.setErrCode(-1);
+            defaultResult.setResult(false);
+            defaultResult.setErrMsg(ex.getMessage());
+        }
+        return gson.toJson(defaultResult);
+    }
+
+    @RequestMapping(value = "/query", method = RequestMethod.GET,
+            produces = MediaType.APPLICATION_JSON_VALUE)
+    public @ResponseBody String queryInfo(
+            @RequestParam Map<String, String> queryBody) throws Exception {
+        int clusterId = Integer.parseInt(queryBody.get("clusterId"));
+        queryBody.remove("clusterId");
+        NodeEntry nodeEntry =
+                nodeRepository.findNodeEntryByClusterIdIsAndMasterIsTrue(clusterId);
+        String url = SCHEMA + nodeEntry.getIp() + ":" + nodeEntry.getWebPort()
+                + "/" + TUBE_REQUEST_PATH + "?" + covertMapToQueryString(queryBody);
+        return queryMaster(url);
+    }
+
+
+}

tubemq-manager/src/main/java/org/apache/tubemq/manager/controller/topic/TopicController.java

@@ -20,6 +20,7 @@
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.tubemq.manager.controller.TubeResult;
 import org.apache.tubemq.manager.entry.TopicEntry;
 import org.apache.tubemq.manager.entry.TopicStatus;
 import org.apache.tubemq.manager.exceptions.TubeMQManagerException;
@@ -53,7 +54,7 @@ public class TopicController {
      * @throws Exception - exception
      */
     @PostMapping("/add")
-    public TopicResult addTopic(@RequestBody TopicEntry entry) {
+    public TubeResult addTopic(@RequestBody TopicEntry entry) {
         // entry in adding status
         entry.setStatus(TopicStatus.ADDING.value());
         topicRepository.saveAndFlush(entry);
@@ -68,7 +69,7 @@ public TopicResult addTopic(@RequestBody TopicEntry entry) {
             }
             topicRepository.saveAndFlush(entry1);
         });
-        return new TopicResult();
+        return new TubeResult();
     }
 
     /**
@@ -78,8 +79,8 @@ public TopicResult addTopic(@RequestBody TopicEntry entry) {
      * @throws Exception
      */
     @PostMapping("/update")
-    public TopicResult updateTopic(@RequestBody TopicEntry entry) {
-        return new TopicResult();
+    public TubeResult updateTopic(@RequestBody TopicEntry entry) {
+        return new TubeResult();
     }
 
     /**
@@ -89,10 +90,10 @@ public TopicResult updateTopic(@RequestBody TopicEntry entry) {
      * @throws Exception
      */
     @GetMapping("/check")
-    public TopicResult checkTopicByBusinessName(
+    public TubeResult checkTopicByBusinessName(
             @RequestParam String businessName) {
         List<TopicEntry> result = topicRepository.findAllByBusinessName(businessName);
-        return new TopicResult();
+        return new TubeResult();
     }
 
     /**
@@ -103,13 +104,13 @@ public TopicResult checkTopicByBusinessName(
      * @throws Exception
      */
     @GetMapping("/get/{id}")
-    public TopicResult getBusinessByID(
+    public TubeResult getBusinessByID(
             @PathVariable Long id) {
         Optional<TopicEntry> businessEntry = topicRepository.findById(id);
-        TopicResult result = new TopicResult();
+        TubeResult result = new TubeResult();
         if (!businessEntry.isPresent()) {
-            result.setCode(-1);
-            result.setMessage("business not found");
+            result.setErrCode(-1);
+            result.setErrMsg("business not found");
         }
         return result;
     }
@@ -119,7 +120,7 @@ public TopicResult getBusinessByID(
      * @return
      */
     @GetMapping("/throwException")
-    public TopicResult throwException() {
+    public TubeResult throwException() {
         throw new TubeMQManagerException("exception for test");
     }
 }

tubemq-manager/src/test/java/org/apache/tubemq/manager/controller/TestBusinessController.java

@@ -20,7 +20,6 @@
 import java.util.Objects;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.tubemq.manager.controller.topic.TopicController;
-import org.apache.tubemq.manager.controller.topic.TopicResult;
 import org.apache.tubemq.manager.entry.TopicEntry;
 import org.junit.Before;
 import org.junit.Test;
@@ -40,6 +39,7 @@
 import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertTrue;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
@@ -82,18 +82,18 @@ public void testAddBusiness() throws Exception {
         HttpHeaders headers = new HttpHeaders();
         HttpEntity<TopicEntry> request = new HttpEntity<>(entry, headers);
 
-        ResponseEntity<TopicResult> responseEntity =
-                client.postForEntity(uri, request, TopicResult.class);
+        ResponseEntity<TubeResult> responseEntity =
+                client.postForEntity(uri, request, TubeResult.class);
         assertThat(responseEntity.getStatusCode().is2xxSuccessful()).isEqualTo(true);
     }
 
     @Test
     public void testControllerException() throws Exception {
         final String baseUrl = "http://localhost:" + randomServerPort + "/business/throwException";
         URI uri = new URI(baseUrl);
-        ResponseEntity<TopicResult> responseEntity =
-                client.getForEntity(uri, TopicResult.class);
-        assertThat(Objects.requireNonNull(responseEntity.getBody()).getCode()).isEqualTo(-1);
-        assertThat(responseEntity.getBody().getMessage()).isEqualTo("exception for test");
+        ResponseEntity<TubeResult> responseEntity =
+                client.getForEntity(uri, TubeResult.class);
+        assertThat(Objects.requireNonNull(responseEntity.getBody()).getErrCode()).isEqualTo(-1);
+        assertTrue(responseEntity.getBody().getErrMsg().contains("exception for test"));
     }
 }