feat: elasticsearch 6.x 示例

Author: dunwu

codes/javadb/elasticsearch/elasticsearch6/pom.xml

@@ -3,7 +3,7 @@
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <parent>o
+  <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.7.7</version>
@@ -42,7 +42,7 @@
     <dependency>
       <groupId>cn.hutool</groupId>
       <artifactId>hutool-all</artifactId>
-      <version>5.8.8</version>
+      <version>5.8.25</version>
     </dependency>
 
     <dependency>

codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/Demo.java

@@ -9,6 +9,7 @@
 import org.elasticsearch.client.RestClientBuilder;
 import org.elasticsearch.client.RestHighLevelClient;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -38,11 +39,13 @@ public static RestClient newRestClient() {
     }
 
     public static RestClient newRestClient(String env) {
-        String hosts = getDefaultEsAddress(env);
-        return newRestClient(toHttpHostList(hosts));
+        String hostsConfig = getDefaultEsAddress(env);
+        List<String> hosts = StrUtil.split(hostsConfig, ",");
+        return newRestClient(hosts);
     }
 
-    public static RestClient newRestClient(HttpHost[] httpHosts) {
+    public static RestClient newRestClient(Collection<String> hosts) {
+        HttpHost[] httpHosts = toHttpHostList(hosts);
         RestClientBuilder builder = getRestClientBuilder(httpHosts);
         if (builder == null) {
             return null;
@@ -62,11 +65,13 @@ public static RestHighLevelClient newRestHighLevelClient() {
     }
 
     public static RestHighLevelClient newRestHighLevelClient(String env) {
-        String hosts = getDefaultEsAddress(env);
-        return newRestHighLevelClient(toHttpHostList(hosts));
+        String hostsConfig = getDefaultEsAddress(env);
+        List<String> hosts = StrUtil.split(hostsConfig, ",");
+        return newRestHighLevelClient(hosts);
     }
 
-    public static RestHighLevelClient newRestHighLevelClient(HttpHost[] httpHosts) {
+    public static RestHighLevelClient newRestHighLevelClient(Collection<String> hosts) {
+        HttpHost[] httpHosts = toHttpHostList(hosts);
         RestClientBuilder builder = getRestClientBuilder(httpHosts);
         if (builder == null) {
             return null;
@@ -86,12 +91,13 @@ public static ElasticsearchTemplate newElasticsearchTemplate() {
     }
 
     public static ElasticsearchTemplate newElasticsearchTemplate(String env) {
-        String hosts = getDefaultEsAddress(env);
-        return newElasticsearchTemplate(toHttpHostList(hosts));
+        String hostsConfig = getDefaultEsAddress(env);
+        List<String> hosts = StrUtil.split(hostsConfig, ",");
+        return newElasticsearchTemplate(hosts);
     }
 
-    public static ElasticsearchTemplate newElasticsearchTemplate(HttpHost[] httpHosts) {
-        RestHighLevelClient client = newRestHighLevelClient(httpHosts);
+    public static ElasticsearchTemplate newElasticsearchTemplate(Collection<String> hosts) {
+        RestHighLevelClient client = newRestHighLevelClient(hosts);
         if (client == null) {
             return null;
         }
@@ -125,21 +131,22 @@ public static RestClientBuilder getRestClientBuilder(HttpHost[] httpHosts) {
         return restClientBuilder;
     }
 
-    private static HttpHost[] toHttpHostList(String hosts) {
-        if (StrUtil.isBlank(hosts)) {
-            return null;
+    private static HttpHost[] toHttpHostList(Collection<String> hosts) {
+        if (CollectionUtil.isEmpty(hosts)) {
+            return new HttpHost[0];
         }
-        List<String> strList = StrUtil.split(hosts, ",");
-        List<HttpHost> list = strList.stream().map(str -> {
-            List<String> params = StrUtil.split(str, ":");
-            return new HttpHost(params.get(0), Integer.parseInt(params.get(1)), "http");
-        }).collect(Collectors.toList());
+        List<HttpHost> list = hosts.stream().map(ElasticsearchFactory::toHttpHost).collect(Collectors.toList());
         if (CollectionUtil.isEmpty(list)) {
             return new HttpHost[0];
         }
         return list.toArray(new HttpHost[0]);
     }
 
+    public static HttpHost toHttpHost(String host) {
+        List<String> params = StrUtil.split(host, ":");
+        return new HttpHost(params.get(0), Integer.parseInt(params.get(1)), "http");
+    }
+
     public static String getDefaultEsAddress() {
         // 从配置中心读取环境变量
         String env = "test";