[hotfix-1786][chunjun-metrics-prometheus] Fix uploading of startLocation and endLocation metrics to PushGateway (#1894)

Author: Icarus-Alpha

chunjun-metrics/chunjun-metrics-prometheus/src/main/java/com/dtstack/chunjun/metrics/prometheus/PrometheusReport.java

@@ -48,6 +48,8 @@
 
 import java.io.IOException;
 import java.lang.reflect.Field;
+import java.net.MalformedURLException;
+import java.net.URL;
 import java.util.AbstractMap;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -70,6 +72,8 @@ public class PrometheusReport extends CustomReporter {
 
     private Configuration configuration;
 
+    // 如果是 Flink1.16 或更高版本，PrometheusPushGateway 主机名和端口号的配置项变成了 metrics.reporter.promgateway.hostUrl
+    private static final String KEY_HOST_URL = "metrics.reporter.promgateway.hostUrl";
     private static final String KEY_HOST = "metrics.reporter.promgateway.host";
     private static final String KEY_PORT = "metrics.reporter.promgateway.port";
     private static final String KEY_JOB_NAME = "metrics.reporter.promgateway.jobName";
@@ -79,7 +83,7 @@ public class PrometheusReport extends CustomReporter {
             "metrics.reporter.promgateway.deleteOnShutdown";
 
     private static final char SCOPE_SEPARATOR = '_';
-    private static final String SCOPE_PREFIX = "org/apache/flink" + SCOPE_SEPARATOR;
+    private static final String SCOPE_PREFIX = "flink" + SCOPE_SEPARATOR;
 
     private final Map<String, AbstractMap.SimpleImmutableEntry<Collector, Integer>>
             collectorsWithCountByMetricName = new HashMap<>();
@@ -107,8 +111,22 @@ private void initConfiguration() {
 
     @Override
     public void open() {
+        // 尝试从新的配置项读取，如果未配置则使用旧的配置项
+        String hostUrl = configuration.getString(KEY_HOST_URL, "");
         String host = configuration.getString(KEY_HOST, null);
         int port = configuration.getInteger(KEY_PORT, 0);
+        // 解析 hostUrl 如果有
+        if (!StringUtils.isNullOrWhitespaceOnly(hostUrl)) {
+            try {
+                URL url = new URL(hostUrl);
+                host = url.getHost();
+                port = url.getPort();
+            } catch (MalformedURLException e) {
+                log.error("Error parsing Prometheus PushGateway URL: {}", hostUrl, e);
+                return; // URL 格式错误则终止执行
+            }
+        }
+
         String configuredJobName = configuration.getString(KEY_JOB_NAME, "jiangboJob");
         boolean randomSuffix = configuration.getBoolean(KEY_RANDOM_JOB_NAME_SUFFIX, false);
         deleteOnShutdown = configuration.getBoolean(KEY_DELETE_ON_SHUTDOWN, true);