[doc] translates chinese comment to english. (#1853)

collector/src/main/java/org/apache/hertzbeat/collector/collect/ntp/NtpCollectImpl.java

@@ -74,7 +74,7 @@ public void collect(CollectRep.MetricsData.Builder builder, long monitorId, Stri
 
             timeInfo.computeDetails();
 
-            // 获取ntp服务器信息
+            // Obtain NTP server information
             Map<String, String> resultMap = getNtpInfo(timeInfo);
             resultMap.put(CollectorConstants.RESPONSE_TIME, Long.toString(responseTime));
 

collector/src/main/java/org/apache/hertzbeat/collector/collect/prometheus/PrometheusAutoCollectImpl.java

@@ -102,8 +102,10 @@ public List<CollectRep.MetricsData> collect(CollectRep.MetricsData.Builder build
                 builder.setMsg("StatusCode " + statusCode);
                 return null;
             }
-            // todo 这里直接将InputStream转为了String, 对于prometheus exporter大数据来说, 会生成大对象, 可能会严重影响JVM内存空间
-            // todo 方法一、使用InputStream进行解析, 代码改动大; 方法二、手动触发gc, 可以参考dubbo for long i
+            // todo: The InputStream is directly converted to a String here
+            //       For large data in the Prometheus exporter, this can generate large objects, which could severely impact JVM memory space
+            // todo: Option one: Use InputStream for parsing, but this requires significant code changes
+            //       Option two: Manually trigger garbage collection, which can be referenced from Dubbo for long i
             String resp = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
             long collectTime = System.currentTimeMillis();
             builder.setTime(collectTime);

collector/src/main/java/org/apache/hertzbeat/collector/collect/prometheus/parser/TextParser.java

@@ -156,9 +156,9 @@ private static void readLabelValue(MetricFamily.Metric metric, StrBuffer buffer)
     }
 
     /**
-     * 获取指标的名称
+     * Gets the name of the metric
      *
-     * @param buffer 行数据对象
+     * @param buffer Line data object
      * @return token name
      */
     private static String readTokenAsMetricName(StrBuffer buffer) {
@@ -179,9 +179,9 @@ private static String readTokenAsMetricName(StrBuffer buffer) {
     }
 
     /**
-     * 获取label的名称
+     * Gets the name of the label
      *
-     * @param buffer 行数据对象
+     * @param buffer Line data object
      * @return label name
      */
     private static String readTokenAsLabelName(StrBuffer buffer) {
@@ -204,17 +204,17 @@ private static String readTokenAsLabelName(StrBuffer buffer) {
     }
 
     /**
-     * 获取Label的值
+     * Gets the value of the label
      *
-     * @param buffer 行数据对象
+     * @param buffer Line data object
      * @return label value
      */
     private static String readTokenAsLabelValue(StrBuffer buffer) {
         StringBuilder builder = new StringBuilder();
         boolean escaped = false;
         while (!buffer.isEmpty()) {
             char c = buffer.read();
-            // 处理 '\\' 转义
+            // Handle '\\' escape character
             if (escaped) {
                 switch (c) {
                     case QUOTES, '\\' -> builder.append(c);
@@ -240,47 +240,47 @@ private static String readTokenAsLabelValue(StrBuffer buffer) {
     }
 
     /**
-     * 是否符合metric name首字符规则
+     * Checks if the character complies with the metric name's first character rule
      *
-     * @param c metric字符
+     * @param c Metric character
      * @return true/false
      */
     private static boolean isValidMetricNameStart(char c) {
         return isValidLabelNameStart(c) || c == ':';
     }
 
     /**
-     * 是否符合metric name除首字符其他字符规则
+     * Checks if the character complies with the metric name's non-first character rule
      *
-     * @param c metric字符
+     * @param c Metric character
      * @return true/false
      */
     private static boolean isValidMetricNameContinuation(char c) {
         return isValidLabelNameContinuation(c) || c == ':';
     }
 
     /**
-     * 是否符合label name首字符规则
+     * Checks if the character complies with the label name's first character rule
      *
-     * @param c metric字符
+     * @param c Metric character
      * @return true/false
      */
     private static boolean isValidLabelNameStart(char c) {
         return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
     }
 
     /**
-     * 是否符合label name除首字符其他字符规则
+     * Checks if the character complies with the label name's non-first character rule
      *
-     * @param c metric字符
+     * @param c Metric character
      * @return true/false
      */
     private static boolean isValidLabelNameContinuation(char c) {
         return isValidLabelNameStart(c) || (c >= '0' && c <= '9');
     }
 
     /**
-     * 检测是否是有效的utf8编码的字符串
+     * Checks if a string is valid UTF-8 encoded
      *
      * @param s label value
      * @return true/false

collector/src/main/java/org/apache/hertzbeat/collector/collect/push/PushCollectImpl.java

@@ -60,7 +60,8 @@ public class PushCollectImpl extends AbstractCollect {
 
     private static final Integer SUCCESS_CODE = 200;
 
-    // 第一次采集多久之前的数据，其实没有办法确定，因为无法确定上次何时采集，难以避免重启后重复采集的现象，默认30s
+    // It's hard to determine how long ago the first data collection was, because there's no way to know when the last collection occurred.
+    // This makes it difficult to avoid re-collecting data after a restart. The default is 30 seconds
     private static final Integer firstCollectInterval = 30000;
 
     public PushCollectImpl() {

collector/src/main/java/org/apache/hertzbeat/collector/collect/smtp/SmtpCollectImpl.java

@@ -119,10 +119,10 @@ public String supportProtocol() {
 
     private static Map<String, String> execCmdAndParseResult(SMTP smtp, String cmd, SmtpProtocol smtpProtocol) throws IOException {
         Map<String, String> result = new HashMap<>(8);
-        // 存入smtp连接的响应
+        // Store the response of the SMTP connection
         result.put("smtpBanner", smtp.getReplyString());
         smtp.helo(smtpProtocol.getEmail());
-        // 获取helo的响应
+        // Retrieve the response for the HELO command
         String replyString = smtp.getReplyString();
         result.put("heloInfo", replyString);
         String[] lines = replyString.split("\n");