根据时间查询消息

src/main/scala/kafka/console/MessageConsole.scala

@@ -0,0 +1,89 @@
+package kafka.console
+
+import com.xuxd.kafka.console.config.KafkaConfig
+import org.apache.kafka.clients.consumer.{ConsumerConfig, ConsumerRecord}
+import org.apache.kafka.common.TopicPartition
+
+import java.time.Duration
+import java.util
+import java.util.Properties
+import scala.collection.immutable
+import scala.jdk.CollectionConverters.CollectionHasAsScala
+
+/**
+ * kafka-console-ui.
+ *
+ * @author xuxd
+ * @date 2021-12-11 09:39:40
+ * */
+class MessageConsole(config: KafkaConfig) extends KafkaConsole(config: KafkaConfig) with Logging {
+
+    def searchBy(partitions: util.Collection[TopicPartition], startTime: Long, endTime: Long,
+        maxNums: Int): util.List[ConsumerRecord[Array[Byte], Array[Byte]]] = {
+        var startOffTable: immutable.Map[TopicPartition, Long] = Map.empty
+        var endOffTable: immutable.Map[TopicPartition, Long] = Map.empty
+        withAdminClientAndCatchError(admin => {
+            val startTable = KafkaConsole.getLogTimestampOffsets(admin, partitions.asScala.toSeq, startTime, timeoutMs)
+            startOffTable = startTable.map(t2 => (t2._1, t2._2.offset())).toMap
+
+            endOffTable = KafkaConsole.getLogTimestampOffsets(admin, partitions.asScala.toSeq, endTime, timeoutMs)
+                .map(t2 => (t2._1, t2._2.offset())).toMap
+        }, e => {
+            log.error("getLogTimestampOffsets error.", e)
+            throw new RuntimeException("getLogTimestampOffsets error", e)
+        })
+        var terminate: Boolean = (startOffTable == endOffTable)
+        val res = new util.LinkedList[ConsumerRecord[Array[Byte], Array[Byte]]]()
+        // 如果最小和最大偏移一致，就结束
+        if (!terminate) {
+
+            val arrive = new util.HashSet[TopicPartition](partitions)
+            val props = new Properties()
+            props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, "false")
+            withConsumerAndCatchError(consumer => {
+                consumer.assign(partitions)
+                for ((tp, off) <- startOffTable) {
+                    consumer.seek(tp, off)
+                }
+
+                // 终止条件
+                // 1.所有查询分区达都到最大偏移的时候
+                while (!terminate) {
+                    // 达到查询的最大条数
+                    if (res.size() >= maxNums) {
+                        terminate = true
+                    } else {
+                        val records = consumer.poll(Duration.ofMillis(timeoutMs))
+
+                        for ((tp, endOff) <- endOffTable) {
+                            if (!terminate) {
+                                val recordList = records.records(tp)
+                                if (recordList.isEmpty) {
+                                    arrive.remove(tp)
+                                } else {
+                                    val first = recordList.get(0)
+                                    if (first.offset() >= endOff) {
+                                        arrive.remove(tp)
+                                    } else {
+                                        res.addAll(recordList)
+                                        if (recordList.get(recordList.size() - 1).offset() >= endOff) {
+                                            arrive.remove(tp)
+                                        }
+                                    }
+                                }
+
+                                if (arrive.isEmpty) {
+                                    terminate = true;
+                                }
+                            }
+                        }
+                    }
+                }
+            }, e => {
+                log.error("searchBy time error.", e)
+            })
+        }
+
+        res
+    }
+}