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[flink] Extract RefreshBlacklist from FileStoreLookupFunction
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...nk/paimon-flink-common/src/main/java/org/apache/paimon/flink/lookup/RefreshBlacklist.java
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| /* | ||
| * 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 | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * 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. | ||
| */ | ||
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| package org.apache.paimon.flink.lookup; | ||
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| import org.apache.paimon.utils.DateTimeUtils; | ||
| import org.apache.paimon.utils.Pair; | ||
| import org.apache.paimon.utils.StringUtils; | ||
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| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.time.format.DateTimeParseException; | ||
| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.TimeZone; | ||
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| /** Refresh black list for {@link FileStoreLookupFunction}. */ | ||
| public class RefreshBlacklist { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(RefreshBlacklist.class); | ||
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| private final List<Pair<Long, Long>> timePeriodsBlacklist; | ||
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| private long nextBlacklistCheckTime; | ||
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| public RefreshBlacklist(String blacklist) { | ||
| this.timePeriodsBlacklist = parseTimePeriodsBlacklist(blacklist); | ||
| this.nextBlacklistCheckTime = -1; | ||
| } | ||
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| private List<Pair<Long, Long>> parseTimePeriodsBlacklist(String blacklist) { | ||
| if (StringUtils.isNullOrWhitespaceOnly(blacklist)) { | ||
| return Collections.emptyList(); | ||
| } | ||
| String[] timePeriods = blacklist.split(","); | ||
| List<Pair<Long, Long>> result = new ArrayList<>(); | ||
| for (String period : timePeriods) { | ||
| String[] times = period.split("->"); | ||
| if (times.length != 2) { | ||
| throw new IllegalArgumentException( | ||
| String.format("Incorrect time periods format: [%s].", blacklist)); | ||
| } | ||
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| long left = parseToMillis(times[0]); | ||
| long right = parseToMillis(times[1]); | ||
| if (left > right) { | ||
| throw new IllegalArgumentException( | ||
| String.format("Incorrect time period: [%s->%s].", times[0], times[1])); | ||
| } | ||
| result.add(Pair.of(left, right)); | ||
| } | ||
| return result; | ||
| } | ||
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| private long parseToMillis(String dateTime) { | ||
| try { | ||
| return DateTimeUtils.parseTimestampData(dateTime + ":00", 3, TimeZone.getDefault()) | ||
| .getMillisecond(); | ||
| } catch (DateTimeParseException e) { | ||
| throw new IllegalArgumentException( | ||
| String.format("Date time format error: [%s].", dateTime), e); | ||
| } | ||
| } | ||
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| public boolean canRefresh() { | ||
| long currentTimeMillis = System.currentTimeMillis(); | ||
| if (currentTimeMillis < nextBlacklistCheckTime) { | ||
| return false; | ||
| } | ||
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| Pair<Long, Long> selectedPeriod = null; | ||
| for (Pair<Long, Long> period : timePeriodsBlacklist) { | ||
| if (period.getLeft() <= currentTimeMillis && currentTimeMillis <= period.getRight()) { | ||
| selectedPeriod = period; | ||
| break; | ||
| } | ||
| } | ||
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| if (selectedPeriod != null) { | ||
| LOG.info( | ||
| "Current time {} is in black list {}-{}, so try to refresh cache next time.", | ||
| currentTimeMillis, | ||
| selectedPeriod.getLeft(), | ||
| selectedPeriod.getRight()); | ||
| nextBlacklistCheckTime = selectedPeriod.getRight() + 1; | ||
| return false; | ||
| } | ||
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| return true; | ||
| } | ||
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| public long nextBlacklistCheckTime() { | ||
| return nextBlacklistCheckTime; | ||
| } | ||
| } |