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https://issues.apache.org/jira/browse/GOBBLIN-759?focusedWorklogId=394646&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-394646
]
ASF GitHub Bot logged work on GOBBLIN-759:
------------------------------------------
Author: ASF GitHub Bot
Created on: 28/Feb/20 05:19
Start Date: 28/Feb/20 05:19
Worklog Time Spent: 10m
Work Description: arjun4084346 commented on pull request #2633:
GOBBLIN-759: Added feature to support DistCP to copy files that were …
URL: https://github.com/apache/incubator-gobblin/pull/2633#discussion_r385511737
##########
File path:
gobblin-data-management/src/main/java/org/apache/gobblin/data/management/copy/DateRangeBasedFileFilter.java
##########
@@ -0,0 +1,109 @@
+/*
+ * 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.
+ */
+package org.apache.gobblin.data.management.copy;
+
+import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableList;
+import java.util.Collection;
+import java.util.Iterator;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.gobblin.configuration.ConfigurationKeys;
+import org.apache.hadoop.fs.FileSystem;
+import org.joda.time.DateTime;
+import org.joda.time.DateTimeZone;
+import org.joda.time.Period;
+import org.joda.time.format.PeriodFormatter;
+import org.joda.time.format.PeriodFormatterBuilder;
+
+
+/**
+ * A {@link CopyableFileFilter} that drops a {@link CopyableFile} if file
modification time not within the lookback
+ * window
+ * <code>sourceFs<code>
+ */
+@Slf4j
+public class DateRangeBasedFileFilter implements CopyableFileFilter {
+
+ private Period minLookBackPeriod;
+ private Period maxLookBackPeriod;
+ private String timezone;
+ private DateTime currentTime;
+ private DateTime minLookBackTime;
+ private DateTime maxLookBackTime;
+
+ public static final String CONFIGURATION_KEY_PREFIX =
"gobblin.dataset.filter.";
+ public static final String DEFAULT_DATE_PATTERN_TIMEZONE =
ConfigurationKeys.PST_TIMEZONE_NAME;
+
+ public DateRangeBasedFileFilter(Period minLookback, Period maxLookback,
String timezone) {
+ this.minLookBackPeriod = minLookback;
+ this.maxLookBackPeriod = maxLookback;
+ this.timezone = timezone;
+ this.currentTime = !Strings.isNullOrEmpty(this.timezone) ?
DateTime.now(DateTimeZone.forID(this.timezone))
+ : DateTime.now(DateTimeZone.forID(DEFAULT_DATE_PATTERN_TIMEZONE));
+ this.minLookBackTime = this.currentTime.minus(this.minLookBackPeriod);
+ this.maxLookBackTime = this.currentTime.minus(this.maxLookBackPeriod);
+ }
+
+ /**
+ * For every {@link CopyableFile} in <code>copyableFiles</code> checks if a
+ * {@link CopyableFile#getOrigin()#getPath()#getModificationTime()}
+ * + date between the min and max look back window on <code>sourceFs</code>
{@inheritDoc}
+ *
+ * @see CopyableFileFilter#filter(FileSystem,
+ * FileSystem, Collection)
+ */
+ @Override
+ public Collection<CopyableFile> filter(FileSystem sourceFs, FileSystem
targetFs,
+ Collection<CopyableFile> copyableFiles) {
+ Iterator<CopyableFile> iterator = copyableFiles.iterator();
+
+ ImmutableList.Builder<CopyableFile> filtered = ImmutableList.builder();
+
+ while (iterator.hasNext()) {
+ CopyableFile file = iterator.next();
+ if
(isFileModifiedWithinLookBackPeriod(file.getOrigin().getModificationTime())) {
+ filtered.add(file);
+ }
+ }
+
+ return filtered.build();
+ }
+
+ /**
+ *
+ * @param modTime file modification time in long.
+ * @return <code>true</code> if the file modification time within lookback
window;
+ * <code>false</code> if file modification time not within lookback
window.
+ *
+ */
+ private boolean isFileModifiedWithinLookBackPeriod(long modTime) {
+ DateTime modifiedTime =
+ !Strings.isNullOrEmpty(this.timezone) ? new DateTime(modTime,
DateTimeZone.forID(this.timezone))
+ : new DateTime(modTime,
DateTimeZone.forID(DEFAULT_DATE_PATTERN_TIMEZONE));
Review comment:
I found this more readable
Strings.isNullOrEmpty(this.timezone) ? new DateTime(modTime,
DateTimeZone.forID(DEFAULT_DATE_PATTERN_TIMEZONE)) : new DateTime(modTime,
DateTimeZone.forID(this.timezone))
: ;
just saying :D
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Issue Time Tracking
-------------------
Worklog Id: (was: 394646)
Time Spent: 6.5h (was: 6h 20m)
> DistCP files modified in last n days within a look back period
> --------------------------------------------------------------
>
> Key: GOBBLIN-759
> URL: https://issues.apache.org/jira/browse/GOBBLIN-759
> Project: Apache Gobblin
> Issue Type: Improvement
> Reporter: Karthik Amarnath
> Priority: Major
> Time Spent: 6.5h
> Remaining Estimate: 0h
>
> *Feature Request:*
> # DistCP only the files modified in last n days within the look back window.
> # DistCP will copy only the files modified even when the source file which
> were NOT modified in last n days in the destination directory.
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