[
https://issues.apache.org/jira/browse/HADOOP-15891?focusedWorklogId=479387&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-479387
]
ASF GitHub Bot logged work on HADOOP-15891:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 06/Sep/20 02:53
Start Date: 06/Sep/20 02:53
Worklog Time Spent: 10m
Work Description: JohnZZGithub commented on a change in pull request
#2185:
URL: https://github.com/apache/hadoop/pull/2185#discussion_r484013414
##########
File path:
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/TestRegexMountPointResolvedDstPathReplaceInterceptor.java
##########
@@ -0,0 +1,104 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.hadoop.fs.viewfs;
+
+import java.io.IOException;
+
+import org.apache.hadoop.fs.Path;
+import org.junit.Assert;
+import org.junit.Test;
+
+import static
org.apache.hadoop.fs.viewfs.RegexMountPointInterceptorType.REPLACE_RESOLVED_DST_PATH;
+
+/**
+ * Test RegexMountPointResolvedDstPathReplaceInterceptor.
+ */
+public class TestRegexMountPointResolvedDstPathReplaceInterceptor {
+
+ public String createSerializedString(String regex, String replaceString) {
+ return REPLACE_RESOLVED_DST_PATH.getConfigName()
+ + RegexMountPoint.INTERCEPTOR_INTERNAL_SEP + regex
+ + RegexMountPoint.INTERCEPTOR_INTERNAL_SEP + replaceString;
+ }
+
+ @Test
+ public void testDeserializeFromStringNormalCase() throws IOException {
+ String srcRegex = "-";
+ String replaceString = "_";
+ String serializedString = createSerializedString(srcRegex, replaceString);
+ RegexMountPointResolvedDstPathReplaceInterceptor interceptor =
+ RegexMountPointResolvedDstPathReplaceInterceptor
+ .deserializeFromString(serializedString);
+ Assert.assertTrue(interceptor.getSrcRegexString().equals(srcRegex));
+ Assert.assertTrue(interceptor.getReplaceString().equals(replaceString));
+ Assert.assertTrue(interceptor.getSrcRegexPattern() == null);
+ interceptor.initialize();
+ Assert.assertTrue(
+ interceptor.getSrcRegexPattern().toString().equals(srcRegex));
+ }
+
+ @Test
+ public void testDeserializeFromStringBadCase() throws IOException {
+ String srcRegex = "-";
+ String replaceString = "_";
+ String serializedString = createSerializedString(srcRegex, replaceString);
+ serializedString = serializedString + ":ddd";
+ RegexMountPointResolvedDstPathReplaceInterceptor interceptor =
+ RegexMountPointResolvedDstPathReplaceInterceptor
+ .deserializeFromString(serializedString);
+ Assert.assertEquals(interceptor, null);
+ }
+
+ @Test
+ public void testSerialization() {
+ String srcRegex = "word1";
+ String replaceString = "word2";
+ String serializedString = createSerializedString(srcRegex, replaceString);
+ RegexMountPointResolvedDstPathReplaceInterceptor interceptor =
+ new RegexMountPointResolvedDstPathReplaceInterceptor(srcRegex,
+ replaceString);
+ Assert.assertEquals(interceptor.serializeToString(), serializedString);
+ }
+
+ @Test
Review comment:
Ah, gotcha. I thought the comment was for testSerialization().
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Issue Time Tracking
-------------------
Worklog Id: (was: 479387)
Time Spent: 3h 50m (was: 3h 40m)
> Provide Regex Based Mount Point In Inode Tree
> ---------------------------------------------
>
> Key: HADOOP-15891
> URL: https://issues.apache.org/jira/browse/HADOOP-15891
> Project: Hadoop Common
> Issue Type: New Feature
> Components: viewfs
> Reporter: zhenzhao wang
> Assignee: zhenzhao wang
> Priority: Major
> Labels: pull-request-available
> Attachments: HADOOP-15891.015.patch, HDFS-13948.001.patch,
> HDFS-13948.002.patch, HDFS-13948.003.patch, HDFS-13948.004.patch,
> HDFS-13948.005.patch, HDFS-13948.006.patch, HDFS-13948.007.patch,
> HDFS-13948.008.patch, HDFS-13948.009.patch, HDFS-13948.011.patch,
> HDFS-13948.012.patch, HDFS-13948.013.patch, HDFS-13948.014.patch, HDFS-13948_
> Regex Link Type In Mont Table-V0.pdf, HDFS-13948_ Regex Link Type In Mount
> Table-v1.pdf
>
> Time Spent: 3h 50m
> Remaining Estimate: 0h
>
> This jira is created to support regex based mount point in Inode Tree. We
> noticed that mount point only support fixed target path. However, we might
> have user cases when target needs to refer some fields from source. e.g. We
> might want a mapping of /cluster1/user1 => /cluster1-dc1/user-nn-user1, we
> want to refer `cluster` and `user` field in source to construct target. It's
> impossible to archive this with current link type. Though we could set
> one-to-one mapping, the mount table would become bloated if we have thousands
> of users. Besides, a regex mapping would empower us more flexibility. So we
> are going to build a regex based mount point which target could refer groups
> from src regex mapping.
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