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https://issues.apache.org/jira/browse/BEAM-7174?focusedWorklogId=240720&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-240720
]
ASF GitHub Bot logged work on BEAM-7174:
----------------------------------------
Author: ASF GitHub Bot
Created on: 12/May/19 06:37
Start Date: 12/May/19 06:37
Worklog Time Spent: 10m
Work Description: robinyqiu commented on pull request #8425: [BEAM-7174]
Add schema modification transforms
URL: https://github.com/apache/beam/pull/8425#discussion_r281779851
##########
File path:
sdks/java/core/src/main/java/org/apache/beam/sdk/schemas/FieldAccessDescriptor.java
##########
@@ -513,4 +549,22 @@ private static void validateFieldDescriptor(Schema
schema, FieldDescriptor field
}
}
}
+
+ @Override
+ public String toString() {
+ if (getAllFields()) {
+ return "*";
+ }
+
+ List<String> singleSelectors =
+ getFieldsAccessed().stream()
+ .map(FieldDescriptor::getFieldName)
+ .collect(Collectors.toList());
+ List<String> nestedSelectors =
+ getNestedFieldsAccessed().entrySet().stream()
+ .map(e -> e.getKey().getFieldName() + "." +
e.getValue().toString())
Review comment:
If there are multiple sub-descriptors under a same field (e.g. a.b and a.c),
won't this return something like "a.b, c"?
To make the string looks prettier, how about we simply add a bracket around
sub-descriptor if it does not referencesSingleField (i.e. return something like
"a.[b, c]")?
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Issue Time Tracking
-------------------
Worklog Id: (was: 240720)
> Add transforms for modifying schemas
> ------------------------------------
>
> Key: BEAM-7174
> URL: https://issues.apache.org/jira/browse/BEAM-7174
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-java-core
> Reporter: Reuven Lax
> Assignee: Reuven Lax
> Priority: Major
> Time Spent: 50m
> Remaining Estimate: 0h
>
> We need transforms to add fields, remove fields, and rename fields.
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