autumnust commented on a change in pull request #2637: [GOBBLIN-772]Implement
Schema Comparison Strategy during Disctp
URL: https://github.com/apache/incubator-gobblin/pull/2637#discussion_r285198515
##########
File path:
gobblin-data-management/src/main/java/org/apache/gobblin/data/management/copy/extractor/FileAwareInputStreamExtractorWithCheckSchema.java
##########
@@ -39,32 +42,109 @@
* check if the schema matches the expected schema. If not it will abort the
job.
*/
-public class FileAwareInputStreamExtractorWithCheckSchema extends
FileAwareInputStreamExtractor{
+public class FileAwareInputStreamExtractorWithCheckSchema extends
FileAwareInputStreamExtractor {
- public FileAwareInputStreamExtractorWithCheckSchema(FileSystem fs,
CopyableFile file, WorkUnitState state)
- {
+ public FileAwareInputStreamExtractorWithCheckSchema(FileSystem fs,
CopyableFile file, WorkUnitState state) {
super(fs, file, state);
}
- public FileAwareInputStreamExtractorWithCheckSchema(FileSystem fs,
CopyableFile file)
- {
+
+ public FileAwareInputStreamExtractorWithCheckSchema(FileSystem fs,
CopyableFile file) {
this(fs, file, null);
}
@Override
- protected FileAwareInputStream buildStream(FileSystem fsFromFile)
- throws DataRecordException, IOException{
- if(!schemaChecking(fsFromFile))
- {
+ protected FileAwareInputStream buildStream(FileSystem fsFromFile) throws
DataRecordException, IOException {
+ if (!schemaChecking(fsFromFile)) {
throw new DataRecordException("Schema does not match the expected
schema");
}
return super.buildStream(fsFromFile);
}
- protected boolean schemaChecking(FileSystem fsFromFile)
- throws IOException {
+ protected boolean schemaChecking(FileSystem fsFromFile) throws IOException {
Review comment:
What is the scope of this schema checking ? Is this verifying all fields
inside `toValidateSchema` is appearing in expected schema ? Please add javadoc
on this.
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