XuQianJin-Stars commented on code in PR #5791:
URL: https://github.com/apache/hudi/pull/5791#discussion_r891896666
##########
hudi-common/src/main/java/org/apache/hudi/internal/schema/io/FileBasedInternalSchemaStorageManager.java:
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@@ -131,6 +131,27 @@ private List<String> getValidInstants() {
.filterCompletedInstants().getInstants().map(f ->
f.getTimestamp()).collect(Collectors.toList());
}
+ /**
+ * Return whether an available historySchema file exist in schema folder or
not.
+ */
+ public boolean isValidHistorySchemaExist() {
+ try {
+ List<String> validateCommits = getValidInstants();
+ FileSystem fs = FSUtils.getFs(baseSchemaPath.toString(), conf);
+ if (fs.exists(baseSchemaPath)) {
+ List<String> validaSchemaFiles =
Arrays.stream(fs.listStatus(baseSchemaPath))
+ .filter(f -> f.isFile() &&
f.getPath().getName().endsWith(SCHEMA_COMMIT_ACTION))
+ .map(file -> file.getPath().getName()).filter(f ->
validateCommits.contains(f.split("\\.")[0])).sorted().collect(Collectors.toList());
Review Comment:
``` .map(file -> file.getPath().getName()).filter(f ->
validateCommits.contains(f.split("\\.")[0])).sorted().collect(Collectors.toList());```
-> ```.map(file -> file.getPath().getName()).filter(f ->
validateCommits.contains(f.split("\\.")[0])).findFirst()``` ?;
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