flyrain commented on a change in pull request #4142:
URL: https://github.com/apache/iceberg/pull/4142#discussion_r814170215
##########
File path: core/src/main/java/org/apache/iceberg/ReachableFileUtil.java
##########
@@ -114,4 +119,54 @@ private static TableMetadata
findFirstExistentPreviousMetadata(List<MetadataLogE
}
return manifestListLocations;
}
+
+ /**
+ * Emits a human-readable metadata graph of the Iceberg table's current
snapshot
+ * @param table Iceberg table
+ * @param out output stream to emit to
+ */
+ public static void printTable(Table table, PrintStream out) {
+
out.println("------------------------------------------------------------");
+ out.println("Table " + table.name());
+
out.println("------------------------------------------------------------");
+ printSnapshot(table, table.currentSnapshot(), out);
+ }
+
+ /**
+ * Emits a human-readable metadata graph of the given snapshot
+ * @param table Iceberg table
+ * @param snapshot Iceberg table snapshot
+ * @param out output print stream to emit to
+ */
+ public static void printSnapshot(Table table, Snapshot snapshot, PrintStream
out) {
+ out.println(snapshot);
+ Iterator<ManifestFile> allManifests = snapshot.allManifests().iterator();
+ while (allManifests.hasNext()) {
+ ManifestFile mf = allManifests.next();
+ out.println(" \\---" + mf);
+
+ if (mf.content().equals(ManifestContent.DATA)) {
Review comment:
Can we create a new read method which take `FileType` as a parameter? So
that we don't have to distinguish datafile and deletefile.
```
ManifestFiles.read(ManifestFile manifest, FileIO io, Map<Integer,
PartitionSpec> specsById, FileType fileType)
```
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