anoopj commented on code in PR #16408:
URL: https://github.com/apache/iceberg/pull/16408#discussion_r3345522607
##########
core/src/main/java/org/apache/iceberg/ManifestInfoStruct.java:
##########
@@ -252,121 +252,140 @@ public String toString() {
.add("replaced_rows_count", replacedRowsCount)
.add("min_sequence_number", minSequenceNumber)
.add("dv", dv == null ? "null" : "(binary)")
- .add("dv_cardinality", dvCardinality == null ? "null" : dvCardinality)
+ .add("dv_cardinality", dvCardinality)
.toString();
}
static class Builder {
- private int addedFilesCount = -1;
- private int existingFilesCount = -1;
- private int deletedFilesCount = -1;
- private int replacedFilesCount = -1;
- private long addedRowsCount = -1L;
- private long existingRowsCount = -1L;
- private long deletedRowsCount = -1L;
- private long replacedRowsCount = -1L;
- private long minSequenceNumber = -1L;
+ private Integer addedFilesCount = null;
+ private Integer existingFilesCount = null;
+ private Integer deletedFilesCount = null;
+ private Integer replacedFilesCount = null;
+ private Long addedRowsCount = null;
+ private Long existingRowsCount = null;
+ private Long deletedRowsCount = null;
+ private Long replacedRowsCount = null;
+ private Long minSequenceNumber = null;
private byte[] dv = null;
private Long dvCardinality = null;
Builder addedFilesCount(int count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid added files count: %s (must be >= 0)", count);
this.addedFilesCount = count;
return this;
}
Builder existingFilesCount(int count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid existing files count: %s (must be >= 0)",
count);
this.existingFilesCount = count;
return this;
}
Builder deletedFilesCount(int count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid deleted files count: %s (must be >= 0)", count);
this.deletedFilesCount = count;
return this;
}
Builder replacedFilesCount(int count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid replaced files count: %s (must be >= 0)",
count);
this.replacedFilesCount = count;
return this;
}
Builder addedRowsCount(long count) {
+ Preconditions.checkArgument(count >= 0, "Invalid added rows count: %s
(must be >= 0)", count);
this.addedRowsCount = count;
return this;
}
Builder existingRowsCount(long count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid existing rows count: %s (must be >= 0)", count);
this.existingRowsCount = count;
return this;
}
Builder deletedRowsCount(long count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid deleted rows count: %s (must be >= 0)", count);
this.deletedRowsCount = count;
return this;
}
Builder replacedRowsCount(long count) {
+ Preconditions.checkArgument(
+ count >= 0, "Invalid replaced rows count: %s (must be >= 0)", count);
this.replacedRowsCount = count;
return this;
}
Builder minSequenceNumber(long sequenceNumber) {
+ Preconditions.checkArgument(
+ sequenceNumber >= 0, "Invalid min sequence number: %s (must be >=
0)", sequenceNumber);
this.minSequenceNumber = sequenceNumber;
return this;
}
Builder dv(ByteBuffer buffer) {
- this.dv = buffer != null ? ByteBuffers.toByteArray(buffer) : null;
- return this;
- }
-
- Builder dv(byte[] buffer) {
- this.dv = buffer;
+ Preconditions.checkArgument(buffer != null, "Invalid DV: null");
+ this.dv = ByteBuffers.toByteArray(buffer);
return this;
}
- Builder dvCardinality(Long cardinality) {
+ Builder dvCardinality(long cardinality) {
+ Preconditions.checkArgument(
+ cardinality >= 0, "Invalid DV cardinality: %s (must be >= 0)",
cardinality);
this.dvCardinality = cardinality;
return this;
}
ManifestInfoStruct build() {
Preconditions.checkArgument(
- addedFilesCount >= 0, "Invalid added files count: %s (must be >=
0)", addedFilesCount);
+ addedFilesCount != null, "Missing required value: added files
count");
Preconditions.checkArgument(
- existingFilesCount >= 0,
- "Invalid existing files count: %s (must be >= 0)",
- existingFilesCount);
+ existingFilesCount != null, "Missing required value: existing files
count");
Preconditions.checkArgument(
- deletedFilesCount >= 0,
- "Invalid deleted files count: %s (must be >= 0)",
- deletedFilesCount);
+ deletedFilesCount != null, "Missing required value: deleted files
count");
Preconditions.checkArgument(
- replacedFilesCount >= 0,
- "Invalid replaced files count: %s (must be >= 0)",
- replacedFilesCount);
+ replacedFilesCount != null, "Missing required value: replaced files
count");
+ Preconditions.checkArgument(
+ addedRowsCount != null, "Missing required value: added rows count");
+ Preconditions.checkArgument(
+ existingRowsCount != null, "Missing required value: existing rows
count");
+ Preconditions.checkArgument(
+ deletedRowsCount != null, "Missing required value: deleted rows
count");
Preconditions.checkArgument(
- addedRowsCount >= 0, "Invalid added rows count: %s (must be >= 0)",
addedRowsCount);
+ replacedRowsCount != null, "Missing required value: replaced rows
count");
Preconditions.checkArgument(
- existingRowsCount >= 0,
- "Invalid existing rows count: %s (must be >= 0)",
- existingRowsCount);
+ minSequenceNumber != null, "Missing required value: min sequence
number");
Preconditions.checkArgument(
- deletedRowsCount >= 0, "Invalid deleted rows count: %s (must be >=
0)", deletedRowsCount);
+ addedRowsCount == 0 || addedFilesCount > 0,
Review Comment:
The negative values are rejected at the setters (`addedRowsCount(...)`,
`addedFilesCount(...) `) etc. The idea was to reject invalid values as early as
possible, instead of failing `build()`. So the composite check in `build()`
only needs to validate combinations of non-negative values.
> individual validation can also miss some conditions like addedRowsCount >
0 && addedFilesCount == 0
The check `addedRowsCount == 0 || addedFilesCount > 0` will prevent this
case.
Another case is files > 0 and rows = 0. That is a valid scenario (empty data
files were written).
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