вам придется сложить размер каждого файла cq4
writePosition дает вам длину каждого файла cq4 в байтах
public class Example {
public static void main(String[] args) throws FileNotFoundException {
SingleChronicleQueue q = SingleChronicleQueueBuilder.builder().path("tmp").build();
ExcerptAppender appender = q.createAppender();
try (DocumentContext dc = appender.writingDocument()) {
long l = dc.wire().bytes().writePosition();
dc.wire().write().text("lastx");
}
DumpQueueMain.dump(q.fileAbsolutePath());
}
}
выводит следующее
--- !!meta-data #binary
header: !SCQStore {
writePosition: [
131328,
564049465049088
],
indexing: !SCQSIndexing {
indexCount: !short 8192,
indexSpacing: 64,
index2Index: 184,
lastIndex: 64
}
}
# position: 184, header: -1
--- !!meta-data #binary
index2index: [
# length: 8192, used: 1
65760 # truncated trailing zeros
]
# position: 65760, header: -1
--- !!meta-data #binary
index: [
# length: 8192, used: 1
131328 # truncated trailing zeros
]
# position: 131328, header: 0
--- !!data #binary
"": lastx
...
# 83754737 bytes remaining
--- !!meta-data #binary
header: !STStore {
wireType: !WireType BINARY_LIGHT,
recovery: !TimedStoreRecovery {
timeStamp: 0
},
metadata: !SCQMeta {
roll: !SCQSRoll { length: !int 86400000, format: yyyyMMdd, epoch: 0 },
deltaCheckpointInterval: 64,
sourceId: 0
}
}
# position: 225, header: 0
--- !!data #binary
listing.highestCycle: 17780
# position: 264, header: 1
--- !!data #binary
listing.lowestCycle: 17780
# position: 304, header: 2
--- !!data #binary
listing.modCount: 1
# position: 336, header: 3
--- !!data #binary
chronicle.write.lock: -9223372036854775808
# position: 376, header: 4
--- !!data #binary
chronicle.lastIndexReplicated: -1
# position: 432, header: 5
--- !!data #binary
chronicle.lastAcknowledgedIndexReplicated: -1
...
# 65044 bytes remaining
, когда длина файла .cq4 определяется как
writePosition: [
131328,
....
],
другими словами 131328 байтов