/**
* Load the information in the SnapshotManifest. Called by SnapshotManifest.open()
*
* <p>If the format is v2 and there is no data-manifest, means that we are loading an in-progress
* snapshot. Since we support rolling-upgrades, we loook for v1 and v2 regions format.
*/
private void load() throws IOException {
switch (getSnapshotFormat(desc)) {
case SnapshotManifestV1.DESCRIPTOR_VERSION:
{
this.htd =
FSTableDescriptors.getTableDescriptorFromFs(fs, workingDir).getHTableDescriptor();
ThreadPoolExecutor tpool = createExecutor("SnapshotManifestLoader");
try {
this.regionManifests =
SnapshotManifestV1.loadRegionManifests(conf, tpool, fs, workingDir, desc);
} finally {
tpool.shutdown();
}
break;
}
case SnapshotManifestV2.DESCRIPTOR_VERSION:
{
SnapshotDataManifest dataManifest = readDataManifest();
if (dataManifest != null) {
htd = ProtobufUtil.convertToHTableDesc(dataManifest.getTableSchema());
regionManifests = dataManifest.getRegionManifestsList();
} else {
// Compatibility, load the v1 regions
// This happens only when the snapshot is in-progress and the cache wants to refresh.
List<SnapshotRegionManifest> v1Regions, v2Regions;
ThreadPoolExecutor tpool = createExecutor("SnapshotManifestLoader");
try {
v1Regions = SnapshotManifestV1.loadRegionManifests(conf, tpool, fs, workingDir, desc);
v2Regions = SnapshotManifestV2.loadRegionManifests(conf, tpool, fs, workingDir, desc);
} catch (InvalidProtocolBufferException e) {
throw new CorruptedSnapshotException(
"unable to parse region manifest " + e.getMessage(), e);
} finally {
tpool.shutdown();
}
if (v1Regions != null && v2Regions != null) {
regionManifests =
new ArrayList<SnapshotRegionManifest>(v1Regions.size() + v2Regions.size());
regionManifests.addAll(v1Regions);
regionManifests.addAll(v2Regions);
} else if (v1Regions != null) {
regionManifests = v1Regions;
} else /* if (v2Regions != null) */ {
regionManifests = v2Regions;
}
}
break;
}
default:
throw new CorruptedSnapshotException(
"Invalid Snapshot version: " + desc.getVersion(),
ProtobufUtil.createSnapshotDesc(desc));
}
}
@Override
public void deserializeStateData(final InputStream stream) throws IOException {
super.deserializeStateData(stream);
MasterProcedureProtos.ModifyColumnFamilyStateData modifyCFMsg =
MasterProcedureProtos.ModifyColumnFamilyStateData.parseDelimitedFrom(stream);
user = MasterProcedureUtil.toUserInfo(modifyCFMsg.getUserInfo());
tableName = ProtobufUtil.toTableName(modifyCFMsg.getTableName());
cfDescriptor = ProtobufUtil.convertToHColumnDesc(modifyCFMsg.getColumnfamilySchema());
if (modifyCFMsg.hasUnmodifiedTableSchema()) {
unmodifiedHTableDescriptor =
ProtobufUtil.convertToHTableDesc(modifyCFMsg.getUnmodifiedTableSchema());
}
}