/**
* Closes Stream manager
*
* @throws IOException If an IO Error occurs
*/
public void close() throws IOException {
if (mData != null) {
mData.close();
}
if (mPointers != null) {
mPointers.close();
}
}
protected void ensureFiles() throws IOException {
if (mData.currentFileNo() != mIndexedSequenceFileNumber) {
if (!mData.openDataFile(mIndexedSequenceFileNumber)) {
throw new CorruptSdfException("Expected file missing");
}
// we don't do funny things with pointer file
}
}
protected void openFiles() throws IOException {
if (!mPointers.openDataFile(mIndexedSequenceFileNumber)) {
throw new CorruptSdfException("Expected file missing");
}
if (!mData.openDataFile(mIndexedSequenceFileNumber)) {
throw new CorruptSdfException("Expected file missing");
}
}
@Override
public void store(Snapshot snapshot) {
logger.debug("store(): snapshot={}", snapshot);
String spansBlockId = null;
CharSource spans = snapshot.getSpans();
if (spans != null) {
spansBlockId = rollingFile.write(spans).getId();
}
String coarseMergedStackTreeBlockId = null;
CharSource coarseMergedStackTree = snapshot.getCoarseMergedStackTree();
if (coarseMergedStackTree != null) {
coarseMergedStackTreeBlockId = rollingFile.write(coarseMergedStackTree).getId();
}
String fineMergedStackTreeBlockId = null;
CharSource fineMergedStackTree = snapshot.getFineMergedStackTree();
if (fineMergedStackTree != null) {
fineMergedStackTreeBlockId = rollingFile.write(fineMergedStackTree).getId();
}
try {
dataSource.update(
"merge into snapshot (id, stuck, start_time, capture_time, duration,"
+ " background, error, fine, grouping, error_message, user, attributes,"
+ " metrics, jvm_info, spans, coarse_merged_stack_tree,"
+ " fine_merged_stack_tree) values (?, ?, ?, ?, ?,"
+ " ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
snapshot.getId(),
snapshot.isStuck(),
snapshot.getStartTime(),
snapshot.getCaptureTime(),
snapshot.getDuration(),
snapshot.isBackground(),
snapshot.getError() != null,
fineMergedStackTreeBlockId != null,
snapshot.getGrouping(),
snapshot.getError(),
snapshot.getUser(),
snapshot.getAttributes(),
snapshot.getMetrics(),
snapshot.getJvmInfo(),
spansBlockId,
coarseMergedStackTreeBlockId,
fineMergedStackTreeBlockId);
} catch (SQLException e) {
logger.error(e.getMessage(), e);
}
}
/**
* Returns the random access file pointing at the last seek position
*
* @return the file handle
*/
public SeekableStream getData() {
return mData.randomAccessFile();
}
