@Override public CloseableIterator<ReadItem, DurableDataLogException> getReader() throws DurableDataLogException { return new LogReader(this.logMetadata, DebugLogWrapper.this.bkClient, DebugLogWrapper.this.config); }
@Override public DurableDataLog.ReadItem getNext() throws DurableDataLogException { Exceptions.checkNotClosed(this.closed.get(), this); if (this.currentLedger == null) { // First time we call this. Locate the first ledger based on the metadata truncation address. We don't know // how many entries are in that first ledger, so open it anyway so we can figure out. openNextLedger(this.metadata.getNextAddress(this.metadata.getTruncationAddress(), Long.MAX_VALUE)); } while (this.currentLedger != null && (!this.currentLedger.canRead())) { // We have reached the end of the current ledger. Find next one, and skip over empty ledgers). val lastAddress = new LedgerAddress(this.currentLedger.metadata, this.currentLedger.handle.getLastAddConfirmed()); Ledgers.close(this.currentLedger.handle); openNextLedger(this.metadata.getNextAddress(lastAddress, this.currentLedger.handle.getLastAddConfirmed())); } // Try to read from the current reader. if (this.currentLedger == null || this.currentLedger.reader == null) { return null; } return new LogReader.ReadItem(this.currentLedger.reader.nextElement(), this.currentLedger.metadata); }
@Override public CloseableIterator<ReadItem, DurableDataLogException> getReader() throws DurableDataLogException { ensurePreconditions(); return new LogReader(getLogMetadata(), this.bookKeeper, this.config); }