@Override public void abort() { try { close(); } catch (final IOException ex) { Util.debug(ex); } if (meta != null) DropDB.drop(meta.name, sopts); }
@Override public DiskData build() throws IOException { meta.assign(parser); meta.dirty = true; // calculate optimized output buffer sizes to reduce disk fragmentation final Runtime rt = Runtime.getRuntime(); final long max = Math.min(1 << 22, rt.maxMemory() - rt.freeMemory() >> 2); int bs = (int) Math.min(meta.filesize, max); bs = Math.max(IO.BLOCKSIZE, bs - bs % IO.BLOCKSIZE); // drop old database (if available) and create new one DropDB.drop(dbname, sopts); sopts.dbpath(dbname).md(); elemNames = new Names(meta); attrNames = new Names(meta); try { tout = new DataOutput(new TableOutput(meta, DATATBL)); xout = new DataOutput(meta.dbfile(DATATXT), bs); vout = new DataOutput(meta.dbfile(DATAATV), bs); sout = new DataOutput(meta.dbfile(DATATMP), bs); final Performance perf = Prop.debug ? new Performance() : null; Util.debug(tit() + DOTS); parse(); if (Prop.debug) Util.errln(" " + perf + " (" + Performance.getMemory() + ')'); } catch (final IOException ex) { try { close(); } catch (final IOException ignored) { } throw ex; } close(); // copy temporary values into database table try (final DataInput in = new DataInput(meta.dbfile(DATATMP))) { final TableAccess ta = new TableDiskAccess(meta, true); for (; spos < ssize; ++spos) ta.write4(in.readNum(), 8, in.readNum()); ta.close(); } meta.dbfile(DATATMP).delete(); // return database instance return new DiskData(meta, elemNames, attrNames, path, ns); }