@Override public Item item(final QueryContext qc, final InputInfo ii) throws QueryException { final Data data = checkData(qc); final String path = path(1, qc); final Item item = toItem(exprs[2], qc); final Options opts = toOptions(3, Q_OPTIONS, new Options(), qc); final Updates updates = qc.resources.updates(); final IntList docs = data.resources.docs(path); int d = 0; // delete binary resources final IOFile bin = data.meta.binary(path); if (bin == null || bin.isDir()) throw BXDB_REPLACE_X.get(info, path); if (item instanceof Bin) { updates.add(new DBStore(data, path, item, info), qc); } else { if (bin.exists()) updates.add(new DBDelete(data, path, info), qc); final NewInput input = checkInput(item, token(path)); if (docs.isEmpty() || docs.get(0) == 0) { // no replacement of first document (because of TableDiskAccess#insert, used > 0, pre = 0) updates.add(new DBAdd(data, input, opts, qc, info), qc); } else { updates.add(new ReplaceDoc(docs.get(0), data, input, opts, qc, info), qc); d = 1; } } // delete old documents final int ds = docs.size(); for (; d < ds; d++) updates.add(new DeleteNode(docs.get(d), data, info), qc); return null; }
/** * Returns a list of all databases. * * @param ctx database context * @return list of databases */ public static StringList list(final Context ctx) { final StringList db = new StringList(); for (final IOFile f : ctx.mprop.dbpath().children()) { final String name = f.name(); if (f.isDir() && !name.startsWith(".")) db.add(name); } return db.sort(false); }
@Override public Item item(final QueryContext qc, final InputInfo ii) throws QueryException { final Data data = checkData(qc); final String path = path(1, qc); if (data.inMemory()) return Bln.FALSE; final IOFile io = data.meta.binary(path); return Bln.get(io.exists() && !io.isDir()); }
@Override protected boolean run() throws IOException { final String path = MetaData.normPath(args[0]); if (path == null) return error(NAME_INVALID_X, args[0]); final IOFile bin = context.data().meta.binary(path); if (bin == null || !bin.exists() || bin.isDir()) return error(RES_NOT_FOUND_X, path); try { final BufferInput bi = new BufferInput(bin); try { for (int b; (b = bi.read()) != -1; ) out.write(b); } finally { bi.close(); } return info(QUERY_EXECUTED_X, perf); } catch (final IOException ex) { return error(FILE_NOT_STORED_X, ex); } }
@Override protected boolean run() { final boolean create = context.user.has(Perm.CREATE); String path = MetaData.normPath(args[0]); if (path == null || path.endsWith(".")) return error(NAME_INVALID_X, args[0]); if (in == null) { final IO io = IO.get(args[1]); if (!io.exists() || io.isDir()) return error(RES_NOT_FOUND_X, create ? io : args[1]); in = io.inputSource(); // set/add name of document if ((path.isEmpty() || path.endsWith("/")) && !(io instanceof IOContent)) path += io.name(); } // ensure that the final name is not empty if (path.isEmpty()) return error(NAME_INVALID_X, path); // ensure that the name is not empty and contains no trailing dots final Data data = context.data(); if (data.inMemory()) return error(NO_MAINMEM); final IOFile file = data.meta.binary(path); if (path.isEmpty() || path.endsWith(".") || file == null || file.isDir()) return error(NAME_INVALID_X, create ? path : args[0]); // start update if (!data.startUpdate()) return error(DB_PINNED_X, data.meta.name); try { store(in, file); return info(QUERY_EXECUTED_X_X, "", perf); } catch (final IOException ex) { return error(FILE_NOT_STORED_X, Util.message(ex)); } finally { data.finishUpdate(); } }