public void testStructs() throws Exception { File tmp = new File("tmp"); PersistentMap<X> pm = new PersistentMap<X>(new File(tmp, "simple"), X.class); try { X x = new X(); x.abc = "def"; x.def = 5; x.list.add("abc"); assertNull(pm.put("abc", x)); pm.close(); PersistentMap<X> pm2 = new PersistentMap<X>(new File(tmp, "simple"), X.class); X x2 = pm2.get("abc"); assertEquals("def", x2.abc); assertEquals(5, x2.def); pm2.remove("abc"); assertEquals(0, pm2.size()); pm2.close(); } finally { pm.close(); IO.delete(tmp); } }
/** * Queries all persons and shows their names. * * @param conn JDBC connection. * @throws SQLException In case of SQL error. */ private static void queryAllPersons(Connection conn) throws SQLException { Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery("select name from Person"); X.println(">>> All persons:"); while (rs.next()) X.println(">>> " + rs.getString(1)); }
/** * Queries persons older than provided age. * * @param conn JDBC connection. * @param minAge Minimum age. * @throws SQLException In case of SQL error. */ private static void queryPersons(Connection conn, int minAge) throws SQLException { PreparedStatement stmt = conn.prepareStatement("select name, age from Person where age >= ?"); stmt.setInt(1, minAge); ResultSet rs = stmt.executeQuery(); X.println(">>> Persons older than " + minAge + ":"); while (rs.next()) X.println(">>> " + rs.getString("NAME") + " (" + rs.getInt("AGE") + " years old)"); }
/** * Queries persons working in provided organization. * * @param conn JDBC * @param orgName Organization name. * @throws SQLException In case of SQL error. */ private static void queryPersonsInOrganization(Connection conn, String orgName) throws SQLException { PreparedStatement stmt = conn.prepareStatement( "select p.name from Person p, Organization o where p.orgId = o.id and o.name = ?"); stmt.setString(1, orgName); ResultSet rs = stmt.executeQuery(); X.println(">>> Persons working in " + orgName + ":"); while (rs.next()) X.println(">>> " + rs.getString(1)); }
/** * @param log Logger. * @param time Time. * @param msg Message. */ private static void log0(@Nullable IgniteLogger log, long time, String msg) { if (log != null) { if (log.isDebugEnabled()) log.debug(msg); else log.warning(msg); } else X.println( String.format( "[%s][%s]%s", DEBUG_DATE_FMT.get().format(time), Thread.currentThread().getName(), msg)); }
/** * Runs JDBC example. * * @param args Command line arguments. * @throws Exception In case of error. */ public static void main(String[] args) throws Exception { Grid grid = G.start("examples/config/spring-cache.xml"); Connection conn = null; try { // Populate cache with data. populate(grid.cache(CACHE_NAME)); // Register JDBC driver. Class.forName("org.gridgain.jdbc.GridJdbcDriver"); // Open JDBC connection. conn = DriverManager.getConnection("jdbc:gridgain://localhost/" + CACHE_NAME, configuration()); X.println(">>>"); // Query all persons. queryAllPersons(conn); X.println(">>>"); // Query person older than 30 years. queryPersons(conn, 30); X.println(">>>"); // Query persons working in GridGain. queryPersonsInOrganization(conn, "GridGain"); X.println(">>>"); } finally { // Close JDBC connection. if (conn != null) conn.close(); G.stop(true); } }
/** {@inheritDoc} */ @Override public ClusterStartNodeResult call() { JSch ssh = new JSch(); Session ses = null; try { if (spec.key() != null) ssh.addIdentity(spec.key().getAbsolutePath()); ses = ssh.getSession(spec.username(), spec.host(), spec.port()); if (spec.password() != null) ses.setPassword(spec.password()); ses.setConfig("StrictHostKeyChecking", "no"); ses.connect(timeout); boolean win = isWindows(ses); char separator = win ? '\\' : '/'; spec.fixPaths(separator); String igniteHome = spec.igniteHome(); if (igniteHome == null) igniteHome = win ? DFLT_IGNITE_HOME_WIN : DFLT_IGNITE_HOME_LINUX; String script = spec.script(); if (script == null) script = DFLT_SCRIPT_LINUX; String cfg = spec.configuration(); if (cfg == null) cfg = ""; String startNodeCmd; String scriptOutputFileName = FILE_NAME_DATE_FORMAT.format(new Date()) + '-' + UUID.randomUUID().toString().substring(0, 8) + ".log"; if (win) throw new UnsupportedOperationException( "Apache Ignite cannot be auto-started on Windows from IgniteCluster.startNodes(…) API."); else { // Assume Unix. int spaceIdx = script.indexOf(' '); String scriptPath = spaceIdx > -1 ? script.substring(0, spaceIdx) : script; String scriptArgs = spaceIdx > -1 ? script.substring(spaceIdx + 1) : ""; String rmtLogArgs = buildRemoteLogArguments(spec.username(), spec.host()); String tmpDir = env(ses, "$TMPDIR", "/tmp/"); String scriptOutputDir = tmpDir + "ignite-startNodes"; shell(ses, "mkdir " + scriptOutputDir); // Mac os don't support ~ in double quotes. Trying get home path from remote system. if (igniteHome.startsWith("~")) { String homeDir = env(ses, "$HOME", "~"); igniteHome = igniteHome.replaceFirst("~", homeDir); } startNodeCmd = new SB() . // Console output is consumed, started nodes must use Ignite file appenders for log. a("nohup ") .a("\"") .a(igniteHome) .a('/') .a(scriptPath) .a("\"") .a(" ") .a(scriptArgs) .a(!cfg.isEmpty() ? " \"" : "") .a(cfg) .a(!cfg.isEmpty() ? "\"" : "") .a(rmtLogArgs) .a(" > ") .a(scriptOutputDir) .a("/") .a(scriptOutputFileName) .a(" 2>& 1 &") .toString(); } info("Starting remote node with SSH command: " + startNodeCmd, spec.logger(), log); shell(ses, startNodeCmd); return new ClusterStartNodeResultImpl(spec.host(), true, null); } catch (IgniteInterruptedCheckedException e) { return new ClusterStartNodeResultImpl(spec.host(), false, e.getMessage()); } catch (Exception e) { return new ClusterStartNodeResultImpl(spec.host(), false, X.getFullStackTrace(e)); } finally { if (ses != null && ses.isConnected()) ses.disconnect(); } }
/** @throws Exception If failed. */ public void testCompact() throws Exception { File file = new File(UUID.randomUUID().toString()); X.println("file: " + file.getPath()); FileSwapSpaceSpi.SwapFile f = new FileSwapSpaceSpi.SwapFile(file, 8); Random rnd = new Random(); ArrayList<FileSwapSpaceSpi.SwapValue> arr = new ArrayList<>(); int size = 0; for (int a = 0; a < 100; a++) { FileSwapSpaceSpi.SwapValue[] vals = new FileSwapSpaceSpi.SwapValue[1 + rnd.nextInt(10)]; int size0 = 0; for (int i = 0; i < vals.length; i++) { byte[] bytes = new byte[1 + rnd.nextInt(49)]; rnd.nextBytes(bytes); size0 += bytes.length; vals[i] = new FileSwapSpaceSpi.SwapValue(bytes); arr.add(vals[i]); } f.write(new FileSwapSpaceSpi.SwapValues(vals, size0), 1); size += size0; assertEquals(f.length(), size); assertEquals(file.length(), size); } int i = 0; for (FileSwapSpaceSpi.SwapValue val : arr) assertEquals(val.idx(), ++i); i = 0; for (int cnt = arr.size() / 2; i < cnt; i++) { FileSwapSpaceSpi.SwapValue v = arr.remove(rnd.nextInt(arr.size())); assertTrue(f.tryRemove(v.idx(), v)); } int hash0 = 0; for (FileSwapSpaceSpi.SwapValue val : arr) hash0 += Arrays.hashCode(val.readValue(f.readCh)); ArrayList<T2<ByteBuffer, ArrayDeque<FileSwapSpaceSpi.SwapValue>>> bufs = new ArrayList(); for (; ; ) { ArrayDeque<FileSwapSpaceSpi.SwapValue> que = new ArrayDeque<>(); ByteBuffer buf = f.compact(que, 1024); if (buf == null) break; bufs.add(new T2(buf, que)); } f.delete(); int hash1 = 0; for (FileSwapSpaceSpi.SwapValue val : arr) hash1 += Arrays.hashCode(val.value(null)); assertEquals(hash0, hash1); File file0 = new File(UUID.randomUUID().toString()); FileSwapSpaceSpi.SwapFile f0 = new FileSwapSpaceSpi.SwapFile(file0, 8); for (T2<ByteBuffer, ArrayDeque<FileSwapSpaceSpi.SwapValue>> t : bufs) f0.write(t.get2(), t.get1(), 1); int hash2 = 0; for (FileSwapSpaceSpi.SwapValue val : arr) hash2 += Arrays.hashCode(val.readValue(f0.readCh)); assertEquals(hash2, hash1); }