List of usage examples for java.util.prefs Preferences keys
public abstract String[] keys() throws BackingStoreException;
From source file:org.rhq.enterprise.server.agent.EmbeddedAgentBootstrapService.java
public Properties getAgentConfiguration() { try {//from w w w .j av a 2 s . c om Properties properties = new Properties(); Preferences prefs = getPreferencesNode(); for (String key : prefs.keys()) { properties.setProperty(key, prefs.get(key, "?")); } return properties; } catch (Exception e) { throw new RuntimeException(e); } }
From source file:edu.umass.cs.msocket.proxy.console.ConsoleModule.java
private History loadHistory() { jline.History jHistory = new jline.History(); try {//w w w . j a va 2 s .co m Preferences prefs = Preferences.userRoot().node(this.getClass().getName()); String[] historyKeys = prefs.keys(); Arrays.sort(historyKeys, 0, historyKeys.length); for (int i = 0; i < historyKeys.length; i++) { String key = historyKeys[i]; String value = prefs.get(key, ""); //$NON-NLS-1$ jHistory.addToHistory(value); } } catch (Exception e) { // unable to load prefs: do nothing } return jHistory; }
From source file:com.adito.jdbc.DBUpgrader.java
/** * Check the database schema and perform any upgrades. * // ww w . j av a2 s . c o m * @throws Exception on any error */ public void upgrade() throws Exception { Properties versions = null; if (versionsFile == null) { /* If required, convert from the old preferences node to the new * file (version 0.2.5) */ versionsFile = new File(ContextHolder.getContext().getDBDirectory(), "versions.log"); Preferences p = ContextHolder.getContext().getPreferences().node("dbupgrader"); if (p.nodeExists("currentDataVersion")) { log.warn("Migrating database versions from preferences to properties file in " + ContextHolder.getContext().getDBDirectory().getAbsolutePath() + "."); versions = new Properties(); p = p.node("currentDataVersion"); String[] c = p.keys(); for (int i = 0; i < c.length; i++) { versions.put(c[i], p.get(c[i], "")); } FileOutputStream fos = new FileOutputStream(versionsFile); try { versions.store(fos, "Database versions"); } finally { Util.closeStream(fos); } p.removeNode(); } } // Load the database versions if (versions == null) { versions = new Properties(); if (versionsFile.exists()) { FileInputStream fin = new FileInputStream(versionsFile); try { versions.load(fin); } finally { Util.closeStream(fin); } } } try { String dbCheckName = useDbNameForVersionCheck ? engine.getDatabase() : engine.getAlias(); if ((!engine.isDatabaseExists() || removed.containsKey(engine.getDatabase())) && !removeProcessed.containsKey(dbCheckName)) { versions.remove(dbCheckName); removeProcessed.put(dbCheckName, Boolean.TRUE); if (log.isInfoEnabled()) log.info("Database for " + dbCheckName + " (" + engine.getDatabase() + ") has been removed, assuming this is a re-install."); removed.put(engine.getDatabase(), Boolean.TRUE); } // Check for any SQL scripts to run to bring the databases up to // date VersionInfo.Version currentDataVersion = new VersionInfo.Version( versions.getProperty(dbCheckName, "0.0.0")); if (log.isInfoEnabled()) { log.info("New logical database version for " + engine.getAlias() + " is " + newDbVersion); log.info("Current logical database version for " + engine.getAlias() + " is " + currentDataVersion); // log.info("Upgrade script directory is " + upgradeDir.getAbsolutePath()); } List upgrades = getSortedUpgrades(upgradeDir); File oldLog = new File(upgradeDir, "upgrade.log"); if (!dbDir.exists()) { if (!dbDir.mkdirs()) { throw new Exception("Failed to create database directory " + dbDir.getAbsolutePath()); } } File logFile = new File(dbDir, "upgrade.log"); if (oldLog.exists()) { if (log.isInfoEnabled()) log.info( "Moving upgrade.log to new location (as of version 0.1.5 it resides in the db directory."); if (!oldLog.renameTo(logFile)) { throw new Exception("Failed to move upgrade log file from " + oldLog.getAbsolutePath() + " to " + logFile.getAbsolutePath()); } } HashMap completedUpgrades = new HashMap(); if (!logFile.exists()) { OutputStream out = null; try { out = new FileOutputStream(logFile); PrintWriter writer = new PrintWriter(out, true); writer.println("# This file contains a list of database upgrades"); writer.println("# that have completed correctly."); } finally { if (out != null) { out.flush(); out.close(); } } } else { InputStream in = null; try { in = new FileInputStream(logFile); BufferedReader reader = new BufferedReader(new InputStreamReader(in)); String line = null; while ((line = reader.readLine()) != null) { line = line.trim(); if (!line.equals("") && !line.startsWith("#")) { completedUpgrades.put(line, line); } } } finally { if (in != null) { in.close(); } } } OutputStream out = null; try { out = new FileOutputStream(logFile, true); PrintWriter writer = new PrintWriter(out, true); Class.forName("org.hsqldb.jdbcDriver"); // shouldnt be needed, // but // just in // case for (Iterator i = upgrades.iterator(); i.hasNext();) { DBUpgradeOp upgrade = (DBUpgradeOp) i.next(); boolean runBefore = completedUpgrades.containsKey(upgrade.getFile().getName()); if (log.isInfoEnabled()) log.info("Checking if upgrade " + upgrade.getFile() + " [" + upgrade.getVersion() + "] needs to be run. Run before = " + runBefore + ". Current data version = " + currentDataVersion + ", upgrade version = " + upgrade.getVersion()); if ((!runBefore || (currentDataVersion.getMajor() == 0 && currentDataVersion.getMinor() == 0 && currentDataVersion.getBuild() == 0)) && upgrade.getVersion().compareTo(currentDataVersion) >= 0 && upgrade.getVersion().compareTo(newDbVersion) < 0) { if (log.isInfoEnabled()) log.info("Running script " + upgrade.getName() + " [" + upgrade.getVersion() + "] on database " + engine.getDatabase()); // Get a JDBC connection JDBCConnectionImpl conx = engine.aquireConnection(); try { runSQLScript(conx, upgrade.getFile()); completedUpgrades.put(upgrade.getFile().getName(), upgrade.getFile().getName()); writer.println(upgrade.getFile().getName()); } finally { engine.releaseConnection(conx); } } } versions.put(dbCheckName, newDbVersion.toString()); if (log.isInfoEnabled()) log.info("Logical database " + engine.getAlias() + " (" + engine.getDatabase() + ") is now at version " + newDbVersion); } finally { if (out != null) { out.flush(); out.close(); } } } finally { FileOutputStream fos = new FileOutputStream(versionsFile); try { versions.store(fos, "Database versions"); } finally { Util.closeStream(fos); } } }
From source file:org.rhq.server.control.command.AbstractInstall.java
private void clearAgentPreferences() throws Exception { log.info("Removing any existing agent preferences from default preference node"); // remove everything EXCEPT the security token Preferences agentPrefs = getAgentPreferences(); String[] prefKeys = null;/*w ww. j a va 2 s . co m*/ try { prefKeys = agentPrefs.keys(); } catch (Exception e) { log.warn("Failed to get agent preferences - cannot clear them: " + e); } if (prefKeys != null && prefKeys.length > 0) { for (String prefKey : prefKeys) { if (!prefKey.equals(PREF_RHQ_AGENT_SECURITY_TOKEN)) { agentPrefs.remove(prefKey); } } agentPrefs.flush(); Preferences.userRoot().sync(); } }
From source file:net.sf.jabref.JabRefPreferences.java
/** * Fetches key patterns from preferences. * The implementation doesn't cache the results * * @return LabelPattern containing all keys. Returned LabelPattern has no parent */// w ww. j a va 2 s.co m public GlobalLabelPattern getKeyPattern() { keyPattern = new GlobalLabelPattern(); Preferences pre = Preferences.userNodeForPackage(GlobalLabelPattern.class); try { String[] keys = pre.keys(); if (keys.length > 0) { for (String key : keys) { keyPattern.addLabelPattern(key, pre.get(key, null)); } } } catch (BackingStoreException ex) { LOGGER.info("BackingStoreException in JabRefPreferences.getKeyPattern", ex); } return keyPattern; }
From source file:com.adito.server.DefaultAditoServerFactory.java
void copyNode(Preferences from, Preferences to) throws BackingStoreException { String[] keys = from.keys(); for (String key : keys) { to.put(key, from.get(key, "")); }/*from w w w.j a va 2 s . c om*/ String childNodes[] = from.childrenNames(); for (String childNode : childNodes) { Preferences cn = from.node(childNode); Preferences tn = to.node(childNode); copyNode(cn, tn); } }
From source file:com.adito.server.Main.java
void copyNode(Preferences from, Preferences to) throws BackingStoreException { String[] keys = from.keys(); for (int i = 0; i < keys.length; i++) { to.put(keys[i], from.get(keys[i], "")); }// www. j a v a 2s. co m String childNodes[] = from.childrenNames(); for (int i = 0; i < childNodes.length; i++) { Preferences cn = from.node(childNodes[i]); Preferences tn = to.node(childNodes[i]); copyNode(cn, tn); } }