/**
* Constructor.
*
* @throws Exception if any error occurs.
*/
public GUIMacOSX() throws Exception {
// Name for the dock icon and the application menu
System.setProperty(P_ABOUT_NAME, NAME);
// Show menu in the screen menu instead of inside the application window
System.setProperty(P_SCREEN_MENU_BAR, "true");
// load native java classes...
appClass = Class.forName(C_APPLICATION);
appObj = invoke(appClass, null, "getApplication", EC, EO);
Class.forName(C_APPLICATION_EVENT);
if (appObj != null) {
invoke("addAboutMenuItem");
invoke("setEnabledAboutMenu", true);
invoke("addPreferencesMenuItem");
invoke("setEnabledPreferencesMenu", true);
addDockIcon();
final Class<?> alc = Class.forName(C_APPLICATION_LISTENER);
final Object listener =
Proxy.newProxyInstance(
getClass().getClassLoader(), new Class[] {alc}, new AppInvocationHandler());
invoke("addApplicationListener", alc, listener);
}
}
/**
* Returns an information string for an unexpected exception.
*
* @param ex exception
* @return dummy object
*/
public static String bug(final Throwable ex) {
final TokenBuilder tb = new TokenBuilder(BUGINFO);
tb.add(NL).add("Contact: ").add(MAIL);
tb.add(NL).add("Version: ").add(TITLE);
tb.add(NL).add("Java: ").add(System.getProperty("java.vendor"));
tb.add(", ").add(System.getProperty("java.version"));
tb.add(NL).add("OS: ").add(System.getProperty("os.name"));
tb.add(", ").add(System.getProperty("os.arch"));
tb.add(NL).add("Stack Trace: ");
for (final String e : toArray(ex)) tb.add(NL).add(e);
return tb.toString();
}
/**
* Recursively deletes the specified namespace URI reference.
*
* @param uri namespace URI reference
*/
void delete(final int uri) {
for (int c = 0; c < sz; ++c) children[c].delete(uri);
final int vl = values.length;
for (int v = 0; v < vl; v += 2) {
if (values[v + 1] != uri) continue;
final int[] vals = new int[vl - 2];
System.arraycopy(values, 0, vals, 0, v);
System.arraycopy(values, v + 2, vals, v, vl - v - 2);
values = vals;
break;
}
}
/**
* Constructor.
*
* @param s socket
* @param c database context
* @param l log reference
* @param srv server reference
*/
public ClientListener(final Socket s, final Context c, final Log l, final BaseXServer srv) {
context = new Context(c, this);
socket = s;
log = l;
server = srv;
last = System.currentTimeMillis();
}
/**
* Returns a password from standard input.
*
* @return password
*/
public static String password() {
// use standard input if no console if defined (such as in Eclipse)
if (NOCONSOLE) return input();
// hide password
final char[] pw = System.console().readPassword();
return pw != null ? new String(pw) : "";
}
@Override
public void run() {
running = true;
while (running) {
try {
final Socket s = socket.accept();
if (stop.exists()) {
if (!stop.delete()) log.write(Util.info(FILE_NOT_DELETED_X, stop));
quit();
} else {
// drop inactive connections
final long ka = context.mprop.num(MainProp.KEEPALIVE) * 1000L;
if (ka > 0) {
final long ms = System.currentTimeMillis();
for (final ClientListener cs : context.sessions) {
if (ms - cs.last > ka) cs.quit();
}
}
new ClientListener(s, context, log, this).start();
}
} catch (final IOException ex) {
// socket was closed..
break;
}
}
}
/**
* Main method, launching the server process. Command-line arguments are listed with the {@code
* -h} argument.
*
* @param args command-line arguments
*/
public static void main(final String[] args) {
try {
new BaseXServer(args);
} catch (final IOException ex) {
Util.errln(ex);
System.exit(1);
}
}
/**
* Sends a notification to the client.
*
* @param name event name
* @param msg event message
* @throws IOException I/O exception
*/
public synchronized void notify(final byte[] name, final byte[] msg) throws IOException {
last = System.currentTimeMillis();
eout.print(name);
eout.write(0);
eout.print(msg);
eout.write(0);
eout.flush();
}
/**
* Adds the specified node into the child array, which is sorted by pre values.
*
* @param node child node
*/
void add(final NSNode node) {
if (sz == children.length) children = Array.copy(children, new NSNode[Array.newSize(sz)]);
// find inserting position
int s = find(node.pr);
if (s < 0 || node.pr != children[s].pr) s++;
System.arraycopy(children, s, children, s + 1, sz++ - s);
children[s] = node;
node.parent = this;
}
/**
* Sets the output text.
*
* @param out cached output
*/
public void setText(final ArrayOutput out) {
final byte[] buf = out.buffer();
final int size = (int) out.size();
final byte[] chop = token(DOTS);
if (out.finished() && size >= chop.length) {
System.arraycopy(chop, 0, buf, size - chop.length, chop.length);
}
text.setText(buf, size);
header.setText((out.finished() ? CHOPPED : "") + RESULT);
home.setEnabled(gui.context.data() != null);
}
/**
* Creates an item iterator for the given XML fragment.
*
* @param xml fragment
* @param frag fragment flag
* @return iterator
*/
private ItemCache toIter(final String xml, final boolean frag) {
final ItemCache it = new ItemCache();
try {
String str = frag ? "<X>" + xml + "</X>" : xml;
final Data d = CreateDB.xml(IO.get(str), context);
for (int p = frag ? 2 : 0; p < d.meta.size; p += d.size(p, d.kind(p)))
it.add(new DBNode(d, p));
} catch (final IOException ex) {
return new ItemCache(new Item[] {Str.get(Long.toString(System.nanoTime()))}, 1);
}
return it;
}
/**
* Starts the specified class in a separate process.
*
* @param clz class to start
* @param args command-line arguments
* @return reference to a {@link Process} instance representing the started process
*/
public static Process start(final Class<?> clz, final String... args) {
final String[] largs = {
"java",
"-Xmx" + Runtime.getRuntime().maxMemory(),
"-cp",
System.getProperty("java.class.path"),
clz.getName(),
"-D",
};
final StringList sl = new StringList().add(largs).add(args);
try {
return new ProcessBuilder(sl.toArray()).start();
} catch (final IOException ex) {
notexpected(ex);
return null;
}
}
/**
* Adds values to the index.
*
* @param key key to be indexed
* @param vals sorted values
*/
void add(final byte[] key, final int... vals) {
// token index: add values. otherwise, reference existing values
final int id = type == IndexType.TOKEN ? values.put(key) : values.id(key), vl = vals.length;
// updatable index: if required, resize existing arrays
while (idsList.size() < id + 1) idsList.add(null);
if (lenList.size() < id + 1) lenList.set(id, 0);
final int len = lenList.get(id), size = len + vl;
int[] ids = idsList.get(id);
if (ids == null) {
ids = vals;
} else {
if (ids.length < size) ids = Arrays.copyOf(ids, Array.newSize(size));
System.arraycopy(vals, 0, ids, len, vl);
if (ids[len - 1] > vals[0]) {
if (reorder == null) reorder = new BoolList(values.size());
reorder.set(id, true);
}
}
idsList.set(id, ids);
lenList.set(id, size);
}
/**
* Deletes nodes in the specified range (p .. p + sz - 1) and updates the following pre values
*
* @param pre pre value
* @param size number of nodes to be deleted, or actually the size of the pre value which is to be
* deleted
*/
void delete(final int pre, final int size) {
// find the pre value which must be deleted
int s = find(pre);
/* if the node is not directly contained as a child, either start at array
* index 0 or proceed with the next node in the child array to search for
* descendants of pre
*/
if (s == -1 || children[s].pr != pre) ++s;
// first pre value which is not deleted
final int upper = pre + size;
// number of nodes to be deleted
int num = 0;
// determine number of nodes to be deleted
for (int i = s; i < sz && children[i].pr < upper; ++i, ++num) ;
// new size of child array
sz -= num;
// if all nodes are deleted, just create an empty array
if (sz == 0) children = new NSNode[0];
// otherwise remove nodes from the child array
else if (num > 0) System.arraycopy(children, s + num, children, s, sz - s);
}
/**
* Sets the specified value if property has not been set yet.
*
* @param key property key
* @param value property value
* @param force force setting
*/
private void set(final String key, final Object value, final boolean force) {
if (force || System.getProperty(key) == null) {
System.setProperty(key, value.toString());
}
}
@Override
public void run() {
// initialize the session via cram-md5 authentication
try {
final String ts = Long.toString(System.nanoTime());
final byte[] address = socket.getInetAddress().getAddress();
// send {TIMESTAMP}0
out = PrintOutput.get(socket.getOutputStream());
out.print(ts);
send(true);
// evaluate login data
in = new BufferInput(socket.getInputStream());
// receive {USER}0{PASSWORD}0
final String us = in.readString();
final String pw = in.readString();
context.user = context.users.get(us);
running = context.user != null && md5(string(context.user.password) + ts).equals(pw);
// write log information
if (running) {
log.write(this, "LOGIN " + context.user.name, OK);
// send {OK}
send(true);
server.unblock(address);
context.add(this);
} else {
if (!us.isEmpty()) log.write(this, ACCESS_DENIED + COLS + us);
new ClientDelayer(server.block(address), this, server).start();
}
} catch (final IOException ex) {
Util.stack(ex);
log.write(ex.getMessage());
return;
}
if (!running) return;
// authentification done, start command loop
ServerCmd sc = null;
String cmd = null;
try {
while (running) {
command = null;
try {
final int b = in.read();
if (b == -1) {
// end of stream: exit session
quit();
break;
}
last = System.currentTimeMillis();
perf.time();
sc = ServerCmd.get(b);
cmd = null;
if (sc == ServerCmd.CREATE) {
create();
} else if (sc == ServerCmd.ADD) {
add();
} else if (sc == ServerCmd.WATCH) {
watch();
} else if (sc == ServerCmd.UNWATCH) {
unwatch();
} else if (sc == ServerCmd.REPLACE) {
replace();
} else if (sc == ServerCmd.STORE) {
store();
} else if (sc != ServerCmd.COMMAND) {
query(sc);
} else {
// database command
cmd = new ByteList().add(b).add(in.readBytes()).toString();
}
} catch (final IOException ex) {
// this exception may be thrown if a session is stopped
quit();
break;
}
if (sc != ServerCmd.COMMAND) continue;
// parse input and create command instance
try {
command = new CommandParser(cmd, context).parseSingle();
} catch (final QueryException ex) {
// log invalid command
final String msg = ex.getMessage();
log.write(this, cmd, ERROR_C + msg);
// send 0 to mark end of potential result
out.write(0);
// send {INFO}0
out.writeString(msg);
// send 1 to mark error
send(false);
continue;
}
// start timeout
command.startTimeout(context.mprop.num(MainProp.TIMEOUT));
log.write(this, command.toString().replace('\r', ' ').replace('\n', ' '));
// execute command and send {RESULT}
boolean ok = true;
String info;
try {
command.execute(context, new EncodingOutput(out));
info = command.info();
} catch (final BaseXException ex) {
ok = false;
info = ex.getMessage();
if (info.startsWith(INTERRUPTED)) info = TIMEOUT_EXCEEDED;
}
// stop timeout
command.stopTimeout();
// send 0 to mark end of result
out.write(0);
// send info
info(info, ok);
// stop console
if (command instanceof Exit) {
command = null;
quit();
}
}
} catch (final IOException ex) {
log.write(this, sc == ServerCmd.COMMAND ? cmd : sc, ERROR_C + ex.getMessage());
Util.debug(ex);
command = null;
quit();
}
command = null;
}
/**
* This class contains static methods, which are used throughout the project. The methods are used
* for dumping error output, debugging information, getting the application path, etc.
*
* @author BaseX Team 2005-12, BSD License
* @author Christian Gruen
*/
public final class Util {
/** Flag for using default standard input. */
private static final boolean NOCONSOLE = System.console() == null;
/** Hidden constructor. */
private Util() {}
/**
* Returns an information string for an unexpected exception.
*
* @param ex exception
* @return dummy object
*/
public static String bug(final Throwable ex) {
final TokenBuilder tb = new TokenBuilder(BUGINFO);
tb.add(NL).add("Contact: ").add(MAIL);
tb.add(NL).add("Version: ").add(TITLE);
tb.add(NL).add("Java: ").add(System.getProperty("java.vendor"));
tb.add(", ").add(System.getProperty("java.version"));
tb.add(NL).add("OS: ").add(System.getProperty("os.name"));
tb.add(", ").add(System.getProperty("os.arch"));
tb.add(NL).add("Stack Trace: ");
for (final String e : toArray(ex)) tb.add(NL).add(e);
return tb.toString();
}
/**
* Throws a runtime exception for an unexpected exception.
*
* @param ext optional extension
* @return runtime exception (indicates that an error is raised)
*/
public static RuntimeException notexpected(final Object... ext) {
final TokenBuilder tb = new TokenBuilder();
tb.addExt("%", ext.length == 0 ? "Not Expected." : ext[0]);
throw new RuntimeException(tb.toString());
}
/**
* Throws a runtime exception for an unimplemented method.
*
* @param ext optional extension
* @return runtime exception (indicates that an error is raised)
*/
public static RuntimeException notimplemented(final Object... ext) {
final TokenBuilder tb = new TokenBuilder("Not Implemented");
if (ext.length != 0) tb.addExt(" (%)", ext);
throw new UnsupportedOperationException(tb.add('.').toString());
}
/**
* Returns the class name of the specified object.
*
* @param o object
* @return class name
*/
public static String name(final Object o) {
return name(o.getClass());
}
/**
* Returns the name of the specified class.
*
* @param o object
* @return class name
*/
public static String name(final Class<?> o) {
return o.getSimpleName();
}
/**
* Returns a single line from standard input.
*
* @return string
*/
public static String input() {
final Scanner sc = new Scanner(System.in);
return sc.hasNextLine() ? sc.nextLine().trim() : "";
}
/**
* Returns a password from standard input.
*
* @return password
*/
public static String password() {
// use standard input if no console if defined (such as in Eclipse)
if (NOCONSOLE) return input();
// hide password
final char[] pw = System.console().readPassword();
return pw != null ? new String(pw) : "";
}
/** Prints a newline to standard output. */
public static void outln() {
out(NL);
}
/**
* Prints a string to standard output, followed by a newline.
*
* @param str output string
* @param ext text optional extensions
*/
public static void outln(final Object str, final Object... ext) {
out((str instanceof byte[] ? Token.string((byte[]) str) : str) + NL, ext);
}
/**
* Prints a string to standard output.
*
* @param str output string
* @param ext text optional extensions
*/
public static void out(final Object str, final Object... ext) {
System.out.print(info(str, ext));
}
/**
* Prints a string to standard error, followed by a newline.
*
* @param obj error string
* @param ext text optional extensions
*/
public static void errln(final Object obj, final Object... ext) {
err((obj instanceof Throwable ? message((Throwable) obj) : obj) + NL, ext);
}
/**
* Prints a string to standard error.
*
* @param string debug string
* @param ext text optional extensions
*/
public static void err(final String string, final Object... ext) {
System.err.print(info(string, ext));
}
/**
* Returns a more user-friendly error message for the specified exception.
*
* @param ex throwable reference
* @return error message
*/
public static String message(final Throwable ex) {
debug(ex);
if (ex instanceof BindException) return SRV_RUNNING;
if (ex instanceof LoginException) return ACCESS_DENIED;
if (ex instanceof ConnectException) return CONNECTION_ERROR;
if (ex instanceof SocketTimeoutException) return TIMEOUT_EXCEEDED;
if (ex instanceof SocketException) return CONNECTION_ERROR;
String msg = ex.getMessage();
if (msg == null || msg.isEmpty()) msg = ex.toString();
if (ex instanceof FileNotFoundException) return info(RES_NOT_FOUND_X, msg);
if (ex instanceof UnknownHostException) return info(UNKNOWN_HOST_X, msg);
return msg;
}
/**
* Prints the exception stack trace if the {@link Prop#debug} flag is set.
*
* @param ex exception
*/
public static void debug(final Throwable ex) {
if (Prop.debug && ex != null) stack(ex);
}
/**
* Prints a string to standard error if the {@link Prop#debug} flag is set.
*
* @param str debug string
* @param ext text optional extensions
*/
public static void debug(final Object str, final Object... ext) {
if (Prop.debug) errln(str, ext);
}
/**
* Prints performance information if the {@link Prop#debug} flag is set.
*
* @param perf performance reference
*/
public static void memory(final Performance perf) {
if (!Prop.debug) return;
errln(" " + perf + " (" + Performance.getMemory() + ')');
}
/**
* Returns a string and replaces all % characters by the specified extensions (see {@link
* TokenBuilder#addExt} for details).
*
* @param str string to be extended
* @param ext text text extensions
* @return extended string
*/
public static String info(final Object str, final Object... ext) {
return Token.string(inf(str, ext));
}
/**
* Returns a token and replaces all % characters by the specified extensions (see {@link
* TokenBuilder#addExt} for details).
*
* @param str string to be extended
* @param ext text text extensions
* @return token
*/
public static byte[] inf(final Object str, final Object... ext) {
return new TokenBuilder().addExt(str, ext).finish();
}
/**
* Prints the current stack trace to System.err.
*
* @param i number of steps to print
*/
public static void stack(final int i) {
errln("You're here:");
final String[] stack = toArray(new Throwable());
final int l = Math.min(Math.max(2, i + 2), stack.length);
for (int s = 2; s < l; ++s) errln(stack[s]);
}
/**
* Prints the stack of the specified error to standard error.
*
* @param th error/exception instance
*/
public static void stack(final Throwable th) {
for (final String s : toArray(th)) errln(s);
}
/**
* Returns an string array representation of the specified throwable.
*
* @param th throwable
* @return string array
*/
private static String[] toArray(final Throwable th) {
final StackTraceElement[] st = th.getStackTrace();
final String[] obj = new String[st.length + 1];
obj[0] = th.toString();
for (int i = 0; i < st.length; i++) obj[i + 1] = " " + st[i];
return obj;
}
/**
* Starts the specified class in a separate process.
*
* @param clz class to start
* @param args command-line arguments
* @return reference to a {@link Process} instance representing the started process
*/
public static Process start(final Class<?> clz, final String... args) {
final String[] largs = {
"java",
"-Xmx" + Runtime.getRuntime().maxMemory(),
"-cp",
System.getProperty("java.class.path"),
clz.getName(),
"-D",
};
final StringList sl = new StringList().add(largs).add(args);
try {
return new ProcessBuilder(sl.toArray()).start();
} catch (final IOException ex) {
notexpected(ex);
return null;
}
}
/**
* Checks if the specified string is "yes", "true" or "on".
*
* @param string string to be checked
* @return result of check
*/
public static boolean yes(final String string) {
return Token.eqic(string, YES, TRUE, ON, INFOON);
}
/**
* Checks if the specified string is "no", "false" or "off".
*
* @param string string to be checked
* @return result of check
*/
public static boolean no(final String string) {
return Token.eqic(string, NO, FALSE, OFF, INFOOFF);
}
/**
* Returns an info message for the specified flag.
*
* @param flag current flag status
* @return ON/OFF message
*/
public static String flag(final boolean flag) {
return flag ? INFOON : INFOOFF;
}
}