/** line search */
private void backtrackingLineSearch() throws AssertionError {
double origDirDeriv = dirDeriv();
// if a non-descent direction is chosen, the line search will break anyway, so throw here
// The most likely reason for this is a bug in your function's gradient computation
try {
assert origDirDeriv < 0;
} catch (AssertionError ae) {
ae.printStackTrace();
stderr.println("!! L-BFGS chose a non-descent direction: check your gradient!");
// System.exit(1);
throw new AssertionError(ae.toString());
}
double alpha = 1.0;
double backoff = 0.5;
if (iter == 1) {
double normDir = Math.sqrt(ArrayUtils.dot(dir, dir));
alpha = (1 / normDir);
backoff = 0.1;
if (DEBUG || verbose) {
stderr.println("alpha:" + alpha);
stderr.println("normDir:" + normDir);
}
}
double oldValue = value;
boolean first = true;
while (true) {
getNextPoint(alpha);
value = evalL1();
if (DEBUG || verbose) {
stderr.println("alpha:" + alpha);
stderr.println("value:" + value);
stderr.println("oldValue:" + oldValue);
stderr.println("C1:" + C1);
stderr.println("origDirDeriv:" + origDirDeriv);
stderr.println("alpha:" + alpha);
assert !Double.isNaN(value);
assert !Double.isNaN(origDirDeriv);
}
if (!first && value <= (oldValue + C1 * origDirDeriv * alpha)) {
break;
}
first = false;
if (!quiet) {
stderr.print(".");
}
alpha *= backoff;
}
if (!quiet) {
stderr.println();
}
}
BARControl(String[] args) {
try {
// load settings
Settings.load();
// parse arguments
parseArguments(args);
// init display
display = new Display();
// connect to server
LoginData loginData = new LoginData(serverName, serverPort, serverTLSPort);
boolean connectOkFlag = false;
if ((loginData.serverName != null)
&& !loginData.serverName.equals("")
&& (loginData.password != null)
&& !loginData.password.equals("")
&& !loginDialogFlag) {
// connect to server with preset data
try {
BARServer.connect(
loginData.serverName,
loginData.port,
loginData.tlsPort,
loginData.password,
serverKeyFileName);
connectOkFlag = true;
} catch (ConnectionError error) {
}
}
while (!connectOkFlag) {
// get login data
if (!getLoginData(loginData)) {
System.exit(0);
}
if ((loginData.port == 0) && (loginData.tlsPort == 0)) {
throw new Error("Cannot connect to server. No server ports specified!");
}
/// ??? host name scheck
// connect to server
try {
BARServer.connect(
loginData.serverName,
loginData.port,
loginData.tlsPort,
loginData.password,
serverKeyFileName);
connectOkFlag = true;
} catch (ConnectionError error) {
if (!Dialogs.confirmError(
new Shell(),
"Connection fail",
"Error: " + error.getMessage(),
"Try again",
"Cancel")) {
System.exit(1);
}
}
}
// open main window
createWindow();
createTabs();
createMenu();
// run
run();
// disconnect
BARServer.disconnect();
// save settings
Settings.save();
} catch (org.eclipse.swt.SWTException exception) {
System.err.println("ERROR graphics: " + exception.getCause());
if (debug) {
for (StackTraceElement stackTraceElement : exception.getStackTrace()) {
System.err.println(" " + stackTraceElement);
}
}
} catch (CommunicationError communicationError) {
System.err.println("ERROR communication: " + communicationError.getMessage());
} catch (AssertionError assertionError) {
System.err.println("INTERNAL ERROR: " + assertionError.toString());
for (StackTraceElement stackTraceElement : assertionError.getStackTrace()) {
System.err.println(" " + stackTraceElement);
}
System.err.println("");
System.err.println("Please report this assertion error to [email protected].");
} catch (InternalError error) {
System.err.println("INTERNAL ERROR: " + error.getMessage());
} catch (Error error) {
System.err.println("ERROR: " + error.getMessage());
if (debug) {
for (StackTraceElement stackTraceElement : error.getStackTrace()) {
System.err.println(" " + stackTraceElement);
}
}
}
}
@Test
public void testSizeOf() throws Exception {
Assume.assumeThat(
CURRENT_JVM_INFORMATION.getMinimumObjectSize(),
is(CURRENT_JVM_INFORMATION.getObjectAlignment()));
SizeOf sizeOf = new CrossCheckingSizeOf();
Assert.assertThat(deepSizeOf(sizeOf, TimeUnit.SECONDS), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Object.class), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, 1), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, BigInteger.ZERO), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, BigDecimal.ZERO), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, MathContext.UNLIMITED), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Locale.ENGLISH), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Logger.global), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Collections.EMPTY_SET), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Collections.EMPTY_LIST), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Collections.EMPTY_MAP), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, String.CASE_INSENSITIVE_ORDER), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, System.err), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, Proxy.NO_PROXY), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, CodingErrorAction.REPORT), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, DatatypeConstants.DAYS), is(0L));
Assert.assertThat(deepSizeOf(sizeOf, DatatypeConstants.TIME), is(0L));
assertThat(sizeOf.sizeOf(new Object()), "sizeOf(new Object())");
assertThat(sizeOf.sizeOf(new Integer(1)), "sizeOf(new Integer(1))");
assertThat(sizeOf.sizeOf(1000), "sizeOf(1000)");
assertThat(deepSizeOf(sizeOf, new SomeClass(false)), "deepSizeOf(new SomeClass(false))");
assertThat(deepSizeOf(sizeOf, new SomeClass(true)), "deepSizeOf(new SomeClass(true))");
assertThat(sizeOf.sizeOf(new Object[] {}), "sizeOf(new Object[] { })");
assertThat(
sizeOf.sizeOf(new Object[] {new Object(), new Object(), new Object(), new Object()}),
"sizeOf(new Object[] { new Object(), new Object(), new Object(), new Object() })");
assertThat(sizeOf.sizeOf(new int[] {}), "sizeOf(new int[] { })");
assertThat(
sizeOf.sizeOf(new int[] {987654, 876543, 765432, 654321}),
"sizeOf(new int[] { 987654, 876543, 765432, 654321 })");
assertThat(deepSizeOf(sizeOf, new Pair(null, null)), "deepSizeOf(new Pair(null, null))");
assertThat(
deepSizeOf(sizeOf, new Pair(new Object(), null)),
"deepSizeOf(new Pair(new Object(), null))");
assertThat(
deepSizeOf(sizeOf, new Pair(new Object(), new Object())),
"deepSizeOf(new Pair(new Object(), new Object()))");
assertThat(
deepSizeOf(sizeOf, new ReentrantReadWriteLock()),
"deepSizeOf(new ReentrantReadWriteLock())");
if (!sizeOfFailures.isEmpty()) {
StringBuilder sb = new StringBuilder();
for (AssertionError e : sizeOfFailures) {
sb.append(e.toString()).append('\n');
}
Assert.fail(sb.toString());
}
List<Object> list1 = new ArrayList<Object>();
List<Object> list2 = new ArrayList<Object>();
Object someInstance = new Object();
list1.add(someInstance);
list2.add(someInstance);
Assert.assertThat(deepSizeOf(sizeOf, list1), is(deepSizeOf(sizeOf, list2)));
Assert.assertThat(
deepSizeOf(sizeOf, list1, list2) < (deepSizeOf(sizeOf, list1) + deepSizeOf(sizeOf, list2)),
is(true));
list2.add(new Object());
Assert.assertThat(deepSizeOf(sizeOf, list2) > deepSizeOf(sizeOf, list1), is(true));
}
