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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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import java.time.Instant;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.SimpleFormatter;
/**
* @test
* @bug 8072645
* @summary tests that SimpleFormatter can print out dates with the new
* nanosecond precision.
* @run main/othervm SimpleFormatterNanos
* @author danielfuchs
*/
public class SimpleFormatterNanos {
static final int MILLIS_IN_SECOND = 1000;
static final int NANOS_IN_MILLI = 1000_000;
static final int NANOS_IN_MICRO = 1000;
static final int NANOS_IN_SECOND = 1000_000_000;
static final boolean verbose = true;
static final class TestAssertException extends RuntimeException {
TestAssertException(String msg) { super(msg); }
}
private static void assertEquals(long expected, long received, String msg) {
if (expected != received) {
throw new TestAssertException("Unexpected result for " + msg
+ ".\n\texpected: " + expected
+ "\n\tactual: " + received);
} else if (verbose) {
System.out.println("Got expected " + msg + ": " + received);
}
}
static int getNanoAdjustment(LogRecord record) {
return record.getInstant().getNano() % NANOS_IN_MILLI;
}
static void setNanoAdjustment(LogRecord record, int nanos) {
record.setInstant(Instant.ofEpochSecond(record.getInstant().getEpochSecond(),
(record.getInstant().getNano() / NANOS_IN_MILLI) * NANOS_IN_MILLI + nanos));
}
public static void main(String[] args) throws Exception {
Locale.setDefault(Locale.ENGLISH);
LogRecord record = new LogRecord(Level.INFO, "Java Version: {0}");
record.setLoggerName("test");
record.setParameters(new Object[] {System.getProperty("java.version")});
int nanos = getNanoAdjustment(record);
long millis = record.getMillis();
// make sure we don't have leading zeros when printing below
// the second precision
if (millis % MILLIS_IN_SECOND < 100) millis = millis + 100;
// make sure we have some nanos
if (nanos % NANOS_IN_MICRO == 0) nanos = nanos + 999;
record.setMillis(millis);
setNanoAdjustment(record, nanos);
final Instant instant = record.getInstant();
if (nanos < 0) {
throw new RuntimeException("Unexpected negative nano adjustment: "
+ getNanoAdjustment(record));
}
if (nanos >= NANOS_IN_MILLI) {
throw new RuntimeException("Nano adjustment exceeds 1ms: "
+ getNanoAdjustment(record));
}
if (millis != record.getMillis()) {
throw new RuntimeException("Unexpected millis: " + millis + " != "
+ record.getMillis());
}
if (millis != record.getInstant().toEpochMilli()) {
throw new RuntimeException("Unexpected millis: "
+ record.getInstant().toEpochMilli());
}
ZonedDateTime zdt = ZonedDateTime.ofInstant(instant, ZoneId.systemDefault());
int zdtNanos = zdt.getNano();
long expectedNanos = (millis % MILLIS_IN_SECOND) * NANOS_IN_MILLI + nanos;
assertEquals(expectedNanos, instant.getNano(), "Instant.getNano()");
assertEquals(expectedNanos, zdtNanos, "ZonedDateTime.getNano()");
String match = "."+expectedNanos+" ";
System.out.println("Testing with default format...");
SimpleFormatter formatter = new SimpleFormatter();
String str = formatter.format(record);
if (str.contains(match)) {
throw new RuntimeException("SimpleFormatter.format()"
+ " string contains unexpected nanos: "
+ "\n\tdid not expect match for: '" + match + "'"
+ "\n\tin: " + str);
}
System.out.println("Nanos omitted as expected: no '"+match+"' in "+str);
System.out.println("Changing format to print nanos...");
System.setProperty("java.util.logging.SimpleFormatter.format",
"%1$tb %1$td, %1$tY %1$tl:%1$tM:%1$tS.%1$tN %1$Tp %2$s%n%4$s: %5$s%6$s%n");
SimpleFormatter formatter2 = new SimpleFormatter();
str = formatter2.format(record);
if (!str.contains(match)) {
throw new RuntimeException("SimpleFormatter.format()"
+ " string does not contain expected nanos: "
+ "\n\texpected match for: '" + match + "'"
+ "\n\tin: " + str);
}
System.out.println("Found expected match for '"+match+"' in "+str);
System.out.println("Changing format to omit nanos...");
System.setProperty("java.util.logging.SimpleFormatter.format",
"%1$tb %1$td, %1$tY %1$tl:%1$tM:%1$tS %1$Tp %2$s%n%4$s: %5$s%6$s%n");
SimpleFormatter formatter3 = new SimpleFormatter();
str = formatter3.format(record);
String notMatch = match;
if (str.contains(notMatch)) {
throw new RuntimeException("SimpleFormatter.format()"
+ " string contains unexpected nanos: "
+ "\n\tdid not expect match for: '" + notMatch + "'"
+ "\n\tin: " + str);
}
System.out.println("Nanos omitted as expected: no '"+notMatch+"' in "+str);
}
}