io.dropwizard.jdbi.args.InstantArgumentFactory Maven / Gradle / Ivy
package io.dropwizard.jdbi.args;
import org.skife.jdbi.v2.StatementContext;
import org.skife.jdbi.v2.tweak.Argument;
import org.skife.jdbi.v2.tweak.ArgumentFactory;
import java.time.Instant;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Optional;
import java.util.TimeZone;
/**
* An {@link ArgumentFactory} for {@link Instant} arguments.
*/
public class InstantArgumentFactory implements ArgumentFactory {
/**
* {@link Calendar} for representing a database time zone.
* If a field is not represented in a database as
* {@code TIMESTAMP WITH TIME ZONE}, we need to set its time zone
* explicitly. Otherwise it will not be correctly represented in
* a time zone different from the time zone of the database.
*/
private final Optional calendar;
public InstantArgumentFactory() {
this(Optional.empty());
}
public InstantArgumentFactory(final Optional tz) {
this.calendar = tz.map(GregorianCalendar::new);
}
@Override
public boolean accepts(Class expectedType, Object value, StatementContext ctx) {
return value instanceof Instant;
}
@Override
public Argument build(Class expectedType, Instant value, StatementContext ctx) {
return new InstantArgument(value, calendar);
}
}