com.factset.sdk.FactSetFunds.CustomInstantDeserializer Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of factsetfunds Show documentation
Show all versions of factsetfunds Show documentation
FactSet SDK for Java - factsetfunds
package com.factset.sdk.FactSetFunds;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonTokenId;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.datatype.threetenbp.DecimalUtils;
import com.fasterxml.jackson.datatype.threetenbp.deser.ThreeTenDateTimeDeserializerBase;
import com.fasterxml.jackson.datatype.threetenbp.function.BiFunction;
import com.fasterxml.jackson.datatype.threetenbp.function.Function;
import org.threeten.bp.DateTimeException;
import org.threeten.bp.DateTimeUtils;
import org.threeten.bp.Instant;
import org.threeten.bp.OffsetDateTime;
import org.threeten.bp.ZoneId;
import org.threeten.bp.ZonedDateTime;
import org.threeten.bp.format.DateTimeFormatter;
import org.threeten.bp.temporal.Temporal;
import org.threeten.bp.temporal.TemporalAccessor;
import java.io.IOException;
import java.math.BigDecimal;
/**
* Deserializer for ThreeTen temporal {@link Instant}s, {@link OffsetDateTime}, and {@link ZonedDateTime}s.
* Adapted from the jackson threetenbp InstantDeserializer to add support for deserializing rfc822 format.
*
* @author Nick Williams
*/
public class CustomInstantDeserializer
extends ThreeTenDateTimeDeserializerBase {
private static final long serialVersionUID = 1L;
public static final CustomInstantDeserializer INSTANT = new CustomInstantDeserializer(
Instant.class, DateTimeFormatter.ISO_INSTANT,
new Function() {
@Override
public Instant apply(TemporalAccessor temporalAccessor) {
return Instant.from(temporalAccessor);
}
},
new Function() {
@Override
public Instant apply(FromIntegerArguments a) {
return Instant.ofEpochMilli(a.value);
}
},
new Function() {
@Override
public Instant apply(FromDecimalArguments a) {
return Instant.ofEpochSecond(a.integer, a.fraction);
}
},
null
);
public static final CustomInstantDeserializer OFFSET_DATE_TIME = new CustomInstantDeserializer(
OffsetDateTime.class, DateTimeFormatter.ISO_OFFSET_DATE_TIME,
new Function() {
@Override
public OffsetDateTime apply(TemporalAccessor temporalAccessor) {
return OffsetDateTime.from(temporalAccessor);
}
},
new Function() {
@Override
public OffsetDateTime apply(FromIntegerArguments a) {
return OffsetDateTime.ofInstant(Instant.ofEpochMilli(a.value), a.zoneId);
}
},
new Function() {
@Override
public OffsetDateTime apply(FromDecimalArguments a) {
return OffsetDateTime.ofInstant(Instant.ofEpochSecond(a.integer, a.fraction), a.zoneId);
}
},
new BiFunction() {
@Override
public OffsetDateTime apply(OffsetDateTime d, ZoneId z) {
return d.withOffsetSameInstant(z.getRules().getOffset(d.toLocalDateTime()));
}
}
);
public static final CustomInstantDeserializer ZONED_DATE_TIME = new CustomInstantDeserializer(
ZonedDateTime.class, DateTimeFormatter.ISO_ZONED_DATE_TIME,
new Function() {
@Override
public ZonedDateTime apply(TemporalAccessor temporalAccessor) {
return ZonedDateTime.from(temporalAccessor);
}
},
new Function() {
@Override
public ZonedDateTime apply(FromIntegerArguments a) {
return ZonedDateTime.ofInstant(Instant.ofEpochMilli(a.value), a.zoneId);
}
},
new Function() {
@Override
public ZonedDateTime apply(FromDecimalArguments a) {
return ZonedDateTime.ofInstant(Instant.ofEpochSecond(a.integer, a.fraction), a.zoneId);
}
},
new BiFunction() {
@Override
public ZonedDateTime apply(ZonedDateTime zonedDateTime, ZoneId zoneId) {
return zonedDateTime.withZoneSameInstant(zoneId);
}
}
);
protected final Function fromMilliseconds;
protected final Function fromNanoseconds;
protected final Function parsedToValue;
protected final BiFunction adjust;
protected CustomInstantDeserializer(Class supportedType,
DateTimeFormatter parser,
Function parsedToValue,
Function fromMilliseconds,
Function fromNanoseconds,
BiFunction adjust) {
super(supportedType, parser);
this.parsedToValue = parsedToValue;
this.fromMilliseconds = fromMilliseconds;
this.fromNanoseconds = fromNanoseconds;
this.adjust = adjust == null ? new BiFunction() {
@Override
public T apply(T t, ZoneId zoneId) {
return t;
}
} : adjust;
}
@SuppressWarnings("unchecked")
protected CustomInstantDeserializer(CustomInstantDeserializer base, DateTimeFormatter f) {
super((Class) base.handledType(), f);
parsedToValue = base.parsedToValue;
fromMilliseconds = base.fromMilliseconds;
fromNanoseconds = base.fromNanoseconds;
adjust = base.adjust;
}
@Override
protected JsonDeserializer withDateFormat(DateTimeFormatter dtf) {
if (dtf == _formatter) {
return this;
}
return new CustomInstantDeserializer(this, dtf);
}
@Override
public T deserialize(JsonParser parser, DeserializationContext context) throws IOException {
//NOTE: Timestamps contain no timezone info, and are always in configured TZ. Only
//string values have to be adjusted to the configured TZ.
switch (parser.getCurrentTokenId()) {
case JsonTokenId.ID_NUMBER_FLOAT: {
BigDecimal value = parser.getDecimalValue();
long seconds = value.longValue();
int nanoseconds = DecimalUtils.extractNanosecondDecimal(value, seconds);
return fromNanoseconds.apply(new FromDecimalArguments(
seconds, nanoseconds, getZone(context)));
}
case JsonTokenId.ID_NUMBER_INT: {
long timestamp = parser.getLongValue();
if (context.isEnabled(DeserializationFeature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS)) {
return this.fromNanoseconds.apply(new FromDecimalArguments(
timestamp, 0, this.getZone(context)
));
}
return this.fromMilliseconds.apply(new FromIntegerArguments(
timestamp, this.getZone(context)
));
}
case JsonTokenId.ID_STRING: {
String string = parser.getText().trim();
if (string.length() == 0) {
return null;
}
if (string.endsWith("+0000")) {
string = string.substring(0, string.length() - 5) + "Z";
}
T value;
try {
TemporalAccessor acc = _formatter.parse(string);
value = parsedToValue.apply(acc);
if (context.isEnabled(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE)) {
return adjust.apply(value, this.getZone(context));
}
} catch (DateTimeException e) {
throw _peelDTE(e);
}
return value;
}
}
throw context.mappingException("Expected type float, integer, or string.");
}
private ZoneId getZone(DeserializationContext context) {
// Instants are always in UTC, so don't waste compute cycles
return (_valueClass == Instant.class) ? null : DateTimeUtils.toZoneId(context.getTimeZone());
}
private static class FromIntegerArguments {
public final long value;
public final ZoneId zoneId;
private FromIntegerArguments(long value, ZoneId zoneId) {
this.value = value;
this.zoneId = zoneId;
}
}
private static class FromDecimalArguments {
public final long integer;
public final int fraction;
public final ZoneId zoneId;
private FromDecimalArguments(long integer, int fraction, ZoneId zoneId) {
this.integer = integer;
this.fraction = fraction;
this.zoneId = zoneId;
}
}
}