com.datastax.oss.driver.internal.core.type.codec.TimeCodec Maven / Gradle / Ivy
The newest version!
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.datastax.oss.driver.internal.core.type.codec;
import com.datastax.oss.driver.api.core.ProtocolVersion;
import com.datastax.oss.driver.api.core.type.DataType;
import com.datastax.oss.driver.api.core.type.DataTypes;
import com.datastax.oss.driver.api.core.type.codec.TypeCodec;
import com.datastax.oss.driver.api.core.type.codec.TypeCodecs;
import com.datastax.oss.driver.api.core.type.reflect.GenericType;
import com.datastax.oss.driver.internal.core.util.Strings;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.nio.ByteBuffer;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class TimeCodec implements TypeCodec {
private static final DateTimeFormatter FORMATTER =
DateTimeFormatter.ofPattern("HH:mm:ss.SSSSSSSSS");
@NonNull
@Override
public GenericType getJavaType() {
return GenericType.LOCAL_TIME;
}
@NonNull
@Override
public DataType getCqlType() {
return DataTypes.TIME;
}
@Override
public boolean accepts(@NonNull Object value) {
return value instanceof LocalTime;
}
@Override
public boolean accepts(@NonNull Class javaClass) {
return javaClass == LocalTime.class;
}
@Nullable
@Override
public ByteBuffer encode(@Nullable LocalTime value, @NonNull ProtocolVersion protocolVersion) {
return (value == null)
? null
: TypeCodecs.BIGINT.encodePrimitive(value.toNanoOfDay(), protocolVersion);
}
@Nullable
@Override
public LocalTime decode(@Nullable ByteBuffer bytes, @NonNull ProtocolVersion protocolVersion) {
if (bytes == null || bytes.remaining() == 0) {
return null;
} else {
long nanosOfDay = TypeCodecs.BIGINT.decodePrimitive(bytes, protocolVersion);
return LocalTime.ofNanoOfDay(nanosOfDay);
}
}
@NonNull
@Override
public String format(@Nullable LocalTime value) {
return (value == null) ? "NULL" : Strings.quote(FORMATTER.format(value));
}
@Nullable
@Override
public LocalTime parse(@Nullable String value) {
if (value == null || value.isEmpty() || value.equalsIgnoreCase("NULL")) {
return null;
}
// enclosing single quotes required, even for long literals
if (!Strings.isQuoted(value)) {
throw new IllegalArgumentException("time values must be enclosed by single quotes");
}
value = value.substring(1, value.length() - 1);
if (Strings.isLongLiteral(value)) {
try {
return LocalTime.ofNanoOfDay(Long.parseLong(value));
} catch (NumberFormatException e) {
throw new IllegalArgumentException(
String.format("Cannot parse time value from \"%s\"", value), e);
}
}
try {
return LocalTime.parse(value);
} catch (RuntimeException e) {
throw new IllegalArgumentException(
String.format("Cannot parse time value from \"%s\"", value), e);
}
}
}