src/main/java/io/mifos/core/cassandra/util/LocalDateTimeCodec.java

/*
 * 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 io.mifos.core.cassandra.util;

import com.datastax.driver.core.DataType;
import com.datastax.driver.core.ParseUtils;
import com.datastax.driver.core.ProtocolVersion;
import com.datastax.driver.core.TypeCodec;
import com.datastax.driver.core.exceptions.InvalidTypeException;
import io.mifos.core.lang.DateConverter;

import java.nio.ByteBuffer;
import java.time.LocalDateTime;

public class LocalDateTimeCodec extends TypeCodec<LocalDateTime> {

  public LocalDateTimeCodec() {
    super(DataType.timestamp(), LocalDateTime.class);
  }

  @Override
  public ByteBuffer serialize(final LocalDateTime value, final ProtocolVersion protocolVersion) throws InvalidTypeException {
    final Long epochMillis = DateConverter.toEpochMillis(value);
    return TypeCodec.bigint().serializeNoBoxing(epochMillis, protocolVersion);
  }

  @Override
  public LocalDateTime deserialize(final ByteBuffer bytes, final ProtocolVersion protocolVersion) throws InvalidTypeException {
    final Long epochMillis = TypeCodec.bigint().deserializeNoBoxing(bytes, protocolVersion);
    return DateConverter.fromEpochMillis(epochMillis);
  }

  @Override
  public LocalDateTime parse(final String value) throws InvalidTypeException {
    final String toParse;
    if (ParseUtils.isQuoted(value)) {
      toParse = ParseUtils.unquote(value);
    } else {
      toParse = value;
    }

    if (ParseUtils.isLongLiteral(toParse)) {
      return DateConverter.fromEpochMillis(Long.parseLong(toParse));
    } else {
      return DateConverter.fromIsoString(toParse);
    }
  }

  @Override
  public String format(final LocalDateTime value) throws InvalidTypeException {
    return ParseUtils.quote(DateConverter.toIsoString(value));
  }
}