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/*
* 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 org.apache.cassandra.serializers;
import io.netty.util.concurrent.FastThreadLocal;
import org.apache.cassandra.utils.ByteBufferUtil;
import java.nio.ByteBuffer;
import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.TimeZone;
import java.util.regex.Pattern;
import org.apache.commons.lang3.time.DateUtils;
public class TimestampSerializer implements TypeSerializer
{
//NOTE: This list is used below and if you change the order
// you need to update the default format and json formats in the code below.
private static final String[] dateStringPatterns = new String[]
{
"yyyy-MM-dd HH:mm",
"yyyy-MM-dd HH:mm:ss",
"yyyy-MM-dd HH:mm z",
"yyyy-MM-dd HH:mm zz",
"yyyy-MM-dd HH:mm zzz",
"yyyy-MM-dd HH:mmX",
"yyyy-MM-dd HH:mmXX", // DEFAULT_FORMAT
"yyyy-MM-dd HH:mmXXX",
"yyyy-MM-dd HH:mm:ss",
"yyyy-MM-dd HH:mm:ss z",
"yyyy-MM-dd HH:mm:ss zz",
"yyyy-MM-dd HH:mm:ss zzz",
"yyyy-MM-dd HH:mm:ssX",
"yyyy-MM-dd HH:mm:ssXX",
"yyyy-MM-dd HH:mm:ssXXX",
"yyyy-MM-dd HH:mm:ss.SSS",
"yyyy-MM-dd HH:mm:ss.SSS z",
"yyyy-MM-dd HH:mm:ss.SSS zz",
"yyyy-MM-dd HH:mm:ss.SSS zzz",
"yyyy-MM-dd HH:mm:ss.SSSX", // TO_JSON_FORMAT
"yyyy-MM-dd HH:mm:ss.SSSXX",
"yyyy-MM-dd HH:mm:ss.SSSXXX",
"yyyy-MM-dd'T'HH:mm",
"yyyy-MM-dd'T'HH:mm z",
"yyyy-MM-dd'T'HH:mm zz",
"yyyy-MM-dd'T'HH:mm zzz",
"yyyy-MM-dd'T'HH:mmX",
"yyyy-MM-dd'T'HH:mmXX",
"yyyy-MM-dd'T'HH:mmXXX",
"yyyy-MM-dd'T'HH:mm:ss",
"yyyy-MM-dd'T'HH:mm:ss z",
"yyyy-MM-dd'T'HH:mm:ss zz",
"yyyy-MM-dd'T'HH:mm:ss zzz",
"yyyy-MM-dd'T'HH:mm:ssX",
"yyyy-MM-dd'T'HH:mm:ssXX",
"yyyy-MM-dd'T'HH:mm:ssXXX",
"yyyy-MM-dd'T'HH:mm:ss.SSS",
"yyyy-MM-dd'T'HH:mm:ss.SSS z",
"yyyy-MM-dd'T'HH:mm:ss.SSS zz",
"yyyy-MM-dd'T'HH:mm:ss.SSS zzz",
"yyyy-MM-dd'T'HH:mm:ss.SSSX", // UTC_FORMAT
"yyyy-MM-dd'T'HH:mm:ss.SSSXX",
"yyyy-MM-dd'T'HH:mm:ss.SSSXXX",
"yyyy-MM-dd",
"yyyy-MM-dd z",
"yyyy-MM-dd zz",
"yyyy-MM-dd zzz",
"yyyy-MM-ddX",
"yyyy-MM-ddXX",
"yyyy-MM-ddXXX"
};
private static final String DEFAULT_FORMAT = dateStringPatterns[6];
private static final Pattern timestampPattern = Pattern.compile("^-?\\d+$");
private static final FastThreadLocal FORMATTER = new FastThreadLocal()
{
protected SimpleDateFormat initialValue()
{
return new SimpleDateFormat(DEFAULT_FORMAT);
}
};
private static final String UTC_FORMAT = dateStringPatterns[40];
private static final FastThreadLocal FORMATTER_UTC = new FastThreadLocal()
{
protected SimpleDateFormat initialValue()
{
SimpleDateFormat sdf = new SimpleDateFormat(UTC_FORMAT);
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
return sdf;
}
};
private static final String TO_JSON_FORMAT = dateStringPatterns[19];
private static final FastThreadLocal FORMATTER_TO_JSON = new FastThreadLocal()
{
protected SimpleDateFormat initialValue()
{
SimpleDateFormat sdf = new SimpleDateFormat(TO_JSON_FORMAT);
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
return sdf;
}
};
public static final TimestampSerializer instance = new TimestampSerializer();
public Date deserialize(ByteBuffer bytes)
{
return bytes.remaining() == 0 ? null : new Date(ByteBufferUtil.toLong(bytes));
}
public ByteBuffer serialize(Date value)
{
return value == null ? ByteBufferUtil.EMPTY_BYTE_BUFFER : ByteBufferUtil.bytes(value.getTime());
}
public static long dateStringToTimestamp(String source) throws MarshalException
{
if (source.equalsIgnoreCase("now"))
return System.currentTimeMillis();
// Milliseconds since epoch?
if (timestampPattern.matcher(source).matches())
{
try
{
return Long.parseLong(source);
}
catch (NumberFormatException e)
{
throw new MarshalException(String.format("Unable to make long (for date) from: '%s'", source), e);
}
}
// Last chance, attempt to parse as date-time string
try
{
return DateUtils.parseDateStrictly(source, dateStringPatterns).getTime();
}
catch (ParseException e1)
{
throw new MarshalException(String.format("Unable to coerce '%s' to a formatted date (long)", source), e1);
}
}
public static SimpleDateFormat getJsonDateFormatter()
{
return FORMATTER_TO_JSON.get();
}
public void validate(ByteBuffer bytes) throws MarshalException
{
if (bytes.remaining() != 8 && bytes.remaining() != 0)
throw new MarshalException(String.format("Expected 8 or 0 byte long for date (%d)", bytes.remaining()));
}
public String toString(Date value)
{
return value == null ? "" : FORMATTER.get().format(value);
}
public String toStringUTC(Date value)
{
return value == null ? "" : FORMATTER_UTC.get().format(value);
}
public Class getType()
{
return Date.class;
}
/**
* Builds CQL literal for a timestamp using time zone UTC and fixed date format.
* @see #FORMATTER_UTC
*/
@Override
public String toCQLLiteral(ByteBuffer buffer)
{
return buffer == null || !buffer.hasRemaining()
? "null"
: FORMATTER_UTC.get().format(deserialize(buffer));
}
}