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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.db.compaction;
import com.google.common.collect.ImmutableList;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.cassandra.exceptions.ConfigurationException;
public final class TimeWindowCompactionStrategyOptions
{
private static final Logger logger = LoggerFactory.getLogger(TimeWindowCompactionStrategyOptions.class);
protected static final TimeUnit DEFAULT_TIMESTAMP_RESOLUTION = TimeUnit.MICROSECONDS;
protected static final TimeUnit DEFAULT_COMPACTION_WINDOW_UNIT = TimeUnit.DAYS;
protected static final int DEFAULT_COMPACTION_WINDOW_SIZE = 1;
protected static final int DEFAULT_EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS = 60 * 10;
protected static final String TIMESTAMP_RESOLUTION_KEY = "timestamp_resolution";
protected static final String COMPACTION_WINDOW_UNIT_KEY = "compaction_window_unit";
protected static final String COMPACTION_WINDOW_SIZE_KEY = "compaction_window_size";
protected static final String EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS_KEY = "expired_sstable_check_frequency_seconds";
protected final int sstableWindowSize;
protected final TimeUnit sstableWindowUnit;
protected final TimeUnit timestampResolution;
protected final long expiredSSTableCheckFrequency;
SizeTieredCompactionStrategyOptions stcsOptions;
protected final static ImmutableList<TimeUnit> validTimestampTimeUnits = ImmutableList.of(TimeUnit.SECONDS, TimeUnit.MILLISECONDS, TimeUnit.MICROSECONDS, TimeUnit.NANOSECONDS);
protected final static ImmutableList<TimeUnit> validWindowTimeUnits = ImmutableList.of(TimeUnit.MINUTES, TimeUnit.HOURS, TimeUnit.DAYS);
public TimeWindowCompactionStrategyOptions(Map<String, String> options)
{
String optionValue = options.get(TIMESTAMP_RESOLUTION_KEY);
timestampResolution = optionValue == null ? DEFAULT_TIMESTAMP_RESOLUTION : TimeUnit.valueOf(optionValue);
if (timestampResolution != DEFAULT_TIMESTAMP_RESOLUTION)
logger.warn("Using a non-default timestamp_resolution {} - are you really doing inserts with USING TIMESTAMP <non_microsecond_timestamp> (or driver equivalent)?", timestampResolution.toString());
optionValue = options.get(COMPACTION_WINDOW_UNIT_KEY);
sstableWindowUnit = optionValue == null ? DEFAULT_COMPACTION_WINDOW_UNIT : TimeUnit.valueOf(optionValue);
optionValue = options.get(COMPACTION_WINDOW_SIZE_KEY);
sstableWindowSize = optionValue == null ? DEFAULT_COMPACTION_WINDOW_SIZE : Integer.parseInt(optionValue);
optionValue = options.get(EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS_KEY);
expiredSSTableCheckFrequency = TimeUnit.MILLISECONDS.convert(optionValue == null ? DEFAULT_EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS : Long.parseLong(optionValue), TimeUnit.SECONDS);
stcsOptions = new SizeTieredCompactionStrategyOptions(options);
}
public TimeWindowCompactionStrategyOptions()
{
sstableWindowUnit = DEFAULT_COMPACTION_WINDOW_UNIT;
timestampResolution = DEFAULT_TIMESTAMP_RESOLUTION;
sstableWindowSize = DEFAULT_COMPACTION_WINDOW_SIZE;
expiredSSTableCheckFrequency = TimeUnit.MILLISECONDS.convert(DEFAULT_EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS, TimeUnit.SECONDS);
stcsOptions = new SizeTieredCompactionStrategyOptions();
}
public static Map<String, String> validateOptions(Map<String, String> options, Map<String, String> uncheckedOptions) throws ConfigurationException
{
String optionValue = options.get(TIMESTAMP_RESOLUTION_KEY);
try
{
if (optionValue != null)
if (!validTimestampTimeUnits.contains(TimeUnit.valueOf(optionValue)))
throw new ConfigurationException(String.format("%s is not valid for %s", optionValue, TIMESTAMP_RESOLUTION_KEY));
}
catch (IllegalArgumentException e)
{
throw new ConfigurationException(String.format("%s is not valid for %s", optionValue, TIMESTAMP_RESOLUTION_KEY));
}
optionValue = options.get(COMPACTION_WINDOW_UNIT_KEY);
try
{
if (optionValue != null)
if (!validWindowTimeUnits.contains(TimeUnit.valueOf(optionValue)))
throw new ConfigurationException(String.format("%s is not valid for %s", optionValue, COMPACTION_WINDOW_UNIT_KEY));
}
catch (IllegalArgumentException e)
{
throw new ConfigurationException(String.format("%s is not valid for %s", optionValue, COMPACTION_WINDOW_UNIT_KEY), e);
}
optionValue = options.get(COMPACTION_WINDOW_SIZE_KEY);
try
{
int sstableWindowSize = optionValue == null ? DEFAULT_COMPACTION_WINDOW_SIZE : Integer.parseInt(optionValue);
if (sstableWindowSize < 1)
{
throw new ConfigurationException(String.format("%d must be greater than 1 for %s", sstableWindowSize, COMPACTION_WINDOW_SIZE_KEY));
}
}
catch (NumberFormatException e)
{
throw new ConfigurationException(String.format("%s is not a parsable int (base10) for %s", optionValue, COMPACTION_WINDOW_SIZE_KEY), e);
}
optionValue = options.get(EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS_KEY);
try
{
long expiredCheckFrequency = optionValue == null ? DEFAULT_EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS : Long.parseLong(optionValue);
if (expiredCheckFrequency < 0)
{
throw new ConfigurationException(String.format("%s must not be negative, but was %d", EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS_KEY, expiredCheckFrequency));
}
}
catch (NumberFormatException e)
{
throw new ConfigurationException(String.format("%s is not a parsable int (base10) for %s", optionValue, EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS_KEY), e);
}
uncheckedOptions.remove(COMPACTION_WINDOW_SIZE_KEY);
uncheckedOptions.remove(COMPACTION_WINDOW_UNIT_KEY);
uncheckedOptions.remove(TIMESTAMP_RESOLUTION_KEY);
uncheckedOptions.remove(EXPIRED_SSTABLE_CHECK_FREQUENCY_SECONDS_KEY);
uncheckedOptions = SizeTieredCompactionStrategyOptions.validateOptions(options, uncheckedOptions);
return uncheckedOptions;
}
}