/*
* 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 java.util.Map;
import java.util.concurrent.TimeUnit;
import org.apache.cassandra.exceptions.ConfigurationException;
public final class DateTieredCompactionStrategyOptions
{
protected static final TimeUnit DEFAULT_TIMESTAMP_RESOLUTION = TimeUnit.MICROSECONDS;
protected static final long DEFAULT_MAX_SSTABLE_AGE_DAYS = 365;
protected static final long DEFAULT_BASE_TIME_SECONDS = 60 * 60;
protected static final String TIMESTAMP_RESOLUTION_KEY = "timestamp_resolution";
protected static final String MAX_SSTABLE_AGE_KEY = "max_sstable_age_days";
protected static final String BASE_TIME_KEY = "base_time_seconds";
protected final long maxSSTableAge;
protected final long baseTime;
public DateTieredCompactionStrategyOptions(Map<String, String> options)
{
String optionValue = options.get(TIMESTAMP_RESOLUTION_KEY);
TimeUnit timestampResolution = optionValue == null ? DEFAULT_TIMESTAMP_RESOLUTION : TimeUnit.valueOf(optionValue);
optionValue = options.get(MAX_SSTABLE_AGE_KEY);
maxSSTableAge = timestampResolution.convert(optionValue == null ? DEFAULT_MAX_SSTABLE_AGE_DAYS : Long.parseLong(optionValue), TimeUnit.DAYS);
optionValue = options.get(BASE_TIME_KEY);
baseTime = timestampResolution.convert(optionValue == null ? DEFAULT_BASE_TIME_SECONDS : Long.parseLong(optionValue), TimeUnit.SECONDS);
}
public DateTieredCompactionStrategyOptions()
{
maxSSTableAge = DEFAULT_TIMESTAMP_RESOLUTION.convert(DEFAULT_MAX_SSTABLE_AGE_DAYS, TimeUnit.DAYS);
baseTime = DEFAULT_TIMESTAMP_RESOLUTION.convert(DEFAULT_BASE_TIME_SECONDS, TimeUnit.SECONDS);
}
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)
TimeUnit.valueOf(optionValue);
}
catch (IllegalArgumentException e)
{
throw new ConfigurationException(String.format("timestamp_resolution %s is not valid", optionValue));
}
optionValue = options.get(MAX_SSTABLE_AGE_KEY);
try
{
long maxSStableAge = optionValue == null ? DEFAULT_MAX_SSTABLE_AGE_DAYS : Long.parseLong(optionValue);
if (maxSStableAge < 0)
{
throw new ConfigurationException(String.format("%s must be non-negative: %d", MAX_SSTABLE_AGE_KEY, maxSStableAge));
}
}
catch (NumberFormatException e)
{
throw new ConfigurationException(String.format("%s is not a parsable int (base10) for %s", optionValue, MAX_SSTABLE_AGE_KEY), e);
}
optionValue = options.get(BASE_TIME_KEY);
try
{
long baseTime = optionValue == null ? DEFAULT_BASE_TIME_SECONDS : Long.parseLong(optionValue);
if (baseTime <= 0)
{
throw new ConfigurationException(String.format("%s must be greater than 0, but was %d", BASE_TIME_KEY, baseTime));
}
}
catch (NumberFormatException e)
{
throw new ConfigurationException(String.format("%s is not a parsable int (base10) for %s", optionValue, BASE_TIME_KEY), e);
}
uncheckedOptions.remove(MAX_SSTABLE_AGE_KEY);
uncheckedOptions.remove(BASE_TIME_KEY);
uncheckedOptions.remove(TIMESTAMP_RESOLUTION_KEY);
return uncheckedOptions;
}
}