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/*
* Copyright 2007 - 2018 ETH Zuerich, CISD and SIS.
*
* Licensed 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 ch.systemsx.cisd.hdf5;
import java.util.Arrays;
/**
* An array of time durations.
*
* @author Bernd Rinn
*/
public class HDF5TimeDurationArray
{
final long[] timeDurations;
final HDF5TimeUnit timeUnit;
/**
* Creates an array of <var>timeDurations</var> using a common <var>timeUnit</var>.
*/
public HDF5TimeDurationArray(long[] timeDurations, HDF5TimeUnit timeUnit)
{
this.timeDurations = timeDurations;
this.timeUnit = timeUnit;
}
/**
* Creates a {@link HDF5TimeDurationArray} from the array of given <var>durationValues</var>
* with the given <var>timeUnit</var>.
*/
public static HDF5TimeDurationArray create(HDF5TimeUnit timeUnit, long... durationValues)
{
if (durationValues.length == 0)
{
return new HDF5TimeDurationArray(new long[0], timeUnit);
}
return new HDF5TimeDurationArray(durationValues, timeUnit);
}
/**
* Creates a {@link HDF5TimeDurationArray} from the given <var>timeDurations</var>. Converts all
* values to the smallest time unit found in <var>timeDurations</var>.
*/
public static HDF5TimeDurationArray create(HDF5TimeDuration... timeDurations)
{
if (timeDurations.length == 0)
{
return new HDF5TimeDurationArray(new long[0], HDF5TimeUnit.SECONDS);
}
HDF5TimeUnit unit = timeDurations[0].getUnit();
boolean needsConversion = false;
for (int i = 1; i < timeDurations.length; ++i)
{
final HDF5TimeUnit u = timeDurations[i].getUnit();
if (u != unit)
{
if (u.ordinal() < unit.ordinal())
{
unit = u;
}
needsConversion = true;
}
}
final long[] durations = new long[timeDurations.length];
if (needsConversion)
{
for (int i = 0; i < timeDurations.length; ++i)
{
durations[i] = unit.convert(timeDurations[i]);
}
} else
{
for (int i = 0; i < timeDurations.length; ++i)
{
durations[i] = timeDurations[i].getValue();
}
}
return new HDF5TimeDurationArray(durations, unit);
}
/**
* Returns the time unit.
*/
public HDF5TimeUnit getUnit()
{
return timeUnit;
}
/**
* Returns the time duration values.
*/
public long[] getValues()
{
return timeDurations;
}
/**
* Returns the number of elements.
*/
public int getLength()
{
return timeDurations.length;
}
/**
* Returns the time duration values in the given <var>targetUnit</var>.
*/
public long[] getValues(HDF5TimeUnit targetUnit)
{
if (targetUnit == timeUnit)
{
return timeDurations;
}
final long[] targetDurations = new long[timeDurations.length];
for (int i = 0; i < targetDurations.length; ++i)
{
targetDurations[i] = targetUnit.convert(timeDurations[i], timeUnit);
}
return targetDurations;
}
/**
* Returns the element <var>index</var>.
*/
public HDF5TimeDuration get(int index)
{
return new HDF5TimeDuration(timeDurations[index], timeUnit);
}
/**
* Returns the element <var>index</var> in the given <var>targetUnit</var>.
*/
public HDF5TimeDuration get(int index, HDF5TimeUnit targetUnit)
{
if (targetUnit == timeUnit)
{
return new HDF5TimeDuration(timeDurations[index], timeUnit);
} else
{
return new HDF5TimeDuration(targetUnit.convert(timeDurations[index], timeUnit),
targetUnit);
}
}
/**
* Returns the value element <var>index</var>.
*/
public long getValue(int index)
{
return timeDurations[index];
}
/**
* Returns the value element <var>index</var> in the given <var>targetUnit</var>.
*/
public long getValue(int index, HDF5TimeUnit targetUnit)
{
return (targetUnit == timeUnit) ? timeDurations[index] : targetUnit.convert(
timeDurations[index], timeUnit);
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result + Arrays.hashCode(timeDurations);
result = prime * result + ((timeUnit == null) ? 0 : timeUnit.hashCode());
return result;
}
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj == null)
{
return false;
}
if (getClass() != obj.getClass())
{
return false;
}
final HDF5TimeDurationArray other = (HDF5TimeDurationArray) obj;
if (Arrays.equals(timeDurations, other.timeDurations) == false)
{
return false;
}
if (timeUnit != other.timeUnit)
{
return false;
}
return true;
}
@Override
public String toString()
{
return "HDF5TimeDurationArray [timeDurations=" + Arrays.toString(timeDurations)
+ ", timeUnit=" + timeUnit + "]";
}
}
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