/
ColumnarArray.java
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/
ColumnarArray.java
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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.spark.sql.vectorized;
import org.apache.spark.annotation.InterfaceStability;
import org.apache.spark.sql.catalyst.util.ArrayData;
import org.apache.spark.sql.catalyst.util.MapData;
import org.apache.spark.sql.types.*;
import org.apache.spark.unsafe.types.CalendarInterval;
import org.apache.spark.unsafe.types.UTF8String;
/**
* Array abstraction in {@link ColumnVector}.
*/
@InterfaceStability.Evolving
public final class ColumnarArray extends ArrayData {
// The data for this array. This array contains elements from
// data[offset] to data[offset + length).
private final ColumnVector data;
private final int offset;
private final int length;
public ColumnarArray(ColumnVector data, int offset, int length) {
this.data = data;
this.offset = offset;
this.length = length;
}
@Override
public int numElements() {
return length;
}
@Override
public ArrayData copy() {
throw new UnsupportedOperationException();
}
@Override
public boolean[] toBooleanArray() { return data.getBooleans(offset, length); }
@Override
public byte[] toByteArray() { return data.getBytes(offset, length); }
@Override
public short[] toShortArray() { return data.getShorts(offset, length); }
@Override
public int[] toIntArray() { return data.getInts(offset, length); }
@Override
public long[] toLongArray() { return data.getLongs(offset, length); }
@Override
public float[] toFloatArray() { return data.getFloats(offset, length); }
@Override
public double[] toDoubleArray() { return data.getDoubles(offset, length); }
// TODO: this is extremely expensive.
@Override
public Object[] array() {
DataType dt = data.dataType();
Object[] list = new Object[length];
try {
for (int i = 0; i < length; i++) {
if (!data.isNullAt(offset + i)) {
list[i] = get(i, dt);
}
}
return list;
} catch(Exception e) {
throw new RuntimeException("Could not get the array", e);
}
}
@Override
public boolean isNullAt(int ordinal) { return data.isNullAt(offset + ordinal); }
@Override
public boolean getBoolean(int ordinal) {
return data.getBoolean(offset + ordinal);
}
@Override
public byte getByte(int ordinal) { return data.getByte(offset + ordinal); }
@Override
public short getShort(int ordinal) {
return data.getShort(offset + ordinal);
}
@Override
public int getInt(int ordinal) { return data.getInt(offset + ordinal); }
@Override
public long getLong(int ordinal) { return data.getLong(offset + ordinal); }
@Override
public float getFloat(int ordinal) {
return data.getFloat(offset + ordinal);
}
@Override
public double getDouble(int ordinal) { return data.getDouble(offset + ordinal); }
@Override
public Decimal getDecimal(int ordinal, int precision, int scale) {
return data.getDecimal(offset + ordinal, precision, scale);
}
@Override
public UTF8String getUTF8String(int ordinal) {
return data.getUTF8String(offset + ordinal);
}
@Override
public byte[] getBinary(int ordinal) {
return data.getBinary(offset + ordinal);
}
@Override
public CalendarInterval getInterval(int ordinal) {
return data.getInterval(offset + ordinal);
}
@Override
public ColumnarRow getStruct(int ordinal, int numFields) {
return data.getStruct(offset + ordinal);
}
@Override
public ColumnarArray getArray(int ordinal) {
return data.getArray(offset + ordinal);
}
@Override
public ColumnarMap getMap(int ordinal) {
return data.getMap(offset + ordinal);
}
@Override
public Object get(int ordinal, DataType dataType) {
if (dataType instanceof BooleanType) {
return getBoolean(ordinal);
} else if (dataType instanceof ByteType) {
return getByte(ordinal);
} else if (dataType instanceof ShortType) {
return getShort(ordinal);
} else if (dataType instanceof IntegerType) {
return getInt(ordinal);
} else if (dataType instanceof LongType) {
return getLong(ordinal);
} else if (dataType instanceof FloatType) {
return getFloat(ordinal);
} else if (dataType instanceof DoubleType) {
return getDouble(ordinal);
} else if (dataType instanceof StringType) {
return getUTF8String(ordinal);
} else if (dataType instanceof BinaryType) {
return getBinary(ordinal);
} else if (dataType instanceof DecimalType) {
DecimalType t = (DecimalType) dataType;
return getDecimal(ordinal, t.precision(), t.scale());
} else if (dataType instanceof DateType) {
return getInt(ordinal);
} else if (dataType instanceof TimestampType) {
return getLong(ordinal);
} else if (dataType instanceof ArrayType) {
return getArray(ordinal);
} else if (dataType instanceof StructType) {
return getStruct(ordinal, ((StructType)dataType).fields().length);
} else if (dataType instanceof MapType) {
return getMap(ordinal);
} else if (dataType instanceof CalendarIntervalType) {
return getInterval(ordinal);
} else {
throw new UnsupportedOperationException("Datatype not supported " + dataType);
}
}
@Override
public void update(int ordinal, Object value) { throw new UnsupportedOperationException(); }
@Override
public void setNullAt(int ordinal) { throw new UnsupportedOperationException(); }
}