| /** |
| * 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.arrow.vector; |
| |
| import io.netty.buffer.ArrowBuf; |
| |
| import java.math.BigDecimal; |
| |
| import org.apache.arrow.memory.BufferAllocator; |
| import org.apache.arrow.vector.holders.BigIntHolder; |
| import org.apache.arrow.vector.holders.BitHolder; |
| import org.apache.arrow.vector.holders.DateHolder; |
| import org.apache.arrow.vector.holders.Decimal18Holder; |
| import org.apache.arrow.vector.holders.Decimal28SparseHolder; |
| import org.apache.arrow.vector.holders.Decimal38SparseHolder; |
| import org.apache.arrow.vector.holders.Decimal9Holder; |
| import org.apache.arrow.vector.holders.Float4Holder; |
| import org.apache.arrow.vector.holders.Float8Holder; |
| import org.apache.arrow.vector.holders.IntHolder; |
| import org.apache.arrow.vector.holders.IntervalDayHolder; |
| import org.apache.arrow.vector.holders.IntervalYearHolder; |
| import org.apache.arrow.vector.holders.NullableBitHolder; |
| import org.apache.arrow.vector.holders.TimeHolder; |
| import org.apache.arrow.vector.holders.TimeStampHolder; |
| import org.apache.arrow.vector.holders.VarCharHolder; |
| import org.apache.arrow.vector.util.DecimalUtility; |
| |
| import com.google.common.base.Charsets; |
| |
| |
| public class ValueHolderHelper { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(ValueHolderHelper.class); |
| |
| public static IntHolder getIntHolder(int value) { |
| IntHolder holder = new IntHolder(); |
| holder.value = value; |
| |
| return holder; |
| } |
| |
| public static BigIntHolder getBigIntHolder(long value) { |
| BigIntHolder holder = new BigIntHolder(); |
| holder.value = value; |
| |
| return holder; |
| } |
| |
| public static Float4Holder getFloat4Holder(float value) { |
| Float4Holder holder = new Float4Holder(); |
| holder.value = value; |
| |
| return holder; |
| } |
| |
| public static Float8Holder getFloat8Holder(double value) { |
| Float8Holder holder = new Float8Holder(); |
| holder.value = value; |
| |
| return holder; |
| } |
| |
| public static DateHolder getDateHolder(long value) { |
| DateHolder holder = new DateHolder(); |
| holder.value = value; |
| return holder; |
| } |
| |
| public static TimeHolder getTimeHolder(int value) { |
| TimeHolder holder = new TimeHolder(); |
| holder.value = value; |
| return holder; |
| } |
| |
| public static TimeStampHolder getTimeStampHolder(long value) { |
| TimeStampHolder holder = new TimeStampHolder(); |
| holder.value = value; |
| return holder; |
| } |
| |
| public static BitHolder getBitHolder(int value) { |
| BitHolder holder = new BitHolder(); |
| holder.value = value; |
| |
| return holder; |
| } |
| |
| public static NullableBitHolder getNullableBitHolder(boolean isNull, int value) { |
| NullableBitHolder holder = new NullableBitHolder(); |
| holder.isSet = isNull? 0 : 1; |
| if (! isNull) { |
| holder.value = value; |
| } |
| |
| return holder; |
| } |
| |
| public static VarCharHolder getVarCharHolder(ArrowBuf buf, String s){ |
| VarCharHolder vch = new VarCharHolder(); |
| |
| byte[] b = s.getBytes(Charsets.UTF_8); |
| vch.start = 0; |
| vch.end = b.length; |
| vch.buffer = buf.reallocIfNeeded(b.length); |
| vch.buffer.setBytes(0, b); |
| return vch; |
| } |
| |
| public static VarCharHolder getVarCharHolder(BufferAllocator a, String s){ |
| VarCharHolder vch = new VarCharHolder(); |
| |
| byte[] b = s.getBytes(Charsets.UTF_8); |
| vch.start = 0; |
| vch.end = b.length; |
| vch.buffer = a.buffer(b.length); // |
| vch.buffer.setBytes(0, b); |
| return vch; |
| } |
| |
| |
| public static IntervalYearHolder getIntervalYearHolder(int intervalYear) { |
| IntervalYearHolder holder = new IntervalYearHolder(); |
| |
| holder.value = intervalYear; |
| return holder; |
| } |
| |
| public static IntervalDayHolder getIntervalDayHolder(int days, int millis) { |
| IntervalDayHolder dch = new IntervalDayHolder(); |
| |
| dch.days = days; |
| dch.milliseconds = millis; |
| return dch; |
| } |
| |
| public static Decimal9Holder getDecimal9Holder(int decimal, int scale, int precision) { |
| Decimal9Holder dch = new Decimal9Holder(); |
| |
| dch.scale = scale; |
| dch.precision = precision; |
| dch.value = decimal; |
| |
| return dch; |
| } |
| |
| public static Decimal18Holder getDecimal18Holder(long decimal, int scale, int precision) { |
| Decimal18Holder dch = new Decimal18Holder(); |
| |
| dch.scale = scale; |
| dch.precision = precision; |
| dch.value = decimal; |
| |
| return dch; |
| } |
| |
| public static Decimal28SparseHolder getDecimal28Holder(ArrowBuf buf, String decimal) { |
| |
| Decimal28SparseHolder dch = new Decimal28SparseHolder(); |
| |
| BigDecimal bigDecimal = new BigDecimal(decimal); |
| |
| dch.scale = bigDecimal.scale(); |
| dch.precision = bigDecimal.precision(); |
| Decimal28SparseHolder.setSign(bigDecimal.signum() == -1, dch.start, dch.buffer); |
| dch.start = 0; |
| dch.buffer = buf.reallocIfNeeded(5 * DecimalUtility.INTEGER_SIZE); |
| DecimalUtility |
| .getSparseFromBigDecimal(bigDecimal, dch.buffer, dch.start, dch.scale, dch.precision, dch.nDecimalDigits); |
| |
| return dch; |
| } |
| |
| public static Decimal38SparseHolder getDecimal38Holder(ArrowBuf buf, String decimal) { |
| |
| Decimal38SparseHolder dch = new Decimal38SparseHolder(); |
| |
| BigDecimal bigDecimal = new BigDecimal(decimal); |
| |
| dch.scale = bigDecimal.scale(); |
| dch.precision = bigDecimal.precision(); |
| Decimal38SparseHolder.setSign(bigDecimal.signum() == -1, dch.start, dch.buffer); |
| dch.start = 0; |
| dch.buffer = buf.reallocIfNeeded(dch.maxPrecision * DecimalUtility.INTEGER_SIZE); |
| DecimalUtility |
| .getSparseFromBigDecimal(bigDecimal, dch.buffer, dch.start, dch.scale, dch.precision, dch.nDecimalDigits); |
| |
| return dch; |
| } |
| } |