| /* |
| * 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.phoenix.schema.types; |
| |
| import java.math.BigDecimal; |
| |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.Order; |
| import org.apache.phoenix.schema.SortOrder; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.primitives.Doubles; |
| import com.google.common.primitives.Longs; |
| |
| /** |
| * Unsigned long type that restricts values to be from 0 to {@link Long#MAX_VALUE} |
| * inclusive. May be used to map to existing HTable values created through |
| * {@link org.apache.hadoop.hbase.util.Bytes#toBytes(long)} |
| * as long as all values are non negative (the leading sign bit of negative numbers would cause |
| * them to sort ahead of positive numbers when they're used as part of the row key when using the |
| * HBase utility methods). |
| */ |
| public class PUnsignedLong extends PWholeNumber<Long> { |
| |
| public static final PUnsignedLong INSTANCE = new PUnsignedLong(); |
| |
| private PUnsignedLong() { |
| super("UNSIGNED_LONG", 10 /* no constant available in Types */, Long.class, |
| new UnsignedLongCodec(), 15); |
| } |
| |
| @Override |
| public boolean isOrderPreserving() { |
| return true; |
| } |
| |
| @Override |
| public Order getOrder() { |
| return Order.ASCENDING; |
| } |
| |
| @Override |
| public boolean isSkippable() { |
| return true; |
| } |
| |
| @Override |
| public Integer getScale(Object o) { |
| return ZERO; |
| } |
| |
| @Override |
| public byte[] toBytes(Object object) { |
| byte[] b = new byte[Bytes.SIZEOF_LONG]; |
| toBytes(object, b, 0); |
| return b; |
| } |
| |
| @Override |
| public int toBytes(Object object, byte[] b, int o) { |
| if (object == null) { |
| throw newIllegalDataException(this + " may not be null"); |
| } |
| return this.getCodec().encodeLong(((Number) object).longValue(), b, o); |
| } |
| |
| @Override |
| public Object toObject(Object object, PDataType actualType) { |
| Long v = (Long) PLong.INSTANCE.toObject(object, actualType); |
| throwIfNonNegativeNumber(v); |
| return v; |
| } |
| |
| @Override |
| public Object toObject(byte[] b, int o, int l, PDataType actualType, SortOrder sortOrder, |
| Integer maxLength, Integer scale) { |
| Long v = (Long) PLong.INSTANCE.toObject(b, o, l, actualType, sortOrder); |
| throwIfNonNegativeNumber(v); |
| return v; |
| } |
| |
| @Override |
| public boolean isCastableTo(PDataType targetType) { |
| return super.isCastableTo(targetType) || targetType.isCoercibleTo(PTimestamp.INSTANCE); |
| } |
| |
| @Override |
| public boolean isCoercibleTo(PDataType targetType) { |
| return targetType == this || targetType == PUnsignedDouble.INSTANCE || PLong.INSTANCE |
| .isCoercibleTo(targetType); |
| } |
| |
| @Override |
| public boolean isCoercibleTo(PDataType targetType, Object value) { |
| return super.isCoercibleTo(targetType, value) || PLong.INSTANCE.isCoercibleTo(targetType, value); |
| } |
| |
| @Override |
| public boolean isFixedWidth() { |
| return true; |
| } |
| |
| @Override |
| public Integer getByteSize() { |
| return Bytes.SIZEOF_LONG; |
| } |
| |
| @Override |
| public int compareTo(Object lhs, Object rhs, PDataType rhsType) { |
| if (rhsType == PDecimal.INSTANCE) { |
| return -((BigDecimal) rhs).compareTo(BigDecimal.valueOf(((Number) lhs).longValue())); |
| } else if (equalsAny(rhsType, PDouble.INSTANCE, PFloat.INSTANCE, PUnsignedDouble.INSTANCE, |
| PUnsignedFloat.INSTANCE)) { |
| return Doubles.compare(((Number) lhs).doubleValue(), ((Number) rhs).doubleValue()); |
| } |
| return Longs.compare(((Number) lhs).longValue(), ((Number) rhs).longValue()); |
| } |
| |
| @Override |
| public boolean isComparableTo(PDataType targetType) { |
| return PDecimal.INSTANCE.isComparableTo(targetType); |
| } |
| |
| @Override |
| public Object toObject(String value) { |
| if (value == null || value.length() == 0) { |
| return null; |
| } |
| try { |
| Long l = Long.parseLong(value); |
| if (l.longValue() < 0) { |
| throw newIllegalDataException("Value may not be negative(" + l + ")"); |
| } |
| return l; |
| } catch (NumberFormatException e) { |
| throw newIllegalDataException(e); |
| } |
| } |
| |
| @Override |
| public int getResultSetSqlType() { |
| return PLong.INSTANCE.getResultSetSqlType(); |
| } |
| |
| @Override |
| public Object getSampleValue(Integer maxLength, Integer arrayLength) { |
| return Math.abs((Long) PLong.INSTANCE.getSampleValue(maxLength, arrayLength)); |
| } |
| |
| static class UnsignedLongCodec extends PLong.LongCodec { |
| |
| @Override |
| public long decodeLong(byte[] b, int o, SortOrder sortOrder) { |
| Preconditions.checkNotNull(sortOrder); |
| checkForSufficientLength(b, o, Bytes.SIZEOF_LONG); |
| long v = 0; |
| if (sortOrder == SortOrder.ASC) { |
| for (int i = o; i < o + Bytes.SIZEOF_LONG; i++) { |
| v <<= 8; |
| v ^= b[i] & 0xFF; |
| } |
| } else { |
| for (int i = o; i < o + Bytes.SIZEOF_LONG; i++) { |
| v <<= 8; |
| v ^= (b[i] & 0xFF) ^ 0xFF; |
| } |
| } |
| if (v < 0) { |
| throw newIllegalDataException(); |
| } |
| return v; |
| } |
| |
| @Override |
| public int encodeLong(long v, byte[] b, int o) { |
| checkForSufficientLength(b, o, Bytes.SIZEOF_LONG); |
| if (v < 0) { |
| throw newIllegalDataException(); |
| } |
| Bytes.putLong(b, o, v); |
| return Bytes.SIZEOF_LONG; |
| } |
| } |
| } |