/* * 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 com.google.common.base.Preconditions; import com.google.common.primitives.Doubles; import com.google.common.primitives.Longs; import org.apache.hadoop.hbase.util.Bytes; import org.apache.hadoop.hbase.util.Order; import org.apache.phoenix.schema.SortOrder; import java.math.BigDecimal; /** * 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 PDataType<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 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; } } }