/* * 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 org.apache.hadoop.hbase.util.Bytes; import org.apache.hadoop.hbase.util.Order; import org.apache.phoenix.schema.SortOrder; /** * Unsigned integer type that restricts values to be from 0 to {@link Integer#MAX_VALUE} * inclusive. May be used to map to existing HTable values created through * {@link org.apache.hadoop.hbase.util.Bytes#toBytes(int)} * 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 PUnsignedInt extends PDataType<Integer> { public static final PUnsignedInt INSTANCE = new PUnsignedInt(); private PUnsignedInt() { super("UNSIGNED_INT", 9 /* no constant available in Types */, Integer.class, new UnsignedIntCodec(), 16); } @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_INT]; 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().encodeInt(((Number) object).intValue(), b, o); } @Override public Object toObject(Object object, PDataType actualType) { Integer v = (Integer) PInteger.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) { Integer v = (Integer) PInteger.INSTANCE.toObject(b, o, l, actualType, sortOrder); throwIfNonNegativeNumber(v); return v; } @Override public boolean isCoercibleTo(PDataType targetType) { return targetType.equals(this) || targetType.equals(PUnsignedFloat.INSTANCE) || PUnsignedLong.INSTANCE.isCoercibleTo(targetType) || PInteger.INSTANCE.isCoercibleTo(targetType); } @Override public boolean isCoercibleTo(PDataType targetType, Object value) { return super.isCoercibleTo(targetType, value) || PInteger.INSTANCE .isCoercibleTo(targetType, value); } @Override public boolean isFixedWidth() { return true; } @Override public Integer getByteSize() { return Bytes.SIZEOF_INT; } @Override public int compareTo(Object lhs, Object rhs, PDataType rhsType) { return PLong.INSTANCE.compareTo(lhs, rhs, rhsType); } @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 { Integer i = Integer.parseInt(value); if (i.intValue() < 0) { throw newIllegalDataException("Value may not be negative(" + i + ")"); } return i; } catch (NumberFormatException e) { throw newIllegalDataException(e); } } @Override public int getResultSetSqlType() { return PInteger.INSTANCE.getResultSetSqlType(); } @Override public Object getSampleValue(Integer maxLength, Integer arrayLength) { return Math.abs((Integer) PInteger.INSTANCE.getSampleValue(maxLength, arrayLength)); } static class UnsignedIntCodec extends PInteger.IntCodec { @Override public int decodeInt(byte[] b, int o, SortOrder sortOrder) { Preconditions.checkNotNull(sortOrder); checkForSufficientLength(b, o, Bytes.SIZEOF_INT); if (sortOrder == SortOrder.DESC) { b = SortOrder.invert(b, o, new byte[Bytes.SIZEOF_INT], 0, Bytes.SIZEOF_INT); } int v = Bytes.toInt(b, o); if (v < 0) { throw newIllegalDataException(); } return v; } @Override public int encodeInt(int v, byte[] b, int o) { checkForSufficientLength(b, o, Bytes.SIZEOF_INT); if (v < 0) { throw newIllegalDataException(); } Bytes.putInt(b, o, v); return Bytes.SIZEOF_INT; } } }