| /* |
| * 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 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; |
| |
| /** |
| * 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 PWholeNumber<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); |
| o = 0; |
| } |
| 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; |
| } |
| } |
| } |