| /* |
| * 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.phoenix.schema.SortOrder; |
| |
| import com.google.common.base.Preconditions; |
| |
| public class PUnsignedFloat extends PRealNumber<PFloat> { |
| |
| public static final PUnsignedFloat INSTANCE = new PUnsignedFloat(); |
| |
| private PUnsignedFloat() { |
| super("UNSIGNED_FLOAT", 14, Float.class, new UnsignedFloatCodec(), 19); |
| } |
| |
| @Override |
| public int compareTo(Object lhs, Object rhs, PDataType rhsType) { |
| return PFloat.INSTANCE.compareTo(lhs, rhs, rhsType); |
| } |
| |
| @Override |
| public boolean isFixedWidth() { |
| return true; |
| } |
| |
| @Override |
| public Integer getByteSize() { |
| return Bytes.SIZEOF_FLOAT; |
| } |
| |
| @Override |
| public Integer getScale(Object o) { |
| return PFloat.INSTANCE.getScale(o); |
| } |
| |
| @Override |
| public Integer getMaxLength(Object o) { |
| return PFloat.INSTANCE.getMaxLength(o); |
| } |
| |
| @Override |
| public byte[] toBytes(Object object) { |
| byte[] b = new byte[Bytes.SIZEOF_FLOAT]; |
| toBytes(object, b, 0); |
| return b; |
| } |
| |
| @Override |
| public int toBytes(Object object, byte[] bytes, int offset) { |
| if (object == null) { |
| throw newIllegalDataException(this + " may not be null"); |
| } |
| return this.getCodec().encodeFloat(((Number) object).floatValue(), |
| bytes, offset); |
| } |
| |
| @Override |
| public Object toObject(String value) { |
| if (value == null || value.length() == 0) { |
| return null; |
| } |
| try { |
| Float f = Float.parseFloat(value); |
| if (f.floatValue() < 0) { |
| throw newIllegalDataException("Value may not be negative(" |
| + f + ")"); |
| } |
| return f; |
| } catch (NumberFormatException e) { |
| throw newIllegalDataException(e); |
| } |
| } |
| |
| @Override |
| public Object toObject(Object object, PDataType actualType) { |
| Float v = (Float) PFloat.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) { |
| Float v = (Float) PFloat.INSTANCE.toObject(b, o, l, actualType, sortOrder); |
| throwIfNonNegativeNumber(v); |
| return v; |
| } |
| |
| @Override |
| public boolean isCoercibleTo(PDataType targetType, Object value) { |
| return super.isCoercibleTo(targetType) || PFloat.INSTANCE.isCoercibleTo(targetType, value); |
| } |
| |
| @Override |
| public boolean isCoercibleTo(PDataType targetType) { |
| return this.equals(targetType) || PUnsignedDouble.INSTANCE.isCoercibleTo(targetType) || PFloat.INSTANCE |
| .isCoercibleTo(targetType); |
| } |
| |
| @Override |
| public int getResultSetSqlType() { |
| return PFloat.INSTANCE.getResultSetSqlType(); |
| } |
| |
| @Override |
| public Object getSampleValue(Integer maxLength, Integer arrayLength) { |
| return Math.abs((Float) PFloat.INSTANCE.getSampleValue(maxLength, arrayLength)); |
| } |
| |
| static class UnsignedFloatCodec extends PFloat.FloatCodec { |
| |
| @Override |
| public int encodeFloat(float v, byte[] b, int o) { |
| checkForSufficientLength(b, o, Bytes.SIZEOF_FLOAT); |
| if (v < 0) { |
| throw newIllegalDataException(); |
| } |
| Bytes.putFloat(b, o, v); |
| return Bytes.SIZEOF_FLOAT; |
| } |
| |
| @Override |
| public float decodeFloat(byte[] b, int o, SortOrder sortOrder) { |
| Preconditions.checkNotNull(sortOrder); |
| checkForSufficientLength(b, o, Bytes.SIZEOF_FLOAT); |
| if (sortOrder == SortOrder.DESC) { |
| b = SortOrder.invert(b, o, new byte[Bytes.SIZEOF_FLOAT], 0, Bytes.SIZEOF_FLOAT); |
| o = 0; |
| } |
| float v = Bytes.toFloat(b, o); |
| if (v < 0) { |
| throw newIllegalDataException(); |
| } |
| return v; |
| } |
| } |
| } |