| /* |
| * 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.vxquery.runtime.functions.cast; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.vxquery.datamodel.accessors.atomic.XSDecimalPointable; |
| import org.apache.vxquery.datamodel.values.ValueTag; |
| import org.apache.vxquery.exceptions.ErrorCode; |
| import org.apache.vxquery.exceptions.SystemException; |
| import org.apache.vxquery.runtime.functions.strings.ICharacterIterator; |
| import org.apache.vxquery.runtime.functions.strings.UTF8StringCharacterIterator; |
| |
| import org.apache.hyracks.data.std.api.INumeric; |
| import org.apache.hyracks.data.std.primitive.BooleanPointable; |
| import org.apache.hyracks.data.std.primitive.BytePointable; |
| import org.apache.hyracks.data.std.primitive.DoublePointable; |
| import org.apache.hyracks.data.std.primitive.FloatPointable; |
| import org.apache.hyracks.data.std.primitive.IntegerPointable; |
| import org.apache.hyracks.data.std.primitive.LongPointable; |
| import org.apache.hyracks.data.std.primitive.ShortPointable; |
| import org.apache.hyracks.data.std.primitive.UTF8StringPointable; |
| |
| public class CastToShortOperation extends AbstractCastToOperation { |
| boolean negativeAllowed = true; |
| int returnTag = ValueTag.XS_SHORT_TAG; |
| |
| @Override |
| public void convertBoolean(BooleanPointable boolp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(returnTag); |
| dOut.writeShort((short) (boolp.getBoolean() ? 1 : 0)); |
| } |
| |
| @Override |
| public void convertDecimal(XSDecimalPointable decp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(decp, dOut); |
| } |
| |
| @Override |
| public void convertDouble(DoublePointable doublep, DataOutput dOut) throws SystemException, IOException { |
| double doubleValue = doublep.getDouble(); |
| if (Double.isInfinite(doubleValue) || Double.isNaN(doubleValue)) { |
| throw new SystemException(ErrorCode.FOCA0002); |
| } |
| if (doubleValue > Short.MAX_VALUE || doubleValue < Short.MIN_VALUE) { |
| throw new SystemException(ErrorCode.FOCA0003); |
| } |
| if (doublep.byteValue() < 0 && !negativeAllowed) { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| dOut.write(returnTag); |
| dOut.writeShort(doublep.shortValue()); |
| } |
| |
| @Override |
| public void convertFloat(FloatPointable floatp, DataOutput dOut) throws SystemException, IOException { |
| float floatValue = floatp.getFloat(); |
| if (Float.isInfinite(floatValue) || Float.isNaN(floatValue)) { |
| throw new SystemException(ErrorCode.FOCA0002); |
| } |
| if (floatValue > Short.MAX_VALUE || floatValue < Short.MIN_VALUE) { |
| throw new SystemException(ErrorCode.FOCA0003); |
| } |
| if (floatp.byteValue() < 0 && !negativeAllowed) { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| dOut.write(returnTag); |
| dOut.writeShort(floatp.shortValue()); |
| } |
| |
| @Override |
| public void convertInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| @Override |
| public void convertString(UTF8StringPointable stringp, DataOutput dOut) throws SystemException, IOException { |
| ICharacterIterator charIterator = new UTF8StringCharacterIterator(stringp); |
| charIterator.reset(); |
| long value = 0; |
| int c = 0; |
| boolean negative = false; |
| long limit = -Short.MAX_VALUE; |
| |
| // Check the first character. |
| c = charIterator.next(); |
| if (c == Character.valueOf('-') && negativeAllowed) { |
| negative = true; |
| c = charIterator.next(); |
| limit = Short.MIN_VALUE; |
| } |
| |
| // Read the numeric value. |
| do { |
| if (Character.isDigit(c)) { |
| if (value < limit + Character.getNumericValue(c)) { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| value = value * 10 - Character.getNumericValue(c); |
| } else { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| } while ((c = charIterator.next()) != ICharacterIterator.EOS_CHAR); |
| |
| dOut.write(returnTag); |
| dOut.writeShort((short) (negative ? value : -value)); |
| } |
| |
| @Override |
| public void convertUntypedAtomic(UTF8StringPointable stringp, DataOutput dOut) throws SystemException, IOException { |
| convertString(stringp, dOut); |
| } |
| |
| /** |
| * Derived Datatypes |
| */ |
| public void convertByte(BytePointable bytep, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(bytep, dOut); |
| } |
| |
| public void convertInt(IntegerPointable intp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(intp, dOut); |
| } |
| |
| public void convertLong(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertNegativeInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertNonNegativeInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertNonPositiveInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertPositiveInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertShort(ShortPointable shortp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(shortp, dOut); |
| } |
| |
| public void convertUnsignedByte(ShortPointable shortp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(shortp, dOut); |
| } |
| |
| public void convertUnsignedInt(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertUnsignedLong(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(longp, dOut); |
| } |
| |
| public void convertUnsignedShort(IntegerPointable intp, DataOutput dOut) throws SystemException, IOException { |
| writeShortValue(intp, dOut); |
| } |
| |
| private void writeShortValue(INumeric numericp, DataOutput dOut) throws SystemException, IOException { |
| if (numericp.longValue() > Short.MAX_VALUE || numericp.longValue() < Short.MIN_VALUE) { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| if (numericp.shortValue() < 0 && !negativeAllowed) { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| |
| dOut.write(returnTag); |
| dOut.writeShort(numericp.shortValue()); |
| } |
| } |