| /* |
| * 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.hyracks.data.std.primitive.BooleanPointable; |
| import org.apache.hyracks.data.std.primitive.DoublePointable; |
| import org.apache.hyracks.data.std.primitive.FloatPointable; |
| import org.apache.hyracks.data.std.primitive.LongPointable; |
| import org.apache.hyracks.data.std.primitive.UTF8StringPointable; |
| 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.LowerCaseCharacterIterator; |
| import org.apache.vxquery.runtime.functions.strings.UTF8StringCharacterIterator; |
| |
| public class CastToBooleanOperation extends AbstractCastToOperation { |
| |
| @Override |
| public void convertBoolean(BooleanPointable boolp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BOOLEAN_TAG); |
| dOut.write(boolp.getByteArray(), boolp.getStartOffset(), boolp.getLength()); |
| } |
| |
| @Override |
| public void convertDecimal(XSDecimalPointable decp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BOOLEAN_TAG); |
| if (decp.getDecimalValue() == 0 && decp.getBeforeDecimalPlace() == 0) { |
| dOut.write(0); |
| } else { |
| dOut.write(1); |
| } |
| } |
| |
| @Override |
| public void convertDouble(DoublePointable doublep, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BOOLEAN_TAG); |
| if (Double.isNaN(doublep.getDouble()) || doublep.getDouble() == 0) { |
| dOut.write(0); |
| } else { |
| dOut.write(1); |
| } |
| } |
| |
| @Override |
| public void convertFloat(FloatPointable floatp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BOOLEAN_TAG); |
| if (Float.isNaN(floatp.getFloat()) || floatp.getFloat() == 0) { |
| dOut.write(0); |
| } else { |
| dOut.write(1); |
| } |
| } |
| |
| @Override |
| public void convertInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BOOLEAN_TAG); |
| if (longp.getLong() == 0) { |
| dOut.write(0); |
| } else { |
| dOut.write(1); |
| } |
| } |
| |
| @Override |
| public void convertString(UTF8StringPointable stringp, DataOutput dOut) throws IOException { |
| byte result = 2; |
| ICharacterIterator charIterator = new LowerCaseCharacterIterator(new UTF8StringCharacterIterator(stringp)); |
| charIterator.reset(); |
| |
| int c1 = charIterator.next(); |
| int c2 = charIterator.next(); |
| int c3 = charIterator.next(); |
| int c4 = charIterator.next(); |
| int c5 = charIterator.next(); |
| int c6 = charIterator.next(); |
| |
| if (c1 == Character.valueOf('1') && c2 == ICharacterIterator.EOS_CHAR) { |
| result = 1; |
| } else if (c1 == Character.valueOf('0') && c2 == ICharacterIterator.EOS_CHAR) { |
| result = 0; |
| } else if (c1 == Character.valueOf('t') && c2 == Character.valueOf('r') && c3 == Character.valueOf('u') |
| && c4 == Character.valueOf('e') && c5 == ICharacterIterator.EOS_CHAR) { |
| result = 1; |
| } else if (c1 == Character.valueOf('f') && c2 == Character.valueOf('a') && c3 == Character.valueOf('l') |
| && c4 == Character.valueOf('s') && c5 == Character.valueOf('e') && c6 == ICharacterIterator.EOS_CHAR) { |
| result = 0; |
| } |
| if (result == 2) { |
| throw new SystemException(ErrorCode.FORG0001); |
| } |
| dOut.write(ValueTag.XS_BOOLEAN_TAG); |
| dOut.write(result); |
| } |
| |
| @Override |
| public void convertUntypedAtomic(UTF8StringPointable stringp, DataOutput dOut) throws SystemException, IOException { |
| convertString(stringp, dOut); |
| } |
| } |