| /* |
| * 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.numeric; |
| |
| 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.SystemException; |
| |
| import org.apache.hyracks.data.std.primitive.DoublePointable; |
| import org.apache.hyracks.data.std.primitive.FloatPointable; |
| import org.apache.hyracks.data.std.primitive.LongPointable; |
| |
| public class FnRoundOperation extends AbstractNumericOperation { |
| |
| @Override |
| public void operateDecimal(XSDecimalPointable decp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_DECIMAL_TAG); |
| dOut.write(0); |
| dOut.writeLong((long) (decp.getBeforeDecimalPlaceRounded())); |
| } |
| |
| @Override |
| public void operateDouble(DoublePointable doublep, DataOutput dOut) throws SystemException, IOException { |
| double value = doublep.getDouble(); |
| if (value < 0 && value >= -0.5) { |
| value = -0.0; |
| } else if (!Double.isNaN(value) && !Double.isInfinite(value) && value != 0.0) { |
| value = Math.round(value); |
| } |
| dOut.write(ValueTag.XS_DOUBLE_TAG); |
| dOut.writeDouble(value); |
| } |
| |
| @Override |
| public void operateFloat(FloatPointable floatp, DataOutput dOut) throws SystemException, IOException { |
| float value = floatp.getFloat(); |
| if (value < 0 && value >= -0.5f) { |
| value = -0.0f; |
| } else if (!Float.isNaN(value) && !Float.isInfinite(value) && value != 0.0f) { |
| value = Math.round(value); |
| } |
| dOut.write(ValueTag.XS_FLOAT_TAG); |
| dOut.writeFloat(value); |
| } |
| |
| @Override |
| public void operateInteger(LongPointable longp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_INTEGER_TAG); |
| dOut.writeLong(longp.getLong()); |
| } |
| } |