+++ /dev/null
-/* ====================================================================
- 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.poi.ss.examples.formula;
-
-import org.apache.poi.ss.formula.OperationEvaluationContext ;
-import org.apache.poi.ss.formula.eval.ErrorEval ;
-import org.apache.poi.ss.formula.eval.EvaluationException ;
-import org.apache.poi.ss.formula.eval.NumberEval ;
-import org.apache.poi.ss.formula.eval.OperandResolver ;
-import org.apache.poi.ss.formula.eval.ValueEval ;
-import org.apache.poi.ss.formula.functions.FreeRefFunction ;
-
-/**
- * A simple user-defined function to calculate principal and interest.
- *
- * @author Jon Svede ( jon [at] loquatic [dot] com )
- * @author Brian Bush ( brian [dot] bush [at] nrel [dot] gov )
- *
- */
-public class CalculateMortgage implements FreeRefFunction {
-
- public ValueEval evaluate( ValueEval[] args, OperationEvaluationContext ec ) {
-
- // verify that we have enough data
- if (args.length != 3) {
- return ErrorEval.VALUE_INVALID;
- }
-
- // declare doubles for values
- double principal, rate, years, result;
- try {
- // extract values as ValueEval
- ValueEval v1 = OperandResolver.getSingleValue( args[0],
- ec.getRowIndex(),
- ec.getColumnIndex() ) ;
- ValueEval v2 = OperandResolver.getSingleValue( args[1],
- ec.getRowIndex(),
- ec.getColumnIndex() ) ;
- ValueEval v3 = OperandResolver.getSingleValue( args[2],
- ec.getRowIndex(),
- ec.getColumnIndex() ) ;
-
- // get data as doubles
- principal = OperandResolver.coerceValueToDouble( v1 ) ;
- rate = OperandResolver.coerceValueToDouble( v2 ) ;
- years = OperandResolver.coerceValueToDouble( v3 ) ;
-
- result = calculateMortgagePayment( principal, rate, years ) ;
- System.out.println( "Result = " + result ) ;
-
- checkValue(result);
-
- } catch (EvaluationException e) {
- return e.getErrorEval();
- }
-
- return new NumberEval( result ) ;
- }
-
- public double calculateMortgagePayment( double p, double r, double y ) {
- double i = r / 12 ;
- double n = y * 12 ;
-
- double principalAndInterest =
- p * (( i * Math.pow((1 + i),n ) ) / ( Math.pow((1 + i),n) - 1)) ;
-
- return principalAndInterest ;
- }
- /**
- * Excel does not support infinities and NaNs, rather, it gives a #NUM! error in these cases
- *
- * @throws EvaluationException (#NUM!) if <tt>result</tt> is <tt>NaN</> or <tt>Infinity</tt>
- */
- private void checkValue(double result) throws EvaluationException {
- if (Double.isNaN(result) || Double.isInfinite(result)) {
- throw new EvaluationException(ErrorEval.NUM_ERROR);
- }
- }
-}
--- /dev/null
+/* ====================================================================
+ 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.poi.ss.examples.formula;
+
+import org.apache.poi.ss.formula.OperationEvaluationContext ;
+import org.apache.poi.ss.formula.eval.ErrorEval ;
+import org.apache.poi.ss.formula.eval.EvaluationException ;
+import org.apache.poi.ss.formula.eval.NumberEval ;
+import org.apache.poi.ss.formula.eval.OperandResolver ;
+import org.apache.poi.ss.formula.eval.ValueEval ;
+import org.apache.poi.ss.formula.functions.FreeRefFunction ;
+
+/**
+ * A simple user-defined function to calculate principal and interest.
+ *
+ * Used by {@link org.apache.poi.ss.excelant.util.TestExcelAntWorkbookUtil}.
+ *
+ * @author Jon Svede ( jon [at] loquatic [dot] com )
+ * @author Brian Bush ( brian [dot] bush [at] nrel [dot] gov )
+ *
+ */
+public class CalculateMortgageFunction implements FreeRefFunction {
+
+ public ValueEval evaluate( ValueEval[] args, OperationEvaluationContext ec ) {
+
+ // verify that we have enough data
+ if (args.length != 3) {
+ return ErrorEval.VALUE_INVALID;
+ }
+
+ // declare doubles for values
+ double principal, rate, years, result;
+ try {
+ // extract values as ValueEval
+ ValueEval v1 = OperandResolver.getSingleValue( args[0],
+ ec.getRowIndex(),
+ ec.getColumnIndex() ) ;
+ ValueEval v2 = OperandResolver.getSingleValue( args[1],
+ ec.getRowIndex(),
+ ec.getColumnIndex() ) ;
+ ValueEval v3 = OperandResolver.getSingleValue( args[2],
+ ec.getRowIndex(),
+ ec.getColumnIndex() ) ;
+
+ // get data as doubles
+ principal = OperandResolver.coerceValueToDouble( v1 ) ;
+ rate = OperandResolver.coerceValueToDouble( v2 ) ;
+ years = OperandResolver.coerceValueToDouble( v3 ) ;
+
+ result = calculateMortgagePayment( principal, rate, years ) ;
+ System.out.println( "Result = " + result ) ;
+
+ checkValue(result);
+
+ } catch (EvaluationException e) {
+ return e.getErrorEval();
+ }
+
+ return new NumberEval( result ) ;
+ }
+
+ public double calculateMortgagePayment( double p, double r, double y ) {
+ double i = r / 12 ;
+ double n = y * 12 ;
+
+ double principalAndInterest =
+ p * (( i * Math.pow((1 + i),n ) ) / ( Math.pow((1 + i),n) - 1)) ;
+
+ return principalAndInterest ;
+ }
+ /**
+ * Excel does not support infinities and NaNs, rather, it gives a #NUM! error in these cases
+ *
+ * @throws EvaluationException (#NUM!) if <tt>result</tt> is <tt>NaN</> or <tt>Infinity</tt>
+ */
+ private void checkValue(double result) throws EvaluationException {
+ if (Double.isNaN(result) || Double.isInfinite(result)) {
+ throw new EvaluationException(ErrorEval.NUM_ERROR);
+ }
+ }
+}
import junit.framework.TestCase;
-import org.apache.poi.ss.examples.formula.CalculateMortgage;
+import org.apache.poi.ss.examples.formula.CalculateMortgageFunction;
import org.apache.poi.ss.formula.udf.UDFFinder;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Workbook;
assertNotNull( fixture ) ;
- fixture.addFunction("h2_ZFactor", new CalculateMortgage() ) ;
+ fixture.addFunction("h2_ZFactor", new CalculateMortgageFunction() ) ;
UDFFinder functions = fixture.getFunctions() ;
+++ /dev/null
-# 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.
-
-log4j.debug=false
-
-log4j.rootLogger=INFO,Stdout
-
-log4j.appender.Stdout=org.apache.log4j.ConsoleAppender
-log4j.appender.Stdout.layout=org.apache.log4j.PatternLayout
-log4j.appender.Stdout.layout.conversionPattern=%-5p - %-26.26c{1} - %m\n
-
-log4j.org.apache.poi=DEBUG
\ No newline at end of file
projects / poi.git / commitdiff