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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.math.fraction;
19  
20  import org.apache.commons.math.ConvergenceException;
21  
22  /**
23   * Error thrown when a double value cannot be converted to a fraction
24   * in the allowed number of iterations.
25   *
26   * @version $Revision: 620312 $ $Date: 2008-02-10 12:28:59 -0700 (Sun, 10 Feb 2008) $
27   * @since 1.2
28   */
29  public class FractionConversionException extends ConvergenceException {
30  
31      /** Serializable version identifier. */
32      private static final long serialVersionUID = -4661812640132576263L;
33  
34      /**
35       * Constructs an exception with specified formatted detail message.
36       * Message formatting is delegated to {@link java.text.MessageFormat}.
37       * @param value double value to convert
38       * @param maxIterations maximal number of iterations allowed
39       */
40      public FractionConversionException(double value, int maxIterations) {
41          super("Unable to convert {0} to fraction after {1} iterations",
42                new Object[] { new Double(value), new Integer(maxIterations) });
43      }
44  
45      /**
46       * Constructs an exception with specified formatted detail message.
47       * Message formatting is delegated to {@link java.text.MessageFormat}.
48       * @param value double value to convert
49       * @param p current numerator 
50       * @param q current denominator
51       */
52      public FractionConversionException(double value, long p, long q) {
53          super("Overflow trying to convert {0} to fraction ({1}/{2})",
54                new Object[] { new Double(value), new Long(p), new Long(q) });
55      }
56  
57  }