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1 package org.apache.slide.projector.processor;
2
3 import java.util.Map  ;
4
5 import org.apache.slide.projector.Context;
6 import org.apache.slide.projector.Processor;
7 import org.apache.slide.projector.Result;
8 import org.apache.slide.projector.descriptor.NumberValueDescriptor;
9 import org.apache.slide.projector.descriptor.ParameterDescriptor;
10 import org.apache.slide.projector.descriptor.ResultDescriptor;
11 import org.apache.slide.projector.descriptor.ResultEntryDescriptor;
12 import org.apache.slide.projector.descriptor.StateDescriptor;
13 import org.apache.slide.projector.i18n.LocalizedMessage;
14 import org.apache.slide.projector.i18n.ParameterMessage;
15 import org.apache.slide.projector.value.NumberValue;
16
17 public class Calculator implements Processor {
18 private final static String FIRST_NUMBER = "firstNumber";
19 private final static String SECOND_NUMBER = "secondNumber";
20 private final static String CALCULATED_RESULT = "calculatedResult";
21
22 private final static ParameterDescriptor[] parameterDescriptors = new ParameterDescriptor[]{new ParameterDescriptor(
23 FIRST_NUMBER, new ParameterMessage(
24 "calculator/parameter/firstNumber"),
25 new NumberValueDescriptor(new Integer (0), new Integer (5)))};
26 private final static ResultDescriptor resultDescriptor = new ResultDescriptor(
27 new StateDescriptor[]{new StateDescriptor(StateDescriptor.OK,
28 new LocalizedMessage("calculator/state/ok")),},
29 new ResultEntryDescriptor[]{new ResultEntryDescriptor(
30 CALCULATED_RESULT, new LocalizedMessage(
31 "calculator/result/calculatedResult"),
32 NumberValue.CONTENT_TYPE, true)});
33
34 public Result process(Map parameter, Context context) throws Exception {
35 int firstInt = ((NumberValue) parameter.get(FIRST_NUMBER))
36 .getNumber().intValue();
37 int secondInt = ((NumberValue) parameter.get(SECOND_NUMBER))
38 .getNumber().intValue();
39 int calculatedResult = firstInt + secondInt;
40 return new Result(StateDescriptor.OK, CALCULATED_RESULT,
41 new NumberValue(new Integer (calculatedResult)));
42 }
43
44 public ParameterDescriptor[] getParameterDescriptors() {
45 return parameterDescriptors;
46 }
47
48 public ResultDescriptor getResultDescriptor() {
49 return resultDescriptor;
50 }
51 } |
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