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package org.mule.transformer.simple; |
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import org.mule.api.transformer.DataType; |
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import org.mule.api.transformer.DiscoverableTransformer; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.transformer.AbstractTransformer; |
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import org.mule.transformer.types.DataTypeFactory; |
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import org.mule.transformer.types.SimpleDataType; |
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import org.mule.util.NumberUtils; |
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import java.text.NumberFormat; |
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public class StringToNumber extends AbstractTransformer implements DiscoverableTransformer |
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{ |
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private NumberFormat numberFormat; |
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35 | 0 | private int priorityWeighting = DiscoverableTransformer.DEFAULT_PRIORITY_WEIGHTING + 1; |
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public StringToNumber() |
38 | 0 | { |
39 | 0 | registerSourceType(new SimpleDataType<Object>(String.class)); |
40 | 0 | setReturnDataType(DataTypeFactory.create(Number.class)); |
41 | 0 | } |
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public StringToNumber(NumberFormat numberFormat) |
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{ |
45 | 0 | this(); |
46 | 0 | this.numberFormat = numberFormat; |
47 | 0 | } |
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@SuppressWarnings("unchecked") |
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@Override |
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public Object doTransform(Object src, String encoding) throws TransformerException |
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{ |
53 | 0 | if (src == null) |
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{ |
55 | 0 | return null; |
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} |
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else |
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{ |
59 | 0 | if (numberFormat != null) |
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{ |
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try |
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{ |
63 | 0 | return NumberUtils.convertNumberToTargetClass(numberFormat.parse((String) src), |
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getReturnClass()); |
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} |
66 | 0 | catch (Exception e) |
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{ |
68 | 0 | throw new TransformerException(this, e); |
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} |
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} |
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else |
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{ |
73 | 0 | return NumberUtils.parseNumber((String) src, getReturnClass()); |
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} |
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} |
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} |
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@SuppressWarnings({"unchecked"}) |
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@Override |
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public Class<? extends Number> getReturnClass() |
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{ |
82 | 0 | return (Class<Number>) super.getReturnDataType().getType(); |
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} |
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@Override |
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public void setReturnDataType(DataType<?> type) |
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{ |
88 | 0 | if (!Number.class.isAssignableFrom(type.getType())) |
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{ |
90 | 0 | throw new IllegalArgumentException("This transformer only supports Number return types."); |
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} |
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else |
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{ |
94 | 0 | super.setReturnDataType(type); |
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} |
96 | 0 | } |
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public int getPriorityWeighting() |
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{ |
100 | 0 | return priorityWeighting; |
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} |
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public void setPriorityWeighting(int priorityWeighting) |
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{ |
105 | 0 | this.priorityWeighting = priorityWeighting; |
106 | 0 | } |
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} |