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package org.mule.transport.file.transformers; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.transformer.simple.ObjectToByteArray; |
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import org.mule.transformer.types.DataTypeFactory; |
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import org.mule.util.ArrayUtils; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import org.apache.commons.io.IOUtils; |
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public class FileToByteArray extends ObjectToByteArray |
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{ |
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public FileToByteArray() |
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{ |
29 | 0 | super(); |
30 | 0 | registerSourceType(DataTypeFactory.create(File.class)); |
31 | 0 | registerSourceType(DataTypeFactory.BYTE_ARRAY); |
32 | 0 | } |
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@Override |
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public Object doTransform(Object src, String outputEncoding) throws TransformerException |
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{ |
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39 | 0 | if (src instanceof byte[]) |
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{ |
41 | 0 | return src; |
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} |
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44 | 0 | if (src instanceof InputStream || src instanceof String) |
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{ |
46 | 0 | return super.doTransform(src, outputEncoding); |
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} |
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else |
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{ |
50 | 0 | File file = (File) src; |
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52 | 0 | if (file == null) |
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{ |
54 | 0 | throw new TransformerException(this, new IllegalArgumentException("null file")); |
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} |
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57 | 0 | if (!file.exists()) |
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{ |
59 | 0 | throw new TransformerException(this, new FileNotFoundException(file.getPath())); |
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} |
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62 | 0 | if (file.length() == 0) |
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{ |
64 | 0 | logger.warn("File is empty: " + file.getAbsolutePath()); |
65 | 0 | return ArrayUtils.EMPTY_BYTE_ARRAY; |
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} |
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68 | 0 | FileInputStream fis = null; |
69 | 0 | byte[] bytes = null; |
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try |
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{ |
73 | 0 | fis = new FileInputStream(file); |
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76 | 0 | int length = new Long(file.length()).intValue(); |
77 | 0 | bytes = new byte[length]; |
78 | 0 | fis.read(bytes); |
79 | 0 | return bytes; |
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} |
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82 | 0 | catch (OutOfMemoryError oom) |
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{ |
84 | 0 | throw new TransformerException(this, oom); |
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} |
86 | 0 | catch (IOException e) |
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{ |
88 | 0 | throw new TransformerException(this, e); |
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} |
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finally |
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{ |
92 | 0 | IOUtils.closeQuietly(fis); |
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} |
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} |
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} |
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} |