1 | /**************************************************************** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one * |
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3 | * or more contributor license agreements. See the NOTICE file * |
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4 | * distributed with this work for additional information * |
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5 | * regarding copyright ownership. The ASF licenses this file * |
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6 | * to you under the Apache License, Version 2.0 (the * |
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7 | * "License"); you may not use this file except in compliance * |
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8 | * with the License. You may obtain a copy of the License at * |
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9 | * * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
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11 | * * |
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12 | * Unless required by applicable law or agreed to in writing, * |
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13 | * software distributed under the License is distributed on an * |
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14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
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15 | * KIND, either express or implied. See the License for the * |
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16 | * specific language governing permissions and limitations * |
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17 | * under the License. * |
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18 | ****************************************************************/ |
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19 | |
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20 | package org.apache.james.mime4j.storage; |
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21 | |
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22 | import java.io.IOException; |
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23 | import java.io.InputStream; |
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24 | import java.io.InputStreamReader; |
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25 | import java.io.Reader; |
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26 | import java.nio.charset.Charset; |
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27 | |
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28 | import org.apache.james.mime4j.dom.TextBody; |
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29 | import org.apache.james.mime4j.storage.MultiReferenceStorage; |
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30 | import org.apache.james.mime4j.util.CharsetUtil; |
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31 | |
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32 | /** |
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33 | * Text body backed by a {@link org.apache.james.mime4j.storage.Storage}. |
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34 | */ |
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35 | class StorageTextBody extends TextBody { |
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36 | |
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37 | private MultiReferenceStorage storage; |
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38 | private Charset charset; |
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39 | |
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40 | public StorageTextBody(MultiReferenceStorage storage, Charset charset) { |
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41 | this.storage = storage; |
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42 | this.charset = charset; |
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43 | } |
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44 | |
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45 | @Override |
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46 | public String getMimeCharset() { |
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47 | return CharsetUtil.toMimeCharset(charset.name()); |
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48 | } |
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49 | |
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50 | @Override |
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51 | public Reader getReader() throws IOException { |
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52 | return new InputStreamReader(storage.getInputStream(), charset); |
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53 | } |
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54 | |
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55 | @Override |
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56 | public InputStream getInputStream() throws IOException { |
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57 | return storage.getInputStream(); |
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58 | } |
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59 | |
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60 | @Override |
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61 | public StorageTextBody copy() { |
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62 | storage.addReference(); |
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63 | return new StorageTextBody(storage, charset); |
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64 | } |
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65 | |
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66 | /** |
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67 | * Deletes the Storage that holds the content of this text body. |
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68 | * |
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69 | * @see org.apache.james.mime4j.dom.Disposable#dispose() |
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70 | */ |
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71 | @Override |
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72 | public void dispose() { |
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73 | if (storage != null) { |
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74 | storage.delete(); |
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75 | storage = null; |
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76 | } |
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77 | } |
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78 | |
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79 | } |
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