1 | /*
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2 | * Copyright 2005 Paul Hinds
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | */
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16 | package org.tp23.antinstaller.selfextract;
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17 |
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18 | import java.io.BufferedReader;
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19 | import java.io.File;
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20 | import java.io.FileOutputStream;
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21 | import java.io.IOException;
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22 | import java.io.InputStream;
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23 | import java.io.InputStreamReader;
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24 | /**
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25 | * Copies resources from the Classpath to the filesystem replacing regex with replacement
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26 | * and correcting line endings
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27 | * @author teknopaul
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28 | *
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29 | */
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30 | public class ResourceExtractor {
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31 |
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32 | /**
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33 | * @param resource Must start with / e.g. /org/tp23/myFile.txt
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34 | * @param dest
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35 | * @throws IOException
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36 | */
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37 | public void copyResource(String resource, File dest, String regex, String replace) throws IOException{
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38 | InputStream is = this.getClass().getResourceAsStream(resource);
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39 | if(is == null){
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40 | throw new IOException("Can not find resource: " + resource);
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41 | }
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42 | InputStreamReader isr = new InputStreamReader(is);
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43 | BufferedReader br = new BufferedReader(isr);
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44 | FileOutputStream bos = new FileOutputStream(dest);
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45 | String line = null;
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46 | while((line = br.readLine()) != null){
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47 | bos.write(line.replaceAll(regex, replace).getBytes());
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48 | bos.write(System.getProperty("line.separator").getBytes());
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49 | }
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50 | bos.flush();
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51 | bos.close();
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52 | br.close();
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53 | }
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54 | /**
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55 | * @param resource Must start with / e.g. /org/tp23/myFile.txt
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56 | * @param dest
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57 | * @throws IOException
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58 | */
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59 | public void copyResourceBinary(String resource, File dest) throws IOException{
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60 | InputStream is = this.getClass().getResourceAsStream(resource);
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61 | if(is == null){
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62 | throw new IOException("Can not find resource: " + resource);
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63 | }
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64 | FileOutputStream bos = new FileOutputStream(dest);
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65 | byte[] buffer = new byte[1024];
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66 | for(int read = 0; (read = is.read(buffer)) > 0; ){
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67 | bos.write(buffer, 0, read);
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68 | }
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69 | bos.flush();
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70 | bos.close();
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71 | is.close();
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72 | }
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73 |
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74 | }
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