svn-gvsig-desktop / tags / v1_1_Build_1006 / libraries / libCq CMS for java.old / src / org / cresques / io / ZipFileFolder.java @ 12458
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1 | 2 | luisw | /*
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2 | 2809 | nacho | * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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3 | 2 | luisw | *
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4 | 2809 | nacho | * Copyright (C) 2004-5.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * cresques@gmail.com
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23 | 2 | luisw | */
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24 | package org.cresques.io; |
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25 | |||
26 | import java.io.IOException; |
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27 | import java.io.InputStream; |
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28 | 2809 | nacho | |
29 | 2 | luisw | import java.util.Enumeration; |
30 | import java.util.zip.ZipEntry; |
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31 | import java.util.zip.ZipFile; |
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32 | |||
33 | 2809 | nacho | |
34 | 2 | luisw | /**
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35 | * @author "Luis W. Sevilla" <sevilla_lui@gva.es>* @author administrador
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36 | */
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37 | 2809 | nacho | public class ZipFileFolder extends FileFolder { |
38 | String zName = null; |
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39 | public ZipFile file = null; |
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40 | 2 | luisw | |
41 | 2809 | nacho | public ZipFileFolder() {
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42 | super();
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43 | } |
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44 | |||
45 | /**
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46 | * Constructor.
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47 | *
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48 | * @param fname
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49 | */
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50 | public ZipFileFolder(String fName) throws IOException { |
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51 | fName = DataSource.normalize(fName);
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52 | |||
53 | if (isUrl(fName)) {
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54 | zName = getZName(fName); |
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55 | } else {
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56 | zName = fName; |
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57 | } |
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58 | |||
59 | file = new ZipFile(zName); |
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60 | } |
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61 | |||
62 | /**
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63 | * Analiza un nombre de fichero en formato zip://zipname.zip?file.ext
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64 | * @param urlName
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65 | */
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66 | public static boolean isUrl(String name) { |
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67 | String str = name.substring(0, 3); |
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68 | str.toLowerCase(); |
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69 | |||
70 | if (str.compareTo("zip") == 0) { |
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71 | return true; |
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72 | } |
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73 | |||
74 | return false; |
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75 | } |
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76 | |||
77 | private String getZName(String urlName) { |
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78 | return urlName.substring(6, urlName.indexOf("?")); |
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79 | } |
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80 | |||
81 | private String getFName(String urlName) { |
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82 | return urlName.substring(urlName.indexOf("?") + 1); |
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83 | } |
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84 | |||
85 | public ZipEntry getZipEntry(String fName) throws IOException { |
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86 | InputStream is = null; |
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87 | |||
88 | if (isUrl(fName)) {
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89 | fName = getFName(fName); |
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90 | } |
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91 | |||
92 | return file.getEntry(fName);
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93 | } |
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94 | |||
95 | public InputStream getInputStream(String fName) throws IOException { |
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96 | return file.getInputStream(getZipEntry(fName));
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97 | } |
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98 | |||
99 | public InputStream getInputStream(ZipEntry ze) throws IOException { |
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100 | return file.getInputStream(ze);
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101 | } |
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102 | |||
103 | public int count() { |
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104 | return file.size();
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105 | } |
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106 | |||
107 | public Enumeration entries() { |
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108 | return file.entries();
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109 | } |
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110 | 2 | luisw | } |