1
22
23 package com.liferay.portlet.documentlibrary.util;
24
25 import com.artofsolving.jodconverter.DefaultDocumentFormatRegistry;
26 import com.artofsolving.jodconverter.DocumentConverter;
27 import com.artofsolving.jodconverter.DocumentFormat;
28 import com.artofsolving.jodconverter.DocumentFormatRegistry;
29 import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
30 import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
31 import com.artofsolving.jodconverter.openoffice.converter.StreamOpenOfficeDocumentConverter;
32
33 import com.liferay.portal.PortalException;
34 import com.liferay.portal.SystemException;
35 import com.liferay.portal.kernel.util.ArrayUtil;
36 import com.liferay.portal.kernel.util.StringMaker;
37 import com.liferay.portal.kernel.util.StringPool;
38 import com.liferay.portal.util.PrefsPropsUtil;
39 import com.liferay.portal.util.PropsUtil;
40 import com.liferay.portal.util.PropsValues;
41 import com.liferay.util.CollectionFactory;
42 import com.liferay.util.FileUtil;
43 import com.liferay.util.SystemProperties;
44
45 import java.io.ByteArrayOutputStream;
46 import java.io.File;
47 import java.io.FileInputStream;
48 import java.io.IOException;
49 import java.io.InputStream;
50
51 import java.util.ArrayList;
52 import java.util.List;
53 import java.util.Map;
54
55
61 public class DocumentConversionUtil {
62
63 public static InputStream convert(
64 String id, InputStream is, String sourceExtension,
65 String targetExtension)
66 throws IOException, PortalException, SystemException {
67
68 return _instance._convert(id, is, sourceExtension, targetExtension);
69 }
70
71 public static String[] getConversions(String extension) {
72 return _instance._getConversions(extension);
73 }
74
75 private DocumentConversionUtil() {
76 _conversionsMap.put("svg", _DRAWING_CONVERSIONS);
77 _conversionsMap.put("swf", _DRAWING_CONVERSIONS);
78
79 _conversionsMap.put("odp", _PRESENTATION_CONVERSIONS);
80 _conversionsMap.put("ppt", _PRESENTATION_CONVERSIONS);
81 _conversionsMap.put("sxi", _PRESENTATION_CONVERSIONS);
82
83 _conversionsMap.put("csv", _SPREADSHEET_CONVERSIONS);
84 _conversionsMap.put("ods", _SPREADSHEET_CONVERSIONS);
85 _conversionsMap.put("sxc", _SPREADSHEET_CONVERSIONS);
86 _conversionsMap.put("tsv", _SPREADSHEET_CONVERSIONS);
87 _conversionsMap.put("xls", _SPREADSHEET_CONVERSIONS);
88
89 _conversionsMap.put("doc", _TEXT_CONVERSIONS);
90 _conversionsMap.put("odt", _TEXT_CONVERSIONS);
91 _conversionsMap.put("rtf", _TEXT_CONVERSIONS);
92 _conversionsMap.put("sxw", _TEXT_CONVERSIONS);
93 _conversionsMap.put("txt", _TEXT_CONVERSIONS);
94 _conversionsMap.put("wpd", _TEXT_CONVERSIONS);
95 }
96
97 private InputStream _convert(
98 String id, InputStream is, String sourceExtension,
99 String targetExtension)
100 throws IOException, PortalException, SystemException {
101
102 if (!PrefsPropsUtil.getBoolean(
103 PropsUtil.OPENOFFICE_SERVER_ENABLED,
104 PropsValues.OPENOFFICE_SERVER_ENABLED)){
105
106 return null;
107 }
108
109 StringMaker sm = new StringMaker();
110
111 sm.append(SystemProperties.get(SystemProperties.TMP_DIR));
112 sm.append("/liferay/document_conversion/");
113 sm.append(id);
114 sm.append(StringPool.PERIOD);
115 sm.append(targetExtension);
116
117 String fileName = sm.toString();
118
119 File file = new File(fileName);
120
121 if (!file.exists()) {
122 DocumentFormatRegistry registry =
123 new DefaultDocumentFormatRegistry();
124
125 DocumentConverter converter = _getConverter(registry);
126
127 DocumentFormat inputFormat = registry.getFormatByFileExtension(
128 sourceExtension);
129
130 ByteArrayOutputStream baos = new ByteArrayOutputStream();
131
132 DocumentFormat outputFormat = registry.getFormatByFileExtension(
133 targetExtension);
134
135 converter.convert(is, inputFormat, baos, outputFormat);
136
137 FileUtil.write(file, baos.toByteArray());
138 }
139
140 return new FileInputStream(file);
141 }
142
143 private String[] _getConversions(String extension) {
144 String[] conversions = (String[])_conversionsMap.get(extension);
145
146 if (conversions == null) {
147 conversions = _DEFAULT_CONVERSIONS;
148 }
149 else {
150 if (ArrayUtil.contains(conversions, extension)) {
151 List list = new ArrayList();
152
153 for (int i = 0; i < conversions.length; i++) {
154 String conversion = conversions[i];
155
156 if (!conversion.equals(extension)) {
157 list.add(conversion);
158 }
159 }
160
161 conversions = (String[])list.toArray(new String[0]);
162 }
163 }
164
165 return conversions;
166 }
167
168 private DocumentConverter _getConverter(DocumentFormatRegistry registry)
169 throws PortalException, SystemException {
170
171 if ((_connection == null) || (_converter == null)) {
172 String host = PrefsPropsUtil.getString(
173 PropsUtil.OPENOFFICE_SERVER_HOST,
174 PropsValues.OPENOFFICE_SERVER_HOST);
175 int port = PrefsPropsUtil.getInteger(
176 PropsUtil.OPENOFFICE_SERVER_PORT,
177 PropsValues.OPENOFFICE_SERVER_PORT);
178
179 _connection = new SocketOpenOfficeConnection(host, port);
180 _converter = new StreamOpenOfficeDocumentConverter(_connection);
181 }
182
183 return _converter;
184 }
185
186 private static final String[] _DEFAULT_CONVERSIONS = new String[0];
187
188 private static final String[] _DRAWING_CONVERSIONS = new String[] {"odg"};
189
190 private static final String[] _PRESENTATION_CONVERSIONS = new String[] {
191 "odp", "pdf", "ppt", "swf", "sxi"
192 };
193
194 private static final String[] _SPREADSHEET_CONVERSIONS = new String[] {
195 "csv", "ods", "pdf", "sxc", "tsv", "xls"
196 };
197
198 private static final String[] _TEXT_CONVERSIONS = new String[] {
199 "doc", "odt", "pdf", "rtf", "sxw", "txt"
200 };
201
202 private static DocumentConversionUtil _instance =
203 new DocumentConversionUtil();
204
205 private Map _conversionsMap = CollectionFactory.getHashMap();
206 private OpenOfficeConnection _connection;
207 private DocumentConverter _converter;
208
209 }