001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.documentlibrary.util;
016    
017    import com.liferay.portal.kernel.repository.model.FileVersion;
018    import com.liferay.portlet.documentlibrary.model.DLProcessorConstants;
019    
020    import java.io.InputStream;
021    
022    import java.util.Properties;
023    
024    /**
025     * @author Sergio Gonz??lez
026     */
027    public class PDFProcessorUtil {
028    
029            public static void generateImages(FileVersion fileVersion)
030                    throws Exception {
031    
032                    PDFProcessor pdfProcessor = getPDFProcessor();
033    
034                    if (pdfProcessor != null) {
035                            pdfProcessor.generateImages(fileVersion);
036                    }
037            }
038    
039            public static String getGlobalSearchPath() throws Exception {
040                    PDFProcessor pdfProcessor = getPDFProcessor();
041    
042                    if (pdfProcessor == null) {
043                            return null;
044                    }
045    
046                    return pdfProcessor.getGlobalSearchPath();
047            }
048    
049            public static PDFProcessor getPDFProcessor() {
050                    return (PDFProcessor)DLProcessorRegistryUtil.getDLProcessor(
051                            DLProcessorConstants.PDF_PROCESSOR);
052            }
053    
054            public static InputStream getPreviewAsStream(
055                            FileVersion fileVersion, int index)
056                    throws Exception {
057    
058                    PDFProcessor pdfProcessor = getPDFProcessor();
059    
060                    if (pdfProcessor == null) {
061                            return null;
062                    }
063    
064                    return pdfProcessor.getPreviewAsStream(fileVersion, index);
065            }
066    
067            public static int getPreviewFileCount(FileVersion fileVersion) {
068                    PDFProcessor pdfProcessor = getPDFProcessor();
069    
070                    if (pdfProcessor == null) {
071                            return 0;
072                    }
073    
074                    return pdfProcessor.getPreviewFileCount(fileVersion);
075            }
076    
077            public static long getPreviewFileSize(FileVersion fileVersion, int index)
078                    throws Exception {
079    
080                    PDFProcessor pdfProcessor = getPDFProcessor();
081    
082                    if (pdfProcessor == null) {
083                            return 0;
084                    }
085    
086                    return pdfProcessor.getPreviewFileSize(fileVersion, index);
087            }
088    
089            public static Properties getResourceLimitsProperties() throws Exception {
090                    PDFProcessor pdfProcessor = getPDFProcessor();
091    
092                    if (pdfProcessor == null) {
093                            return null;
094                    }
095    
096                    return pdfProcessor.getResourceLimitsProperties();
097            }
098    
099            public static InputStream getThumbnailAsStream(
100                            FileVersion fileVersion, int index)
101                    throws Exception {
102    
103                    PDFProcessor pdfProcessor = getPDFProcessor();
104    
105                    if (pdfProcessor == null) {
106                            return null;
107                    }
108    
109                    return pdfProcessor.getThumbnailAsStream(fileVersion, index);
110            }
111    
112            public static long getThumbnailFileSize(FileVersion fileVersion, int index)
113                    throws Exception {
114    
115                    PDFProcessor pdfProcessor = getPDFProcessor();
116    
117                    if (pdfProcessor == null) {
118                            return 0;
119                    }
120    
121                    return pdfProcessor.getThumbnailFileSize(fileVersion, index);
122            }
123    
124            public static boolean hasImages(FileVersion fileVersion) {
125                    PDFProcessor pdfProcessor = getPDFProcessor();
126    
127                    if (pdfProcessor == null) {
128                            return false;
129                    }
130    
131                    return pdfProcessor.hasImages(fileVersion);
132            }
133    
134            public static boolean isDocumentSupported(FileVersion fileVersion) {
135                    PDFProcessor pdfProcessor = getPDFProcessor();
136    
137                    if (pdfProcessor == null) {
138                            return false;
139                    }
140    
141                    return pdfProcessor.isDocumentSupported(fileVersion);
142            }
143    
144            public static boolean isDocumentSupported(String mimeType) {
145                    PDFProcessor pdfProcessor = getPDFProcessor();
146    
147                    if (pdfProcessor == null) {
148                            return false;
149                    }
150    
151                    return pdfProcessor.isDocumentSupported(mimeType);
152            }
153    
154            public static boolean isImageMagickEnabled() throws Exception {
155                    PDFProcessor pdfProcessor = getPDFProcessor();
156    
157                    if (pdfProcessor == null) {
158                            return false;
159                    }
160    
161                    return pdfProcessor.isImageMagickEnabled();
162            }
163    
164            public static boolean isSupported(String mimeType) {
165                    PDFProcessor pdfProcessor = getPDFProcessor();
166    
167                    if (pdfProcessor == null) {
168                            return false;
169                    }
170    
171                    return pdfProcessor.isSupported(mimeType);
172            }
173    
174            public static void reset() throws Exception {
175                    PDFProcessor pdfProcessor = getPDFProcessor();
176    
177                    if (pdfProcessor != null) {
178                            getPDFProcessor().reset();
179                    }
180            }
181    
182            public static void trigger(FileVersion fileVersion) {
183                    PDFProcessor pdfProcessor = getPDFProcessor();
184    
185                    if (pdfProcessor != null) {
186                            getPDFProcessor().trigger(fileVersion);
187                    }
188            }
189    
190            /**
191             * @deprecated
192             */
193            public void setPDFProcessor(PDFProcessor pdfProcessor) {
194            }
195    
196    }