001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.runtime.img; 020 021import java.io.IOException; 022import java.io.InputStream; 023import java.util.Iterator; 024 025import lucee.commons.io.IOUtil; 026import lucee.commons.io.res.Resource; 027import lucee.commons.lang.ExceptionUtil; 028import lucee.runtime.exp.PageException; 029import lucee.runtime.type.KeyImpl; 030import lucee.runtime.type.Struct; 031import lucee.runtime.type.StructImpl; 032 033import com.drew.imaging.jpeg.JpegMetadataReader; 034import com.drew.imaging.jpeg.JpegProcessingException; 035import com.drew.imaging.tiff.TiffMetadataReader; 036import com.drew.metadata.Directory; 037import com.drew.metadata.Metadata; 038import com.drew.metadata.MetadataException; 039import com.drew.metadata.Tag; 040 041public class ImageMetaDrew { 042 043 /** 044 * adds information about a image to the given struct 045 * @param info 046 * @throws PageException 047 * @throws IOException 048 * @throws MetadataException 049 * @throws JpegProcessingException 050 */ 051 public static void addInfo(String format, Resource res, Struct info) { 052 if("jpg".equalsIgnoreCase(format))jpg(res, info); 053 else if("tiff".equalsIgnoreCase(format))tiff(res, info); 054 055 } 056 057 private static void jpg(Resource res,Struct info) { 058 InputStream is=null; 059 try { 060 is = res.getInputStream(); 061 fill(info,JpegMetadataReader.readMetadata(is)); 062 } 063 catch(Throwable t) { 064 ExceptionUtil.rethrowIfNecessary(t); 065 //throw Caster.toPageException(t); 066 } 067 finally { 068 IOUtil.closeEL(is); 069 } 070 } 071 072 private static void tiff(Resource res,Struct info) { 073 InputStream is=null; 074 try { 075 is = res.getInputStream(); 076 fill(info,TiffMetadataReader.readMetadata(is,true)); 077 } 078 catch(Throwable t) { 079 ExceptionUtil.rethrowIfNecessary(t); 080 //throw Caster.toPageException(t); 081 } 082 finally { 083 IOUtil.closeEL(is); 084 } 085 } 086 087 private static void fill(Struct info,Metadata metadata) { 088 Iterator<Directory> directories = metadata.getDirectories().iterator(); 089 while (directories.hasNext()) { 090 Directory directory = directories.next(); 091 Struct sct=new StructImpl(); 092 info.setEL(KeyImpl.init(directory.getName()), sct); 093 094 Iterator<Tag> tags = directory.getTags().iterator(); 095 while (tags.hasNext()) { 096 Tag tag = tags.next(); 097 sct.setEL(KeyImpl.init(tag.getTagName()), tag.getDescription()); 098 } 099 } 100 } 101 102 public static void test() { 103 // to not delete, this methd is called to test if the jar exists 104 105 } 106 107 108 109}