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1 package digilib.pdf;
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2
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3 import java.io.IOException;
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4 import java.net.MalformedURLException;
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5 import java.net.URL;
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6
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7 import org.apache.log4j.Logger;
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8
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9 import com.itextpdf.text.Anchor;
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10 import com.itextpdf.text.BadElementException;
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11 import com.itextpdf.text.Chunk;
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12 import com.itextpdf.text.Element;
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13 import com.itextpdf.text.FontFactory;
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14 import com.itextpdf.text.Image;
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15 import com.itextpdf.text.Paragraph;
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16
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17
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18 import digilib.io.DigilibInfoReader;
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19 import digilib.io.DocuDirCache;
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20 import digilib.servlet.PDFCache;
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21 import digilib.servlet.PDFRequest;
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22
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23 /** A class for the generation of title pages for the generated pdf documents.
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24 *
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25 *
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26 */
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27 public class PDFTitlePage {
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28
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29 private PDFRequest job_info = null;
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30 private DigilibInfoReader info_reader= null;
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31 private DocuDirCache dirCache = null;
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32 protected static Logger logger = Logger.getLogger("digilib.servlet");
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33
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34
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35 /**
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36 * Initialize a TitlePage
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37 * @param pdfji
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38 */
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39 public PDFTitlePage(PDFRequest pdfji){
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40 job_info = pdfji;
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41 dirCache = (DocuDirCache) job_info.getDlConfig().getValue("servlet.dir.cache");
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42
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43 String fn = getBase(dirCache.getDirectory(pdfji.getImageJobInformation().getAsString("fn")).getDir().getPath()) + "presentation/info.xml";
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44
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45 info_reader = new DigilibInfoReader(fn);
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46 }
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47
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48 /**
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49 * generate iText-PDF-Contents for the title page
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50 *
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51 * @return
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52 */
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53 public Element getPageContents(){
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54 Paragraph content = new Paragraph();
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55 content.setAlignment(Element.ALIGN_CENTER);
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56
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57 // add vertical whitespace
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58 for(int i=0; i<8; i++){
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59 content.add(Chunk.NEWLINE);
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60 }
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61
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62
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63 // add logo
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64 content.add(getLogo());
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65 content.add(Chunk.NEWLINE);
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66 content.add(Chunk.NEWLINE);
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67
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68 // add title
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69 Anchor title = new Anchor(new Paragraph(getTitle(),FontFactory.getFont(FontFactory.HELVETICA,16)));
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70 String burl = job_info.getImageJobInformation().getAsString("base.url");
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71
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72 title.setReference(burl+"digilib.jsp?fn="+job_info.getImageJobInformation().getAsString("fn"));
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73 content.add(title);
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74 content.add(Chunk.NEWLINE);
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75
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76 // add author
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77 if(getDate()!=" ")
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78 content.add(new Paragraph(getAuthor()+" ("+getDate()+")",FontFactory.getFont(FontFactory.HELVETICA,14)));
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79 else
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80 content.add(new Paragraph(getAuthor(),FontFactory.getFont(FontFactory.HELVETICA,14)));
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81
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82 content.add(Chunk.NEWLINE);
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83
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84 // add page numbers
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85 content.add(new Paragraph(getPages(), FontFactory.getFont(FontFactory.HELVETICA, 12)));
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86
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87
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88 content.add(Chunk.NEWLINE);
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89 content.add(Chunk.NEWLINE);
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90 content.add(Chunk.NEWLINE);
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91
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92 // add credits
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93 content.add(new Paragraph("MPIWG Berlin 2009", FontFactory.getFont(FontFactory.HELVETICA,10)));
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94
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95 // add digilib version
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96 content.add(new Paragraph(getDigilibVersion(),FontFactory.getFont(FontFactory.HELVETICA,10)));
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97
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98 for(int i=0; i<8; i++){
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99 content.add(Chunk.NEWLINE);
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100 }
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101 Anchor address = new Anchor(
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102 new Paragraph(burl+"digilib.jsp?fn="+job_info.getImageJobInformation().getAsString("fn"), FontFactory.getFont(FontFactory.COURIER, 9))
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103 );
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104 address.setReference(burl+"digilib.jsp?fn="+job_info.getImageJobInformation().getAsString("fn"));
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105
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106 content.add(address);
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107
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108
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109 return content;
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110 }
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111
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112 /**
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113 * return base directory of an image directory
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114 *
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115 * @param path
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116 * @return
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117 */
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118 private String getBase(String path){
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119 if(path.contains("/")){
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120 String[] x = path.split("/");
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121 String newpath = "";
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122 for(int i=0; i<x.length-1; i++){
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123 newpath += x[i]+"/";
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124 }
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125 return newpath;
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126 }
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127 else
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128 return "";
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129 }
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130
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131
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132 /**
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133 * Methods for the different attributes.
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134 *
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135 */
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136
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137
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138 private Image getLogo(){
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139 try {
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140 URL url = new URL(job_info.getDlConfig().getAsString("pdf-logo"));
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141 if(url!=null && !url.equals("")){
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142 Image logo = Image.getInstance(url);
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143 logo.setAlignment(Element.ALIGN_CENTER);
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144 return logo;
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145 }
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146 } catch (BadElementException e) {
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147 logger.error(e.getMessage());
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148 e.printStackTrace();
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149 } catch (MalformedURLException e) {
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150 logger.error(e.getMessage());
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151 e.printStackTrace();
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152 } catch (IOException e) {
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153 logger.error(e.getMessage());
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154 e.printStackTrace();
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155 }
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156 return null;
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157 }
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158 private String getTitle(){
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159 if(info_reader.hasInfo())
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160 return info_reader.getAsString("title");
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161 else
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162 return job_info.getImageJobInformation().getAsString("fn");
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163 }
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164 private String getAuthor(){
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165 if(info_reader.hasInfo())
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166 return info_reader.getAsString("author");
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167 else
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168 return " ";
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169 }
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170 private String getDate(){
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171 if(info_reader.hasInfo())
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172 return info_reader.getAsString("date");
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173 else
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174 return " ";
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175 }
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176 private String getPages(){
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177 return "Pages "+job_info.getAsString("pgs") + " (scan page numbers)";
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178 }
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179
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180 private String getDigilibVersion(){
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181 return "Digilib PDFMaker v."+PDFCache.version;
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509
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182 }
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183
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184 }
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