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17 package org.apache.tika.parser.pdf;
18
19 import java.io.IOException;
20 import java.io.InputStream;
21 import java.util.Calendar;
22 import java.util.Collections;
23 import java.util.Set;
24
25 import org.apache.pdfbox.pdmodel.PDDocument;
26 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
27 import org.apache.tika.exception.TikaException;
28 import org.apache.tika.metadata.Metadata;
29 import org.apache.tika.mime.MediaType;
30 import org.apache.tika.parser.ParseContext;
31 import org.apache.tika.parser.Parser;
32 import org.xml.sax.ContentHandler;
33 import org.xml.sax.SAXException;
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43 public class PDFParser implements Parser {
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50 public static final String PASSWORD = "org.apache.tika.parser.pdf.password";
51
52 private static final Set<MediaType> SUPPORTED_TYPES =
53 Collections.singleton(MediaType.application("pdf"));
54
55 public Set<MediaType> getSupportedTypes(ParseContext context) {
56 return SUPPORTED_TYPES;
57 }
58
59 public void parse(
60 InputStream stream, ContentHandler handler,
61 Metadata metadata, ParseContext context)
62 throws IOException, SAXException, TikaException {
63 PDDocument pdfDocument = PDDocument.load(stream);
64 try {
65 if (pdfDocument.isEncrypted()
66 && !pdfDocument.getCurrentAccessPermission().canExtractContent()) {
67 try {
68 String password = metadata.get(PASSWORD);
69 if (password == null) {
70 password = "";
71 }
72 pdfDocument.decrypt(password);
73 } catch (Exception e) {
74
75 }
76 }
77 metadata.set(Metadata.CONTENT_TYPE, "application/pdf");
78 extractMetadata(pdfDocument, metadata);
79 PDF2XHTML.process(pdfDocument, handler, metadata);
80 } finally {
81 pdfDocument.close();
82 }
83 }
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88 public void parse(
89 InputStream stream, ContentHandler handler, Metadata metadata)
90 throws IOException, SAXException, TikaException {
91 parse(stream, handler, metadata, new ParseContext());
92 }
93
94 private void extractMetadata(PDDocument document, Metadata metadata)
95 throws TikaException {
96 PDDocumentInformation info = document.getDocumentInformation();
97 addMetadata(metadata, Metadata.TITLE, info.getTitle());
98 addMetadata(metadata, Metadata.AUTHOR, info.getAuthor());
99 addMetadata(metadata, Metadata.CREATOR, info.getCreator());
100 addMetadata(metadata, Metadata.KEYWORDS, info.getKeywords());
101 addMetadata(metadata, "producer", info.getProducer());
102 addMetadata(metadata, Metadata.SUBJECT, info.getSubject());
103 addMetadata(metadata, "trapped", info.getTrapped());
104 try {
105 addMetadata(metadata, "created", info.getCreationDate());
106 } catch (IOException e) {
107
108 }
109 try {
110 Calendar modified = info.getModificationDate();
111 addMetadata(metadata, Metadata.LAST_MODIFIED, modified);
112 } catch (IOException e) {
113
114 }
115 }
116
117 private void addMetadata(Metadata metadata, String name, String value) {
118 if (value != null) {
119 metadata.add(name, value);
120 }
121 }
122
123 private void addMetadata(Metadata metadata, String name, Calendar value) {
124 if (value != null) {
125 metadata.set(name, value.getTime().toString());
126 }
127 }
128
129 }