1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
package org.zwobble.mammoth.docx;
import org.zwobble.mammoth.documents.Document;
import org.zwobble.mammoth.documents.Notes;
import org.zwobble.mammoth.results.Result;
import org.zwobble.mammoth.util.MammothLists;
import org.zwobble.mammoth.xml.XmlElement;
import java.io.File;
import java.io.IOException;
import java.util.Optional;
import java.util.zip.ZipFile;
import static org.zwobble.mammoth.util.MammothLists.list;
public class DocumentReader {
@FunctionalInterface
private interface BodyReaders {
BodyXmlReader forName(String name);
}
public static Result<Document> readDocument(File file) {
try (DocxFile zipFile = new ZippedDocxFile(new ZipFile(file))) {
Styles styles = readStyles(zipFile);
Numbering numbering = Numbering.EMPTY;
ContentTypes contentTypes = ContentTypes.DEFAULT;
FileReader fileReader = uri -> {
throw new UnsupportedOperationException();
};
BodyReaders bodyReaders = name -> {
Relationships relationships = readRelationships(zipFile, name);
return new BodyXmlReader(styles, numbering, relationships, contentTypes, zipFile, fileReader);
};
return readNotes(zipFile, bodyReaders)
.flatMap(notes -> {
DocumentXmlReader reader = new DocumentXmlReader(bodyReaders.forName("document"), notes);
return reader.readElement(parseOfficeXml(zipFile, "word/document.xml"));
});
} catch (IOException e) {
throw new UnsupportedOperationException("Should return a result of failure");
}
}
private static Result<Notes> readNotes(DocxFile file, BodyReaders bodyReaders) {
return Result.map(
tryParseOfficeXml(file, "word/footnotes.xml")
.map(NotesXmlReader.footnote(bodyReaders.forName("footnotes"))::readElement)
.orElse(Result.success(list())),
tryParseOfficeXml(file, "word/endnotes.xml")
.map(NotesXmlReader.endnote(bodyReaders.forName("endnotes"))::readElement)
.orElse(Result.success(list())),
MammothLists::concat).map(Notes::new);
}
private static Styles readStyles(DocxFile file) {
return tryParseOfficeXml(file, "word/styles.xml")
.map(StylesXml::readStylesXmlElement)
.orElse(Styles.EMPTY);
}
private static Relationships readRelationships(DocxFile zipFile, String name) {
return tryParseOfficeXml(zipFile, "word/_rels/" + name + ".xml.rels")
.map(RelationshipsXml::readRelationshipsXmlElement)
.orElse(Relationships.EMPTY);
}
private static Optional<XmlElement> tryParseOfficeXml(DocxFile zipFile, String name) {
try {
return zipFile.tryGetInputStream(name).map(OfficeXml::parseXml);
} catch (IOException exception) {
// TODO: wrap in more specific exception and catch at the top
throw new RuntimeException(exception);
}
}
private static XmlElement parseOfficeXml(DocxFile zipFile, String name) {
return tryParseOfficeXml(zipFile, name)
// TODO: wrap in more specific exception and catch at the top
.orElseThrow(() -> new RuntimeException(new IOException("Missing entry in file: " + name)));
}
}
|
