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de.undercouch.citeproc.ris.RISParser Maven / Gradle / Ivy
package de.undercouch.citeproc.ris;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang3.StringUtils;
/**
* Parses RIS library files
*
* @author Michel Kraemer
*/
public class RISParser {
/**
* Parses RIS library files
*
* @param r
* the reader that provides the input to parse
* @return the parsed RIS library
* @throws IOException
* if the input could not be read
*/
@SuppressWarnings("resource")
public RISLibrary parse(Reader r) throws IOException {
BufferedReader br;
if (r instanceof BufferedReader) {
br = (BufferedReader) r;
} else {
br = new BufferedReader(r);
}
RISLibrary result = new RISLibrary();
RISReferenceBuilder builder = null;
List editors = new ArrayList<>();
List tertiaryAuthors = new ArrayList<>();
List subsidiaryAuthors = new ArrayList<>();
List authors = new ArrayList<>();
List keywords = new ArrayList<>();
List fileAttachments = new ArrayList<>();
List notes = new ArrayList<>();
List translatedAuthors = new ArrayList<>();
int lc = 0;
String line;
while ((line = br.readLine()) != null) {
++lc;
line = line.trim();
if (line.equals("ER -")) {
// end of reference
handleReference(builder, editors, tertiaryAuthors, subsidiaryAuthors, authors, keywords,
fileAttachments, notes, translatedAuthors, result);
editors.clear();
tertiaryAuthors.clear();
subsidiaryAuthors.clear();
authors.clear();
keywords.clear();
fileAttachments.clear();
notes.clear();
translatedAuthors.clear();
builder = null;
continue;
}
if (line.isEmpty()) {
// allow for empty lines. this does not comply with the
// standard but is exported by Zotero
continue;
}
if (line.length() < 7) {
throw new IOException("Line " + lc + " is too short");
}
if (line.charAt(4) != '-') {
throw new IOException("Tag and value must be separated by " + "'-' character in line " + lc);
}
String key = line.substring(0, 2).trim();
String value = line.substring(6).trim();
if (builder == null) {
builder = new RISReferenceBuilder();
}
if (key.equalsIgnoreCase("TY")) {
builder.type(parseType(value, lc));
} else
if (key.equalsIgnoreCase("A2")) {
editors.add(value);
} else
if (key.equalsIgnoreCase("A3")) {
tertiaryAuthors.add(value);
} else
if (key.equalsIgnoreCase("A4")) {
subsidiaryAuthors.add(value);
} else
if (key.equalsIgnoreCase("AB")) {
builder.abstrct(value);
} else
if (key.equalsIgnoreCase("AD")) {
builder.authorAddress(value);
} else
if (key.equalsIgnoreCase("AN")) {
builder.accessionNumber(value);
} else
if (key.equalsIgnoreCase("AU")) {
authors.add(value);
} else
if (key.equalsIgnoreCase("BT")) {
builder.bookOrConference(value);
} else
if (key.equalsIgnoreCase("C1")) {
builder.custom1(value);
} else
if (key.equalsIgnoreCase("C2")) {
builder.custom2(value);
} else
if (key.equalsIgnoreCase("C3")) {
builder.custom3(value);
} else
if (key.equalsIgnoreCase("C4")) {
builder.custom4(value);
} else
if (key.equalsIgnoreCase("C5")) {
builder.custom5(value);
} else
if (key.equalsIgnoreCase("C6")) {
builder.custom6(value);
} else
if (key.equalsIgnoreCase("C7")) {
builder.custom7(value);
} else
if (key.equalsIgnoreCase("C8")) {
builder.custom8(value);
} else
if (key.equalsIgnoreCase("CA")) {
builder.caption(value);
} else
if (key.equalsIgnoreCase("CN")) {
builder.callNumber(value);
} else
if (key.equalsIgnoreCase("CY")) {
builder.place(value);
} else
if (key.equalsIgnoreCase("DA")) {
builder.date(value);
} else
if (key.equalsIgnoreCase("DB")) {
builder.nameOfDatabase(value);
} else
if (key.equalsIgnoreCase("DO")) {
builder.DOI(value);
} else
if (key.equalsIgnoreCase("DP")) {
builder.databaseProvider(value);
} else
if (key.equalsIgnoreCase("ED")) {
editors.add(value);
} else
if (key.equalsIgnoreCase("EP")) {
builder.endPage(value);
} else
if (key.equalsIgnoreCase("ET")) {
builder.edition(value);
} else
if (key.equalsIgnoreCase("ID")) {
builder.id(value);
} else
if (key.equalsIgnoreCase("IS")) {
builder.issue(value);
} else
if (key.equalsIgnoreCase("JO")) {
builder.journal(value);
} else
if (key.equalsIgnoreCase("J2")) {
builder.journal(value);
} else
if (key.equalsIgnoreCase("KW")) {
keywords.add(value);
} else
if (key.equalsIgnoreCase("L1")) {
fileAttachments.add(value);
} else
if (key.equalsIgnoreCase("L4")) {
builder.figure(value);
} else
if (key.equalsIgnoreCase("LA")) {
builder.language(value);
} else
if (key.equalsIgnoreCase("LB")) {
builder.label(value);
} else
if (key.equalsIgnoreCase("M1")) {
builder.number(value);
} else
if (key.equalsIgnoreCase("M3")) {
builder.typeOfWork(value);
} else
if (key.equalsIgnoreCase("N1")) {
notes.add(value);
} else
if (key.equalsIgnoreCase("N2")) {
builder.abstrct(value);
} else
if (key.equalsIgnoreCase("NV")) {
builder.numberOfVolumes(value);
} else
if (key.equalsIgnoreCase("OP")) {
builder.originalPublication(value);
} else
if (key.equalsIgnoreCase("PB")) {
builder.publisher(value);
} else
if (key.equalsIgnoreCase("PY")) {
builder.year(value);
} else
if (key.equalsIgnoreCase("RI")) {
builder.reviewedItem(value);
} else
if (key.equalsIgnoreCase("RN")) {
builder.researchNotes(value);
} else
if (key.equalsIgnoreCase("RP")) {
builder.reprintEdition(value);
} else
if (key.equalsIgnoreCase("SE")) {
builder.section(value);
} else
if (key.equalsIgnoreCase("SN")) {
builder.isbnOrIssn(value);
} else
if (key.equalsIgnoreCase("SP")) {
builder.startPage(value);
} else
if (key.equalsIgnoreCase("ST")) {
builder.shortTitle(value);
} else
if (key.equalsIgnoreCase("T1")) {
builder.primaryTitle(value);
} else
if (key.equalsIgnoreCase("T2")) {
builder.secondaryTitle(value);
} else
if (key.equalsIgnoreCase("T3")) {
builder.tertiaryTitle(value);
} else
if (key.equalsIgnoreCase("TA")) {
translatedAuthors.add(value);
} else
if (key.equalsIgnoreCase("TI")) {
builder.title(value);
} else
if (key.equalsIgnoreCase("TT")) {
builder.translatedTitle(value);
} else
if (key.equalsIgnoreCase("U1")) {
builder.typeOfWork(value);
} else
if (key.equalsIgnoreCase("UR")) {
builder.URL(value);
} else
if (key.equalsIgnoreCase("VL")) {
builder.volume(value);
} else
if (key.equalsIgnoreCase("Y2")) {
builder.accessDate(value);
} else
{
// ignore unknown tags
}
}
handleReference(builder, editors, tertiaryAuthors, subsidiaryAuthors, authors, keywords, fileAttachments, notes,
translatedAuthors, result);
return result;
}
private void handleReference(RISReferenceBuilder builder, List editors, List tertiaryAuthors,
List subsidiaryAuthors, List authors, List keywords, List fileAttachments,
List notes, List translatedAuthors, RISLibrary result) {
if (builder != null) {
if (!editors.isEmpty()) {
builder.editors(editors.toArray(new String[0]));
}
if (!tertiaryAuthors.isEmpty()) {
builder.tertiaryAuthors(tertiaryAuthors.toArray(new String[0]));
}
if (!subsidiaryAuthors.isEmpty()) {
builder.subsidiaryAuthors(subsidiaryAuthors.toArray(new String[0]));
}
if (!authors.isEmpty()) {
builder.authors(authors.toArray(new String[0]));
}
if (!keywords.isEmpty()) {
builder.keywords(keywords.toArray(new String[0]));
}
if (!fileAttachments.isEmpty()) {
builder.fileAttachments(fileAttachments.toArray(new String[0]));
}
if (!notes.isEmpty()) {
builder.notes(notes.toArray(new String[0]));
}
if (!translatedAuthors.isEmpty()) {
builder.translatedAuthors(translatedAuthors.toArray(new String[0]));
}
result.addReference(builder.build());
}
}
private RISType parseType(String value, int lc) throws IOException {
try {
return RISType.fromString(value);
} catch (IllegalArgumentException e) {
throw new IOException("Unknown type in line " + lc);
}
}
}
