@Override
public void beginSubField(Field designator) {
if (designator == null) {
return;
}
try {
AttributesImpl attrs = new AttributesImpl();
String subfieldId = designator.subfieldId();
if (subfieldId == null || subfieldId.length() == 0) {
subfieldId = "a"; // fallback
}
attrs.addAttribute(nsUri, CODE, CODE, "CDATA", subfieldId);
if (contentHandler != null) {
contentHandler.startElement(nsUri, SUBFIELD, SUBFIELD, attrs);
}
if (listener != null) {
listener.beginSubField(designator);
}
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void endSubField(Field designator) {
if (designator == null) {
return;
}
try {
if (listener != null) {
listener.endSubField(designator);
}
if (designator != null) {
if (contentHandler != null) {
String value = designator.data();
if (!value.isEmpty()) {
value = normalizeValue(value);
contentHandler.characters(value.toCharArray(), 0, value.length());
}
}
}
if (contentHandler != null) {
contentHandler.endElement(NS_URI, SUBFIELD, SUBFIELD);
}
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void endRecord() {
if (!recordOpen) {
return;
}
try {
if (listener != null) {
listener.endRecord();
}
if (contentHandler != null) {
contentHandler.endElement(nsUri, RECORD, RECORD);
}
if (listener != null) {
// emit trailer event, drives record output segmentation
listener.trailer(null);
}
this.recordOpen = false;
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void endDataField(Field designator) {
try {
if (!datafieldOpen) {
return;
}
if (listener != null) {
listener.endDataField(designator);
}
if (designator != null) {
String value = designator.data();
if (value != null && !value.isEmpty()) {
value = normalizeValue(value);
// write data field per default into a subfield with code 'a'
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute(nsUri, CODE, CODE, "CDATA", "a");
if (contentHandler != null) {
contentHandler.startElement(nsUri, SUBFIELD, SUBFIELD, attrs);
contentHandler.characters(value.toCharArray(), 0, value.length());
contentHandler.endElement(nsUri, SUBFIELD, SUBFIELD);
}
}
}
if (contentHandler != null) {
contentHandler.endElement(NS_URI, DATAFIELD, DATAFIELD);
}
datafieldOpen = false;
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void beginRecord(String format, String type) {
if (recordOpen) {
return;
}
try {
AttributesImpl attrs = new AttributesImpl();
if (format != null && !"MARC21".equalsIgnoreCase(schema)) {
attrs.addAttribute(nsUri, FORMAT, FORMAT, "CDATA", format);
}
if (type != null) {
attrs.addAttribute(nsUri, TYPE, TYPE, "CDATA", type);
}
if (contentHandler != null) {
contentHandler.startElement(nsUri, RECORD, RECORD, attrs);
}
if (listener != null) {
listener.beginRecord(format, type);
}
this.recordOpen = true;
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
public void beginCollection() throws SAXException {
if (contentHandler == null) {
logger.warn("no content handler set");
return;
}
contentHandler.startDocument();
// write schema info
AttributesImpl attrs = new AttributesImpl();
if ("MARC21".equalsIgnoreCase(schema)) {
this.nsUri = MARC21_NS_URI;
attrs.addAttribute(
XMLNS.NS_URI, XSI.NS_PREFIX, XMLNS.NS_PREFIX + ":" + XSI.NS_PREFIX, "CDATA", XSI.NS_URI);
attrs.addAttribute(
XSI.NS_URI,
"schemaLocation",
XSI.NS_PREFIX + ":schemaLocation",
"CDATA",
MARC21_NS_URI + " " + MARC21_SCHEMA);
} else {
this.nsUri = NS_URI;
attrs.addAttribute(
XMLNS.NS_URI, XSI.NS_PREFIX, XMLNS.NS_PREFIX + ":" + XSI.NS_PREFIX, "CDATA", XSI.NS_URI);
attrs.addAttribute(
XSI.NS_URI,
"schemaLocation",
XSI.NS_PREFIX + ":schemaLocation",
"CDATA",
NS_URI + " " + MARCXCHANGE_SCHEMA);
}
contentHandler.startPrefixMapping("", nsUri);
contentHandler.startElement(nsUri, COLLECTION, COLLECTION, attrs);
}
public void endCollection() throws SAXException {
if (contentHandler == null) {
logger.warn("no content handler set");
return;
}
contentHandler.endElement(nsUri, COLLECTION, COLLECTION);
contentHandler.endDocument();
}
@Override
public void beginDataField(Field designator) {
if (designator == null) {
return;
}
try {
if (designator.isControlField()) {
beginControlField(designator);
endControlField(designator);
return;
}
if (datafieldOpen) {
return;
}
AttributesImpl attrs = new AttributesImpl();
String tag = designator.tag();
if (tag == null || tag.length() == 0) {
tag = Field.NULL_TAG; // fallback
designator.tag(tag);
}
attrs.addAttribute(nsUri, TAG, TAG, "CDATA", tag);
int ind = designator.indicator() != null ? designator.indicator().length() : 0;
// force at least two default blank indicators if schema is Marc 21
if ("MARC21".equalsIgnoreCase(schema)) {
for (int i = (ind == 0 ? 1 : ind); i <= 2; i++) {
attrs.addAttribute(null, IND + i, IND + i, "CDATA", " ");
}
}
// set indicators
for (int i = 1; i <= ind; i++) {
attrs.addAttribute(
null, IND + i, IND + i, "CDATA", designator.indicator().substring(i - 1, i));
}
if (contentHandler != null) {
contentHandler.startElement(nsUri, DATAFIELD, DATAFIELD, attrs);
}
if (listener != null) {
listener.beginDataField(designator);
}
datafieldOpen = true;
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void beginControlField(Field designator) {
if (designator == null) {
return;
}
try {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute(nsUri, TAG, TAG, "CDATA", designator.tag());
if (contentHandler != null) {
contentHandler.startElement(nsUri, CONTROLFIELD, CONTROLFIELD, attrs);
}
if (listener != null) {
listener.beginControlField(designator);
}
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void leader(String value) {
if (value == null) {
return;
}
try {
if (contentHandler != null) {
contentHandler.startElement(nsUri, LEADER, LEADER, EMPTY_ATTRIBUTES);
contentHandler.characters(value.toCharArray(), 0, value.length());
contentHandler.endElement(nsUri, LEADER, LEADER);
}
if (listener != null) {
listener.leader(value);
}
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
@Override
public void endControlField(Field designator) {
try {
if (listener != null) {
listener.endControlField(designator);
}
if (designator != null) {
String value = designator.data();
if (!value.isEmpty()) {
switch (designator.tag()) {
case "001":
this.id = value;
break;
case "006":
case "007":
case "008":
// fix fill characters here
value = value.replace('^', '|');
break;
}
if (contentHandler != null) {
contentHandler.characters(value.toCharArray(), 0, value.length());
}
}
}
if (contentHandler != null) {
contentHandler.endElement(nsUri, CONTROLFIELD, CONTROLFIELD);
}
} catch (Exception ex) {
if (fatalerrors) {
throw new RuntimeException(ex);
} else if (!silenterrors) {
logger.warn(designator + ": " + ex.getMessage(), ex);
}
}
}
private void push(URI uri) throws Exception {
if (uri == null) {
return;
}
InputStream in = factory.open(uri);
if (in == null) {
throw new IOException("unable to open " + uri);
}
try (BufferedReader reader = new BufferedReader(new InputStreamReader(in, "UTF-8"))) {
String title = null;
List<String> author = new LinkedList();
String year = null;
String journal = null;
String issn = null;
String volume = null;
String issue = null;
String pagination = null;
String doi = null;
String publisher = null;
String line;
while ((line = reader.readLine()) != null) {
if (line.isEmpty()) {
continue;
}
if ('%' != line.charAt(0)) {
continue;
}
char ch = line.charAt(1);
switch (ch) {
case 'D':
{
year = line.substring(3).trim();
break;
}
case 'T':
{
title = line.substring(3).trim();
break;
}
case '@':
{
issn = line.substring(3).trim();
break;
}
case 'J':
{
journal = line.substring(3).trim();
break;
}
case 'A':
{
author.add(line.substring(3).trim());
break;
}
case 'V':
{
volume = line.substring(3).trim();
break;
}
case 'N':
{
issue = line.substring(3).trim();
break;
}
case 'P':
{
pagination = line.substring(3).trim();
break;
}
case 'R':
{
doi = line.substring(3).trim();
break;
}
case 'I':
{
publisher = line.substring(3).trim();
break;
}
case 'U':
{
// URL (DOI resolver)
break;
}
case 'K':
{
// keywords
break;
}
case '0':
{
// record type
break;
}
case '8':
{
// day
break;
}
case 'G':
{
// language
break;
}
default:
{
logger.warn("unknown tag: " + line);
}
}
}
// create bibliographic key
String key =
author.isEmpty()
? null
: new WorkAuthor().authorName(author.get(0)).workName(title).createIdentifier();
IRI dereferencable =
IRI.builder().scheme("http").host("xbib.info").path("/doi/").fragment(doi).build();
Resource r =
resourceContext
.newResource()
.id(dereferencable)
.a(FABIO_ARTICLE)
.add("xbib:key", key)
.add("prism:doi", doi)
.add("dc:title", title);
for (String a : author) {
r.add("dc:creator", a);
}
r.add("prism:publicationDate", new SimpleLiteral<>(year).type(Literal.GYEAR));
r.newResource(FRBR_EMBODIMENT).a(FABIO_PERIODICAL_VOLUME).add("prism:volume", volume);
r.newResource(FRBR_EMBODIMENT).a(FABIO_PERIODICAL_ISSUE).add("prism:number", issue);
r.newResource(FRBR_EMBODIMENT).a(FABIO_PRINT_OBJECT).add("prism:pageRange", pagination);
r.newResource(FRBR_PARTOF)
.a(FABIO_JOURNAL)
.add("prism:publicationName", journal)
.add("prism:issn", issn)
.add("dc:publisher", publisher);
resourceContext
.resource()
.id(
IRI.builder()
.scheme("http")
.host(index)
.query(type)
.fragment(resourceContext.resource().id().getFragment())
.build());
out.output(resourceContext, resourceContext.contentBuilder());
}
}