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ReadIdentifiersOrgXml.java
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163 lines (114 loc) · 4.85 KB
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import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import java.util.ArrayList;
public class ReadXMLFile {
public static StringBuilder sb;
public static ArrayList<Entry> entries = new ArrayList<Entry>();
public static Entry entry;
public static void main(String args[]) {
parse();
serialize();
}
private static void serialize() {
StringBuilder allentries = new StringBuilder();
for (Entry entry : entries) {
allentries.append(entry);
}
System.out.println(allentries.toString());
}
public static void parse() {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean prefixFlag = false;
boolean iriflag = false;
boolean uriflag = false;
boolean dataEntryflag = false;
boolean definitionflag = false;
boolean urisflag = false;
boolean homepageflag = false;
boolean titleflag = false;
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
sb = new StringBuilder();
if (qName.equalsIgnoreCase("namespace")) {
prefixFlag = true;
// todo: detect URN and turn flag to false
}
if (qName.equalsIgnoreCase("uris")) {
urisflag = true;
}
if (qName.equalsIgnoreCase("uri")) {
uriflag = true;
for (int i = 0; i < attributes.getLength(); i++) {
if (attributes.getQName(i).contains("deprecated")) {
// todo: capture deprecated stuff too but with a deprecated flag
uriflag = false;
}
}
}
if (qName.equalsIgnoreCase("dataEntry")) {
dataEntryflag = true;
}
if (qName.equalsIgnoreCase("definition")) {
definitionflag = true;
}
if (qName.equalsIgnoreCase("dataResource")) {
homepageflag = true;
}
if (qName.equalsIgnoreCase("dataInfo")) {
titleflag = true;
}
}
public void endElement(String uri, String localName, String qName)
throws SAXException {
// TODO Auto-generated method stub
String parsedString = sb.toString().trim();
if (prefixFlag) {
entry.primaryprefix = parsedString;
prefixFlag = false;
}
if (iriflag) {
if (!parsedString.startsWith("urn")) {
entry.iri = parsedString;
}
iriflag = false;
}
if (dataEntryflag) {
String resolvingnamespace = parsedString.replace("$id", "#");
entry.resolvingnamespaces.add(resolvingnamespace);
dataEntryflag = false;
}
if (definitionflag) {
entries.add(entry);
entry = new Entry();
entry.description = "\""+parsedString.replaceAll("\n"," ")+"\"";
definitionflag = false;
}
if (homepageflag) {
entry.homepages.add(parsedString);
homepageflag = false;
}
if (titleflag) {
entry.title = ("\""+parsedString+"\"");
titleflag = false;
}
}
public void characters(char ch[], int start, int length) throws SAXException {
if (sb != null) {
for (int i = start; i < start + length; i++) {
sb.append(ch[i]);
}
}
}
};
saxParser.parse("src/IdentifiersOrg-Registry_2015-11-20T15-46-36+00-00.xml", handler);
} catch (Exception e) {
e.printStackTrace();
}
}
}