1 package uk.ac.ebi.intenz.tools.export;
2
3 import java.io.IOException;
4 import java.io.OutputStream;
5 import java.io.OutputStreamWriter;
6 import java.util.Collection;
7 import java.util.Map;
8 import java.util.Properties;
9
10 import org.apache.log4j.Logger;
11 import org.apache.velocity.Template;
12 import org.apache.velocity.VelocityContext;
13 import org.apache.velocity.app.Velocity;
14 import org.apache.velocity.exception.ParseErrorException;
15 import org.apache.velocity.exception.ResourceNotFoundException;
16
17 import uk.ac.ebi.intenz.domain.constants.View;
18 import uk.ac.ebi.intenz.domain.enzyme.EnzymeEntry;
19 import uk.ac.ebi.xchars.SpecialCharacters;
20 import uk.ac.ebi.xchars.domain.EncodingType;
21
22 public class KeggExporter {
23
24 private static final Logger LOGGER = Logger.getLogger(KeggExporter.class);
25
26 public KeggExporter() throws Exception {
27 Properties velocityProps = new Properties();
28 velocityProps.load(KeggExporter.class.getClassLoader()
29 .getResourceAsStream("velocity.properties"));
30 Velocity.init(velocityProps);
31 }
32
33 public void export(Collection<EnzymeEntry> enzymes, OutputStream os)
34 throws IOException{
35 VelocityContext context = new VelocityContext();
36 context.put("nl", "\n");
37 context.put("enzymes", enzymes);
38 context.put("specialCharacters", SpecialCharacters.getInstance(null));
39 context.put("spEncoding", EncodingType.SWISSPROT_CODE);
40 context.put("intenzView", View.INTENZ);
41
42 Template template = null;
43 try {
44 template = Velocity.getTemplate("templates/keggEnzyme.vm");
45 } catch (ResourceNotFoundException e) {
46 LOGGER.error("Template not found", e);
47 } catch (ParseErrorException e) {
48 LOGGER.error("Error parsing the template", e);
49 } catch (Exception e) {
50 LOGGER.error("Error getting velocity template", e);
51 }
52 if (template == null) return;
53 OutputStreamWriter osw = null;
54 try {
55 osw = new OutputStreamWriter(os);
56 template.merge(context, osw);
57 osw.flush();
58 } catch (IOException ex) {
59 LOGGER.error("Unable to write keggEnzyme", ex);
60 } finally {
61 if (osw != null) osw.close();
62 }
63 }
64 }