Example usage for com.fasterxml.jackson.databind MappingIterator nextValue

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind MappingIterator nextValue.

Prototype

public T nextValue() throws IOException 

Source Link

Usage

From source file:org.wikidata.wdtk.client.JsonSerializationActionTest.java

@Test
public void testJsonOutput() throws IOException {
    String[] args = new String[] { "-a", "json", "-o", "/path/to/output.json" };

    DirectoryManagerFactory.setDirectoryManagerClass(MockDirectoryManager.class);

    ClientConfiguration config = new ClientConfiguration(args);
    JsonSerializationAction jsa = (JsonSerializationAction) config.getActions().get(0);

    ItemIdValue subject1 = Datamodel.makeWikidataItemIdValue("Q42");
    ItemIdValue subject2 = Datamodel.makeWikidataItemIdValue("Q43");
    MonolingualTextValue mtv1 = Datamodel.makeMonolingualTextValue("Test1", "en");
    MonolingualTextValue mtv2 = Datamodel.makeMonolingualTextValue("Test2", "fr");

    ItemDocument id1 = Datamodel.makeItemDocument(subject1, Arrays.asList(mtv1, mtv2), Arrays.asList(mtv1),
            Collections.<MonolingualTextValue>emptyList(), Collections.<StatementGroup>emptyList(),
            Collections.<String, SiteLink>emptyMap());

    ItemDocument id2 = Datamodel.makeItemDocument(subject2, Collections.<MonolingualTextValue>emptyList(),
            Arrays.asList(mtv2), Collections.<MonolingualTextValue>emptyList(),
            Collections.<StatementGroup>emptyList(), Collections.<String, SiteLink>emptyMap());

    PropertyDocument pd1 = Datamodel.makePropertyDocument(Datamodel.makeWikidataPropertyIdValue("P31"),
            Arrays.asList(mtv1), Collections.<MonolingualTextValue>emptyList(), Arrays.asList(mtv1),
            Datamodel.makeDatatypeIdValue(DatatypeIdValue.DT_MONOLINGUAL_TEXT));

    jsa.open();//from  w  w w  .  ja v a  2s  . c o m
    jsa.processItemDocument(id1);
    jsa.processPropertyDocument(pd1);
    jsa.processItemDocument(id2);
    jsa.close();

    MockDirectoryManager mdm = new MockDirectoryManager(Paths.get("/path/to/"), false);

    ObjectMapper mapper = new ObjectMapper();
    ObjectReader documentReader = mapper.reader(JacksonTermedStatementDocument.class);
    MappingIterator<JacksonTermedStatementDocument> documentIterator = documentReader
            .readValues(mdm.getInputStreamForFile("output.json", CompressionType.NONE));

    List<EntityDocument> results = new ArrayList<>();
    while (documentIterator.hasNextValue()) {
        JacksonTermedStatementDocument document = documentIterator.nextValue();
        document.setSiteIri(Datamodel.SITE_WIKIDATA);
        results.add(document);
    }
    documentIterator.close();

    assertEquals(3, results.size());
    assertEquals(id1, results.get(0));
    assertEquals(pd1, results.get(1));
    assertEquals(id2, results.get(2));

}

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From source file:nl.esciencecenter.medim.dicom.types.DicomTags.java

protected void readFromText(String txt) throws IOException {
    // Pass I: remove comments including the ending newline!
    Pattern pat = Pattern.compile("^#.*\n", Pattern.MULTILINE);
    String newTxt = pat.matcher(txt).replaceAll("");
    // Not needed: Pass II: remove empty lines as a result of the
    // pat=Pattern.compile("\n\n",Pattern.MULTILINE);
    // newTxt=pat.matcher(newTxt).replaceAll("");

    // ObjectMapper mapper=new ObjectMapper();
    CsvMapper mapper = new CsvMapper();
    CsvSchema schema = mapper.schemaFor(CsvTagLine.class); // create object mapping from CsvLine.class

    // CsvSchema schema = CsvSchema.builder()
    // .addColumn(CSV_GROUP)
    // .addColumn(CSV_ELEMENT)
    // .addColumn(CSV_VR)
    // .addColumn(CSV_NAME)
    // .build();//ww w  .  java2s .c  o  m

    MappingIterator<CsvTagLine> mi = mapper.reader(CsvTagLine.class).with(schema).readValues(newTxt);

    List<TagDirective> tags = new ArrayList<TagDirective>();

    // skip first:
    CsvTagLine header = mi.nextValue();

    // check header values.
    while (mi.hasNextValue()) {
        CsvTagLine line = mi.nextValue();
        TagDirective tag = new TagDirective();
        // do something?
        tag.tagNr = StringUtil.parseHexidecimal(line.group) * 0x10000
                + StringUtil.parseHexidecimal(line.element);
        tag.name = line.name;
        line.keep = StringUtil.stripWhiteSpace(line.keep);
        line.options = StringUtil.stripWhiteSpace(line.options);

        // Support OX
        if (StringUtil.equalsIgnoreCase(line.VR, "OX"))
            line.VR = "OB"; // treat as bytes;

        VRType vrType = VRType.valueOf(line.VR);
        tag.vr = vrType.vr();

        boolean keep = false;

        if (StringUtil.isWhiteSpace(line.keep) == false)
            keep = (Integer.parseInt(line.keep) > 0);

        if (keep == false) {
            tag.option = TagProcessingOption.DELETE;
        } else {
            // check option:
            // System.err.printf("- %s | %s | %s | %s\n",line.group,line.element,line.keep,line.options);
            if (StringUtil.isWhiteSpace(line.options) == false) {
                tag.option = TagProcessingOption.valueOfOrNull(line.options, true);
                // error parsing option:
                if (tag.option == null) {
                    throw new IOException("Parse Error: could not parse Tag Option:" + line.options);
                }
            } else {
                tag.option = TagProcessingOption.KEEP; // no option -> keep.
            }
        }

        tags.add(tag);
    }

    // POST: check tags:

    for (int i = 0; i < tags.size(); i++) {
        TagDirective tag = tags.get(i);
        // logger.debugPritnf("TagOption: 0x%8x '%s' : %s\n",tag.tagNr,tag.name,tag.option);
        this.dicomTags.put(tag.tagNr, tag); // register
    }
}

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