Example usage for com.fasterxml.jackson.dataformat.csv CsvMapper addMixInAnnotations

Introduction

In this page you can find the example usage for com.fasterxml.jackson.dataformat.csv CsvMapper addMixInAnnotations.

Prototype

public final void addMixInAnnotations(Class<?> target, Class<?> mixinSource) 

Source Link

Document

Method to use for adding mix-in annotations to use for augmenting specified class or interface.

Usage

From source file:com.marklogic.client.test.JacksonDatabindTest.java

/** Demonstrate using Jackson's CSV mapper directly to simplify reading in data, populating a 
 * third-party pojo (one we cannot annotate) then writing it out
 * via JacksonDatabindHandle with configuration provided by mix-in annotations.
 **///from  w  ww  . jav  a2  s.co m
@Test
public void testDatabindingThirdPartyPojoWithMixinAnnotations() throws JsonProcessingException, IOException {
    CsvSchema schema = CsvSchema.builder().setColumnSeparator('\t').addColumn("geoNameId").addColumn("name")
            .addColumn("asciiName").addColumn("alternateNames")
            .addColumn("latitude", CsvSchema.ColumnType.NUMBER)
            .addColumn("longitude", CsvSchema.ColumnType.NUMBER).addColumn("featureClass")
            .addColumn("featureCode").addColumn("countryCode").addColumn("countryCode2").addColumn("adminCode1")
            .addColumn("adminCode2").addColumn("adminCode3").addColumn("adminCode4").addColumn("population")
            .addColumn("elevation", CsvSchema.ColumnType.NUMBER).addColumn("dem", CsvSchema.ColumnType.NUMBER)
            .addColumn("timezoneCode").addColumn("lastModified").build();
    CsvMapper mapper = new CsvMapper();
    mapper.addMixInAnnotations(Toponym.class, ToponymMixIn1.class);
    ObjectReader reader = mapper.reader(Toponym.class).with(schema);
    BufferedReader cityReader = new BufferedReader(Common.testFileToReader(CITIES_FILE));
    GenericDocumentManager docMgr = Common.client.newDocumentManager();
    DocumentWriteSet set = docMgr.newWriteSet();
    String line = null;
    for (int numWritten = 0; numWritten < MAX_TO_WRITE
            && (line = cityReader.readLine()) != null; numWritten++) {
        Toponym city = reader.readValue(line);
        JacksonDatabindHandle handle = new JacksonDatabindHandle(city);
        handle.getMapper().addMixInAnnotations(Toponym.class, ToponymMixIn2.class);
        set.add(DIRECTORY + "/thirdPartyJsonCities/" + city.getGeoNameId() + ".json", handle);
    }
    docMgr.write(set);
    cityReader.close();
    // we can add assertions later, for now this test just serves as example code and 
    // ensures no exceptions are thrown
}

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