Example usage for com.fasterxml.jackson.databind.module SimpleModule addKeyDeserializer

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind.module SimpleModule addKeyDeserializer.

Prototype

public SimpleModule addKeyDeserializer(Class<?> type, KeyDeserializer deser) 

Source Link

Usage

From source file:org.gytheio.messaging.jackson.ObjectMapperFactory.java

public static ObjectMapper createInstance() {

    QpidJsonBodyCleanerObjectMapper mapper = new QpidJsonBodyCleanerObjectMapper();
    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
    SimpleModule module = new SimpleModule("GytheioJackson",
            new Version(0, 1, 0, "SNAPSHOT", "org.gytheio", "gytheio-messaging-commons"));
    module.addKeyDeserializer(Class.class, new JsonClassKeyDeserializer());
    mapper.registerModule(module);//from w  w w.j av  a 2s. c  om
    return mapper;
}

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From source file:org.nohope.jongo.JacksonProcessor.java

@Nonnull
private static ObjectMapper createPreConfiguredMapper() {
    final ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new JodaModule());
    mapper.registerModule(new ColorModule());

    mapper.configure(FAIL_ON_UNKNOWN_PROPERTIES, false);
    mapper.configure(AUTO_DETECT_GETTERS, false);
    mapper.configure(AUTO_DETECT_SETTERS, false);
    mapper.setSerializationInclusion(NON_NULL);
    mapper.setVisibilityChecker(VisibilityChecker.Std.defaultInstance().withFieldVisibility(ANY));

    mapper.enableDefaultTypingAsProperty(ObjectMapper.DefaultTyping.NON_FINAL,
            JsonTypeInfo.Id.CLASS.getDefaultPropertyName());

    final SimpleModule module = new SimpleModule("jongo", Version.unknownVersion());
    module.addKeySerializer(Object.class, ComplexKeySerializer.S_OBJECT);
    module.addKeyDeserializer(String.class, ComplexKeyDeserializer.S_OBJECT);
    module.addKeyDeserializer(Object.class, ComplexKeyDeserializer.S_OBJECT);

    //addBSONTypeSerializers(module);

    mapper.registerModule(module);/*  w w w. j  av  a 2  s . co  m*/
    return mapper;
}

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From source file:it.polimi.diceH2020.SPACE4Cloud.shared.Test2.java

@Test
public void test1() {
    InstanceData_old data = InstanceDataGenerator_old.build();
    System.out.println(data.toString());

    try {//from   w  ww .ja  v  a 2s .  co  m
        ObjectMapper mapper = new ObjectMapper().registerModule(new Jdk8Module());
        SimpleModule module = new SimpleModule();
        module.addKeyDeserializer(TypeVMJobClassKey.class, TypeVMJobClassKey.getDeserializer());
        mapper.registerModule(module);

        String serialized = mapper.writeValueAsString(data);
        System.out.println(serialized);

        InstanceData_old data2 = mapper.readValue(serialized, InstanceData_old.class);
        System.out.println(data2.toString());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    assertTrue(data.getGamma() == 240);
}

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From source file:io.airlift.json.ObjectMapperProvider.java

@Override
public ObjectMapper get() {
    ObjectMapper objectMapper = new ObjectMapper();

    // ignore unknown fields (for backwards compatibility)
    objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);

    // use ISO dates
    objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);

    // skip fields that are null instead of writing an explicit json null value
    objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);

    // disable auto detection of json properties... all properties must be explicit
    objectMapper.disable(MapperFeature.AUTO_DETECT_CREATORS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_FIELDS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_SETTERS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_GETTERS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_IS_GETTERS);
    objectMapper.disable(MapperFeature.USE_GETTERS_AS_SETTERS);
    objectMapper.disable(MapperFeature.CAN_OVERRIDE_ACCESS_MODIFIERS);

    if (jsonSerializers != null || jsonDeserializers != null || keySerializers != null
            || keyDeserializers != null) {
        SimpleModule module = new SimpleModule(getClass().getName(), new Version(1, 0, 0, null));
        if (jsonSerializers != null) {
            for (Entry<Class<?>, JsonSerializer<?>> entry : jsonSerializers.entrySet()) {
                addSerializer(module, entry.getKey(), entry.getValue());
            }//from  w  ww .j  ava2 s  .  com
        }
        if (jsonDeserializers != null) {
            for (Entry<Class<?>, JsonDeserializer<?>> entry : jsonDeserializers.entrySet()) {
                addDeserializer(module, entry.getKey(), entry.getValue());
            }
        }
        if (keySerializers != null) {
            for (Entry<Class<?>, JsonSerializer<?>> entry : keySerializers.entrySet()) {
                addKeySerializer(module, entry.getKey(), entry.getValue());
            }
        }
        if (keyDeserializers != null) {
            for (Entry<Class<?>, KeyDeserializer> entry : keyDeserializers.entrySet()) {
                module.addKeyDeserializer(entry.getKey(), entry.getValue());
            }
        }
        modules.add(module);
    }

    for (Module module : modules) {
        objectMapper.registerModule(module);
    }

    return objectMapper;
}

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From source file:com.proofpoint.json.ObjectMapperProvider.java

@Override
public ObjectMapper get() {
    ObjectMapper objectMapper = new ObjectMapper();

    // ignore unknown fields (for backwards compatibility)
    objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);

    // use ISO dates
    objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);

    // skip fields that are null instead of writing an explicit json null value
    objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);

    // disable auto detection of json properties... all properties must be explicit
    objectMapper.disable(MapperFeature.AUTO_DETECT_CREATORS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_FIELDS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_SETTERS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_GETTERS);
    objectMapper.disable(MapperFeature.AUTO_DETECT_IS_GETTERS);
    objectMapper.disable(MapperFeature.USE_GETTERS_AS_SETTERS);
    objectMapper.disable(MapperFeature.INFER_PROPERTY_MUTATORS);
    objectMapper.disable(MapperFeature.ALLOW_FINAL_FIELDS_AS_MUTATORS);

    if (jsonSerializers != null || jsonDeserializers != null || keySerializers != null
            || keyDeserializers != null) {
        SimpleModule module = new SimpleModule(getClass().getName(), new Version(1, 0, 0, null, null, null));
        if (jsonSerializers != null) {
            for (Entry<Class<?>, JsonSerializer<?>> entry : jsonSerializers.entrySet()) {
                addSerializer(module, entry.getKey(), entry.getValue());
            }//from   w  w w .j a va 2  s  . c  o  m
        }
        if (jsonDeserializers != null) {
            for (Entry<Class<?>, JsonDeserializer<?>> entry : jsonDeserializers.entrySet()) {
                addDeserializer(module, entry.getKey(), entry.getValue());
            }
        }
        if (keySerializers != null) {
            for (Entry<Class<?>, JsonSerializer<?>> entry : keySerializers.entrySet()) {
                addKeySerializer(module, entry.getKey(), entry.getValue());
            }
        }
        if (keyDeserializers != null) {
            for (Entry<Class<?>, KeyDeserializer> entry : keyDeserializers.entrySet()) {
                module.addKeyDeserializer(entry.getKey(), entry.getValue());
            }
        }
        modules.add(module);
    }

    for (Module module : modules) {
        objectMapper.registerModule(module);
    }

    return objectMapper;
}

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From source file:org.apache.drill.exec.store.parquet.metadata.Metadata.java

/**
 * Read the parquet metadata from a file
 *
 * @param path to metadata file// ww  w  .j  a va  2  s  .  co m
 * @param dirsOnly true for {@link Metadata#METADATA_DIRECTORIES_FILENAME}
 *                 or false for {@link Metadata#METADATA_FILENAME} files reading
 * @param metaContext current metadata context
 */
private void readBlockMeta(Path path, boolean dirsOnly, MetadataContext metaContext, FileSystem fs) {
    Stopwatch timer = logger.isDebugEnabled() ? Stopwatch.createStarted() : null;
    Path metadataParentDir = Path.getPathWithoutSchemeAndAuthority(path.getParent());
    String metadataParentDirPath = metadataParentDir.toUri().getPath();
    ObjectMapper mapper = new ObjectMapper();

    final SimpleModule serialModule = new SimpleModule();
    serialModule.addDeserializer(SchemaPath.class, new SchemaPath.De());
    serialModule.addKeyDeserializer(Metadata_V2.ColumnTypeMetadata_v2.Key.class,
            new Metadata_V2.ColumnTypeMetadata_v2.Key.DeSerializer());
    serialModule.addKeyDeserializer(ColumnTypeMetadata_v3.Key.class,
            new ColumnTypeMetadata_v3.Key.DeSerializer());

    AfterburnerModule module = new AfterburnerModule();
    module.setUseOptimizedBeanDeserializer(true);

    mapper.registerModule(serialModule);
    mapper.registerModule(module);
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    try (FSDataInputStream is = fs.open(path)) {
        boolean alreadyCheckedModification;
        boolean newMetadata = false;
        alreadyCheckedModification = metaContext.getStatus(metadataParentDirPath);

        if (dirsOnly) {
            parquetTableMetadataDirs = mapper.readValue(is, ParquetTableMetadataDirs.class);
            if (timer != null) {
                logger.debug("Took {} ms to read directories from directory cache file",
                        timer.elapsed(TimeUnit.MILLISECONDS));
                timer.stop();
            }
            parquetTableMetadataDirs.updateRelativePaths(metadataParentDirPath);
            if (!alreadyCheckedModification && tableModified(parquetTableMetadataDirs.getDirectories(), path,
                    metadataParentDir, metaContext, fs)) {
                parquetTableMetadataDirs = (createMetaFilesRecursively(
                        Path.getPathWithoutSchemeAndAuthority(path.getParent()).toString(), fs)).getRight();
                newMetadata = true;
            }
        } else {
            parquetTableMetadata = mapper.readValue(is, ParquetTableMetadataBase.class);
            if (timer != null) {
                logger.debug("Took {} ms to read metadata from cache file",
                        timer.elapsed(TimeUnit.MILLISECONDS));
                timer.stop();
            }
            if (new MetadataVersion(parquetTableMetadata.getMetadataVersion())
                    .compareTo(new MetadataVersion(3, 0)) >= 0) {
                ((ParquetTableMetadata_v3) parquetTableMetadata).updateRelativePaths(metadataParentDirPath);
            }
            if (!alreadyCheckedModification && tableModified(parquetTableMetadata.getDirectories(), path,
                    metadataParentDir, metaContext, fs)) {
                parquetTableMetadata = (createMetaFilesRecursively(
                        Path.getPathWithoutSchemeAndAuthority(path.getParent()).toString(), fs)).getLeft();
                newMetadata = true;
            }

            // DRILL-5009: Remove the RowGroup if it is empty
            List<? extends ParquetFileMetadata> files = parquetTableMetadata.getFiles();
            for (ParquetFileMetadata file : files) {
                List<? extends RowGroupMetadata> rowGroups = file.getRowGroups();
                for (Iterator<? extends RowGroupMetadata> iter = rowGroups.iterator(); iter.hasNext();) {
                    RowGroupMetadata r = iter.next();
                    if (r.getRowCount() == 0) {
                        iter.remove();
                    }
                }
            }

        }
        if (newMetadata) {
            // if new metadata files were created, invalidate the existing metadata context
            metaContext.clear();
        }
    } catch (IOException e) {
        logger.error("Failed to read '{}' metadata file", path, e);
        metaContext.setMetadataCacheCorrupted(true);
    }
}

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From source file:org.apache.drill.exec.store.parquet.Metadata.java

/**
 * Read the parquet metadata from a file
 *
 * @param path/*from  w w w  .  j av a  2s.c  o m*/
 * @return
 * @throws IOException
 */
private void readBlockMeta(String path, boolean dirsOnly, MetadataContext metaContext) throws IOException {
    Stopwatch timer = Stopwatch.createStarted();
    Path p = new Path(path);
    Path parentDir = p.getParent(); // parent directory of the metadata file
    ObjectMapper mapper = new ObjectMapper();

    final SimpleModule serialModule = new SimpleModule();
    serialModule.addDeserializer(SchemaPath.class, new SchemaPath.De());
    serialModule.addKeyDeserializer(ColumnTypeMetadata_v2.Key.class,
            new ColumnTypeMetadata_v2.Key.DeSerializer());
    serialModule.addKeyDeserializer(ColumnTypeMetadata_v3.Key.class,
            new ColumnTypeMetadata_v3.Key.DeSerializer());

    AfterburnerModule module = new AfterburnerModule();
    module.setUseOptimizedBeanDeserializer(true);

    mapper.registerModule(serialModule);
    mapper.registerModule(module);
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    FSDataInputStream is = fs.open(p);

    boolean alreadyCheckedModification = false;
    boolean newMetadata = false;

    if (metaContext != null) {
        alreadyCheckedModification = metaContext.getStatus(parentDir.toString());
    }

    if (dirsOnly) {
        parquetTableMetadataDirs = mapper.readValue(is, ParquetTableMetadataDirs.class);
        logger.info("Took {} ms to read directories from directory cache file",
                timer.elapsed(TimeUnit.MILLISECONDS));
        timer.stop();
        if (!alreadyCheckedModification
                && tableModified(parquetTableMetadataDirs.getDirectories(), p, parentDir, metaContext)) {
            parquetTableMetadataDirs = (createMetaFilesRecursively(
                    Path.getPathWithoutSchemeAndAuthority(p.getParent()).toString())).getRight();
            newMetadata = true;
        }
    } else {
        parquetTableMetadata = mapper.readValue(is, ParquetTableMetadataBase.class);
        logger.info("Took {} ms to read metadata from cache file", timer.elapsed(TimeUnit.MILLISECONDS));
        timer.stop();
        if (!alreadyCheckedModification
                && tableModified(parquetTableMetadata.getDirectories(), p, parentDir, metaContext)) {
            parquetTableMetadata = (createMetaFilesRecursively(
                    Path.getPathWithoutSchemeAndAuthority(p.getParent()).toString())).getLeft();
            newMetadata = true;
        }

        // DRILL-5009: Remove the RowGroup if it is empty
        List<? extends ParquetFileMetadata> files = parquetTableMetadata.getFiles();
        for (ParquetFileMetadata file : files) {
            List<? extends RowGroupMetadata> rowGroups = file.getRowGroups();
            for (Iterator<? extends RowGroupMetadata> iter = rowGroups.iterator(); iter.hasNext();) {
                RowGroupMetadata r = iter.next();
                if (r.getRowCount() == 0) {
                    iter.remove();
                }
            }
        }

    }

    if (newMetadata && metaContext != null) {
        // if new metadata files were created, invalidate the existing metadata context
        metaContext.clear();
    }

}

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