Example usage for java.lang NullPointerException NullPointerException

Introduction

In this page you can find the example usage for java.lang NullPointerException NullPointerException.

Prototype

public NullPointerException(String s)

Source Link

Document

Constructs a NullPointerException with the specified detail message.

Usage

From source file:eagle.storage.jdbc.entity.JdbcEntitySerDeserHelper.java

/**
 *
 * @param row//from   ww w  . j a  va 2s. c om
 * @param entityDefinition
 * @param <E>
 * @return
 * @throws IllegalAccessException
 * @throws InstantiationException
 * @throws InvocationTargetException
 * @throws NoSuchMethodException
 */
public static <E extends TaggedLogAPIEntity> E buildEntity(Map<String, Object> row,
        JdbcEntityDefinition entityDefinition) throws IllegalAccessException, InstantiationException,
        InvocationTargetException, NoSuchMethodException {
    EntityDefinition ed = entityDefinition.getInternal();

    Class<? extends TaggedLogAPIEntity> clazz = ed.getEntityClass();
    if (clazz == null) {
        throw new NullPointerException("Entity class of service " + ed.getService() + " is null");
    }

    TaggedLogAPIEntity obj = clazz.newInstance();
    Map<String, Qualifier> map = ed.getDisplayNameMap();
    for (Map.Entry<String, Object> entry : row.entrySet()) {
        // timestamp;
        if (JdbcConstants.TIMESTAMP_COLUMN_NAME.equals(entry.getKey())) {
            obj.setTimestamp((Long) entry.getValue());
            continue;
        }

        // set metric as prefix for generic metric
        if (entityDefinition.getInternal().getService().equals(GenericMetricEntity.GENERIC_METRIC_SERVICE)
                && JdbcConstants.METRIC_NAME_COLUMN_NAME.equals(entry.getKey())) {
            obj.setPrefix((String) entry.getValue());
            continue;
        }

        // rowkey: uuid
        if (JdbcConstants.ROW_KEY_COLUMN_NAME.equals(entry.getKey())) {
            obj.setEncodedRowkey((String) entry.getValue());
            continue;
        }

        Qualifier q = map.get(entry.getKey().toLowerCase());
        if (q == null) {
            // if it's not pre-defined qualifier, it must be tag unless it's a bug
            if (obj.getTags() == null) {
                obj.setTags(new HashMap<String, String>());
            }
            obj.getTags().put(entry.getKey(), (String) entry.getValue());
            continue;
        }

        // parse different types of qualifiers
        String fieldName = q.getDisplayName();
        // PropertyDescriptor pd = PropertyUtils.getPropertyDescriptor(obj, fieldName);
        PropertyDescriptor pd = getPropertyDescriptor(obj, fieldName);
        if (entry.getValue() != null) {
            pd.getWriteMethod().invoke(obj, entry.getValue());
        }
    }

    if (!entityDefinition.getInternal().getService().equals(GenericMetricEntity.GENERIC_METRIC_SERVICE)) {
        obj.setPrefix(entityDefinition.getInternal().getPrefix());
    }
    return (E) obj;
}

From source file:net.darkmist.alib.res.PkgRes.java

public PkgRes(Class<?> cls) {
    if (cls == null)
        throw new NullPointerException("cls is null");
    this.loader = cls.getClassLoader();
    prefix = appendResourcePathPrefixFor(null, cls).toString();
}

From source file:org.usrz.libs.riak.response.JsonContentHandler.java

public JsonContentHandler(ObjectMapper mapper, Class<T> type) {
    if (mapper == null)
        throw new NullPointerException("Null object mapper");
    if (type == null)
        throw new NullPointerException("Null type");
    this.mapper = mapper;
    this.type = type;
}

From source file:it.cnr.isti.hlt.processfast.data.RecursiveIndexFileLineIteratorProvider.java

public RecursiveIndexFileLineIteratorProvider(String baseDir, String regexInclusion) {
    if (baseDir == null)
        throw new NullPointerException("The collection is 'null'");

    files = listFiles(baseDir, regexInclusion);
}