Example usage for org.apache.commons.lang3 Validate notNull

Introduction

In this page you can find the example usage for org.apache.commons.lang3 Validate notNull.

Prototype

public static <T> T notNull(final T object, final String message, final Object... values) 

Source Link

Document

Validate that the specified argument is not null ; otherwise throwing an exception with the specified message.

Usage

From source file:edu.sabanciuniv.sentilab.utils.extensions.IterablesExtensions.java

/**
 * Calculates the sum of a given iterable of {@link Number} type items.
 * @param iterable the {@link Iterable} of {@link Number} type items whose sum is desired.
 * @return the {@link Double} value with the sum.
 *//*w ww .ja v a  2  s .c  om*/
public static <I extends Number> double sum(Iterable<I> iterable) {
    Validate.notNull(iterable, CannedMessages.NULL_ARGUMENT, "iterable");

    double s = 0;
    for (I item : iterable) {
        s += item.doubleValue();
    }

    return s;
}

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From source file:edu.sabanciuniv.sentilab.utils.extensions.MapsExtensions.java

/**
 * Increments the value of a given key in a map.
 * @param map the {@link Map} to use./*w  w  w  .j a v a2  s  . c  om*/
 * @param key the key to look for.
 * @param by the value to increment by.
 * @param add a {@link Boolean} flag indicating whether to add the key if it doesn't exist or not.
 * @return the map that was passed in.
 */
public static <K> Map<K, Double> increment(Map<K, Double> map, K key, Double by, boolean add) {
    Validate.notNull(map, CannedMessages.NULL_ARGUMENT, "map");

    Double value = map.get(key);
    if (value == null && add) {
        value = 0.0;
    }

    if (value != null) {
        map.put(key, value + by);
    }

    return map;
}

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From source file:eu.ubipol.opinionmining.database_engine.DatabaseAdapter.java

public DatabaseAdapter(AspectLexicon lexicon) {
    Validate.notNull(lexicon, CannedMessages.NULL_ARGUMENT, "lexicon");
    this.lexicon = lexicon;
}

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From source file:com.premiumminds.billy.core.util.BillyValidator.java

public static <T> T mandatory(T o, String fieldName) {
    Validate.notNull(o, BillyValidator.instance.localizer.getString("invalid.mandatory", fieldName), o);
    return o;/*w  w  w .  ja  v a2 s. co  m*/
}

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