com.thoughtworks.webstub.utils.CollectionUtils Maven / Gradle / Ivy

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package com.thoughtworks.webstub.utils;

import org.apache.commons.collections.Predicate;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

public class CollectionUtils {
    public static  PredicatedPartition partition(Collection collection, Predicate predicate) {
        List pre = new ArrayList();
        List post = new ArrayList();
        for (T t : collection) {
            (predicate.evaluate(t) ? pre : post).add(t);
        }
        return new PredicatedPartition(pre, post);
    }

    public static  Collection map(Collection inputs, Mapper mapper) {
        List outputs = new ArrayList();
        for (S input : inputs) {
            outputs.add(mapper.map(input));
        }

        return outputs;
    }

    public static  boolean exists(Collection collection, com.thoughtworks.webstub.utils.Predicate predicate) {
        for (T t : collection) {
            if (predicate.satisfies(t))
                return true;
        }

        return false;
    }
}