Example usage for org.apache.commons.collections15 ExtendedCollectionUtils isEmpty

Introduction

In this page you can find the example usage for org.apache.commons.collections15 ExtendedCollectionUtils isEmpty.

Prototype

public static final boolean isEmpty(Collection<?> c) 

Source Link

Usage

From source file:org.springframework.util.AggregatedExtendedPlaceholderResolver.java

public void addResolvers(Collection<? extends PlaceholderResolver> resList) {
    if (ExtendedCollectionUtils.isEmpty(resList)) {
        return;//from   ww  w  .  j  a  va 2  s .co m
    } else {
        resolvers.addAll(resList);
    }
}

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From source file:org.springframework.util.AggregatedExtendedPlaceholderResolver.java

@Override
public String resolvePlaceholder(String placeholderName) {
    if (StringUtils.isEmpty(placeholderName)) {
        return null;
    }/*from w  w  w . j av  a 2 s.  c o m*/

    Collection<? extends PlaceholderResolver> resList = getResolvers();
    if (ExtendedCollectionUtils.isEmpty(resList)) {
        return null;
    }

    for (PlaceholderResolver r : resList) {
        String value = r.resolvePlaceholder(placeholderName);
        if (value != null) {
            return value;
        }
    }

    return null;
}

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From source file:org.springframework.util.ExtendedPlaceholderResolverUtils.java

/**
 * Invokes a {@link Closure} on all the non-<code>null</code> placeholder values
 * @param resolver The {@link NamedExtendedPlaceholderResolver} to query
 * @param closure The {@link Closure} to invoke
 * @throws IllegalArgumentException if no resolver or closure
 *///from  ww  w .j av  a 2  s  . co m
public static final void forAllEntriesDo(NamedExtendedPlaceholderResolver resolver,
        Closure<Map.Entry<String, String>> closure) {
    Assert.notNull(resolver, "No resolver");
    Assert.notNull(closure, "No closure");

    Collection<String> names = resolver.getPlaceholderNames();
    if (ExtendedCollectionUtils.isEmpty(names)) {
        return;
    }

    for (String propName : names) {
        String propValue = resolver.resolvePlaceholder(propName);
        if (propValue == null) {
            continue;
        }

        closure.execute(Pair.of(propName, propValue));
    }
}

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