spring.turbo.util.io.function.FileLikePredicate Maven / Gradle / Ivy

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package spring.turbo.util.io.function;

import org.springframework.core.io.Resource;
import org.springframework.lang.Nullable;
import spring.turbo.util.io.RichResource;

import java.io.File;
import java.io.IOException;
import java.nio.file.Path;
import java.util.function.Predicate;

/**
 * @author 应卓
 * @see FileLikePredicateFactories
 * @since 2.0.8
 */
public interface FileLikePredicate extends Predicate {

    @Override
    public boolean test(@Nullable File file);

    // -----------------------------------------------------------------------------------------------------------------

    public default Predicate asFilePredicate() {
        return this;
    }

    public default Predicate asPathPredicate() {
        return path -> this.test(path != null ? path.toFile() : null);
    }

    public default Predicate asResourcePredicate() {
        return resource -> {
            if (resource == null)
                return false;
            try {
                var file = resource.getFile();
                return this.test(file);
            } catch (IOException e) {
                return false;
            }
        };
    }

    public default Predicate asRichResourcePredicate() {
        return resource -> {
            if (resource == null)
                return false;
            try {
                var file = resource.getFile();
                return this.test(file);
            } catch (IOException e) {
                return false;
            }
        };
    }

}