com.sun.jersey.core.util.Closing Maven / Gradle / Ivy

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A bundle containing code of all jar-based modules that provide JAX-RS and Jersey-related features. Such a bundle is *only intended* for developers that do not use Maven's dependency system. The bundle does not include code for contributes, tests and samples.

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package com.sun.jersey.core.util;

import java.io.IOException;
import java.io.InputStream;

/**
 * A helper class to aid the closing of {@link InputStream}.
 * 
 * @author [email protected]
 */
public class Closing {

    public static interface Closure {
        public void f(InputStream in) throws IOException;
    }

    public static Closing with(final InputStream in) {
        return new Closing(in);
    }
    
    private final InputStream in;

    public Closing(final InputStream in) {
        this.in = in;
    }

    public void f(final Closure c) throws IOException {
        if (in == null) {
            return;
        }
        try {
            c.f(in);
        } finally {
            try {
                in.close();
            } catch (IOException ex) {
                throw ex;
            }
        }
    }
}