Java Stream Close closeQuietly(InputStream inputstream)

Description

Closes an input stream quietly (i.e.

License

LGPL

Declaration

public static void closeQuietly(InputStream inputstream) 

Method Source Code

//package com.java2s;
//License from project: LGPL 

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

public class Main {
    /**//  w  w  w .j  ava  2  s.co  m
     * Closes an input stream quietly (i.e. no exception is thrown) while
     * inspecting its class. The inspection is done to avoid closing streams
     * associates with jar files that may cause later errors like
     * 
     * <pre>
     * Caused by: java.io.IOException: Stream closed
     * </pre>
     * 
     * So, all streams whose class name does not start with
     * <code>sun.net.www.protocol.jar.JarURLConnection</code> will be closed
     * 
     * @since 2016-09-20
     */
    public static void closeQuietly(InputStream inputstream) {
        try {
            close(inputstream);
        } catch (IOException e) {
            // do nothing as we should be quiet
        }
    }

    /**
     * Closes an input stream while inspecting its class. The inspection is done
     * to avoid closing streams associates with jar files that may cause later
     * errors like
     * 
     * <pre>
     * Caused by: java.io.IOException: Stream closed
     * </pre>
     * 
     * So, all streams whose class name does not start with
     * <code>sun.net.www.protocol.jar.JarURLConnection</code> will be closed
     * 
     * @throws IOException
     * 
     * @since 2016-09-20
     */
    public static void close(InputStream inputstream) throws IOException {
        if (inputstream != null) {
            String inputstreamClassName = inputstream.getClass().getName();
            if (!inputstreamClassName.startsWith("sun.net.www.protocol.jar.JarURLConnection")) {
                inputstream.close();
            }
        }
    }
}

Related

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2. closeQuietly(InputStream input)
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