Java URL to InputStream openFileOrURL(String name)

Description

open File Or URL

License

LGPL

Declaration

public static InputStream openFileOrURL(String name) throws IOException 

Method Source Code

//package com.java2s;
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1//  ww w  .  ja va2  s.  c o  m
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import java.net.URL;

public class Main {
    public static InputStream openFileOrURL(String name) throws IOException {
        if (name.startsWith("resource:")) {
            URL url = Thread.currentThread().getContextClassLoader().getResource(name.substring(9));
            if (url == null)
                throw new FileNotFoundException(name);
            return url.openStream();
        }
        if (name.indexOf(':') < 2)
            return new FileInputStream(name);
        return new URL(name).openStream();
    }
}

Related

1. getUrlContents(String url)
2. getUrlContents(String urlString)
3. getUrlContents(String urlString)
4. getUrlContents(URL url)
5. openFileOrURL(String fileNameOrUrl)
6. openInputStream(URL url)
7. openStream(String urlStr)
8. openStream(URL url)
9. openStream(URL url)