jdk/test/java/nio/file/Files/ContentType.java
author alanb
Sat, 27 Jun 2009 21:46:53 +0100
changeset 3065 452aaa2899fc
parent 2057 3acf8e5e2ca0
child 3424 8f6c0145dc8f
permissions -rw-r--r--
6838333: New I/O: Update file system API to jsr203/nio2-b101 6844313: New I/O: File timestamps should be represented by a FileTime rather than a long+TimeUnit Reviewed-by: sherman
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/*
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 * Copyright 2008-2009 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/* @test
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 * @bug 4313887
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 * @summary Unit test for probeContentType method
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 * @library ..
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 * @build ContentType SimpleFileTypeDetector
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 */
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import java.nio.file.*;
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import java.io.*;
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/**
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 * Uses Files.probeContentType to probe html file and custom file type.
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 */
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public class ContentType {
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    static Path createHtmlFile() throws IOException {
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        Path file = File.createTempFile("foo", ".html").toPath();
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        OutputStream out = file.newOutputStream();
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        try {
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            out.write("<html><body>foo</body></html>".getBytes());
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        } finally {
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            out.close();
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        }
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        return file;
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    }
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    static Path createGrapeFile() throws IOException {
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        return File.createTempFile("red", ".grape").toPath();
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    }
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    public static void main(String[] args) throws IOException {
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        // exercise default file type detector
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        Path file = createHtmlFile();
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        try {
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            String type = Files.probeContentType(file);
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            if (type == null) {
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                System.err.println("Content type cannot be determined - test skipped");
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            } else {
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                if (!type.equals("text/html"))
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                    throw new RuntimeException("Unexpected type: " + type);
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            }
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        } finally {
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            file.delete();
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        }
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        // exercise custom file type detector
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        file = createGrapeFile();
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        try {
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            String type = Files.probeContentType(file);
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            if (type == null)
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                throw new RuntimeException("Custom file type detector not installed?");
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            if (!type.equals("grape/unknown"))
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                throw new RuntimeException("Unexpected type: " + type);
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        } finally {
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            file.delete();
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        }
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    }
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}