Example usage for java.net URLConnection URLConnection

Introduction

In this page you can find the example usage for java.net URLConnection URLConnection.

Prototype

protected URLConnection(URL url) 

Source Link

Document

Constructs a URL connection to the specified URL.

Usage

From source file:org.calrissian.mango.jms.stream.JmsFileTransferSupportTest.java

public void testFullCycle() throws Exception {
    try {//from w  ww. j  a  va2s . co m
        URL.setURLStreamHandlerFactory(new URLStreamHandlerFactory() {

            @Override
            public URLStreamHandler createURLStreamHandler(String protocol) {
                if ("testprot".equals(protocol))
                    return new URLStreamHandler() {

                        @Override
                        protected URLConnection openConnection(URL u) throws IOException {
                            return new URLConnection(u) {

                                @Override
                                public void connect() throws IOException {

                                }

                                @Override
                                public InputStream getInputStream() throws IOException {
                                    return new ByteArrayInputStream(TEST_STR.getBytes());
                                }

                                @Override
                                public String getContentType() {
                                    return "content/notnull";
                                }
                            };
                        }
                    };
                return null;
            }
        });
    } catch (Error ignored) {
    }

    final ActiveMQTopic ft = new ActiveMQTopic("testFileTransfer");

    ThreadPoolTaskExecutor te = new ThreadPoolTaskExecutor();
    te.initialize();

    JmsFileSenderListener listener = new JmsFileSenderListener();
    final String hashAlgorithm = "MD5";
    listener.setHashAlgorithm(hashAlgorithm);
    listener.setStreamRequestDestination(ft);
    listener.setPieceSize(9);
    listener.setTaskExecutor(te);

    ConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost?broker.persistent=false");
    cf = new SingleTopicConnectionFactory(cf, "test");
    JmsTemplate jmsTemplate = new JmsTemplate();
    jmsTemplate.setConnectionFactory(cf);
    jmsTemplate.setReceiveTimeout(60000);
    listener.setJmsTemplate(jmsTemplate);

    Connection conn = cf.createConnection();
    conn.start();
    Session sess = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = sess.createConsumer(ft);
    consumer.setMessageListener(listener);

    JmsFileReceiver receiver = new JmsFileReceiver();
    receiver.setHashAlgorithm(hashAlgorithm);
    receiver.setStreamRequestDestination(ft);
    receiver.setJmsTemplate(jmsTemplate);
    receiver.setPieceSize(9);

    JmsFileReceiverInputStream stream = (JmsFileReceiverInputStream) receiver.receiveStream("testprot:test");
    StringBuilder buffer = new StringBuilder();
    int read;
    while ((read = stream.read()) >= 0) {
        buffer.append((char) read);
    }
    stream.close();

    assertEquals(TEST_STR, buffer.toString());

    conn.stop();

}

---

From source file:com.samczsun.helios.bootloader.Bootloader.java

private static void loadSWTLibrary()
        throws IOException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
    String name = getOSName();/*from w  w  w . j a  v a2s. c  o  m*/
    if (name == null)
        throw new IllegalArgumentException("Cannot determine OS");
    String arch = getArch();
    if (arch == null)
        throw new IllegalArgumentException("Cannot determine architecture");

    String swtLocation = "/swt/org.eclipse.swt." + name + "." + arch + "-" + Constants.SWT_VERSION + ".jar";

    System.out.println("Loading SWT version " + swtLocation.substring(5));

    InputStream swtIn = Bootloader.class.getResourceAsStream(swtLocation);
    if (swtIn == null)
        throw new IllegalArgumentException("SWT library not found");
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    IOUtils.copy(swtIn, outputStream);
    ByteArrayInputStream swt = new ByteArrayInputStream(outputStream.toByteArray());

    URL.setURLStreamHandlerFactory(protocol -> { //JarInJar!
        if (protocol.equals("swt")) {
            return new URLStreamHandler() {
                protected URLConnection openConnection(URL u) {
                    return new URLConnection(u) {
                        public void connect() {
                        }

                        public InputStream getInputStream() {
                            return swt;
                        }
                    };
                }

                protected void parseURL(URL u, String spec, int start, int limit) {
                    // Don't parse or it's too slow
                }
            };
        }
        return null;
    });

    ClassLoader classLoader = Bootloader.class.getClassLoader();
    Method method = URLClassLoader.class.getDeclaredMethod("addURL", URL.class);
    method.setAccessible(true);
    method.invoke(classLoader, new URL("swt://load"));

    System.out.println("Loaded SWT Library");
}

---

From source file:com.heliosdecompiler.helios.bootloader.Bootloader.java

private static byte[] loadSWTLibrary() throws IOException, NoSuchMethodException, IllegalAccessException,
        InvocationTargetException, ClassNotFoundException {
    String name = getOSName();/*ww w. jav  a  2  s .com*/
    if (name == null)
        throw new IllegalArgumentException("Cannot determine OS");
    String arch = getArch();
    if (arch == null)
        throw new IllegalArgumentException("Cannot determine architecture");

    String artifactId = "org.eclipse.swt." + name + "." + arch;
    String swtLocation = artifactId + "-" + SWT_VERSION + ".jar";

    System.out.println("Loading SWT version " + swtLocation);

    byte[] data = null;

    File savedJar = new File(Constants.DATA_DIR, swtLocation);
    if (savedJar.isDirectory() && !savedJar.delete())
        throw new IllegalArgumentException("Saved file is a directory and could not be deleted");

    if (savedJar.exists() && savedJar.canRead()) {
        try {
            System.out.println("Loading from saved file");
            InputStream inputStream = new FileInputStream(savedJar);
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            copy(inputStream, outputStream);
            data = outputStream.toByteArray();
        } catch (IOException exception) {
            System.out.println("Failed to load from saved file.");
            exception.printStackTrace(System.out);
        }
    }
    if (data == null) {
        InputStream fromJar = Bootloader.class.getResourceAsStream("/swt/" + swtLocation);
        if (fromJar != null) {
            try {
                System.out.println("Loading from within JAR");
                ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
                copy(fromJar, outputStream);
                data = outputStream.toByteArray();
            } catch (IOException exception) {
                System.out.println("Failed to load within JAR");
                exception.printStackTrace(System.out);
            }
        }
    }
    if (data == null) {
        URL url = new URL("https://maven-eclipse.github.io/maven/org/eclipse/swt/" + artifactId + "/"
                + SWT_VERSION + "/" + swtLocation);
        try {
            System.out.println("Loading over the internet");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            if (connection.getResponseCode() == 200) {
                InputStream fromURL = connection.getInputStream();
                ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
                copy(fromURL, outputStream);
                data = outputStream.toByteArray();
            } else {
                throw new IOException(connection.getResponseCode() + ": " + connection.getResponseMessage());
            }
        } catch (IOException exception) {
            System.out.println("Failed to load over the internet");
            exception.printStackTrace(System.out);
        }
    }

    if (data == null) {
        throw new IllegalArgumentException("Failed to load SWT");
    }

    if (!savedJar.exists()) {
        try {
            System.out.println("Writing to saved file");
            if (savedJar.createNewFile()) {
                FileOutputStream fileOutputStream = new FileOutputStream(savedJar);
                fileOutputStream.write(data);
                fileOutputStream.close();
            } else {
                throw new IOException("Could not create new file");
            }
        } catch (IOException exception) {
            System.out.println("Failed to write to saved file");
            exception.printStackTrace(System.out);
        }
    }

    byte[] dd = data;

    URL.setURLStreamHandlerFactory(protocol -> { //JarInJar!
        if (protocol.equals("swt")) {
            return new URLStreamHandler() {
                protected URLConnection openConnection(URL u) {
                    return new URLConnection(u) {
                        public void connect() {
                        }

                        public InputStream getInputStream() {
                            return new ByteArrayInputStream(dd);
                        }
                    };
                }

                protected void parseURL(URL u, String spec, int start, int limit) {
                    // Don't parse or it's too slow
                }
            };
        }
        return null;
    });

    ClassLoader classLoader = Bootloader.class.getClassLoader();
    Method method = URLClassLoader.class.getDeclaredMethod("addURL", URL.class);
    method.setAccessible(true);
    method.invoke(classLoader, new URL("swt://load"));

    return data;
}

---

From source file:org.bimserver.plugins.classloaders.FileJarClassLoader.java

@Override
public URL findResource(String name) {
    try {//  www.ja va2  s. c o  m
        final Lazy<InputStream> lazyInputStream = findPath(name);
        if (lazyInputStream != null) {
            try {
                URL baseUrl = new URL("file:" + name);
                URL url = new URL(baseUrl, name, new URLStreamHandler() {
                    @Override
                    protected URLConnection openConnection(URL u) throws IOException {
                        return new URLConnection(u) {
                            @Override
                            public void connect() throws IOException {
                            }

                            @Override
                            public InputStream getInputStream() throws IOException {
                                return lazyInputStream.get();
                            }
                        };
                    }
                });
                return url;
            } catch (MalformedURLException e) {
                LOGGER.error("", e);
            }
        } else {
            LOGGER.debug("File not found: " + name + " (in " + jarFile.getFileName().toString() + ")");
        }
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    return null;
}

---

From source file:org.bimserver.plugins.classloaders.JarClassLoader.java

@Override
protected URL findResource(final String name) {
    if (map.containsKey(name)) {
        try {/*from   w w  w.  ja  v a2 s . c  om*/
            return new URL(new URL("jar:" + jarFile.toURI().toURL() + "!/" + name), name,
                    new URLStreamHandler() {
                        @Override
                        protected URLConnection openConnection(URL u) throws IOException {
                            return new URLConnection(u) {
                                @Override
                                public void connect() throws IOException {
                                }

                                @Override
                                public InputStream getInputStream() throws IOException {
                                    return new InflaterInputStream(new ByteArrayInputStream(map.get(name)));
                                }
                            };
                        }
                    });
        } catch (MalformedURLException e) {
            LOGGER.error("", e);
        }
    }
    return null;
}

---

From source file:org.bimserver.plugins.classloaders.MemoryJarClassLoader.java

@Override
public URL findResource(final String name) {
    if (map.containsKey(name)) {
        try {//  www .  ja v a 2s. c o m
            return new URL(new URL("jar:" + jarFile.toURI().toURL() + "!/" + name), name,
                    new URLStreamHandler() {
                        @Override
                        protected URLConnection openConnection(URL u) throws IOException {
                            return new URLConnection(u) {
                                @Override
                                public void connect() throws IOException {
                                }

                                @Override
                                public InputStream getInputStream() throws IOException {
                                    return new InflaterInputStream(new ByteArrayInputStream(map.get(name)));
                                }
                            };
                        }
                    });
        } catch (MalformedURLException e) {
            LOGGER.error("", e);
        }
    }
    return null;
}

---

From source file:org.bimserver.plugins.JarClassLoader.java

@Override
protected URL findResource(final String name) {
    if (map.containsKey(name)) {
        try {/*  w w  w  .  j  a  va  2  s .  co  m*/
            return new URL(new URL("jar:" + jarFile.toURI().toURL() + "!/" + name), name,
                    new URLStreamHandler() {
                        @Override
                        protected URLConnection openConnection(URL u) throws IOException {
                            return new URLConnection(u) {
                                @Override
                                public void connect() throws IOException {
                                }

                                @Override
                                public InputStream getInputStream() throws IOException {
                                    return new ByteArrayInputStream(map.get(name));
                                }
                            };
                        }
                    });
        } catch (MalformedURLException e) {
            LOGGER.error("", e);
        }
    }
    return null;
}

---

From source file:org.mc4j.ems.connection.support.classloader.deepjar.Handler.java

/**
 * @see java.net.URLStreamHandler#openConnection(java.net.URL)
 *//* w w  w.  ja v a2  s  . c  o m*/
protected URLConnection openConnection(final URL u) throws IOException {
    log.debug("Deepjar handler is opening " + u);

    final String resource = u.toString().substring(PROTOCOL_LENGTH);
    return new URLConnection(u) {

        public void connect() {
        }

        public InputStream getInputStream() {
            ClassLoader parent = NestedJarClassLoader.getRunningLoader(u);
            return parent.getResourceAsStream(resource);
        }
    };
}

---