Example usage for java.util Enumeration nextElement

Introduction

In this page you can find the example usage for java.util Enumeration nextElement.

Prototype

E nextElement();

Source Link

Document

Returns the next element of this enumeration if this enumeration object has at least one more element to provide.

Usage

From source file:com.mc.printer.model.utils.ZipHelper.java

/**
 * jar????/*from w  w  w .j  a  v  a 2 s.  com*/
 *
 * @param jar ????jar
 * @param subDir jar???????
 * @param loc ????
 * @param force ????
 * @return
 */
public static boolean unZip(String jar, String subDir, String loc, boolean force) {
    try {
        File base = new File(loc);
        if (!base.exists()) {
            base.mkdirs();
        }

        ZipFile zip = new ZipFile(new File(jar));
        Enumeration<? extends ZipEntry> entrys = zip.entries();
        while (entrys.hasMoreElements()) {
            ZipEntry entry = entrys.nextElement();
            String name = entry.getName();
            if (!name.startsWith(subDir)) {
                continue;
            }
            //subDir
            name = name.replace(subDir, "").trim();
            if (name.length() < 2) {
                log.debug(name + "  < 2");
                continue;
            }
            if (entry.isDirectory()) {
                File dir = new File(base, name);
                if (!dir.exists()) {
                    dir.mkdirs();
                    log.debug("create directory");
                } else {
                    log.debug("the directory is existing.");
                }
                log.debug(name + " is a directory");
            } else {
                File file = new File(base, name);
                if (file.exists() && force) {
                    file.delete();
                }
                if (!file.exists()) {
                    InputStream in = zip.getInputStream(entry);
                    FileUtils.copyInputStreamToFile(in, file);
                    log.debug("create file.");
                    in.close();
                } else {
                    log.debug("the file is existing");
                }
                log.debug(name + " is not a directory");
            }
        }
        zip.close();
    } catch (ZipException ex) {
        ex.printStackTrace();
        log.error("file unzip failed.", ex);
        return false;
    } catch (IOException ex) {
        ex.printStackTrace();
        log.error("file IO failed", ex);
        return false;
    }
    return true;
}

---

From source file:Main.java

public static String GetIPAdresses_JAVA() {
    String allIPAdresses = "";
    Enumeration<NetworkInterface> e = null;

    try {/*from  w w w  .ja  v  a 2  s.c  o  m*/
        e = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e1) {
        e1.printStackTrace();
    }

    if (e != null) {
        while (e.hasMoreElements()) {
            NetworkInterface n = (NetworkInterface) e.nextElement();
            Enumeration<InetAddress> ee = n.getInetAddresses();
            while (ee.hasMoreElements()) {
                InetAddress i = (InetAddress) ee.nextElement();
                allIPAdresses += (i.getHostAddress() + "\n");
            }
        }
    }

    return allIPAdresses;
}

---

From source file:info.magnolia.cms.util.ServletUtil.java

/**
 * Returns the init parameters for a {@link javax.servlet.ServletConfig} object as a Map, preserving the order in which they are exposed
 * by the {@link javax.servlet.ServletConfig} object.
 *//*from www  . j  ava  2s.com*/
public static LinkedHashMap<String, String> initParametersToMap(ServletConfig config) {
    LinkedHashMap<String, String> initParameters = new LinkedHashMap<String, String>();
    Enumeration parameterNames = config.getInitParameterNames();
    while (parameterNames.hasMoreElements()) {
        String parameterName = (String) parameterNames.nextElement();
        initParameters.put(parameterName, config.getInitParameter(parameterName));
    }
    return initParameters;
}

---

From source file:info.magnolia.cms.util.ServletUtil.java

/**
 * Returns the init parameters for a {@link javax.servlet.FilterConfig} object as a Map, preserving the order in which they are exposed
 * by the {@link javax.servlet.FilterConfig} object.
 *///from w  w  w  . jav a  2s  .co m
public static LinkedHashMap<String, String> initParametersToMap(FilterConfig config) {
    LinkedHashMap<String, String> initParameters = new LinkedHashMap<String, String>();
    Enumeration parameterNames = config.getInitParameterNames();
    while (parameterNames.hasMoreElements()) {
        String parameterName = (String) parameterNames.nextElement();
        initParameters.put(parameterName, config.getInitParameter(parameterName));
    }
    return initParameters;
}

---

From source file:net.big_oh.common.web.WebUtil.java

/**
 * //from www  . j a v  a  2s  . c o m
 * Calculate an <b>approximation</b> of the memory consumed by the objects
 * stored under each attribute of a user's {@link HttpSession}. The estimate
 * will often be greater than the actual value because of "double counting"
 * objects that appear multiple times in the attribute value's object graph.
 * 
 * @param session
 *            An HttpSession object from any web application.
 * @return An <b>approximation</b> of the memory consumed for each attribute
 *         <b>name</b> in the session.
 */
public static Map<String, Integer> getSessionAttributeNameToApproxSizeInBytesMap(HttpSession session) {

    // Use an IdentityHashMap because we don't want to miss distinct objects
    // that are equivalent according to equals(..) method.
    Map<String, Integer> sessionAttributeNameToApproxSizeInBytesMap = new IdentityHashMap<String, Integer>();

    Enumeration<?> enumeration = session.getAttributeNames();
    while (enumeration.hasMoreElements()) {
        String attributeName = (String) enumeration.nextElement();
        session.getAttribute(attributeName);

        try {
            sessionAttributeNameToApproxSizeInBytesMap.put(attributeName,
                    new Integer(approximateObjectSize(attributeName)));
        } catch (IOException ioe) {
            logger.error("Failed to approximate size of session attribute name: "
                    + attributeName.getClass().getName(), ioe);
            sessionAttributeNameToApproxSizeInBytesMap.put(attributeName, new Integer(0));
        }

    }

    return sessionAttributeNameToApproxSizeInBytesMap;

}

---

From source file:ReflectUtils.java

/**
 * Scans all classes accessible from the context class loader which belong to the given package and subpackages.
 *
 * @param packageName The base package//from ww  w. j a v  a2  s . c  o  m
 * @return The classes
 * @throws ClassNotFoundException
 * @throws IOException
 */
private static Class[] getClasses(String packageName) throws ClassNotFoundException, IOException {
    //        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    ClassLoader classLoader = ClassLoader.getSystemClassLoader();
    assert classLoader != null;
    String path = packageName.replace('.', '/');
    Enumeration<URL> resources = classLoader.getResources(path);
    List<File> dirs = new ArrayList<File>();
    while (resources.hasMoreElements()) {
        URL resource = resources.nextElement();
        dirs.add(new File(resource.getFile()));
    }
    ArrayList<Class> classes = new ArrayList<Class>();
    for (File directory : dirs) {
        classes.addAll(findClasses(directory, packageName));
    }
    return classes.toArray(new Class[classes.size()]);
}

---

From source file:edu.utah.further.i2b2.hook.further.web.ServletUtil.java

/**
 * @param request/*from www  .ja  v a  2 s .c  o  m*/
 */
public static void printRequestParameters(final HttpServletRequest request) {
    log.debug("Request parameters:");
    final Enumeration<?> parameterNames = request.getParameterNames();
    while (parameterNames.hasMoreElements()) {
        final String name = (String) parameterNames.nextElement();
        log.debug(name + " = " + request.getParameter(name));
    }
}

---

From source file:edu.utah.further.i2b2.hook.further.web.ServletUtil.java

/**
 * @param request//from   w  w  w.  j a  v  a2 s . com
 */
public static void printRequestAttributes(final HttpServletRequest request) {
    log.debug("Request attributes:");
    final Enumeration<?> attributeNames = request.getAttributeNames();
    while (attributeNames.hasMoreElements()) {
        final String name = (String) attributeNames.nextElement();
        log.debug(name + " = " + request.getAttribute(name));
    }
}

---

From source file:com.modeln.build.ctrl.charts.CMnPatchCountChart.java

/**
 * Create a chart representing an arbitrary collection of name/value pairs. 
 * The data is passed in as a hashtable where the key is the name and the  
 * value is the number items. /*from w  ww. ja v a 2s .  c  o  m*/
 */
public static final JFreeChart getBarChart(Hashtable<String, Integer> data, String title, String nameLabel,
        String valueLabel) {
    JFreeChart chart = null;

    // Sort the data by name
    Vector<String> names = new Vector<String>();
    Enumeration nameList = data.keys();
    while (nameList.hasMoreElements()) {
        names.add((String) nameList.nextElement());
    }
    Collections.sort(names);

    // Populate the dataset with data
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    Iterator keyIter = names.iterator();
    while (keyIter.hasNext()) {
        String name = (String) keyIter.next();
        Integer value = data.get(name);
        dataset.addValue(value, valueLabel, name);
    }

    // Create the chart
    chart = ChartFactory.createBarChart(title, /*title*/
            nameLabel, /*categoryAxisLabel*/
            valueLabel, /*valueAxisLabel*/
            dataset, /*dataset*/
            PlotOrientation.VERTICAL, /*orientation*/
            false, /*legend*/
            false, /*tooltips*/
            false /*urls*/
    );

    // get a reference to the plot for further customization...
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    //chartFormatter.formatMetricChart(plot, "min");

    // Set the chart colors
    plot.setBackgroundPaint(Color.white);
    plot.setDomainGridlinePaint(Color.lightGray);
    plot.setRangeGridlinePaint(Color.lightGray);

    // set the range axis to display integers only...
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    // disable bar outlines...
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);
    renderer.setShadowVisible(false);
    final GradientPaint gp = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, Color.blue);
    renderer.setSeriesPaint(0, gp);

    // Set the label orientation
    CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);

    return chart;
}

---

From source file:org.sakuli.actions.environment.CipherUtil.java

/**
 * Determines a valid network interfaces.
 *
 * @return ethernet interface name/*from w ww .j a  v  a2 s  . c om*/
 * @throws Exception
 */
static String autodetectValidInterfaceName() throws Exception {
    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
    while (interfaces.hasMoreElements()) {
        NetworkInterface anInterface = interfaces.nextElement();
        if (anInterface.getHardwareAddress() != null && anInterface.getHardwareAddress().length == 6) {
            return anInterface.getName();
        }
    }
    throw new Exception("No network interface with a MAC address is present, please check your os settings!");
}

---

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