Example usage for java.util Collections list

Introduction

In this page you can find the example usage for java.util Collections list.

Prototype

public static <T> ArrayList<T> list(Enumeration<T> e) 

Source Link

Document

Returns an array list containing the elements returned by the specified enumeration in the order they are returned by the enumeration.

Usage

From source file:Main.java

public static String getJarSignature(String packagePath) throws IOException {
    Pattern signatureFilePattern = Pattern.compile("META-INF/[A-Z]+\\.SF");

    ZipFile packageZip = null;//from   w  ww  . ja  va2s.  c o  m
    try {
        packageZip = new ZipFile(packagePath);
        // For each file in the zip.
        for (ZipEntry entry : Collections.list(packageZip.entries())) {
            // Ignore non-signature files.
            if (!signatureFilePattern.matcher(entry.getName()).matches()) {
                continue;
            }

            BufferedReader sigContents = null;
            try {
                sigContents = new BufferedReader(new InputStreamReader(packageZip.getInputStream(entry)));
                // For each line in the signature file.
                while (true) {
                    String line = sigContents.readLine();
                    if (line == null || line.equals("")) {
                        throw new IllegalArgumentException(
                                "Failed to find manifest digest in " + entry.getName());
                    }
                    String prefix = "SHA1-Digest-Manifest: ";
                    if (line.startsWith(prefix)) {
                        return line.substring(prefix.length());
                    }
                }
            } finally {
                if (sigContents != null) {
                    sigContents.close();
                }
            }
        }
    } finally {
        if (packageZip != null) {
            packageZip.close();
        }
    }

    throw new IllegalArgumentException("Failed to find signature file.");
}

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From source file:Main.java

/**
 * Convenience method for retrieving the UIDefault for a single property
 * of a particular class.//from w ww.ja v a2  s . c  om
 * 
 * @param clazz the class of interest
 * @param property the property to query
 * @return the UIDefault property, or null if not found
 */
public static Object getUIDefaultOfClass(Class<?> clazz, String property) {
    Object retVal = null;
    UIDefaults defaults = getUIDefaultsOfClass(clazz);
    List<Object> listKeys = Collections.list(defaults.keys());
    for (Object key : listKeys) {
        if (key.equals(property)) {
            return defaults.get(key);
        }
        if (key.toString().equalsIgnoreCase(property)) {
            retVal = defaults.get(key);
        }
    }
    return retVal;
}

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From source file:com.ihelpoo.app.common.DeviceUtil.java

/**
 * Returns MAC address of the given interface name.
 *
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return mac address or empty string/* w ww  .j ava  2s.c o m*/
 */
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
    /*try {
    // this is so Linux hack
    return loadFileAsString("/sys/class/net/" +interfaceName + "/address").toUpperCase().trim();
    } catch (IOException ex) {
    return null;
    }*/
}

---

From source file:de.uni_bonn.bit.IPAddressHelper.java

/**
 * Returns a list of IP addresses that can be used to communicate with a peer on a
 * different machine. The IP addresses are in CIDR notation (e.g. 192.168.2.1/24).
 * @return//  w ww  .ja v  a 2  s. c o  m
 */
public static List<String> getAllUsableIPAddresses() {
    List<String> output = new ArrayList<String>();
    try {
        for (NetworkInterface ni : Collections.list(NetworkInterface.getNetworkInterfaces())) {
            for (InterfaceAddress address : ni.getInterfaceAddresses()) {
                if (!address.getAddress().isMulticastAddress() && !address.getAddress().isLinkLocalAddress()
                        && !address.getAddress().isLoopbackAddress()) {
                    output.add(address.getAddress().getHostAddress() + "/" + address.getNetworkPrefixLength());
                }
            }
        }
    } catch (SocketException e) {

    }
    return output;
}

---

From source file:Main.java

public static String getLocalIpAddress() {
    try {//from  w ww  .  j  a v a2 s .c o  m
        String ipv4;
        List<NetworkInterface> nilist = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface ni : nilist) {
            List<InetAddress> ialist = Collections.list(ni.getInetAddresses());
            for (InetAddress address : ialist) {
                if (!address.isLoopbackAddress()
                        && InetAddressUtils.isIPv4Address(ipv4 = address.getHostAddress())) {
                    return ipv4;
                }
            }
        }
    } catch (SocketException ex) {
    }

    return null;
}

---

From source file:Main.java

/**
 * Copy the given Enumeration into a String array.
 * The Enumeration must contain String elements only.
 * @param enumeration the Enumeration to copy
 * @return the String array ({@code null} if the passed-in
 * Enumeration was {@code null})// w w  w.  j  a  v  a2s .  c o m
 */
public static String[] toStringArray(Enumeration<String> enumeration) {
    if (enumeration == null) {
        return null;
    }
    List<String> list = Collections.list(enumeration);
    return list.toArray(new String[list.size()]);
}

---

From source file:nfinity.FindPeer.java

public String ScanNetwork() {
    try {/*  ww  w.  j  av  a 2s  . co m*/
        Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface netint : Collections.list(nets)) {
            Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
            for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                if (!inetAddress.getClass().toString().equals("class java.net.Inet6Address")) {
                    if (!inetAddress.isLoopbackAddress()) {
                        try {
                            SubnetUtils utils = new SubnetUtils(inetAddress.getHostAddress() + "/"
                                    + netint.getInterfaceAddresses().get(1).getNetworkPrefixLength());
                            String[] allIps = utils.getInfo().getAllAddresses();
                            return ConnectIP(allIps, inetAddress);
                        } catch (IllegalArgumentException ex) {
                            int prefix = NetworkInterface.getByInetAddress(inetAddress).getInterfaceAddresses()
                                    .get(0).getNetworkPrefixLength();
                            if (!inetAddress.isLoopbackAddress()) {
                                System.out
                                        .println("IP: " + inetAddress.getHostAddress() + " Prefix: " + prefix);
                                SubnetUtils utils = new SubnetUtils(
                                        inetAddress.getHostAddress() + "/" + prefix);
                                String[] allIps = utils.getInfo().getAllAddresses();
                                return ConnectIP(allIps, inetAddress);
                            }
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
        System.out.println("Connection failed " + ex.getMessage());
    }
    return "Peer not found";
}

---

From source file:eu.codebits.plasmas.util.NetworkInterfaces.java

/**
 * @param interfaceName eth0, wlan0 or NULL=use first interface 
 * @param useIPv4//from w ww .  j  av a 2  s.c o m
 * @return address or empty string
 */
@SuppressLint("DefaultLocale")
public static String getIPAddress(String interfaceName, boolean useIPv4) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    String sAddr = addr.getHostAddress().toUpperCase();
                    boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            int delim = sAddr.indexOf('%'); // drop ip6 port suffix
                            return delim < 0 ? sAddr : sAddr.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
    }
    return "";
}

---

From source file:Main.java

public static List<Class<?>> getClassesForPackage(final String iPackageName, final ClassLoader iClassLoader)
        throws ClassNotFoundException {
    // This will hold a list of directories matching the pckgname.
    // There may be more than one if a package is split over multiple jars/paths
    List<Class<?>> classes = new ArrayList<Class<?>>();
    ArrayList<File> directories = new ArrayList<File>();
    try {//  www .  ja v a 2s . co m
        // Ask for all resources for the path
        final String packageUrl = iPackageName.replace('.', '/');
        Enumeration<URL> resources = iClassLoader.getResources(packageUrl);
        if (!resources.hasMoreElements()) {
            resources = iClassLoader.getResources(packageUrl + CLASS_EXTENSION);
            if (resources.hasMoreElements()) {
                throw new IllegalArgumentException(
                        iPackageName + " does not appear to be a valid package but a class");
            }
        } else {
            while (resources.hasMoreElements()) {
                URL res = resources.nextElement();
                if (res.getProtocol().equalsIgnoreCase("jar")) {
                    JarURLConnection conn = (JarURLConnection) res.openConnection();
                    JarFile jar = conn.getJarFile();
                    for (JarEntry e : Collections.list(jar.entries())) {

                        if (e.getName().startsWith(iPackageName.replace('.', '/'))
                                && e.getName().endsWith(CLASS_EXTENSION) && !e.getName().contains("$")) {
                            String className = e.getName().replace("/", ".").substring(0,
                                    e.getName().length() - 6);
                            classes.add(Class.forName(className));
                        }
                    }
                } else
                    directories.add(new File(URLDecoder.decode(res.getPath(), "UTF-8")));
            }
        }
    } catch (NullPointerException x) {
        throw new ClassNotFoundException(
                iPackageName + " does not appear to be " + "a valid package (Null pointer exception)");
    } catch (UnsupportedEncodingException encex) {
        throw new ClassNotFoundException(
                iPackageName + " does not appear to be " + "a valid package (Unsupported encoding)");
    } catch (IOException ioex) {
        throw new ClassNotFoundException(
                "IOException was thrown when trying " + "to get all resources for " + iPackageName);
    }

    // For every directory identified capture all the .class files
    for (File directory : directories) {
        if (directory.exists()) {
            // Get the list of the files contained in the package
            File[] files = directory.listFiles();
            for (File file : files) {
                if (file.isDirectory()) {
                    classes.addAll(findClasses(file, iPackageName));
                } else {
                    String className;
                    if (file.getName().endsWith(CLASS_EXTENSION)) {
                        className = file.getName().substring(0,
                                file.getName().length() - CLASS_EXTENSION.length());
                        classes.add(Class.forName(iPackageName + '.' + className));
                    }
                }
            }
        } else {
            throw new ClassNotFoundException(
                    iPackageName + " (" + directory.getPath() + ") does not appear to be a valid package");
        }
    }
    return classes;
}

---

From source file:psiprobe.tools.logging.log4j.Log4JLoggerAccessor.java

/**
 * Gets the appenders./*from   w  w w  .  ja va  2 s  .  co  m*/
 *
 * @return the appenders
 */
public List<Log4JAppenderAccessor> getAppenders() {
    List<Log4JAppenderAccessor> appenders = new ArrayList<>();
    try {
        for (Object unwrappedAppender : Collections
                .list((Enumeration<Object>) MethodUtils.invokeMethod(getTarget(), "getAllAppenders", null))) {
            Log4JAppenderAccessor appender = wrapAppender(unwrappedAppender);
            if (appender != null) {
                appenders.add(appender);
            }
        }
    } catch (Exception e) {
        logger.error("{}#getAllAppenders() failed", getTarget().getClass().getName(), e);
    }
    return appenders;
}

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