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

@SuppressLint("DefaultLocale")
public static String getLocalHostAddress() {
    boolean useIPv4 = true;

    try {/*from  ww  w.jav a  2  s  .  com*/
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            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 (Exception ex) {
    } // for now eat exceptions
    return "";
}

From source file:Main.java

public static String getLocalIpAddress(Context context) {
    try {/*from   ww  w .  j a  v a 2 s  .  c  o  m*/
        String ipv4;

        List<NetworkInterface> nilist = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface ni : nilist) {
            if (ni.getName().toLowerCase().contains("usbnet"))
                continue;
            List<InetAddress> ialist = Collections.list(ni.getInetAddresses());
            for (InetAddress address : ialist) {
                if (!address.isLoopbackAddress()
                        && InetAddressUtils.isIPv4Address(ipv4 = address.getHostAddress())) {
                    return ipv4;
                }
            }

        }

    } catch (SocketException ex) {
        Log.d("socket_err", ex.toString());
    }
    return null;
}

From source file:Main.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  w  w  . j  a v  a2 s.  c  o m*/
 */
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:Main.java

/**
 * Get IP address from first non-localhost interface
 *
 * @param useIPv4 true=return ipv4, false=return ipv6
 * @return address or empty string/*from   w w  w. j  a va 2s.com*/
 */
public static String getIPAddress(boolean useIPv4) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    String sAddr = addr.getHostAddress();
                    //boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    boolean isIPv4 = sAddr.indexOf(':') < 0;

                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            int delim = sAddr.indexOf('%'); // drop ip6 zone suffix
                            return delim < 0 ? sAddr.toUpperCase() : sAddr.substring(0, delim).toUpperCase();
                        }
                    }
                }
            }
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
}

From source file:Main.java

/**
 * Get IP address from first non-localhost interface
 * @param ipv4  true=return ipv4, false=return ipv6
 * @return  address or empty string//www  . j ava2 s .c  o  m
 */
@SuppressLint("DefaultLocale")
public static String getIPAddress() {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            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 (isIPv4)
                        return sAddr;
                }
            }
        }
    } catch (Exception ex) {
    }
    return "";
}

From source file:Main.java

/**
 * Get IP address from first non-localhost interface
 * @param useIPv4  true=return ipv4, false=return ipv6
 * @return  address or empty string/*w  w w. j  a va 2 s  .c o  m*/
 */
public static String getIPAddress(boolean useIPv4) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            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 (Exception ex) {
    } // for now eat exceptions
    return "";
}

From source file:Main.java

/**
 * Convenience method for retrieving the UIDefault for a single property of
 * a particular class./*  w  ww .j  a v  a2 s  . c o m*/
 *
 * @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;
}

From source file:Main.java

/**
 * Method by Adrian: [//from   www  . j av  a2s .  c  o  m
 * <a href="http://stackoverflow.com/a/15704264/5620200">StackOverflow</a> ]
 * & Mike: [ <a href=
 * "http://stackoverflow.com/questions/1542170/arranging-nodes-in-a-jtree">
 * StackOverflow</a> ]
 * 
 * @param node
 * @return
 */
@SuppressWarnings("unchecked")
public static DefaultMutableTreeNode sort(DefaultMutableTreeNode node) {
    List<DefaultMutableTreeNode> children = Collections.list(node.children());
    List<String> orgCnames = new ArrayList<String>();
    List<String> cNames = new ArrayList<String>();
    DefaultMutableTreeNode temParent = new DefaultMutableTreeNode();
    for (DefaultMutableTreeNode child : children) {
        DefaultMutableTreeNode ch = (DefaultMutableTreeNode) child;
        temParent.insert(ch, 0);
        String uppser = ch.toString().toUpperCase();
        // Not dependent on package name, so if duplicates are found
        // they will later on be confused. Adding this is of
        // very little consequence and fixes the issue.
        if (cNames.contains(uppser)) {
            uppser += "$COPY";
        }
        cNames.add(uppser);
        orgCnames.add(uppser);
        if (!child.isLeaf()) {
            sort(child);
        }
    }
    Collections.sort(cNames);
    for (String name : cNames) {
        int indx = orgCnames.indexOf(name);
        int insertIndex = node.getChildCount();
        node.insert(children.get(indx), insertIndex);
    }
    // Fixing folder placement
    for (int i = 0; i < node.getChildCount() - 1; i++) {
        DefaultMutableTreeNode child = (DefaultMutableTreeNode) node.getChildAt(i);
        for (int j = i + 1; j <= node.getChildCount() - 1; j++) {
            DefaultMutableTreeNode prevNode = (DefaultMutableTreeNode) node.getChildAt(j);
            if (!prevNode.isLeaf() && child.isLeaf()) {
                node.insert(child, j);
                node.insert(prevNode, i);
            }
        }
    }
    return node;
}

From source file:Main.java

private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
    System.out.printf("Display name: %s%n", netint.getDisplayName());
    System.out.printf("Name: %s%n", netint.getName());
    Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
    for (InetAddress inetAddress : Collections.list(inetAddresses)) {
        System.out.printf("InetAddress: %s%n", inetAddress);
    }//from   w ww.  j a  v  a2s .co  m
    System.out.printf("%n");
}

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

/**
 *
 * @param interfaceName// w ww . ja va 2s  . c o m
 * @return
 */
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)
                continue;//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 (SocketException ex) {
    }
    return "";
}