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:org.apache.hadoop.hive.ql.io.rcfile.merge.BlockMergeTask.java

public static void main(String[] args) {

    ArrayList<String> jobConfArgs = new ArrayList<String>();

    String inputPathStr = null;//  w w  w . ja  va 2 s  .c  om
    String outputDir = null;

    try {
        for (int i = 0; i < args.length; i++) {
            if (args[i].equals("-input")) {
                inputPathStr = args[++i];
            } else if (args[i].equals("-jobconf")) {
                jobConfArgs.add(args[++i]);
            } else if (args[i].equals("-outputDir")) {
                outputDir = args[++i];
            }
        }
    } catch (IndexOutOfBoundsException e) {
        System.err.println("Missing argument to option");
        printUsage();
    }

    if (inputPathStr == null || outputDir == null || outputDir.trim().equals("")) {
        printUsage();
    }

    List<String> inputPaths = new ArrayList<String>();
    String[] paths = inputPathStr.split(INPUT_SEPERATOR);
    if (paths == null || paths.length == 0) {
        printUsage();
    }

    FileSystem fs = null;
    JobConf conf = new JobConf(BlockMergeTask.class);
    for (String path : paths) {
        try {
            Path pathObj = new Path(path);
            if (fs == null) {
                fs = FileSystem.get(pathObj.toUri(), conf);
            }
            FileStatus fstatus = fs.getFileStatus(pathObj);
            if (fstatus.isDir()) {
                FileStatus[] fileStatus = fs.listStatus(pathObj);
                for (FileStatus st : fileStatus) {
                    inputPaths.add(st.getPath().toString());
                }
            } else {
                inputPaths.add(fstatus.getPath().toString());
            }
        } catch (IOException e) {
            e.printStackTrace(System.err);
        }
    }

    StringBuilder sb = new StringBuilder("JobConf:\n");

    for (String one : jobConfArgs) {
        int eqIndex = one.indexOf('=');
        if (eqIndex != -1) {
            try {
                String key = one.substring(0, eqIndex);
                String value = URLDecoder.decode(one.substring(eqIndex + 1), "UTF-8");
                conf.set(key, value);
                sb.append(key).append("=").append(value).append("\n");
            } catch (UnsupportedEncodingException e) {
                System.err.println(
                        "Unexpected error " + e.getMessage() + " while encoding " + one.substring(eqIndex + 1));
                System.exit(3);
            }
        }
    }
    HiveConf hiveConf = new HiveConf(conf, BlockMergeTask.class);

    Log LOG = LogFactory.getLog(BlockMergeTask.class.getName());
    boolean isSilent = HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVESESSIONSILENT);
    LogHelper console = new LogHelper(LOG, isSilent);

    // print out the location of the log file for the user so
    // that it's easy to find reason for local mode execution failures
    for (Appender appender : Collections
            .list((Enumeration<Appender>) LogManager.getRootLogger().getAllAppenders())) {
        if (appender instanceof FileAppender) {
            console.printInfo("Execution log at: " + ((FileAppender) appender).getFile());
        }
    }

    // log the list of job conf parameters for reference
    LOG.info(sb.toString());

    MergeWork mergeWork = new MergeWork(inputPaths, outputDir);
    DriverContext driverCxt = new DriverContext();
    BlockMergeTask taskExec = new BlockMergeTask();
    taskExec.initialize(hiveConf, null, driverCxt);
    taskExec.setWork(mergeWork);
    int ret = taskExec.execute(driverCxt);

    if (ret != 0) {
        System.exit(2);
    }

}

---

From source file:io.stallion.monitoring.ExceptionInfo.java

public static ExceptionInfo newForException(Throwable e) {
    ExceptionInfo info = new ExceptionInfo();
    info.thrownAt = utcNow();/*from   w w w  . ja  v a2 s  .c  o m*/
    info.stackTraces = ExceptionUtils.getRootCauseStackTrace(e);
    if (e instanceof InvocationTargetException) {
        e = ((InvocationTargetException) e).getTargetException();
    }
    info.className = e.getClass().getSimpleName();
    info.message = e.getMessage();
    info.requestUrl = request().getRequestUrl();
    info.requestUrlWithQuery = request().getRequestUrlWithQuery();
    info.requestMethod = request().getMethod();
    info.remoteAddr = request().getRemoteAddr();
    info.actualIp = request().getActualIp();
    info.requestHeaders = map();
    for (String name : Collections.list(request().getHeaderNames())) {
        info.requestHeaders.put(name, request().getHeader(name));
    }
    try {
        info.setRequestBody(request().getContent());
    } catch (RuntimeException e2) {
        Log.info("Error logging the exception - could not get the request body: {0}", e2);
    }
    if (!Context.getUser().isAnon()) {
        info.setEmail(Context.getUser().getEmail());
        info.setUsername(Context.getUser().getUsername());
        info.setUserId(Context.getUser().getId());
        info.setValetId(Context.getValetUserId());
    }
    return info;
}

---

From source file:me.j360.trace.server.brave.BraveConfiguration.java

/** This gets the lanIP without trying to lookup its name. */
// http://stackoverflow.com/questions/8765578/get-local-ip-address-without-connecting-to-the-internet
@Bean/*from  w ww  .  j  a  v  a2  s  . c om*/
@Scope
Endpoint local(@Value("${server.port:9411}") int port) {
    int ipv4;
    try {
        ipv4 = Collections.list(NetworkInterface.getNetworkInterfaces()).stream()
                .flatMap(i -> Collections.list(i.getInetAddresses()).stream())
                .filter(ip -> ip instanceof Inet4Address && ip.isSiteLocalAddress())
                .map(InetAddress::getAddress).map(bytes -> new BigInteger(bytes).intValue()).findAny().get();
    } catch (Exception ignored) {
        ipv4 = 127 << 24 | 1;
    }
    return Endpoint.create("zipkin-server", ipv4, port);
}

---

From source file:psiprobe.controllers.jsp.RecompileJspController.java

@Override
protected ModelAndView handleContext(String contextName, Context context, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    HttpSession session = request.getSession(false);
    Summary summary = (Summary) session.getAttribute(DisplayJspController.SUMMARY_ATTRIBUTE);

    if (request.getMethod().equalsIgnoreCase("post") && summary != null) {
        List<String> names = new ArrayList<>();
        for (String name : Collections.list(request.getParameterNames())) {
            if ("on".equals(request.getParameter(name))) {
                names.add(name);//from ww  w  .j  av a  2s .  c  om
            }
        }
        getContainerWrapper().getTomcatContainer().recompileJsps(context, summary, names);
        session.setAttribute(DisplayJspController.SUMMARY_ATTRIBUTE, summary);
    } else if (summary != null && contextName.equals(summary.getName())) {
        String name = ServletRequestUtils.getStringParameter(request, "source", null);
        if (name != null) {
            List<String> names = new ArrayList<>();
            names.add(name);
            getContainerWrapper().getTomcatContainer().recompileJsps(context, summary, names);
            session.setAttribute(DisplayJspController.SUMMARY_ATTRIBUTE, summary);
        } else {
            logger.error("source is not passed, nothing to do");
        }
    }
    return new ModelAndView(new RedirectView(
            request.getContextPath() + ServletRequestUtils.getStringParameter(request, "view", getViewName())
                    + "?" + request.getQueryString()));
}

---

From source file:org.nuxeo.runtime.jtajca.NuxeoConnectionManagerFactory.java

public static NuxeoConnectionManagerConfiguration getConfig(Reference ref) {
    NuxeoConnectionManagerConfiguration config = new NuxeoConnectionManagerConfiguration();
    IllegalArgumentException errors = new IllegalArgumentException("wrong naming config");
    for (RefAddr addr : Collections.list(ref.getAll())) {
        String name = addr.getType();
        String value = (String) addr.getContent();
        try {//w  ww.j  av  a2 s. co  m
            BeanUtils.setProperty(config, name, value);
        } catch (ReflectiveOperationException cause) {
            errors.addSuppressed(cause);
        }
    }
    if (errors.getSuppressed().length > 0) {
        throw errors;
    }
    return config;
}

---

From source file:eu.eubrazilcc.lvl.core.util.NetworkingUtils.java

/**
 * Gets the first public IP address of the host. If no public address are found, one of the private
 * IPs are randomly selected. Otherwise, it returns {@code localhost}.
 * @return the first public IP address of the host.
 *//*from w ww. ja  va 2  s  .c  om*/
public static final String getInet4Address() {
    String inet4Address = null;
    final List<String> localAddresses = new ArrayList<String>();
    try {
        final Enumeration<NetworkInterface> networks = NetworkInterface.getNetworkInterfaces();
        if (networks != null) {
            final List<NetworkInterface> ifs = Collections.list(networks);
            for (int i = 0; i < ifs.size() && inet4Address == null; i++) {
                final Enumeration<InetAddress> inetAddresses = ifs.get(i).getInetAddresses();
                if (inetAddresses != null) {
                    final List<InetAddress> addresses = Collections.list(inetAddresses);
                    for (int j = 0; j < addresses.size() && inet4Address == null; j++) {
                        final InetAddress address = addresses.get(j);
                        if (address instanceof Inet4Address && !address.isAnyLocalAddress()
                                && !address.isLinkLocalAddress() && !address.isLoopbackAddress()
                                && StringUtils.isNotBlank(address.getHostAddress())) {
                            final String hostAddress = address.getHostAddress().trim();
                            if (!hostAddress.startsWith("10.") && !hostAddress.startsWith("172.16.")
                                    && !hostAddress.startsWith("192.168.")) {
                                inet4Address = hostAddress;
                            } else {
                                localAddresses.add(hostAddress);
                            }
                            LOGGER.trace(
                                    "IP found - Name: " + address.getHostName() + ", Addr: " + hostAddress);
                        }
                    }
                }
            }
        }
    } catch (Exception e) {
        LOGGER.warn("Failed to discover public IP address for this host", e);
    }
    return (StringUtils.isNotBlank(inet4Address) ? inet4Address
            : (!localAddresses.isEmpty() ? localAddresses.get(new Random().nextInt(localAddresses.size()))
                    : "localhost")).trim();
}

---

From source file:exercise.servletfeature.ServletFeatureResource.java

@GET
@Path("demo1")
@Produces(MediaType.APPLICATION_JSON)//from   w w w  .  j ava 2 s  .  com
public Response getServletContextAndConfigs() throws JsonProcessingException {
    Map<String, String> dump = new HashMap<>();

    dump.put("servlet-name", servletConfig.getServletName());
    /*
     * Enumeration to for: http://d.hatena.ne.jp/chiheisen/20110410/1302447986
     * http://stackoverflow.com/questions/7160568
     * /iterating-through-enumeration-of-hastable-keys-throws-nosuchelementexception-err
     */
    for (String pname : Collections.list(servletConfig.getInitParameterNames())) {
        String k = "servlet-init-param-" + pname;
        dump.put(k, servletConfig.getInitParameter(pname));
    }

    dump.put("server-info", servletContext.getServerInfo());
    StringBuilder sb = new StringBuilder();
    sb.append(servletContext.getMajorVersion());
    sb.append(".");
    sb.append(servletContext.getMinorVersion());
    dump.put("version", sb.toString());
    dump.put("context-path", servletContext.getContextPath());

    ObjectMapper objectMapper = new ObjectMapper();
    String jsonout = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(dump);
    return Response.status(Status.OK).type(MediaType.APPLICATION_JSON_TYPE.withCharset("UTF-8")).entity(jsonout)
            .encoding("UTF-8").build();
}

---

From source file:org.nuxeo.runtime.jtajca.NuxeoTransactionManagerFactory.java

@Override
public Object getObjectInstance(Object obj, Name objName, Context nameCtx, Hashtable<?, ?> env) {
    Reference ref = (Reference) obj;
    if (!TransactionManager.class.getName().equals(ref.getClassName())) {
        return null;
    }/*from  w w w . ja v  a2 s.co m*/
    if (NuxeoContainer.tm != null) {
        return NuxeoContainer.tm;
    }

    // initialize
    TransactionManagerConfiguration config = new TransactionManagerConfiguration();
    for (RefAddr addr : Collections.list(ref.getAll())) {
        String name = addr.getType();
        String value = (String) addr.getContent();
        try {
            BeanUtils.setProperty(config, name, value);
        } catch (ReflectiveOperationException e) {
            log.error(String.format("NuxeoTransactionManagerFactory cannot set %s = %s", name, value));
        }
    }
    return NuxeoContainer.initTransactionManager(config);
}

---

From source file:com.rest4j.impl.ApiRequestServletImpl.java

@Override
public Iterable<String> paramNames() {
    return Collections.list(request.getParameterNames());
}

---

From source file:org.vosao.i18n.VosaoResourceBundle.java

@Override
public Enumeration<String> getKeys() {
    List<String> result = new ArrayList<String>();
    for (ResourceBundle bundle : getResourceBundles()) {
        result.addAll(Collections.list(bundle.getKeys()));
    }//from  w ww  .  j a v a2 s  .  com
    return Collections.enumeration(result);
}

---

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