Example usage for java.util List isEmpty

List of usage examples for java.util List isEmpty

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Introduction

In this page you can find the example usage for java.util List isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:hrytsenko.gscripts.io.CsvFiles.java

/**
 * Save records into file.//from w ww.  j  a  va  2 s .  c  o  m
 * 
 * <p>
 * If file already exists, then it will be overridden.
 * 
 * @param records
 *            the list of records to save.
 * @param args
 *            the named arguments.
 * 
 * @throws IOException
 *             if file could not be saved.
 */
public static void saveCsv(List<Map<String, ?>> records, Map<String, ?> args) {
    if (records.isEmpty()) {
        LOGGER.info("No records to save.");
        return;
    }

    Path path = NamedArgs.findPath(args);
    LOGGER.info("Save {}.", path.getFileName());

    CsvSchema.Builder csvSchema = schemaFrom(args).setUseHeader(true);
    Records.columns(records).forEach(csvSchema::addColumn);

    try (Writer writer = Files.newBufferedWriter(path, charsetFrom(args))) {
        CsvMapper csvMapper = new CsvMapper();
        csvMapper.configure(CsvGenerator.Feature.ALWAYS_QUOTE_STRINGS, true);

        csvMapper.writer().with(csvSchema.build()).writeValue(writer, Records.normalize(records));
    } catch (IOException exception) {
        throw new AppException(String.format("Could not save file %s.", path.getFileName()), exception);
    }
}

From source file:com.jaxio.celerio.configuration.Pattern.java

public static boolean hasPattern(List<Pattern> patterns, String value) {
    // no definition : everything is ok
    if (patterns.isEmpty()) {
        return true;
    }/*w w  w .  j a  va2  s  .  c  o m*/

    for (Pattern pattern : patterns) {
        if (pattern.match(value)) {
            return pattern.isIncluded();
        }
    }

    if (hasOnlyExcludes(patterns)) {
        return true;
    } else if (hasOnlyIncludes(patterns)) {
        return false;
    } else {
        return false;
    }
}

From source file:com.notonthehighstreet.ratel.internal.model.Error.java

private static List<Backtrace> unwrapStackTrace(final Throwable e) {
    // As Honeybadger only supports a single error, we need to massage the wrapped exceptions into a single stack trace
    final List<Backtrace> backtraces = new ArrayList<Backtrace>();

    Throwable cause = e;/*from  ww  w . j  a va 2  s .c om*/

    while (cause != null) {
        if (!backtraces.isEmpty()) {
            backtraces.add(Backtrace.markerBacktrace(cause));
        }

        for (final StackTraceElement element : e.getStackTrace()) {
            backtraces.add(Backtrace.fromStackTrace(element));
        }

        cause = cause.getCause();
    }

    return backtraces;
}

From source file:de.micromata.genome.gwiki.page.impl.i18n.GWikiMessageTag.java

@SuppressWarnings("unchecked")
public static void renderPatchDom(PageContext pageContext) throws JspException {
    Object l = pageContext.getAttribute(GWIKI_MESSAGE_ATTR);
    if ((l instanceof List) == false) {
        return;/*from w w  w  .j a  v  a 2  s .  c  o  m*/
    }
    List<GWikiMessageTag> tags = (ArrayList<GWikiMessageTag>) l;
    if (tags.isEmpty() == true) {
        return;
    }
    StringBuilder sb = new StringBuilder();
    sb.append("<script type=\"text/javascript\">gwikiPatchI18NElements([");
    boolean first = true;
    for (GWikiMessageTag tag : tags) {
        if (first == false) {
            sb.append(", ");
        } else {
            first = false;
        }
        sb.append("{ id: '" + tag.getTagId() + "', i18nKey: '" + tag.getKeyAttrValue() + "'}");
    }
    sb.append("]);</script>");

    try {
        pageContext.getOut().write(sb.toString());
    } catch (IOException e) {
        throw new JspException(e);
    }

}

From source file:Main.java

private static Integer indexOfClosestZoom(Camera.Parameters parameters, double targetZoomRatio) {
    List<Integer> ratios = parameters.getZoomRatios();
    //        Log.i(TAG, "Zoom ratios: " + ratios);
    int maxZoom = parameters.getMaxZoom();
    if (ratios == null || ratios.isEmpty() || ratios.size() != maxZoom + 1) {
        //            Log.w(TAG, "Invalid zoom ratios!");
        return null;
    }// w w  w.j  ava2s.c  o m
    double target100 = 100.0 * targetZoomRatio;
    double smallestDiff = Double.POSITIVE_INFINITY;
    int closestIndex = 0;
    for (int i = 0; i < ratios.size(); i++) {
        double diff = Math.abs(ratios.get(i) - target100);
        if (diff < smallestDiff) {
            smallestDiff = diff;
            closestIndex = i;
        }
    }
    //        Log.i(TAG, "Chose zoom ratio of " + (ratios.get(closestIndex) / 100.0));
    return closestIndex;
}

From source file:com.abombrecords.amt_unlocker.AMT_Unlocker.java

public static boolean UnlockDoor(String Username, String Password, String DoorPIN) throws Exception {
    boolean bSuccess = false;

    //Log.d(LogTag, "Login");   
    DefaultHttpClient httpclient = new DefaultHttpClient();

    HttpPost httpost = new HttpPost("http://acemonstertoys.org/node?destination=node");

    List<NameValuePair> nvps = new ArrayList<NameValuePair>();
    nvps.add(new BasicNameValuePair("op", "Log in"));
    nvps.add(new BasicNameValuePair("name", Username));
    nvps.add(new BasicNameValuePair("pass", Password));
    nvps.add(new BasicNameValuePair("openid.return_to",
            "http://acemonstertoys.org/openid/authenticate?destination=node"));
    nvps.add(new BasicNameValuePair("form_id", "user_login_block"));
    nvps.add(new BasicNameValuePair("form_build_id", "form-4d6478bc67a79eda5e36c01499ba4c88"));

    httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));

    HttpResponse response = httpclient.execute(httpost);
    HttpEntity entity = response.getEntity();

    //Log.d(LogTag, "Login form get: " + response.getStatusLine());
    if (entity != null) {
        entity.consumeContent();/*ww  w. j a  v  a  2s .com*/
    }

    //Log.d(LogTag, "Post Login cookies:");
    // look for drupal_uid and fail out if it isn't there
    List<Cookie> cookies = httpclient.getCookieStore().getCookies();
    if (cookies.isEmpty()) {
        //Log.d(LogTag, "None");
    } else {
        for (int i = 0; i < cookies.size(); i++) {
            //Log.d(LogTag, "- " + cookies.get(i).toString());

            if (cookies.get(i).getName().equals("drupal_uid")) {
                bSuccess = true;
            }
        }
    }

    if (bSuccess) {
        HttpPost httpost2 = new HttpPost("http://acemonstertoys.org/membership");

        List<NameValuePair> nvps2 = new ArrayList<NameValuePair>();
        nvps2.add(new BasicNameValuePair("doorcode", DoorPIN));
        nvps2.add(new BasicNameValuePair("forceit", "Open Door"));

        httpost2.setEntity(new UrlEncodedFormEntity(nvps2, HTTP.UTF_8));

        response = httpclient.execute(httpost2);
        entity = response.getEntity();

        //Log.d(LogTag, "Unlock form get: " + response.getStatusLine());
        if (entity != null) {
            entity.consumeContent();
        }
    }

    httpclient.getConnectionManager().shutdown();

    return bSuccess;
}

From source file:fredboat.util.DiscordUtil.java

public static int getHighestRolePosition(Member member) {
    List<Role> roles = member.getRoles();

    if (roles.isEmpty())
        return -1;

    Role top = roles.get(0);/*w w w.java 2s  .c  o m*/

    for (Role r : roles) {
        if (r.getPosition() > top.getPosition()) {
            top = r;
        }
    }

    return top.getPosition();
}

From source file:fr.paris.lutece.plugins.directory.utils.UrlUtils.java

/**
 * Get the parameter map from a given url
 * @param strUrl the url//from   w w  w.j a v  a2  s  .  co m
 * @return the parameter map
 */
public static Map<String, List<String>> getMapParametersFromUrl(String strUrl) {
    Map<String, List<String>> mapParameters = new HashMap<String, List<String>>();

    if (StringUtils.isNotBlank(strUrl) && (strUrl.indexOf(INTERROGATION_MARK) > 0)) {
        String strUrlParameters = strUrl.substring(strUrl.indexOf(INTERROGATION_MARK) + 1);
        String[] listParameters = strUrlParameters.split(AMPERSAND);

        if ((listParameters != null) && (listParameters.length > 0)) {
            for (String strParameter : listParameters) {
                String[] parameter = strParameter.split(EQUAL);

                if ((parameter != null) && (parameter.length == 2)) {
                    List<String> listParameterValues = mapParameters.get(parameter[0]);

                    if ((listParameterValues != null) && !listParameterValues.isEmpty()) {
                        listParameterValues.add(parameter[1]);
                    } else {
                        listParameterValues = new ArrayList<String>();
                        listParameterValues.add(parameter[1]);
                        mapParameters.put(parameter[0], listParameterValues);
                    }
                }
            }
        }
    }

    return mapParameters;
}

From source file:library.entry.Main.java

private static void viewbooks(List<Book> books) {
    if (books.isEmpty()) {
        ConsoleHelper.printMessage("");
        ConsoleHelper.printMessage("==== No books available ====");
        return;/* w  ww .  j  a va 2s .c o m*/
    }
    while (true) {
        ConsoleHelper.printMessage("");
        ConsoleHelper.printMessage("To view details enter the book ID, to return press <Enter>");
        ConsoleHelper.printMessage("");
        books.stream().forEach(o -> ConsoleHelper.printBookSelection(o.getId(), o.getTitle()));
        ConsoleHelper.printMessage("");
        ConsoleHelper.printPrompt("Book ID");
        Integer selectedId = ConsoleHelper.getInt(true);
        if (selectedId == null) {
            break;
        } else {
            books.stream().filter(b -> b.getId() == selectedId).forEach(b -> {
                ConsoleHelper.printMessage(String.format("ID: %s", "" + b.getId()), 1);
                ConsoleHelper.printMessage(String.format("Title: %s", b.getTitle()), 1);
                ConsoleHelper.printMessage(String.format("Author: %s", b.getAuthor()), 1);
                ConsoleHelper.printMessage(String.format("Description: %s", b.getDescription()), 1);
            });
        }
    }
}

From source file:net.meltdowntech.steamstats.SteamUser.java

public static SteamUser fetchUser(Long id) {
    //TODO Write optimized version of this
    List<SteamUser> user = fetchUsers(Arrays.asList(new Long[] { id }));
    if (!user.isEmpty())
        return user.get(0);
    return new SteamUser();
}