Example usage for java.util List isEmpty

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:Main.java

private static void testTransfer() {
    List src, targ;

    src = new ArrayList();
    targ = new ArrayList();

    transfer(src, targ, 10);//from  ww w  .  j a va  2 s  .  c o m
    assert src.isEmpty() && targ.isEmpty();

    src.add("1");
    transfer(src, targ, 0);
    assert src.size() == 1 && targ.isEmpty();
    transfer(src, targ, 1);
    assert src.isEmpty() && targ.size() == 1;

    targ.clear();
    src.add("1");
    transfer(src, targ, 10);
    assert src.isEmpty() && targ.size() == 1;

}

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From source file:ee.ria.xroad.proxy.serverproxy.CustomSSLSocketFactory.java

private static void checkServerTrusted(ServiceId service, X509Certificate cert) throws Exception {
    if (!ServerConf.isSslAuthentication(service)) {
        return;// w w  w.j av a2  s.c  o m
    }

    log.trace("Verifying service TLS certificate...");

    ClientId client = service.getClientId();
    List<X509Certificate> isCerts = ServerConf.getIsCerts(client);
    if (isCerts.isEmpty()) {
        throw new Exception(String.format("Client '%s' has no IS certificates", client));
    }

    if (isCerts.contains(cert)) {
        log.trace("Found matching IS certificate");
        return;
    }

    log.error("Could not find matching IS certificate for client '{}'", client);
    throw new Exception("Server certificate is not trusted");
}

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From source file:com.mrmq.uyoutube.data.UpdateVideo.java

/**
 * Add a keyword tag to a video that the user specifies. Use OAuth 2.0 to
 * authorize the API request./*from ww w.  j  a v  a  2  s .c  om*/
 */
public static Video updateVideo(YouTube youtube, Video newVideo) {
    Video videoResponse = null;
    try {
        Preconditions.checkNotNull(newVideo, "Video can not be null");
        Preconditions.checkNotNull(newVideo.getSnippet(), "Video snippet can not be null");

        // Call the YouTube Data API's youtube.videos.list method to
        // retrieve the resource that represents the specified video.
        YouTube.Videos.List listVideosRequest = youtube.videos().list("snippet").setId(newVideo.getId());
        VideoListResponse listResponse = listVideosRequest.execute();

        // Since the API request specified a unique video ID, the API
        // response should return exactly one video. If the response does
        // not contain a video, then the specified video ID was not found.
        List<Video> videoList = listResponse.getItems();
        if (videoList.isEmpty()) {
            logger.error("Can't find a video with ID: " + newVideo.getId());
            return null;
        }

        // Extract the snippet from the video resource.
        Video video = videoList.get(0);
        VideoSnippet snippet = video.getSnippet();

        // Preserve any tags already associated with the video. If the
        // video does not have any tags, create a new array. Append the
        // provided tag to the list of tags associated with the video.
        if (newVideo.getSnippet().getTags() != null)
            snippet.setTags(newVideo.getSnippet().getTags());
        if (!StringUtils.isEmpty(newVideo.getSnippet().getTitle()))
            snippet.setTitle(newVideo.getSnippet().getTitle());
        if (!StringUtils.isEmpty(newVideo.getSnippet().getDescription()))
            snippet.setDescription(newVideo.getSnippet().getDescription());

        // Update the video resource by calling the videos.update() method.
        YouTube.Videos.Update updateVideosRequest = youtube.videos().update("snippet", video);
        videoResponse = updateVideosRequest.execute();

        // Print information from the updated resource.
        logger.info("\n================== Returned Video ==================\n");
        logger.info("  - Title: " + videoResponse.getSnippet().getTitle());
        logger.info("  - Tags: " + videoResponse.getSnippet().getTags());
        return videoResponse;
    } catch (GoogleJsonResponseException e) {
        logger.error("GoogleJsonResponseException code: " + e.getDetails().getCode() + " : "
                + e.getDetails().getMessage());
    } catch (IOException e) {
        logger.error("IOException: " + e.getMessage(), e);
    } catch (Throwable t) {
        logger.error("Throwable: " + t.getMessage(), t);
    }

    return videoResponse;
}

---

From source file:com.projecttango.examples.java.floorplan.PlanBuilder.java

/**
 * Converts wall measurements to string.
 *
 * @param wallMeasurementList//from w  ww .j a va  2 s .  c o m
 * @return String
 */
public static String toString(List<WallMeasurement> wallMeasurementList) {
    List<String> planPoints = new ArrayList<String>();
    if (!wallMeasurementList.isEmpty()) {
        for (WallMeasurement wallMeasurement : wallMeasurementList) {
            float[] openGlWall = wallMeasurement.getPlaneTransform();
            float[] measurementPoint = new float[] { openGlWall[12], openGlWall[13], openGlWall[14] };
            planPoints.add(Arrays.toString(measurementPoint));
        }
    }
    return planPoints.toString();
}

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From source file:com.textocat.textokit.morph.opencorpora.OpencorporaMorphDictionaryAPI.java

public static String locateDictionaryClassPath() {
    List<Manifest> jarManifests = ManifestUtils.searchByAttributeKey(ME_OPENCORPORA_DICTIONARY_VERSION);
    if (jarManifests.isEmpty())
        throw new IllegalStateException("Can't find an OpenCorpora dictionary in classpath");
    if (jarManifests.size() > 1)
        throw new UnsupportedOperationException("Found several OpenCorpora dictionaries in classpath");
    Manifest ocJarManifest = jarManifests.get(0);
    String version = ocJarManifest.getMainAttributes().getValue(ME_OPENCORPORA_DICTIONARY_VERSION);
    String revision = ocJarManifest.getMainAttributes().getValue(ME_OPENCORPORA_DICTIONARY_REVISION);
    String variant = ocJarManifest.getMainAttributes().getValue(ME_OPENCORPORA_DICTIONARY_VARIANT);
    return String.format(OpencorporaMorphDictionaryAPI.FILENAME_PATTERN_OPENCORPORA_SERIALIZED_DICT, version,
            revision, variant);/*from   w ww .jav a  2 s  .co m*/
}

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From source file:Main.java

private static String[] setPlacesToWatch(String placeWatch) {

    String[] places = { "" };
    if (placeWatch != null && !placeWatch.equals("")) {
        StringTokenizer tok = new StringTokenizer(placeWatch, ",");
        List<String> l = new ArrayList<String>();
        while (tok.hasMoreElements()) {
            l.add(tok.nextToken().toString());
        }/*from  w w w .  j a v  a  2  s .  co  m*/
        if (!l.isEmpty()) {
            //Object[] o = l.toArray();
            places = new String[l.size()];// (String[])o;
            int idx = 0;
            for (String s : l) {
                places[idx++] = s;
            }
        }

    }
    return places;
}

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From source file:fr.paris.lutece.plugins.genericattributes.util.GenericAttributesUtils.java

/**
 * Return the field which title is specified in parameter
 * @param strTitle the title/*from   ww  w  .j a v  a  2 s.c o m*/
 * @param listFields the list of fields
 * @return the field which title is specified in parameter
 */
public static Field findFieldByTitleInTheList(String strTitle, List<Field> listFields) {
    if ((listFields == null) || listFields.isEmpty()) {
        return null;
    }

    for (Field field : listFields) {
        if (StringUtils.isNotBlank(strTitle)) {
            if (StringUtils.equals(StringUtils.trim(strTitle), StringUtils.trim(field.getTitle()))) {
                return field;
            }
        } else if (StringUtils.isBlank(field.getTitle())) {
            return field;
        }
    }

    return null;
}

---

From source file:com.openkm.util.DocumentUtils.java

/**
 * Text spell checker/* ww w  .j av a2s . c om*/
 */
public static String spellChecker(String text) throws IOException {
    log.debug("spellChecker({})", text);
    StringBuilder sb = new StringBuilder();

    if (Config.SYSTEM_OPENOFFICE_DICTIONARY.equals("")) {
        log.warn("OpenOffice dictionary not configured");
        sb.append(text);
    } else {
        log.info("Using OpenOffice dictionary: {}", Config.SYSTEM_OPENOFFICE_DICTIONARY);
        ZipFile zf = new ZipFile(Config.SYSTEM_OPENOFFICE_DICTIONARY);
        OpenOfficeSpellDictionary oosd = new OpenOfficeSpellDictionary(zf);
        SpellChecker sc = new SpellChecker(oosd);
        sc.setCaseSensitive(false);
        StringTokenizer st = new StringTokenizer(text);

        while (st.hasMoreTokens()) {
            String w = st.nextToken();
            List<String> s = sc.getDictionary().getSuggestions(w);

            if (s.isEmpty()) {
                sb.append(w).append(" ");
            } else {
                sb.append(s.get(0)).append(" ");
            }
        }

        zf.close();
    }

    log.debug("spellChecker: {}", sb.toString());
    return sb.toString();
}

---

From source file:Main.java

/** Builds a parameter string based on the given parameters, separated by given delimiter, and optionally quoted values */
public static String buildParameterString(List<Pair<String, String>> parameters, String delimiter,
        boolean quote) throws UnsupportedEncodingException {

    if (parameters == null || parameters.isEmpty())
        return "";
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < parameters.size(); i++) {
        String key = parameters.get(i).first;
        String value = parameters.get(i).second;
        // skip 'null' values
        if (value == null)
            continue;
        String a = URLEncoder.encode(key, "UTF-8");
        String b = URLEncoder.encode(value, "UTF-8");
        builder.append(a + "="); // append key + "="
        if (quote)
            builder.append("\""); // optionally append quote
        builder.append(b); // append value
        if (quote)
            builder.append("\""); // optionally append quote
        if (i != parameters.size() - 1)
            builder.append(delimiter);/*from www  .  j ava  2 s  . com*/
    }
    return builder.toString();
}

---

From source file:com.fluke.application.IEODReader.java

static void processFolder(List<File> folders) throws IOException {
    List<File> newFolders = new ArrayList<>();
    for (File file : folders) {
        processChildren(file.listFiles(), newFolders);
    }/*from ww  w . j  a va 2s  .c  o m*/
    if (!newFolders.isEmpty()) {
        processFolder(newFolders);
    }
}

---

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