Example usage for java.util Map isEmpty

List of usage examples for java.util Map isEmpty

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Introduction

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

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this map contains no key-value mappings.

Usage

From source file:com.greenline.hrs.admin.cache.redis.util.RedisInfoParser.java

/**
 * RedisInfoMapT?RedisInfoMapRedis?/*from w  w  w. j a  v  a2 s. c o m*/
 *
 * @param redisInfoMap Map
 * @return instanceTypeinfomapnullinfoMap?instancenullRedisServerInfoPO
 */
public static List<RedisKeyspaceInfo> parserToKeySpaceInfo(Map<String, String> redisInfoMap) {
    if (redisInfoMap == null || redisInfoMap.isEmpty()) {
        return Collections.EMPTY_LIST;
    }
    int dbSize = 16;
    String dbSizeStr = redisInfoMap.get(RedisCommonConst.DB_SIZE);
    if (StringUtils.isNumeric(dbSizeStr)) {
        dbSize = Integer.valueOf(dbSizeStr);
    }
    List<RedisKeyspaceInfo> result = new ArrayList<RedisKeyspaceInfo>(dbSize * 2);
    for (int i = 0; i < dbSize; i++) {
        RedisKeyspaceInfo keyspaceInfo = new RedisKeyspaceInfo();
        // TODO createTime??
        keyspaceInfo.setCreateTime(DateTime.now().toDate());
        keyspaceInfo.setDbIndex(i);
        keyspaceInfo.setKeys(0L);
        keyspaceInfo.setExpires(0L);
        String keyspaceStr = redisInfoMap.get("db" + i);
        if (keyspaceStr != null) {
            String[] properties = StringUtils.split(keyspaceStr, KS_PROPERTY_DELIMITER);
            if (properties.length >= KS_PROPERTY_MIN_SIZE) {
                keyspaceInfo.setKeys(Long.valueOf(properties[1]));
                keyspaceInfo.setExpires(Long.valueOf(properties[3]));
                result.add(keyspaceInfo);
            }
        }
    }
    return result;
}

From source file:com.microsoft.gittf.core.util.RepositoryUtil.java

public static boolean isEmptyRepository(final Repository repository) throws IOException {
    final RefDatabase refsDB = repository.getRefDatabase();
    final Map<String, Ref> refs = refsDB.getRefs(RefDatabase.ALL);
    return refs.isEmpty();
}

From source file:com.ms.commons.cookie.parser.CookieParser.java

/**
 * CookieName???Cookievalue. ?CookieNameCookieKey
 * //ww  w  . j ava 2  s  . c om
 * @return ?null
 */
static CookieNameHelper paserCookieValue(CookieNameConfig cookieNameConfig, String cookieValue) {
    String value = StringUtils.trimToNull(cookieValue);
    if (value == null || StringUtils.equalsIgnoreCase("null", value))
        return null;

    // ?
    if (cookieNameConfig.isEncrypt()) {
        value = CookieUtils.decrypt(value);
    }
    CookieNameHelper cookieNameHelper = new CookieNameHelper(cookieNameConfig.getCookieName(),
            cookieNameConfig);
    // ??Key??,?
    if (cookieNameConfig.isSimpleValue()) {
        cookieNameHelper.parserValue(value);
    } else {
        // ??Value??
        Map<CookieKeyEnum, String> kv = CookieUtils.strToKVMap(value, cookieNameConfig);
        // CookieNameHelper cookieNameHelper = null;
        if (kv != null && !kv.isEmpty())
            cookieNameHelper.parserAllValues(kv);
    }
    return cookieNameHelper;
}

From source file:crow.util.JsonUtil.java

private static JSONObject toJSONObject(Map<String, Object> map) throws JSONException {
    JSONObject jsonOb = new JSONObject();
    if ((map == null) || (map.isEmpty()))
        return jsonOb;
    Iterator<String> iter = map.keySet().iterator();
    while (iter.hasNext()) {
        String key = iter.next();
        Object value = map.get(key);
        if ((value instanceof String) || (value instanceof Integer) || (value instanceof Double)
                || (value instanceof Long) || (value instanceof Float)) {
            jsonOb.put(key, value);/*  w ww. ja va  2s.  co m*/
            continue;
        }
        if ((value instanceof Map<?, ?>)) {
            try {
                @SuppressWarnings("unchecked")
                Map<String, Object> valueMap = (Map<String, Object>) value;
                jsonOb.put(key, toJSONObject(valueMap));
            } catch (ClassCastException e) {
                Log.w(TAG, "Unknown map type in json serialization: ", e);
            }
            continue;
        }
        if ((value instanceof Set<?>)) {
            try {
                @SuppressWarnings("unchecked")
                Set<Object> valueSet = (Set<Object>) value;
                jsonOb.put(key, toJSONObject(valueSet));
            } catch (ClassCastException e) {
                Log.w(TAG, "Unknown map type in json serialization: ", e);
            }
            continue;
        }
        Log.e(TAG, "Unknown value in json serialization: " + value.toString() + " : "
                + value.getClass().getCanonicalName().toString());
    }
    return jsonOb;
}

From source file:com.datumbox.common.dataobjects.MatrixDataset.java

public static RealVector parseRecord(Record r, Map<Object, Integer> featureIdsReference) {
    if (featureIdsReference.isEmpty()) {
        throw new RuntimeException("The featureIdsReference map should not be empty.");
    }/*from  ww  w . j a v a2 s  .c o m*/

    int d = featureIdsReference.size();

    RealVector v = new ArrayRealVector(d);

    boolean addConstantColumn = featureIdsReference.containsKey(Dataset.constantColumnName);

    if (addConstantColumn) {
        v.setEntry(0, 1.0); //add the constant column
    }
    for (Map.Entry<Object, Object> entry : r.getX().entrySet()) {
        Object feature = entry.getKey();
        Double value = Dataset.toDouble(entry.getValue());
        if (value != null) {
            Integer featureId = featureIdsReference.get(feature);
            if (featureId != null) {//if the feature exists in our database
                v.setEntry(featureId, value);
            }
        } else {
            //else the X matrix maintains the 0.0 default value
        }
    }

    return v;
}

From source file:com.dcits.govsbu.southernbase.baseproject2.modules.utils.Collections3.java

/**
 * ??.//from   w ww .j a  va 2  s  .  c  om
 */
public static boolean isNotEmpty(Map map) {
    return (map != null) && !(map.isEmpty());
}

From source file:aiai.ai.launchpad.experiment.ExperimentUtils.java

public static List<HyperParams> getAllHyperParams(Map<String, String> experimentMetadatas) {
    if (experimentMetadatas == null || experimentMetadatas.isEmpty()) {
        return new ArrayList<>();
    }/*from www .j a v  a2 s  .  c o m*/

    List<HyperParams> allHyperParams = new ArrayList<>();

    List<Map.Entry<String, String>> entries = new ArrayList<>(experimentMetadatas.entrySet());

    for (Map.Entry<String, String> entry : entries) {
        NumberOfVariants ofVariants = getNumberOfVariants(entry.getValue());
        int originSize = allHyperParams.size();
        if (originSize == 0 && ofVariants.count > 0) {
            addInstances(allHyperParams, ofVariants.count);
        } else {
            for (int i = 0; i < ofVariants.count - 1; i++) {
                for (int j = 0; j < originSize; j++) {
                    HyperParams elem = allHyperParams.get(j);
                    allHyperParams.add(elem.asClone());
                }
            }
        }
        for (HyperParams list : allHyperParams) {
            for (String value : ofVariants.values) {
                if (alreadyExists(allHyperParams, list, entry.getKey(), value)) {
                    continue;
                }
                list.put(entry.getKey(), value);
                break;
            }
        }
    }
    return allHyperParams;
}

From source file:cn.martin.sys.utils.Servlets.java

/**
 * ?Parameters?Query StringParameter, paramter nameprefix.
 * //from  w  ww .  j a  v  a 2  s  .com
 * @see #getParametersStartingWith
 */
public static String encodeParameterStringWithPrefix(Map<String, Object> params, String prefix) {
    if (null == params || params.isEmpty()) {
        return "";
    }

    if (prefix == null) {
        prefix = "";
    }

    StringBuilder queryStringBuilder = new StringBuilder();
    Iterator<Entry<String, Object>> it = params.entrySet().iterator();
    while (it.hasNext()) {
        Entry<String, Object> entry = it.next();
        queryStringBuilder.append(prefix).append(entry.getKey()).append('=').append(entry.getValue());
        if (it.hasNext()) {
            queryStringBuilder.append('&');
        }
    }
    return queryStringBuilder.toString();
}

From source file:com.rsa.redchallenge.standaloneapp.utils.RestInteractor.java

/**
 * Helper function to create the URL to be called
 *
 * @param params   parameter for the call
 * @param restPath path of the interface in the REST server to be called
 * @return URL to be called/*from  www.  j ava  2s  .  com*/
 */
private static String populatePath(Map<String, Object> params, String restPath) {
    String uri = null;
    if (params != null && !params.isEmpty()) {
        String url = restPath;
        UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url);

        for (Map.Entry<String, Object> param : params.entrySet())
            builder.queryParam(param.getKey(), param.getValue());

        uri = builder.build().toUriString();
    } else {
        uri = restPath;
    }

    return uri;
}

From source file:com.thinkbiganalytics.nifi.feedmgr.NifiEnvironmentProperties.java

/**
 * Returns a collection of the Service Name along with the Map of nifi Properties stripping the ENVIRONMENT_PROPERTY_SERVICE_PREFIX from the properties
 *
 * @param envProperties the map of environment (.properties) properties
 * @return the table of nifi ready properties
 *///from   ww  w.j ava2 s .  c  o  m
public static Table<String, String, String> getEnvironmentControllerServiceProperties(
        Map<String, String> envProperties) {
    Table<String, String, String> allProps = HashBasedTable.create();
    if (envProperties != null && !envProperties.isEmpty()) {
        for (Map.Entry<String, String> entry : envProperties.entrySet()) {
            if (entry.getKey().startsWith(getPrefix())) {
                String key = environmentPropertyToControllerServiceProperty(entry.getKey());
                String serviceName = serviceNameForEnvironmentProperty(entry.getKey());
                allProps.put(serviceName, key, entry.getValue());
            }
        }
    }
    return allProps;
}