Example usage for java.util Map isEmpty

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:jp.mixi.android.sdk.util.UrlUtils.java

/**
 * map???/*from   ww w  . j a va  2s  .  c o m*/
 * 
 * @param params ?Map
 * @return ???String
 */
public static String encodeUrl(Map<String, String> params) {

    if (params == null || params.isEmpty()) {
        return "";
    }
    StringBuilder builder = new StringBuilder();
    boolean first = true;
    for (String key : params.keySet()) {
        if (first) {
            first = false;
        } else {
            builder.append(PARAM_SEPARATOR);
        }
        String value = params.get(key);
        if (key != null && value != null) {

            try {
                builder.append(URLEncoder.encode(key, HTTP.UTF_8) + EQUAL
                        + URLEncoder.encode(params.get(key), HTTP.UTF_8));
            } catch (UnsupportedEncodingException e) {
                Log.e(TAG, e.getLocalizedMessage(), e);
            }
        }
    }
    return builder.toString();
}

From source file:$.Collections3.java

/**
     * ?./*www .j  a v  a  2s.c o m*/
     */
    public static boolean isEmpty(Map map) {
        return (map == null) || map.isEmpty();
    }

From source file:com.github.gaoyangthu.core.hbase.HbaseSynchronizationManager.java

/**
 * Returns the bound tables (by name)./* w  w w . j av  a2 s  . c  o  m*/
 * 
 * @return names of bound tables
 */
public static Set<String> getTableNames() {
    Map<String, HTableInterface> map = resources.get();
    if (map != null && !map.isEmpty()) {
        return Collections.unmodifiableSet(map.keySet());
    }
    return Collections.emptySet();
}

From source file:com.intel.podm.common.types.Status.java

/**
 * Creates Status object instance from map
 * @param statusMap map representation of Status
 * @return Status object instance//from   www . j  ava  2 s  . c o m
 * @throws IllegalArgumentException if Status object instance cannot be created
 */
public static Status fromMap(Map<String, String> statusMap) {
    if (statusMap == null || statusMap.isEmpty()) {
        return null;
    }

    State state = ofNullable(statusMap.get(STATE_PROPERTY)).map(Status::mapState).orElse(null);

    Health health = ofNullable(statusMap.get(HEALTH_PROPERTY)).map(Status::mapHealth).orElse(null);

    Health healthRollup = ofNullable(statusMap.get(HEALTH_ROLLUP_PROPERTY)).map(Status::mapHealth).orElse(null);
    return new Status(state, health, healthRollup);
}

From source file:com.jms.notify.utils.StringUtil.java

/**
 *   Map??. ??  /*from  w w  w.ja  v a2s . com*/
 * 
 * @? @param obj
 * @? @return
 * @return boolean
 * @throws
 */
public static boolean isEmpty(Map<?, ?> obj) {
    return null == obj || obj.isEmpty();
}

From source file:de.micromata.genome.logging.LogRequestParameterAttribute.java

/**
 * Gets the request for logging./* w  w w .  j a  va 2  s  .co m*/
 *
 * @param request the request
 * @param excludingKeys the excluding keys
 * @return the request for logging
 */
public static String getRequestForLogging(Map<String, Object> request, String... excludingKeys) {
    if (request == null || request.isEmpty() == true) {
        return "<no params>";
    }
    StringBuilder sb = new StringBuilder();
    for (Map.Entry<String, Object> me : request.entrySet()) {
        final String key = me.getKey();
        String value = Objects.toString(me.getValue(), StringUtils.EMPTY);
        for (String exKey : excludingKeys) {
            if (StringUtils.equals(key, exKey) == true) {
                value = "****";
                break;
            }
        } // for

        sb.append(key).append('=').append(value).append('\n');
    }
    return sb.toString();
}

From source file:net.duckling.common.util.CommonUtils.java

/**
 * ??/*from w ww  .jav  a 2s .co  m*/
 * @param map Map
 * */
public static boolean isNull(Map<?, ?> map) {
    return (map == null || (map.isEmpty()));
}

From source file:Main.java

/**
 * Creates a tag from the given string values. Can be used for creating html or xml tags.
 * /*w ww  .  ja  v  a  2  s. c om*/
 * @param tagname
 *            the tagname
 * @param value
 *            the value from the tag.
 * @param attributtes
 *            a map with the attributtes
 * @return the string
 */
public static String newTag(final String tagname, final String value, final Map<String, String> attributtes) {
    StringBuilder xmlTag = new StringBuilder();
    xmlTag.append("<").append(tagname);
    if (attributtes != null && !attributtes.isEmpty()) {
        xmlTag.append(" ");
        int count = 1;
        for (Map.Entry<String, String> attributte : attributtes.entrySet()) {
            xmlTag.append(attributte.getKey());
            xmlTag.append("=");
            xmlTag.append("\"").append(attributte.getValue()).append("\"");
            if (count != attributtes.size()) {
                xmlTag.append(" ");
            }
            count++;
        }
    }
    xmlTag.append(">");
    xmlTag.append(value);
    xmlTag.append("</").append(tagname).append(">");
    return xmlTag.toString();
}

From source file:com.comstar.mars.env.EnvMapperFactoryBean.java

private static Object getRealMapper(String env, Class mapperClazz) {
    Map<String, Object> mappers = envMappers.get(env);
    if (mappers.isEmpty()) {
        return null;
    }/*w w  w . j a  va  2s  .  c o m*/

    return mappers.get(mapperClazz.getName());
}

From source file:cc.sion.core.utils.Collections3.java

/**
 * ?.
 */
public static boolean isEmpty(Map map) {
    return (map == null) || map.isEmpty();
}