Example usage for java.util Map containsKey

Introduction

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

Prototype

boolean containsKey(Object key);

Source Link

Document

Returns true if this map contains a mapping for the specified key.

Usage

From source file:Main.java

public static Map<String, Integer> countOccurencesOfWords(String str) {
    String[] words = str.split(("[\\p{IsPunctuation}\\p{IsWhite_Space}]+"));
    Map<String, Integer> map = new HashMap<String, Integer>();
    for (String s : words) {
        System.out.println(s);//from w  w w .  j a  v a2s .c  om
        if (map.containsKey(s)) {
            map.put(s, map.get(s) + 1);
        } else {
            map.put(s, 1);
        }
    }
    return map;
}

From source file:Main.java

public static void rename(Collection<Map<String, Object>> collection, Map<String, String> renames) {
    for (Map<String, Object> map : collection) {
        Object obj;/*from  w ww .  j a  va  2 s.co  m*/
        for (String originalName : renames.keySet()) {
            if (map.containsKey(originalName)) {
                obj = map.get(originalName);
                //Must remove first then added after
                map.remove(originalName);
                map.put(renames.get(originalName), obj);
            }
        }

    }
}

From source file:Main.java

/**
 * Returns a map of all values in <b>a</b> who's value is not a
 * key in <b>b</b>./*from w w w.  j  ava 2s  . co m*/
 *
 * @param a The source map of key value pairs used to populate
 * the resulting map.
 *
 * @param b The exclusion map, who's keys are the exclusions
 * matching map <b>a</b>'s values.
 *
 * @return a map of all values in <b>a</b> who's value is not a
 * key in <b>b</b>.
 */
public static <K, V> Map<K, V> outerJoin(Map<K, V> a, Map<V, ?> b) {
    Map<K, V> buffer = new HashMap<K, V>();

    for (Map.Entry<K, V> entry : a.entrySet()) {
        if (!b.containsKey(entry.getValue())) {
            buffer.put(entry.getKey(), entry.getValue());
        }
    }

    return buffer;
}

From source file:Main.java

public static String getValueFromJson(String json, String key) {
    String value = "null";
    try {/*from   w  w  w.ja v a  2s  . c  o m*/
        ObjectMapper mapper = new ObjectMapper();
        Map<String, Object> values = mapper.readValue(json, new TypeReference<Map<String, String>>() {
        });
        if (values.containsKey(key)) {
            value = values.get(key).toString();
        }
    } catch (IOException e) {
        System.out.println("Could not parse json: " + json);
    }
    return value;
}

From source file:de.hybris.platform.acceleratorstorefrontcommons.controllers.util.GlobalMessages.java

public static void addFlashMessage(final RedirectAttributes model, final String messageHolder,
        final String messageKey, final Object[] attributes) {
    final GlobalMessage message = new GlobalMessage();
    message.setCode(messageKey);/*w  w w . j a  v a2  s.  co  m*/
    message.setAttributes(attributes != null ? Arrays.asList(attributes) : Collections.emptyList());

    final Map<String, ?> flashModelMap = model.getFlashAttributes();
    if (flashModelMap.containsKey(messageHolder)) {
        final List<GlobalMessage> messages = new ArrayList<>(
                (List<GlobalMessage>) flashModelMap.get(messageHolder));
        messages.add(message);
        model.addFlashAttribute(messageHolder, messages);
    } else {
        model.addFlashAttribute(messageHolder, Collections.singletonList(message));
    }
}

From source file:com.basho.riak.client.raw.JSONErrorParser.java

/**
 * Does the map of exception data represent an m/r timeout exception?
 * /*from w ww  .j  a v  a  2s  . c om*/
 * @param exceptionData
 * @return true if <code>exceptionData</code> contains key "error" with
 *         value "timeout". False otherwise.
 */
private static boolean isTimeoutError(final Map<String, String> exceptionData) {
    return (exceptionData.containsKey(ERROR_KEY) && TIMEOUT_VALUE.equals(exceptionData.get(ERROR_KEY)));
}

From source file:com.exxonmobile.ace.hybris.storefront.controllers.util.GlobalMessages.java

public static void addFlashMessage(final RedirectAttributes model, final String messageHolder,
        final String messageKey, final Object[] attributes) {
    final GlobalMessage message = new GlobalMessage();
    message.setCode(messageKey);/*from  w  w  w . j  a  v a  2s.  c o  m*/
    message.setAttributes(attributes != null ? Arrays.asList(attributes) : Collections.emptyList());

    final Map<String, ?> flashModelMap = model.getFlashAttributes();
    if (flashModelMap.containsKey(messageHolder)) {
        final List<GlobalMessage> messages = new ArrayList<GlobalMessage>(
                (List<GlobalMessage>) flashModelMap.get(messageHolder));
        messages.add(message);
        model.addFlashAttribute(messageHolder, messages);
    } else {
        model.addFlashAttribute(messageHolder, Collections.singletonList(message));
    }
}

From source file:org.logger.event.web.utils.ServerValidationUtils.java

public static void rejectIfInvalidType(Errors errors, String data, String field, String errorCode,
        String errorMsg, Map<String, String> typeParam) {
    if (!typeParam.containsKey(data)) {
        errors.rejectValue(field, errorCode, errorMsg);
    }//from  www  .  java  2  s .  c o m
}

From source file:org.springframework.cloud.vault.VaultErrorMessage.java

/**
 * Obtain the error message from a JSON response.
 * //from  www.j  a  v  a2s .c o  m
 * @param json
 * @return
 */
static String getError(String json) {

    if (json.contains("\"errors\":")) {

        try {
            Map<String, Object> map = OBJECT_MAPPER.readValue(json.getBytes(), Map.class);
            if (map.containsKey("errors")) {

                Collection<String> errors = (Collection<String>) map.get("errors");
                if (errors.size() == 1) {
                    return errors.iterator().next();
                }
                return errors.toString();
            }

        } catch (IOException o_O) {
            // ignore
        }
    }
    return json;
}

From source file:com.simplymeasured.prognosticator.HiveUtils.java

/**
 * Get the HBase table name from an HCatalog table, which can be different from the underlying HBase table name
 *
 * @param table table instance to retrieve name from
 * @return the HBase table name/*from   w ww . java  2s .  com*/
 */
public static String getTableName(HCatTable table) {
    final String result;

    Map<String, String> tableProperties = table.getTblProps();
    if (tableProperties.containsKey(HBASE_TABLE_NAME)) {
        result = tableProperties.get(HBASE_TABLE_NAME);
    } else {
        result = table.getTableName();
    }

    return result;
}