Example usage for java.util Map size

Introduction

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

Prototype

int size();

Source Link

Document

Returns the number of key-value mappings in this map.

Usage

From source file:com.espertech.esperio.csv.CSVPropertyOrderHelper.java

private static boolean isValidRowLength(String[] row, Map<String, Object> propertyTypes) {
    log.debug(".isValidRowLength");
    if (row == null) {
        return false;
    }//from ww w  . j av a2 s.  c om
    // same row size, or with timestamp column added, or longer due to flatten nested properties
    return (row.length == propertyTypes.size()) || (row.length == propertyTypes.size() + 1)
            || (row.length > propertyTypes.size());
}

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From source file:com.thruzero.common.core.utils.StringUtilsExt.java

/**
 * Converts the given Map of {@code keyValuePairs} into a token stream, using the given {@code separator}.
 * <p>//from w  w w  . j a  v a2s.  c om
 * Example: "integerOne=1,booleanTrue=true,longOne=1234567890,booleanFalse=false"
 */
public static String toTokenStream(final Map<String, String> keyValuePairs, final String separator) {
    StringBuilder result = new StringBuilder(keyValuePairs.size() * 16); // assume 16-chars for each k/v token.
    String tokenSeparator = "";
    Map<String, String> parametersToStream = keyValuePairs;

    for (Entry<String, String> entry : parametersToStream.entrySet()) {
        result.append(tokenSeparator);
        result.append(entry.getKey());
        result.append('=');
        result.append(entry.getValue());
        tokenSeparator = separator;
    }

    return result.toString();
}

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From source file:com.fizzed.rocker.runtime.Java8Iterator.java

static public <K, V> void forEach(Map<K, V> items, ConsumeMapWithIterator<K, V> consumer)
        throws RenderingException, IOException {
    IndexOnlyForIterator it = new IndexOnlyForIterator(items.size());
    for (Map.Entry<K, V> item : items.entrySet()) {
        it.increment();//w w  w .  ja  va 2 s .c o  m
        consumer.accept(it, item.getKey(), item.getValue());
    }
}

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From source file:com.github.gdfm.shobaidogu.StatsUtils.java

/**
 * Normalize with l2 norm.//from   ww  w .  jav a 2  s.c  om
 * 
 * @param vector
 */
public static <K, V extends Number> Map<K, Double> l2Normalize(Map<K, V> vector) {
    if (vector == null || vector.size() == 0)
        throw new IllegalArgumentException("Cannot normalize an empy vector: " + vector);
    Map<K, Double> result = Maps.newHashMap();
    double normalizer = magnitude(vector);
    for (Map.Entry<K, V> entry : vector.entrySet())
        result.put(entry.getKey(), entry.getValue().doubleValue() / normalizer);
    return result;
}

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From source file:Main.java

public static <K, V> Map<K, V> valueSortedMap(Map<K, V> map, Comparator<Entry<K, V>> comparator) {
    Set<Entry<K, V>> valueSortedEntries = new TreeSet<Entry<K, V>>(comparator);

    for (Entry<K, V> entry : map.entrySet()) {
        valueSortedEntries.add(entry);//from  w ww .  j  a  v  a 2s .  co  m
    }

    Map<K, V> sortedMap = new LinkedHashMap<K, V>(map.size());
    for (Entry<K, V> entry : valueSortedEntries) {
        sortedMap.put(entry.getKey(), entry.getValue());
    }

    return sortedMap;
}

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From source file:com.github.gdfm.shobaidogu.StatsUtils.java

/**
 * Normalize in place with l2 norm.//w ww.ja  v a 2  s.  com
 * 
 * @param vector
 */
public static <K> void l2NormalizeInPlace(Map<K, Double> vector) {
    if (vector == null || vector.size() == 0)
        throw new IllegalArgumentException("Cannot normalize an empy vector: " + vector);
    double normalizer = magnitude(vector);
    for (Map.Entry<K, Double> entry : vector.entrySet())
        vector.put(entry.getKey(), entry.getValue() / normalizer);
}

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From source file:com.sugaronrest.restapicalls.ModuleInfoExt.java

/**
 * Gets modules linked information.// w w  w.j a va2 s  .com
 *
 *  @param linkedModules The module linked info list.
 *  @return Dictionary map of linked modules.
 */
public static List<Object> getJsonLinkedInfo(Map<Object, List<String>> linkedModules) throws Exception {
    if ((linkedModules == null) || (linkedModules.size() == 0)) {
        return null;
    }

    Map<String, List<String>> linkedInfo = getLinkedInfo(linkedModules);

    if ((linkedInfo == null) || (linkedInfo.size() == 0)) {
        return null;
    }

    List<Object> jsonLinkedInfoList = new ArrayList<Object>();

    for (Map.Entry<String, List<String>> entry : linkedInfo.entrySet()) {

        Map<String, Object> namevalueMap = new HashMap<String, Object>();
        namevalueMap.put("name", entry.getKey());
        namevalueMap.put("value", entry.getValue());

        jsonLinkedInfoList.add(namevalueMap);
    }

    return jsonLinkedInfoList;
}

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From source file:com.vmware.photon.controller.rootscheduler.simulator.CloudStoreLoader.java

/**
 * Creates host documents in cloudstore.
 *
 * @param cloudstore CloudStore test environment to create documents in.
 * @param numHosts The number of host documents to create.
 * @param hostConfigurations A map from {@link HostConfiguration} to the probability that this
 *                           host configuration is used in the deployment. The sum of all the
 *                           values of this map must be 1.
 * @param numDatastores The number of datastores.
 * @param numDatastoresDistribution Distribution for number of datastores on each host. This
 *                                  distribution is expected to generate samples in the range
 *                                  [0, numDatastores].
 * @throws Throwable/*w w w  . j a  va2  s.  co  m*/
 */
public static void loadHosts(TestEnvironment cloudstore, int numHosts,
        Map<HostConfiguration, Double> hostConfigurations, int numDatastores,
        IntegerDistribution numDatastoresDistribution) throws Throwable {
    int[] indices = new int[hostConfigurations.size()];
    HostConfiguration[] configs = new HostConfiguration[hostConfigurations.size()];
    double[] probabilities = new double[hostConfigurations.size()];
    int i = 0;
    for (Map.Entry<HostConfiguration, Double> entry : hostConfigurations.entrySet()) {
        indices[i] = i;
        configs[i] = entry.getKey();
        probabilities[i] = entry.getValue();
        i++;
    }
    EnumeratedIntegerDistribution configDistribution = new EnumeratedIntegerDistribution(indices,
            probabilities);
    for (i = 0; i < numHosts; i++) {
        HostService.State host = new HostService.State();
        host.hostAddress = "host" + i;
        host.state = HostState.READY;
        host.userName = "username";
        host.password = "password";
        host.reportedDatastores = new HashSet<>();
        int numDatastoresPerHost = numDatastoresDistribution.sample();
        assertThat(numDatastoresPerHost >= 0, is(true));
        assertThat(numDatastoresPerHost <= numDatastores, is(true));
        while (host.reportedDatastores.size() < numDatastoresPerHost) {
            int randomInt = random.nextInt(numDatastores);
            host.reportedDatastores.add(new UUID(0, randomInt).toString());
        }
        host.reportedNetworks = new HashSet<>();
        host.usageTags = new HashSet<>(Arrays.asList(UsageTag.CLOUD.name()));
        int configIndex = configDistribution.sample();
        host.cpuCount = configs[configIndex].numCpus;
        host.memoryMb = configs[configIndex].memoryMb;
        host.documentSelfLink = new UUID(0, i).toString();
        // TODO(mmutsuzaki) Support availability zones.
        Operation result = cloudstore.sendPostAndWait(HostServiceFactory.SELF_LINK, host);
        assertThat(result.getStatusCode(), is(200));
        logger.debug("Created a host document: {}", Utils.toJson(true, false, host));
    }
}

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From source file:com.erudika.para.utils.ValidationUtils.java

/**
 * Returns the JSON object containing all validation constraints for all the core Para classes and classes defined
 * by the given app.// w w w. ja  v  a2  s . c om
 *
 * @param app an app
 * @return JSON string
 */
public static String getAllValidationConstraints(App app) {
    String json = "{}";
    try {
        ObjectNode parentNode = Utils.getJsonMapper().createObjectNode();
        for (String type : RestUtils.getAllTypes(app).values()) {
            Map<?, ?> constraintsNode = getValidationConstraints(app, type);
            if (constraintsNode.size() > 0) {
                parentNode.putPOJO(StringUtils.capitalize(type), constraintsNode);
            }
        }
        json = Utils.getJsonWriter().writeValueAsString(parentNode);
    } catch (IOException ex) {
        logger.error(null, ex);
    }
    return json;
}

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From source file:com.feilong.core.bean.BeanUtilTemp.java

/**
 * To dyna property array.//ww  w.j  a v  a 2  s .c  o m
 *
 * @param typeMap
 *            the type map
 * @return the dyna property[]
 * @since 1.8.0
 */
private static DynaProperty[] toDynaPropertyArray(Map<String, Class<?>> typeMap) {
    DynaProperty[] dynaPropertys = new DynaProperty[typeMap.size()];
    int i = 0;
    for (Map.Entry<String, Class<?>> entry : typeMap.entrySet()) {
        dynaPropertys[i] = new DynaProperty(entry.getKey(), entry.getValue());
        i++;
    }
    return dynaPropertys;
}

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