Example usage for com.google.common.collect Maps newHashMapWithExpectedSize

List of usage examples for com.google.common.collect Maps newHashMapWithExpectedSize

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Introduction

In this page you can find the example usage for com.google.common.collect Maps newHashMapWithExpectedSize.

Prototype

public static <K, V> HashMap<K, V> newHashMapWithExpectedSize(int expectedSize)

Source Link

Document

Creates a HashMap instance, with a high enough "initial capacity" that it should hold expectedSize elements without growth.

Usage

From source file:com.arpnetworking.metrics.mad.sources.MappingSource.java

private MappingSource(final Builder builder) {
    super(builder);
    _source = builder._source;/*ww  w  .  j  a  va 2  s.com*/

    _findAndReplace = Maps.newHashMapWithExpectedSize(builder._findAndReplace.size());
    for (final Map.Entry<String, ? extends List<String>> entry : builder._findAndReplace.entrySet()) {
        _findAndReplace.put(Pattern.compile(entry.getKey()), ImmutableList.copyOf(entry.getValue()));
    }

    _source.attach(new MappingObserver(this, _findAndReplace));
}

From source file:com.viadeo.kasper.core.id.AbstractByTypeConverter.java

@Override
public Map<ID, ID> convert(final Collection<ID> ids) {

    final ListMultimap<String, ID> idsByType = Multimaps.index(ids, new Function<ID, String>() {
        @Override//from  w  w  w . j  a v  a 2  s .c om
        public java.lang.String apply(ID input) {
            return checkNotNull(input).getType();
        }
    });

    final Map<ID, ID> convertResults = Maps.newHashMapWithExpectedSize(ids.size());

    for (final String type : idsByType.keySet()) {
        convertResults.putAll(doConvert(type, idsByType.get(type)));
    }

    return convertResults;
}

From source file:eu.interedition.text.xml.XMLEntity.java

public static Map<Name, String> dataToAttributes(JsonNode data) {
    final Map<Name, String> attributes = Maps.newHashMapWithExpectedSize(data.size());
    for (Iterator<String> attrNameIt = data.getFieldNames(); attrNameIt.hasNext();) {
        try {//from   www  . j ava 2 s  .c  o  m
            final String attrName = attrNameIt.next();
            final JsonNode value = data.get(attrName);
            attributes.put(Name.fromString(attrName),
                    value.isTextual() ? value.getTextValue() : value.toString());
        } catch (IllegalArgumentException e) {
        }
    }
    return attributes;
}

From source file:org.eclipse.hawkbit.ui.management.actionhistory.ActionStatusGrid.java

protected void configureQueryFactory() {
    // ADD all the filters to the query config
    final Map<String, Object> queryConfig = Maps.newHashMapWithExpectedSize(1);
    queryConfig.put(SPUIDefinitions.ACTIONSTATES_BY_ACTION, getDetailsSupport().getMasterDataId());
    // Create ActionBeanQuery factory with the query config.
    targetQF.setQueryConfiguration(queryConfig);
}

From source file:com.voxelplugineering.voxelsniper.brush.effect.morphological.BlendMaterialOperation.java

@Override
public void reset() {
    Map<Material, Integer> mats = Maps.newHashMapWithExpectedSize(10);
}

From source file:org.opennms.netmgt.measurements.impl.JrobinFetchStrategy.java

/**
 * {@inheritDoc}// w  w  w.j  av a2s  .  c om
 */
@Override
protected FetchResults fetchMeasurements(long start, long end, long step, int maxrows,
        Map<Source, String> rrdsBySource, Map<String, Object> constants) throws RrdException {

    final long startInSeconds = (long) Math.floor(start / 1000);
    final long endInSeconds = (long) Math.floor(end / 1000);

    long stepInSeconds = (long) Math.floor(step / 1000);
    // The step must be strictly positive
    if (stepInSeconds <= 0) {
        stepInSeconds = 1;
    }

    final DataProcessor dproc = new DataProcessor(startInSeconds, endInSeconds);
    if (maxrows > 0) {
        dproc.setPixelCount(maxrows);
    }
    dproc.setFetchRequestResolution(stepInSeconds);

    for (final Map.Entry<Source, String> entry : rrdsBySource.entrySet()) {
        final Source source = entry.getKey();
        final String rrdFile = entry.getValue();
        dproc.addDatasource(source.getLabel(), rrdFile, source.getEffectiveDataSource(),
                source.getAggregation());
    }

    try {
        dproc.processData();
    } catch (IOException e) {
        throw new RrdException("JRB processing failed.", e);
    }

    final long[] timestamps = dproc.getTimestamps();

    // Convert the timestamps to milliseconds
    for (int i = 0; i < timestamps.length; i++) {
        timestamps[i] *= 1000;
    }

    final Map<String, double[]> columns = Maps.newHashMapWithExpectedSize(rrdsBySource.keySet().size());
    for (Source source : rrdsBySource.keySet()) {
        columns.put(source.getLabel(), dproc.getValues(source.getLabel()));
    }

    return new FetchResults(timestamps, columns, dproc.getStep() * 1000, constants);
}

From source file:org.attribyte.api.http.impl.servlet.Bridge.java

@SuppressWarnings("unchecked")
/**/*w w  w. j ava2s .  c o m*/
 * Creates a request from a servlet HTTP request.
 * <p>
 *   Sets an attribute, <code>remoteAddr</code> with the address reported
 *   by the servlet API.
 * </p>
 * @param request The servlet request.
 * @param maxBodyBytes The maximum number of bytes read. If < 1, the body is not read.
 */
public static final Request fromServletRequest(final HttpServletRequest request, final int maxBodyBytes)
        throws IOException {

    Map<String, Header> headers = Maps.newHashMapWithExpectedSize(8);
    List<String> valueList = Lists.newArrayListWithExpectedSize(2);
    Enumeration headerNames = request.getHeaderNames();
    while (headerNames.hasMoreElements()) {
        String name = (String) headerNames.nextElement();
        Enumeration headerValues = request.getHeaders(name);
        valueList.clear();
        while (headerValues.hasMoreElements()) {
            valueList.add((String) headerValues.nextElement());
        }

        if (valueList.size() == 1) {
            headers.put(name, new Header(name, valueList.get(0)));
        } else {
            headers.put(name, new Header(name, valueList.toArray(new String[valueList.size()])));
        }
    }

    final String queryString = request.getQueryString();

    final String requestURL = Strings.isNullOrEmpty(queryString) ? request.getRequestURL().toString()
            : request.getRequestURL().append('?').append(queryString).toString();

    final Map parameterMap = request.getParameterMap();

    Method method = Method.fromString(request.getMethod());
    switch (method) {
    case GET: {
        GetRequestBuilder grb = new GetRequestBuilder(requestURL, parameterMap);
        grb.addHeaders(headers);
        grb.addAttribute("remoteAddr", request.getRemoteAddr());
        return grb.create();
    }
    case HEAD: {
        HeadRequestBuilder hrb = new HeadRequestBuilder(requestURL, parameterMap);
        hrb.addHeaders(headers);
        hrb.addAttribute("remoteAddr", request.getRemoteAddr());
        return hrb.create();
    }
    case DELETE: {
        DeleteRequestBuilder drb = new DeleteRequestBuilder(requestURL, request.getParameterMap());
        drb.addHeaders(headers);
        drb.addAttribute("remoteAddr", request.getRemoteAddr());
        return drb.create();
    }
    }

    if (parameterMap != null && parameterMap.size() > 0) {
        FormPostRequestBuilder prb = new FormPostRequestBuilder(requestURL);
        prb.addHeaders(headers);
        prb.addParameters(request.getParameterMap());
        prb.addAttribute("remoteAddr", request.getRemoteAddr());
        return prb.create();
    } else {
        byte[] body = null;
        if (maxBodyBytes > 0) {
            InputStream is = request.getInputStream();
            try {
                body = Request.bodyFromInputStream(is, maxBodyBytes);
            } finally {
                is.close();
            }
        } else {
            ByteStreams.toByteArray(request.getInputStream()); //Read, but ignore the body...
        }

        if (method == Method.POST) {
            PostRequestBuilder prb = new PostRequestBuilder(requestURL, body);
            prb.addHeaders(headers);
            prb.addAttribute("remoteAddr", request.getRemoteAddr());
            return prb.create();
        } else {
            PutRequestBuilder prb = new PutRequestBuilder(requestURL, body);
            prb.addHeaders(headers);
            prb.addAttribute("remoteAddr", request.getRemoteAddr());
            return prb.create();
        }
    }
}

From source file:gg.uhc.uhc.modules.death.DeathStandsModule.java

@SuppressWarnings("Duplicates")
protected Map<EquipmentSlot, ItemStack> getItems(ArmorStand stand) {
    Map<EquipmentSlot, ItemStack> slots = Maps.newHashMapWithExpectedSize(5);

    slots.put(EquipmentSlot.HAND, stand.getItemInHand());
    slots.put(EquipmentSlot.HEAD, stand.getHelmet());
    slots.put(EquipmentSlot.CHEST, stand.getChestplate());
    slots.put(EquipmentSlot.LEGS, stand.getLeggings());
    slots.put(EquipmentSlot.FEET, stand.getBoots());

    return slots;
}

From source file:com.google.gitiles.LogSoyData.java

private Map<String, Object> toHeaderSoyData(Paginator paginator, @Nullable String revision) {
    Map<String, Object> data = Maps.newHashMapWithExpectedSize(5);
    data.put("logEntryPretty", pretty);
    ObjectId prev = paginator.getPreviousStart();
    if (prev != null) {
        GitilesView.Builder prevView = copyAndCanonicalizeView(revision);
        if (!prevView.getRevision().getId().equals(prev)) {
            prevView.replaceParam(LogServlet.START_PARAM, prev.name());
        }//  w w w.  j a  v a  2  s.  c om
        data.put("previousUrl", prevView.toUrl());
    }
    return data;
}

From source file:com.google.devtools.build.lib.skyframe.TargetPatternsResultBuilder.java

private void precomputePackages(WalkableGraph walkableGraph) throws InterruptedException {
    Set<PackageIdentifier> packagesToRequest = getPackagesIdentifiers();
    packages = Maps.newHashMapWithExpectedSize(packagesToRequest.size());
    for (PackageIdentifier pkgIdentifier : packagesToRequest) {
        packages.put(pkgIdentifier, findPackageInGraph(pkgIdentifier, walkableGraph));
    }//from w  w  w  . ja v a2 s  . c  om
}