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

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

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Introduction

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

Prototype

public static <K, V> HashMap<K, V> newHashMap()

Source Link

Document

Creates a mutable, empty HashMap instance.

Usage

From source file:com.zaradai.kunzite.optimizer.data.matrix.SparseMatrix.java

protected Map<Pair, T> createMap() {
    return Maps.newHashMap();
}

From source file:org.apache.shindig.gadgets.rewrite.image.ImageUtils.java

/**
 * Convert an image to a palletized one. Will not create a palette above a fixed
 * number of entries/*from   w  w w . j  a  va 2 s.  c om*/
 */
public static BufferedImage palettize(BufferedImage img, int maxEntries) {
    // Just because an image has a palette doesnt mean it has a good one
    // so we re-index even if its an IndexColorModel
    int addedCount = 0;
    Map<Integer, Integer> added = Maps.newHashMap();
    for (int y = 0; y < img.getHeight(); y++) {
        for (int x = 0; x < img.getWidth(); x++) {
            if (!added.containsKey(img.getRGB(x, y))) {
                added.put(img.getRGB(x, y), addedCount++);
            }
            if (added.size() > maxEntries) {
                // Bail if palette becomes too large
                return null;
            }
        }
    }
    int[] cmap = new int[added.size()];
    for (int c : added.keySet()) {
        cmap[added.get(c)] = c;
    }

    int bitCount = 1;
    while (added.size() >> bitCount != 0) {
        bitCount *= 2;
    }

    IndexColorModel icm = new IndexColorModel(bitCount, added.size(), cmap, 0, DataBuffer.TYPE_BYTE, null);

    // Check if generated palette matched original
    if (img.getColorModel() instanceof IndexColorModel) {
        IndexColorModel originalModel = (IndexColorModel) img.getColorModel();
        if (originalModel.getPixelSize() == icm.getPixelSize()
                && originalModel.getMapSize() == icm.getMapSize()) {
            // Old model already had efficient palette
            return null;
        }
    }

    // Be careful to assign correctly assign byte packing method based on pixel size
    BufferedImage dst = new BufferedImage(img.getWidth(), img.getHeight(),
            icm.getPixelSize() < 8 ? BufferedImage.TYPE_BYTE_BINARY : BufferedImage.TYPE_BYTE_INDEXED, icm);

    WritableRaster wr = dst.getRaster();
    for (int y = 0; y < dst.getHeight(); y++) {
        for (int x = 0; x < dst.getWidth(); x++) {
            wr.setSample(x, y, 0, added.get(img.getRGB(x, y)));
        }
    }
    return dst;
}

From source file:org.atlasapi.output.rdf.BeanIntrospector.java

public static Map<String, PropertyDescriptor> getRelations(Class<?> beanType) throws IntrospectionException {
    Map<String, PropertyDescriptor> result = Maps.newHashMap();
    Map<String, PropertyDescriptor> properties = BeanIntrospector.getPropertyDescriptors(beanType);

    for (Map.Entry<String, PropertyDescriptor> propertyEntry : properties.entrySet()) {
        Class<?> propertyType = propertyEntry.getValue().getPropertyType();

        if (Collection.class.isAssignableFrom(propertyType)) {
            Method readMethod = propertyEntry.getValue().getReadMethod();
            propertyType = GenericCollectionTypeResolver.getCollectionReturnType(readMethod);
        }/* www .  j  a v  a 2 s  . c o  m*/

        if (propertyType != null && isEntity(propertyType)) {
            result.put(propertyEntry.getKey(), propertyEntry.getValue());
        }
    }

    return result;
}

From source file:org.apache.blur.slur.BlurQueryHelper.java

private static void maybeAddSelector(BlurQuery blurQuery, SolrParams p) {
    String fieldString = p.get(CommonParams.FL);
    Selector selector = new Selector();
    selector.setRecordOnly(true);/*w ww.j  a  v  a2  s  . c o m*/

    if (fieldString != null) {
        Map<String, Set<String>> famCols = Maps.newHashMap();
        String[] fields = fieldString.split(",");

        for (String field : fields) {
            String[] famCol = field.split("\\.");

            if (famCol.length != 2) {
                throw new IllegalArgumentException("Fields must be in a family.column format[" + field + "]");
            }
            if (!famCols.containsKey(famCol[0])) {
                famCols.put(famCol[0], new HashSet<String>());
            }
            Set<String> cols = famCols.get(famCol[0]);
            cols.add(famCol[1]);
        }
        selector.setColumnsToFetch(famCols);

    }
    blurQuery.setSelector(selector);
}

From source file:org.glowroot.common.util.SystemProperties.java

public static Map<String, String> maskSystemProperties(Map<String, String> systemProperties,
        List<String> maskSystemProperties) {
    if (maskSystemProperties.isEmpty()) {
        return systemProperties;
    }/*  www. j  a  v a  2 s  .  c  o  m*/
    List<Pattern> maskPatterns = buildPatternList(maskSystemProperties);
    Map<String, String> maskedSystemProperties = Maps.newHashMap();
    for (Map.Entry<String, String> entry : systemProperties.entrySet()) {
        String name = entry.getKey();
        if (matchesAny(name, maskPatterns)) {
            maskedSystemProperties.put(name, "****");
        } else {
            maskedSystemProperties.put(name, entry.getValue());
        }
    }
    return maskedSystemProperties;
}

From source file:net.diogobohm.timed.api.db.serializer.DBTaskTagSerializer.java

@Override
public Map<String, Object> serialize(DBTaskTag object) {
    Map<String, Object> valueMap = Maps.newHashMap();

    valueMap.put("task_id", object.getTaskId());
    valueMap.put("tag_id", object.getTagId());

    return valueMap;
}

From source file:com.google.testing.junit.runner.junit4.JUnit4Options.java

/**
 * Parses the given array of arguments and returns a JUnit4Options
 * object representing the parsed arguments.
 *//*from  w w  w  .  j  a  v  a 2s.  c om*/
static JUnit4Options parse(Map<String, String> envVars, List<String> args) {
    ImmutableList.Builder<String> unparsedArgsBuilder = ImmutableList.builder();
    Map<String, String> optionsMap = Maps.newHashMap();

    optionsMap.put(TEST_INCLUDE_FILTER_OPTION, null);
    optionsMap.put(TEST_EXCLUDE_FILTER_OPTION, null);

    for (Iterator<String> it = args.iterator(); it.hasNext();) {
        String arg = it.next();
        int indexOfEquals = arg.indexOf("=");

        if (indexOfEquals > 0) {
            String optionName = arg.substring(0, indexOfEquals);
            if (optionsMap.containsKey(optionName)) {
                optionsMap.put(optionName, arg.substring(indexOfEquals + 1));
                continue;
            }
        } else if (optionsMap.containsKey(arg)) {
            // next argument is the regexp
            if (!it.hasNext()) {
                throw new RuntimeException("No filter expression specified after " + arg);
            }
            optionsMap.put(arg, it.next());
            continue;
        }
        unparsedArgsBuilder.add(arg);
    }
    // If TESTBRIDGE_TEST_ONLY is set in the environment, forward it to the
    // --test_filter flag.
    String testFilter = envVars.get(TESTBRIDGE_TEST_ONLY);
    if (testFilter != null && optionsMap.get(TEST_INCLUDE_FILTER_OPTION) == null) {
        optionsMap.put(TEST_INCLUDE_FILTER_OPTION, testFilter);
    }

    ImmutableList<String> unparsedArgs = unparsedArgsBuilder.build();
    return new JUnit4Options(optionsMap.get(TEST_INCLUDE_FILTER_OPTION),
            optionsMap.get(TEST_EXCLUDE_FILTER_OPTION), unparsedArgs.toArray(new String[unparsedArgs.size()]));
}

From source file:qa.qcri.qnoise.model.HistogramModel.java

/**
 * {@inheritDoc}/*from   w w w.java  2  s .  c om*/
 */
@Override
public int nextIndex(int start, int end) {
    HashMap<String, Integer> count = Maps.newHashMap();
    HashMap<String, List<Integer>> index = Maps.newHashMap();
    int length = end - start;
    for (int i = start; i < end; i++) {
        String data = profile.getCell(i, columnIndex);
        if (count.containsKey(data)) {
            Integer v = count.get(data);
            v++;
            count.put(data, v);
            List<Integer> list = index.get(data);
            list.add(i);
        } else {
            count.put(data, 1);
            List<Integer> list = Lists.newArrayList();
            list.add(i);
            index.put(data, list);
        }
    }

    HashMap<String, Double> hist = Maps.newHashMap();
    // normalize the ratio
    double pre = 0.0;
    for (String key : count.keySet()) {
        Integer v = count.get(key);
        double ratio = (double) v / (double) length + pre;
        hist.put(key, ratio);
        pre = ratio;
    }

    double random = Math.random();
    String selectedBin = null;
    for (String key : hist.keySet()) {
        double bound = hist.get(key);
        if (random < bound) {
            selectedBin = key;
            break;
        }
    }

    List<Integer> binIndex = index.get(selectedBin);

    return binIndex.get(0);
}

From source file:org.apache.flume.event.EventBuilder.java

public static Event withBody(long body) {
    Map<String, String> headers = Maps.newHashMap();
    headers.put(Event.bodyType, "long");
    return withBody(Longs.toByteArray(body), headers);
}

From source file:controllers.AdminDashboard.java

@Restrictions({ @Restrict("SYSTEM_MONITOR"), @Restrict("SYSTEM_ADMIN"), @Restrict("RESTRICTED_SYSTEM_ADMIN") })
public static void health() {
    Map<String, Promise<?>> promises = Maps.newHashMap();
    promises.put("nodeHealthList", AdminDashboardUtils.nodeHealthList());
    promises.put("clusterInfo", AdminDashboardUtils.clusterInfo());
    trySetRenderArgs(promises);//from   ww w. ja  va2  s  .  c om
    // Add lastUpdated render args after promises are redeemed
    renderArgs.put("nodeHealthListLastUpdated", AdminDashboardUtils.getNodeHealthListLastUpdated());
    render();
}