Example usage for java.util HashMap isEmpty

Introduction

In this page you can find the example usage for java.util HashMap isEmpty.

Prototype

public boolean isEmpty() 

Source Link

Document

Returns true if this map contains no key-value mappings.

Usage

From source file:com.datatorrent.lib.math.AverageMap.java

/**
 * Emits average for each key in end window. Data is precomputed during
 * process on input port Clears the internal data before return.
 *//*from   w ww .ja v a 2s.c o  m*/
@Override
public void endWindow() {
    HashMap<K, V> atuples = new HashMap<K, V>();
    for (Map.Entry<K, MutableDouble> e : sums.entrySet()) {
        K key = e.getKey();
        atuples.put(key, getValue(e.getValue().doubleValue() / counts.get(key).doubleValue()));
    }

    if (!atuples.isEmpty()) {
        average.emit(atuples);
    }
    sums.clear();
    counts.clear();
}

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From source file:com.turt2live.xmail.mail.attachment.ItemAttachment.java

@Override
public boolean giveTo(XMailEntity entity) {
    if (entity instanceof XMailPlayer) {
        XMailPlayer xp = (XMailPlayer) entity;
        CommandSender sender = xp.getOwner();
        if (sender instanceof Player) {
            Player pl = (Player) sender;
            HashMap<Integer, ItemStack> overflow = pl.getInventory().addItem(item);
            if (overflow.isEmpty()) {
                return true;
            }//from w  w  w  . j  a  v a  2  s.c  o  m
        }
    }
    return false;
}

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From source file:org.neo4j.gis.spatial.osm.OSMLayer.java

@SuppressWarnings("unchecked")
/**/* ww  w.j  av  a  2s. c o  m*/
 * <pre>
 * { "step": {"type": "GEOM", "direction": "INCOMING"
 *     "step": {"type": "TAGS", "direction": "OUTGOING"
 *       "properties": {"highway": "residential"}
 *     }
 *   }
 * }
 * </pre>
 * 
 * This will work with OSM datasets, traversing from the geometry node
 * to the way node and then to the tags node to test if the way is a
 * residential street.
 */
public DynamicLayerConfig addDynamicLayerOnWayTags(String name, int type, HashMap<?, ?> tags) {
    JSONObject query = new JSONObject();
    if (tags != null && !tags.isEmpty()) {
        JSONObject step2tags = new JSONObject();
        JSONObject step2way = new JSONObject();
        JSONObject properties = new JSONObject();
        for (Object key : tags.keySet()) {
            Object value = tags.get(key);
            if (value != null && (value.toString().length() < 1 || value.equals("*")))
                value = null;
            properties.put(key.toString(), value);
        }

        step2tags.put("properties", properties);
        step2tags.put("type", "TAGS");
        step2tags.put("direction", "OUTGOING");

        step2way.put("step", step2tags);
        step2way.put("type", "GEOM");
        step2way.put("direction", "INCOMING");

        query.put("step", step2way);
    }
    if (type > 0) {
        JSONObject properties = new JSONObject();
        properties.put(PROP_TYPE, type);
        query.put("properties", properties);
    }
    System.out.println("Created dynamic layer query: " + query.toJSONString());
    return addLayerConfig(name, type, query.toJSONString());
}

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From source file:org.thingsplode.synapse.serializers.jackson.JacksonSerializer.java

private void registerHandlers(List<JsonSerializer> serializers,
        HashMap<Class, JsonDeserializer> deSerializers) {

    if (serializers != null && !serializers.isEmpty()) {
        serializers.forEach(s -> module.addSerializer(s));
    }/*  w  w  w .j  a v  a  2  s . c  o  m*/
    if (deSerializers != null && !deSerializers.isEmpty()) {
        deSerializers.forEach((k, v) -> module.addDeserializer(k, v));
    }

}

---

From source file:org.openbaton.nfvo.core.core.VNFLifecycleOperationGranting.java

private VimInstance pickVimInstance(Collection<String> vimInstanceNames,
        HashMap<VimInstance, Integer> countVDUsOnVimInstances,
        VirtualNetworkFunctionRecord virtualNetworkFunctionRecord) throws VimException, PluginException {
    if (countVDUsOnVimInstances.isEmpty()) {
        for (VimInstance vimInstance : vimInstanceRepository.findAll()) {
            Quota leftQuota = vimBroker.getLeftQuota(vimInstance);
            log.debug("Left Quota on VimInstance " + vimInstance.getName() + " at start is " + leftQuota);

            //Fetch the Flavor for getting allocated resources needed
            DeploymentFlavour flavor = null;
            for (DeploymentFlavour currentFlavor : vimInstance.getFlavours()) {
                if (currentFlavor.getFlavour_key()
                        .equals(virtualNetworkFunctionRecord.getDeployment_flavour_key())) {
                    flavor = currentFlavor;
                    break;
                }//  w ww . ja  v a  2s.c  om
            }

            //Subtract needed resources from the left resources
            int nc = 0;

            for (VirtualDeploymentUnit virtualDeploymentUnit : virtualNetworkFunctionRecord.getVdu()) {
                for (VNFComponent ignored : virtualDeploymentUnit.getVnfc()) {
                    nc++;
                }
            }

            for (int i = 1; i <= nc; i++) {
                leftQuota.setInstances(leftQuota.getInstances() - 1);
                leftQuota.setCores(leftQuota.getCores() - flavor.getVcpus());
                leftQuota.setRam(leftQuota.getRam() - flavor.getRam());
                log.debug("Left Quota on VimInstance " + vimInstance.getName() + " after considering VDU is "
                        + leftQuota);
            }

            //If one value is negative, it is not possible to deploy the VNFR on (at least on one VimInstance) -> return false
            if (leftQuota.getInstances() < 0 || leftQuota.getRam() < 0 || leftQuota.getCores() < 0) {
                log.warn("Not enough resources are available to deploy VNFR "
                        + virtualNetworkFunctionRecord.getName());
                continue;
            }
            return vimInstance;
        }
    } else {
        for (VimInstance vimInstance1 : countVDUsOnVimInstances.keySet()) {
            if (vimInstanceNames.contains(vimInstance1.getName())) {
                Quota leftQuota = vimBroker.getLeftQuota(vimInstance1);
                log.debug("Left Quota on VimInstance " + vimInstance1.getName() + " at start is " + leftQuota);
                //Fetch the Flavor for getting allocated resources needed
                DeploymentFlavour flavor = null;
                for (DeploymentFlavour currentFlavor : vimInstance1.getFlavours()) {
                    if (currentFlavor.getFlavour_key()
                            .equals(virtualNetworkFunctionRecord.getDeployment_flavour_key())) {
                        flavor = currentFlavor;
                        break;
                    }
                }
                //Subtract needed resources from the left resources
                for (int i = 1; i <= countVDUsOnVimInstances.get(vimInstance1); i++) {
                    leftQuota.setInstances(leftQuota.getInstances() - 1);
                    leftQuota.setCores(leftQuota.getCores() - flavor.getVcpus());
                    leftQuota.setRam(leftQuota.getRam() - flavor.getRam());
                    log.debug("Left Quota on VimInstance " + vimInstance1.getName()
                            + " after considering VDU is " + leftQuota);
                }
                //If one value is negative, it is not possible to deploy the VNFR on (at least on one VimInstance) -> return false
                if (leftQuota.getInstances() < 0 || leftQuota.getRam() < 0 || leftQuota.getCores() < 0) {
                    log.warn("Not enough resources are available to deploy VNFR "
                            + virtualNetworkFunctionRecord.getName());
                    continue;
                }
                return vimInstance1;
            }
        }
    }
    return null;
}

---

From source file:org.apache.hadoop.hive.ql.parse.MapReduceCompiler.java

@Override
protected void setInputFormat(Task<? extends Serializable> task) {
    if (task instanceof ExecDriver) {
        MapWork work = ((MapredWork) task.getWork()).getMapWork();
        HashMap<String, Operator<? extends OperatorDesc>> opMap = work.getAliasToWork();
        if (!opMap.isEmpty()) {
            for (Operator<? extends OperatorDesc> op : opMap.values()) {
                setInputFormat(work, op);
            }/*from  www . jav  a2 s .c o m*/
        }
    } else if (task instanceof ConditionalTask) {
        List<Task<? extends Serializable>> listTasks = ((ConditionalTask) task).getListTasks();
        for (Task<? extends Serializable> tsk : listTasks) {
            setInputFormat(tsk);
        }
    }

    if (task.getChildTasks() != null) {
        for (Task<? extends Serializable> childTask : task.getChildTasks()) {
            setInputFormat(childTask);
        }
    }
}

---

From source file:org.metis.utils.Utils.java

/**
 * Recursively steps through JSON object and arrays of objects. We support
 * only a single object or an array of objects, where each object represents
 * an entity (e.g., a student, a customer, an account, etc.).
 * //w w  w . j a va 2 s .c o m
 * All objects must have the same identical set of keys.
 * 
 * @param jp
 * @param params
 * @throws Exception
 */
private static void parseJson(JsonParser jp, List<Map<String, String>> rows) throws Exception {

    // get the next json token
    JsonToken current = jp.nextToken();

    // base case: return if we've reached end of json stream
    if (current == null) {
        return;
    }

    // all rows must have the identical set of keys!
    Map<String, String> firstRow = null;
    if (!rows.isEmpty()) {
        firstRow = rows.get(0);
    }

    // we only accept objects or arrays of objects
    switch (current) {
    case START_OBJECT:
        HashMap<String, String> row = new HashMap<String, String>();
        while (jp.nextToken() != END_OBJECT) {
            // parser should be on 'key' token
            String key = jp.getCurrentName().toLowerCase();
            // ensure all rows have the identical set of keys!
            if (firstRow != null && firstRow.get(key) == null) {
                String eStr = "parseJson: given list of json objects do " + "not have identical set of keys";
                LOG.error(eStr);
                throw new Exception(eStr);
            }
            // now advance to 'value' token
            jp.nextToken();
            String value = jp.getText();
            row.put(key, value);
        }
        // if row is not null, add it to the rows list
        if (!row.isEmpty()) {
            // ensure all rows have the identical set of keys!
            if (firstRow != null && firstRow.size() != row.size()) {
                String eStr = "parseJson: given list of json objects do "
                        + "not have identical set of keys; number of " + "keys vary";
                LOG.error(eStr);
                throw new Exception(eStr);
            }
            rows.add(row);
        }
        break;
    case START_ARRAY:
    case END_ARRAY:
        break;
    default:
        LOG.error("parseJson: ERROR, json token is neither object nor array");
        throw new Exception("parseJson: ERROR, json token is neither object nor array");
    }

    // go on to the next start-of-array, end-of-array, start-of-object, or
    // end of stream
    parseJson(jp, rows);
}

---

From source file:org.mifos.reports.branchreport.persistence.BranchReportPersistenceIntegrationTest.java

@Test
public void testPopulateCustomersFormedByLoanOfficerReturnsIfSummaryListIsEmpty() throws Exception {
    HashMap staffSummariesMock = createMock(HashMap.class);
    expect(staffSummariesMock.isEmpty()).andReturn(true);
    replay(staffSummariesMock);/* w  ww.  j  av a 2  s  .  c o m*/
    branchReportPersistence.populateTotalClientsEnrolledByPersonnel(staffSummariesMock);
    verify(staffSummariesMock);
}

---

From source file:org.mifos.reports.branchreport.persistence.BranchReportPersistenceIntegrationTest.java

@Test
public void testPopulateCustomersFormedThisMonthSetsCustomersEnrolledThisMonth() throws Exception {
    HashMap staffSummariesMock = createMock(HashMap.class);
    expect(staffSummariesMock.isEmpty()).andReturn(true);
    replay(staffSummariesMock);//  w  w w  .  ja v a  2  s  .c  o  m
    branchReportPersistence.populateClientsEnrolledByPersonnelThisMonth(staffSummariesMock);
    verify(staffSummariesMock);
}

---

From source file:org.mifos.reports.branchreport.persistence.BranchReportPersistenceIntegrationTest.java

@Test
public void testPopulateLoanArrearsAmountReturnsIfSummaryListisEmpty() throws Exception {
    HashMap staffSummariesMock = createMock(HashMap.class);
    expect(staffSummariesMock.isEmpty()).andReturn(true);
    replay(staffSummariesMock);// www  .ja v a2s  . c  o m
    branchReportPersistence.populateLoanArrearsAmountForPersonnel(staffSummariesMock, DEFAULT_CURRENCY);
    verify(staffSummariesMock);
}

---

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