Example usage for java.util Optional isPresent

Introduction

In this page you can find the example usage for java.util Optional isPresent.

Prototype

public boolean isPresent() 

Source Link

Document

If a value is present, returns true , otherwise false .

Usage

From source file:cz.lbenda.dataman.db.frm.DbConfigFrmController.java

public static DbConfig openDialog(final DbConfig sc) {
    Dialog<DbConfig> dialog = DialogHelper.createDialog();
    dialog.setResizable(false);//w  w w .jav a 2s. co m
    final Tuple2<Parent, DbConfigFrmController> tuple = createNewInstance();
    if (sc != null) {
        tuple.get2().loadDataFromSessionConfiguration(sc);
    }
    dialog.setTitle(msgDialogTitle);
    dialog.setHeaderText(msgDialogHeader);

    dialog.getDialogPane().setContent(tuple.get1());
    ButtonType buttonTypeOk = ButtonType.OK;
    ButtonType buttonTypeCancel = ButtonType.CANCEL;
    dialog.getDialogPane().getButtonTypes().add(buttonTypeCancel);
    dialog.getDialogPane().getButtonTypes().add(buttonTypeOk);
    dialog.getDialogPane().setPadding(new Insets(0, 0, 0, 0));

    dialog.setResultConverter(b -> {
        if (b == buttonTypeOk) {
            DbConfig sc1 = sc;
            if (sc1 == null) {
                sc1 = new DbConfig();
                tuple.get2().storeDataToSessionConfiguration(sc1);
                DbConfigFactory.getConfigurations().add(sc1);
            } else {
                tuple.get2().storeDataToSessionConfiguration(sc1);
                if (DbConfigFactory.getConfigurations().contains(sc1)) { // The copied session isn't in list yet
                    int idx = DbConfigFactory.getConfigurations().indexOf(sc1);
                    DbConfigFactory.getConfigurations().remove(sc1);
                    DbConfigFactory.getConfigurations().add(idx, sc1);
                } else {
                    DbConfigFactory.getConfigurations().add(sc1);
                }
            }
            DbConfigFactory.saveConfiguration();
            return sc1;
        }
        return null;
    });

    Optional<DbConfig> result = dialog.showAndWait();
    if (result.isPresent()) {
        return result.get();
    }
    return null;
}

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From source file:org.trellisldp.rosid.file.CachedResource.java

/**
 * Write the resource data into a file as JSON
 * @param directory the directory//from w  w w.j av a 2  s .  co m
 * @param identifier the resource identifier
 * @param time the time
 * @return true if the write operation succeeds
 */
public static Boolean write(final File directory, final IRI identifier, final Instant time) {

    if (isNull(directory)) {
        return false;
    }

    // Write the JSON file
    LOGGER.debug("Writing JSON cache for {}", identifier.getIRIString());
    final Optional<ResourceData> data = VersionedResource.read(directory, identifier, time);
    try {
        if (data.isPresent()) {
            MAPPER.writeValue(new File(directory, RESOURCE_CACHE), data.get());
        } else {
            LOGGER.error("No resource data to cache for {}", identifier.getIRIString());
            return false;
        }
    } catch (final IOException ex) {
        LOGGER.error("Error writing resource metadata cache for {}: {}", identifier.getIRIString(),
                ex.getMessage());
        return false;
    }

    // Write the quads
    LOGGER.debug("Writing NQuads cache for {}", identifier.getIRIString());
    try (final BufferedWriter writer = newBufferedWriter(new File(directory, RESOURCE_QUADS).toPath(), UTF_8,
            CREATE, WRITE, TRUNCATE_EXISTING)) {
        final File file = new File(directory, RESOURCE_JOURNAL);
        final Iterator<String> lineIter = RDFPatch.asStream(rdf, file, identifier, time)
                .map(RDFPatch.quadToString).iterator();
        while (lineIter.hasNext()) {
            writer.write(lineIter.next() + lineSeparator());
        }
    } catch (final IOException ex) {
        LOGGER.error("Error writing resource cache for {}: {}", identifier.getIRIString(), ex.getMessage());
        return false;
    }

    return true;
}

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From source file:co.runrightfast.vertx.orientdb.impl.embedded.EmbeddedOrientDBServiceTest.java

private static void initDatabase() {
    final OServerAdmin admin = service.getServerAdmin();
    try {//from www .  ja  va 2s. com
        OrientDBUtils.createDatabase(admin, CLASS_NAME);
    } finally {
        admin.close();
    }

    final Optional<ODatabaseDocumentTxSupplier> dbSupplier = service.getODatabaseDocumentTxSupplier(CLASS_NAME);
    assertThat(dbSupplier.isPresent(), is(true));

    try (final ODatabase db = dbSupplier.get().get()) {
        final OClass timestampedClass = db.getMetadata().getSchema()
                .createAbstractClass(Timestamped.class.getSimpleName());
        timestampedClass.createProperty(Timestamped.Field.created_on.name(), OType.DATETIME);
        timestampedClass.createProperty(Timestamped.Field.updated_on.name(), OType.DATETIME);

        final OClass logRecordClass = db.getMetadata().getSchema()
                .createClass(EventLogRecord.class.getSimpleName())
                .setSuperClasses(ImmutableList.of(timestampedClass));
        logRecordClass.createProperty(EventLogRecord.Field.event.name(), OType.STRING);
    }
}

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From source file:org.openmhealth.shim.ihealth.mapper.IHealthDataPointMapper.java

/**
 * Get an effective time frame based on the measurement date/time information in the list entry node. The effective
 * time frame is set as a single point in time using an OffsetDateTime. This method does not get effective time
 * frame as a time interval./*from   w  ww  . ja v  a  2 s .  c  om*/
 *
 * @param listEntryNode A single node from the response result array.
 */
protected static Optional<TimeFrame> getEffectiveTimeFrameAsDateTime(JsonNode listEntryNode) {

    Optional<Long> weirdSeconds = asOptionalLong(listEntryNode, "MDate");

    if (!weirdSeconds.isPresent()) {
        return Optional.empty();
    }

    ZoneOffset zoneOffset = null;

    // if the time zone is a JSON string
    if (asOptionalString(listEntryNode, "TimeZone").isPresent()
            && !asOptionalString(listEntryNode, "TimeZone").get().isEmpty()) {

        zoneOffset = ZoneOffset.of(asOptionalString(listEntryNode, "TimeZone").get());
    }
    // if the time zone is an JSON integer
    else if (asOptionalLong(listEntryNode, "TimeZone").isPresent()) {

        Long timeZoneOffsetValue = asOptionalLong(listEntryNode, "TimeZone").get();

        String timeZoneString = timeZoneOffsetValue.toString();

        // Zone offset cannot parse a positive string offset that's missing a '+' sign (i.e., "0200" vs "+0200")
        if (timeZoneOffsetValue >= 0) {

            timeZoneString = "+" + timeZoneString;
        }

        zoneOffset = ZoneOffset.of(timeZoneString);
    }

    if (zoneOffset == null) {

        return Optional.empty();
    }

    return Optional.of(new TimeFrame(getDateTimeWithCorrectOffset(weirdSeconds.get(), zoneOffset)));
}

---

From source file:com.formkiq.core.form.FormFinder.java

/**
 * Find {@link FormJSONField} by field id.
 * @param form {@link FormJSON}/*from  w  ww  . j  a v a  2s  . c  o m*/
 * @param id int
 * @return {@link Optional} of {@link FormJSONField}
 */
public static Optional<FormJSONField> findField(final FormJSON form, final int id) {
    Optional<Pair<FormJSONSection, FormJSONField>> op = findSectionAndField(form, id);
    return op.isPresent() ? Optional.of(op.get().getRight()) : Optional.empty();
}

---

From source file:io.github.jeddict.relation.mapper.initializer.ColumnUtil.java

/**
 * Exception Description: The @JoinColumns on the annotated element [method
 * get] from the entity class [class Employee] is incomplete.
 *
 * When the source entity class uses a composite primary key, a @JoinColumn
 * must be specified for each join column using the @JoinColumns. Both the
 * name and the referencedColumnName elements must be specified in each such
 * '@JoinColumn'./*ww  w. j a v  a2s. c  o  m*/
 */
public static void syncronizeCompositeKeyJoincolumn(TableWidget<DBTable> sourceTableWidget,
        final TableWidget<DBTable> targetTableWidget) {
    if (sourceTableWidget.getPrimaryKeyWidgets().size() > 1) {
        for (IPrimaryKeyWidget<DBColumn<Id>> primaryKeyWidget : sourceTableWidget.getPrimaryKeyWidgets()) {
            Optional<ReferenceFlowWidget> optionalReferenceFlowWidget = primaryKeyWidget
                    .getReferenceFlowWidget().stream()
                    .filter(r -> r.getForeignKeyWidget().getTableWidget() == targetTableWidget).findFirst();
            if (optionalReferenceFlowWidget.isPresent()) {
                ForeignKeyWidget foreignKeyWidget = optionalReferenceFlowWidget.get().getForeignKeyWidget();
                IJoinColumn joinColumn;
                if (foreignKeyWidget instanceof ParentAssociationColumnWidget) {
                    joinColumn = ((DBParentAssociationColumn) foreignKeyWidget.getBaseElementSpec())
                            .getJoinColumnOverride();
                } else {
                    joinColumn = ((DBForeignKey) foreignKeyWidget.getBaseElementSpec()).getJoinColumn();
                }
                if (StringUtils.isEmpty(joinColumn.getReferencedColumnName())) {
                    joinColumn.setReferencedColumnName(primaryKeyWidget.getName());
                }
                if (StringUtils.isEmpty(joinColumn.getName())) {
                    joinColumn.setName(foreignKeyWidget.getName());
                }
            }
        }
    }
}

---

From source file:info.archinnov.achilles.internals.runtime.BeanValueExtractor.java

public static <T> BoundValuesWrapper extractPartitionKeysAndStaticValues(T instance,
        AbstractEntityProperty<T> entityProperty, Options options) {
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug(format("Extract partition key values and static columns from entity %s of type %",
                instance, entityProperty.entityClass.getCanonicalName()));
    }//from  w w w .j a va2 s.c o  m

    final List<BoundValueInfo> boundValues = new ArrayList<>();
    final List<BoundValueInfo> partitionKeys = entityProperty.partitionKeys.stream().map(x -> {
        final AbstractProperty x1 = (AbstractProperty) x;
        final BiConsumer<Object, SettableData> lambda = x1::encodeToSettable;
        return BoundValueInfo.of(lambda, x.getFieldValue(instance), x.encodeField(instance));
    }).collect(toList());

    boundValues.addAll(partitionKeys);

    boundValues.addAll(entityProperty.staticColumns.stream().map(x -> {
        final AbstractProperty x1 = (AbstractProperty) x;
        return BoundValueInfo.of(x1::encodeToSettable, x.getFieldValue(instance), x.encodeField(instance));
    }).collect(toList()));

    final Optional<Integer> ttl = OverridingOptional.from(options.getTimeToLive())
            .andThen(entityProperty.staticTTL).getOptional();

    boundValues.add(ttl.isPresent()
            ? BoundValueInfo.of(
                    (Object value, SettableData settableData) -> settableData.setInt("ttl", ttl.get()),
                    ttl.get(), ttl.get())
            : BoundValueInfo.of((Object value, SettableData settableData) -> settableData.setInt("ttl", 0), 0,
                    0));

    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug(format("Extracted encoded bound values : %s", boundValues));
    }
    return new BoundValuesWrapper(entityProperty, boundValues);

}

---

From source file:nc.noumea.mairie.appock.util.StockSpreadsheetImporter.java

private static void updateStock(Service service, String reference, int stockReel, StockService stockService,
        int ligne) throws ImportExcelException {
    Stock stock = stockService.findOne(service.getStock().getId());
    Optional<ArticleStock> articleStockOptional = stock.getListeArticleStock().stream() //
            .filter(articleStock -> articleStock.getReferenceArticleStock().equals(reference)) //
            .findFirst();/*w  w w.j a  va2 s .co m*/
    if (articleStockOptional.isPresent()) {
        int diffQuantite = stockReel - articleStockOptional.get().getQuantiteStock();
        if (diffQuantite == 0) {
            return;
        }
        TypeMouvementStock typeMouvementStock = diffQuantite < 0 ? TypeMouvementStock.SORTIE
                : TypeMouvementStock.ENTREE;
        stockService.creeEntreeSortieEtMouvement(articleStockOptional.get(), Math.abs(diffQuantite),
                typeMouvementStock, "Import inventaire");
        return;
    } else {
        throw new ImportExcelException(ligne + 1, reference,
                "Aucun article n'a t trouv dans le stock pour cette rfrence");
    }
}

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From source file:io.pravega.controller.store.stream.tables.HistoryRecord.java

/**
 * Return latest record in the history table.
 *
 * @param historyTable  history table//  w w w  .  jav  a  2 s  .c  om
 * @param ignorePartial If latest entry is partial entry, if ignore is set then read the previous
 * @return returns the history record if it is found.
 */
public static Optional<HistoryRecord> readLatestRecord(final byte[] historyTable, boolean ignorePartial) {
    if (historyTable.length < PARTIAL_FIELDS_FIXED_LENGTH) {
        return Optional.empty();
    }

    final int backToTop = BitConverter.readInt(historyTable, historyTable.length - (Integer.BYTES));

    // ignore partial means if latest record is partial, read the previous record
    Optional<HistoryRecord> record = readRecord(historyTable, historyTable.length - backToTop, false);
    assert record.isPresent();

    if (ignorePartial && record.get().isPartial()) {
        return fetchPrevious(record.get(), historyTable);
    } else {
        return record;
    }
}

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From source file:com.plotsquared.iserver.util.FileUtils.java

public static String getDocument(final File file, int buffer, boolean create) {
    final Optional<String> cacheEntry = Server.getInstance().getCacheManager().getCachedFile(file.toString());
    if (cacheEntry.isPresent()) {
        return cacheEntry.get();
    }/*  w w  w .  ja  v a  2s . c o  m*/

    StringBuilder document = new StringBuilder();
    try {
        if (!file.exists()) {
            if (!file.getParentFile().exists()) {
                file.getParentFile().mkdirs();
            }
            if (create) {
                file.createNewFile();
                return "";
            }
        }

        BufferedReader reader = new BufferedReader(new FileReader(file), buffer);
        String line;
        while ((line = reader.readLine()) != null) {
            document.append(line).append("\n");
        }
        reader.close();
    } catch (final Exception e) {
        e.printStackTrace();
    }

    final String content = document.toString();
    Server.getInstance().getCacheManager().setCachedFile(file.toString(), content);
    return content;
}

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