Example usage for com.google.common.base Optional toString

List of usage examples for com.google.common.base Optional toString

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Introduction

In this page you can find the example usage for com.google.common.base Optional toString.

Prototype

@Override
public abstract String toString();

Source Link

Document

Returns a string representation for this instance.

Usage

From source file:extrabiomes.handlers.BiomeHandler.java

public static void enableBiomes() {
    final Set<WorldType> worldTypes = BiomeHelper.discoverWorldTypes();

    for (final BiomeSettings setting : BiomeSettings.values()) {
        final Optional<? extends BiomeGenBase> biome = setting.getBiome();
        if (!setting.isVanilla()) {
            if (setting.isEnabled() && biome.isPresent()) {
                BiomeHelper.enableBiome(worldTypes, biome.get());
            } else {
                LogHelper.fine("Custom biome %s disabled.", setting.toString());
            }/*from  w  w w . j  a va  2s .  c o  m*/
        } else if (!setting.isEnabled()) {
            Extrabiomes.proxy.removeBiome(BiomeHelper.settingToBiomeGenBase(setting));
            LogHelper.fine("Vanilla biome %s disabled.", biome.toString());
        }

        if (setting.allowVillages() && biome.isPresent()) {
            BiomeManager.addVillageBiome(biome.get(), true);
            LogHelper.fine("Village spawning enabled for custom biome %s.", setting.toString());
        }
    }

}

From source file:org.knight.examples.guava.basic.UsingAvoidingNullExamples.java

public void run() {
    Optional<String> o1 = Optional.of("Guava-library");
    if (o1.isPresent()) {
        log("o1: " + o1.get());
    } else {/*from ww w  . j  a v a2s .  c o m*/
        log("o1: " + o1.toString());
    }

    Optional<String> o2 = Optional.absent();
    try {
        //will cause a IllegalStateException
        log("o2: " + o2.get());
    } catch (IllegalStateException e) {
        log("o2 is absent, use get() will cause a IllegalStateException.");
    }

    Optional<String> o3 = Optional.fromNullable(null);
    log("o3 present = " + o3.isPresent());
    try {
        //will cause a IllegalStateException
        log("o3: " + o3.get());
    } catch (IllegalStateException e) {
        log("o3 is absent, use get() will cause a IllegalStateException.");
    }
    if (o3.orNull() == null) {
        log("o3 is absent, so orNull() returns null.");
    }

    Optional<String> o4 = Optional.fromNullable("Hello World");
    log("o4: " + o4.or("o4 is present, so this default value will not be printed."));

    Optional<Book> o5 = Optional.of(Book.generateBook());
    log("o5: " + o5.get().toString());
}

From source file:org.mayocat.theme.internal.DefaultThemeFileResolver.java

private String generateTemplateId(String layoutName, Optional<Breakpoint> breakpoint) {
    String themeName = context.getTheme().getDefinition().getName();
    String templateId = themeName.length() + themeName + "_" + breakpoint.toString().length()
            + breakpoint.toString() + "_" + layoutName.length() + layoutName;
    return "" + templateId.hashCode();
}

From source file:net.caseif.flint.common.metadata.persist.CommonPersistentMetadata.java

@Override
@SuppressWarnings("unchecked")
public <T> Optional<T> get(String key) throws ClassCastException {
    Optional<Object> value = super.get(key);
    if (value.isPresent() && value.get() instanceof String) {
        return Optional.of(new SimpleMetadataSerializer<T>().deserialize(value.toString()));
    }//from  ww w  . j a  v  a2 s.com
    return (Optional<T>) value;
}

From source file:com.cybozu.labs.langdetect.CommandLineInterface.java

/**
 * Batch Test of Language Detection (--batchtest option)
 * /*from w  ww.  j  a  va  2  s .  c o  m*/
 * <pre>
 * usage: --batchtest -d [profile directory] -a [alpha] -s [seed] [test data(s)]
 * </pre>
 * 
 * The format of test data(s):
 * <pre>
 *   [correct language name]\t[text body for test]\n
 * </pre>
 *  
 */
public void batchTest() throws IOException {
    LanguageDetector languageDetector = makeDetector();
    TextObjectFactory textObjectFactory = CommonTextObjectFactories.forDetectingOnLargeText();

    Map<String, List<String>> result = new HashMap<>();
    for (String filename : arglist) {
        try (BufferedReader is = new BufferedReader(
                new InputStreamReader(new FileInputStream(filename), "utf-8"))) {
            while (is.ready()) {
                String line = is.readLine();
                int idx = line.indexOf('\t');
                if (idx <= 0)
                    continue;
                String correctLang = line.substring(0, idx);
                String text = line.substring(idx + 1);

                TextObject textObject = textObjectFactory.forText(text);
                Optional<LdLocale> lang = languageDetector.detect(textObject);
                if (!result.containsKey(correctLang))
                    result.put(correctLang, new ArrayList<String>());
                if (lang.isPresent()) {
                    result.get(correctLang).add(lang.toString());
                } else {
                    result.get(correctLang).add("unknown");
                }
                if (hasParam("--debug"))
                    System.out.println(correctLang + "," + lang + ","
                            + (text.length() > 100 ? text.substring(0, 100) : text));
            }
        }

        List<String> langList = new ArrayList<>(result.keySet());
        Collections.sort(langList);

        int totalCount = 0, totalCorrect = 0;
        for (String lang : langList) {
            Map<String, Integer> resultCount = new HashMap<>();
            int count = 0;
            List<String> list = result.get(lang);
            for (String detectedLang : list) {
                ++count;
                if (resultCount.containsKey(detectedLang)) {
                    resultCount.put(detectedLang, resultCount.get(detectedLang) + 1);
                } else {
                    resultCount.put(detectedLang, 1);
                }
            }
            int correct = resultCount.containsKey(lang) ? resultCount.get(lang) : 0;
            double rate = correct / (double) count;
            System.out.println(String.format("%s (%d/%d=%.2f): %s", lang, correct, count, rate, resultCount));
            totalCorrect += correct;
            totalCount += count;
        }
        System.out.println(String.format("total: %d/%d = %.3f", totalCorrect, totalCount,
                totalCorrect / (double) totalCount));
    }
}

From source file:cz.cuni.mff.ms.brodecva.botnicek.ide.utils.swing.components.hinters.HintingDocument.java

@Override
public void remove(final int offset, final int length) throws BadLocationException {
    Preconditions.checkArgument(offset >= 0);
    Preconditions.checkArgument(length >= 0);

    final int selectionStart = this.selectionBoundsProvider.getStart();
    final int ultimateSelectionStart;
    if (selectionStart > 0) {
        ultimateSelectionStart = selectionStart - 1;
    } else {/*from w ww. j  av a  2 s.  com*/
        ultimateSelectionStart = selectionStart;
    }

    final Optional<E> matched = match(getText(0, ultimateSelectionStart));
    if (!matched.isPresent()) {
        if (this.strict) {
            super.remove(0, getLength());
        } else {
            super.remove(offset, length);
        }
    } else {
        super.remove(0, getLength());
        super.insertString(0, matched.toString(), Intended.<AttributeSet>nullReference());

        fireHintEvent(matched.get());
    }

    fireSelectionChangedEvent(ultimateSelectionStart, getLength());
}

From source file:com.vmware.photon.controller.apife.backends.NetworkXenonBackend.java

@Override
public NetworkService.State filterNetworkByPortGroup(Optional<String> portGroup)
        throws PortGroupRepeatedInMultipleNetworksException {
    ServiceDocumentQueryResult queryResult = filterServiceDocuments(Optional.absent(), portGroup,
            Optional.absent());//from ww w  . j  a  v  a2  s.c om

    ResourceList<NetworkService.State> networksList = PaginationUtils
            .xenonQueryResultToResourceList(NetworkService.State.class, queryResult);

    if (networksList == null || networksList.getItems() == null || networksList.getItems().size() == 0) {
        return null;
    } else if (networksList.getItems().size() > 1) {
        Map<String, List<NetworkService.State>> violations = new HashMap<>();
        violations.put(portGroup.toString(), networksList.getItems());
        throw new PortGroupRepeatedInMultipleNetworksException(violations);
    } else {
        return networksList.getItems().get(0);
    }
}

From source file:org.dswarm.graph.Neo4jProcessor.java

public String generateStatementHash(final String predicateName,
        final Optional<NodeType> optionalSubjectNodeType, final Optional<NodeType> optionalObjectNodeType,
        final Optional<String> optionalSubjectIdentifier, final Optional<String> optionalObjectIdentifier)
        throws DMPGraphException {

    if (!optionalSubjectNodeType.isPresent() || !optionalObjectNodeType.isPresent()
            || !optionalSubjectIdentifier.isPresent() || !optionalObjectIdentifier.isPresent()) {

        final String message = "cannot generate statement hash, because the subject node type or object node type or subject identifier or object identifier is not present";

        Neo4jProcessor.LOG.error(message);

        throw new DMPGraphException(message);
    }// ww  w  .  j  a v a 2  s.  co m

    final StringBuilder sb = new StringBuilder();

    sb.append(optionalSubjectNodeType.toString()).append(":").append(optionalSubjectIdentifier.get())
            .append(" ").append(predicateName).append(" ").append(optionalObjectNodeType.toString()).append(":")
            .append(optionalObjectIdentifier.get()).append(" ");

    MessageDigest messageDigest = null;

    try {

        messageDigest = MessageDigest.getInstance("SHA-256");
    } catch (final NoSuchAlgorithmException e) {

        throw new DMPGraphException("couldn't instantiate hash algo");
    }
    messageDigest.update(sb.toString().getBytes());

    return new String(messageDigest.digest());
}

From source file:org.dswarm.graph.batch.Neo4jProcessor.java

public long generateStatementHash(final String predicateName, final Optional<NodeType> optionalSubjectNodeType,
        final Optional<NodeType> optionalObjectNodeType, final Optional<String> optionalSubjectIdentifier,
        final Optional<String> optionalObjectIdentifier) throws DMPGraphException {

    if (!optionalSubjectNodeType.isPresent() || !optionalObjectNodeType.isPresent()
            || !optionalSubjectIdentifier.isPresent() || !optionalObjectIdentifier.isPresent()) {

        final String message = "cannot generate statement hash, because the subject node type or object node type or subject identifier or object identifier is not present";

        Neo4jProcessor.LOG.error(message);

        throw new DMPGraphException(message);
    }//from   www  .java 2 s.com

    final String hashString = optionalSubjectNodeType.toString() + ":" + optionalSubjectIdentifier.get() + " "
            + predicateName + " " + optionalObjectNodeType.toString() + ":" + optionalObjectIdentifier.get()
            + " ";

    return SipHash.digest(Neo4jProcessor.SPEC_KEY, hashString.getBytes(Charsets.UTF_8));
}

From source file:com.dowdandassociates.gentoo.bootstrap.DefaultBootstrapCommandInformationProvider.java

public BootstrapCommandInformation get() {
    if (!sessionInfo.getSession().isPresent() || !processedTemplate.getPath().isPresent()) {
        processedTemplate.cleanup();//from   w  ww.ja  v  a 2  s . com
        Optional<String> command = Optional.absent();
        return new BootstrapCommandInformation().withSessionInfo(sessionInfo).withCommand(command);
    }

    try {
        Session session = sessionInfo.getSession().get();
        Path path = processedTemplate.getPath().get();
        String filename = directory.get() + "/" + scriptName.get();

        log.info("Openning channel");

        ChannelExec channel = (ChannelExec) session.openChannel("exec");

        log.info("Setting command");

        channel.setCommand("scp -t " + filename);

        log.info("Getting input and output streams");

        OutputStream out = channel.getOutputStream();
        InputStream in = channel.getInputStream();

        log.info("Connecting channel");

        channel.connect();

        log.info("Check ack after connect");
        if (checkAck(in) != 0) {
            throw new IOException("checkAck failed after connect");
        }

        StringBuilder command = new StringBuilder();
        command.append("C0755 ");
        command.append((Long) Files.getAttribute(path, "basic:size"));
        command.append(' ');
        if (filename.lastIndexOf('/') > 0) {
            command.append(filename.substring(filename.lastIndexOf('/') + 1));
        } else {
            command.append(filename);
        }
        command.append('\n');
        log.info("scp command: " + command.toString());
        log.info("writing scp command");
        out.write(command.toString().getBytes());
        out.flush();

        log.info("check ack after scp command");
        if (checkAck(in) != 0) {
            throw new IOException("checkAck failed after scp command");
        }

        log.info("writing content");
        InputStream is = Files.newInputStream(path);
        byte[] buf = new byte[1024];
        while (true) {
            int len = is.read(buf, 0, buf.length);
            if (len <= 0) {
                break;
            }
            out.write(buf, 0, len);
        }
        is.close();
        buf[0] = 0;
        out.write(buf, 0, 1);
        out.flush();

        log.info("check after writing content");
        if (checkAck(in) != 0) {
            throw new IOException("checkAck failed after file write");
        }

        log.info("closing scp connection");
        in.close();
        out.close();
        channel.disconnect();

        return new BootstrapCommandInformation().withSessionInfo(sessionInfo).withCommand(filename);
    } catch (IllegalArgumentException | IOException | JSchException | SecurityException
            | UnsupportedOperationException e) {
        log.error(e.getMessage(), e);
        Optional<String> command = Optional.absent();
        return new BootstrapCommandInformation().withSessionInfo(sessionInfo).withCommand(command);
    } finally {
        processedTemplate.cleanup();
    }
}