Example usage for com.google.common.base Strings nullToEmpty

List of usage examples for com.google.common.base Strings nullToEmpty

  1. HOME
  2. Java
  3. com.google.common
  4. com.google.common.base.*
  5. Strings
  6. nullToEmpty

Introduction

In this page you can find the example usage for com.google.common.base Strings nullToEmpty.

Prototype

public static String nullToEmpty(@Nullable String string)

Source Link

Document

Returns the given string if it is non-null; the empty string otherwise.

Usage

From source file:org.gradle.api.publish.ivy.internal.artifact.AbstractIvyArtifact.java

@Override
public void setConf(@Nullable String conf) {
    this.conf = Strings.nullToEmpty(conf);
}

From source file:com.attribyte.essem.query.GraphQuery.java

/**
 * Creates a graph query from an HTTP request.
 * @param request The HTTP request./*from w  w  w  . j a  va  2s . co m*/
 * @param defaultRange The default range expression.
 */
public GraphQuery(final HttpServletRequest request, final String defaultRange) {

    SearchRequest.Builder requestBuilder = SearchRequest.builder();
    BooleanQuery.Builder queryBuilder = BooleanQuery.builder();
    matchAnyOf(request, "host", Fields.HOST_FIELD, queryBuilder);
    matchAnyOf(request, "app", Fields.APPLICATION_FIELD, queryBuilder);
    matchAnyOf(request, "application", Fields.APPLICATION_FIELD, queryBuilder);
    matchAnyOf(request, "instance", Fields.INSTANCE_FIELD, queryBuilder);
    matchAnyOf(request, "name", Fields.NAME_FIELD, queryBuilder);
    matchAnyOf(request, "metric", Fields.TYPE_FIELD, queryBuilder);
    parseMinMax(request, queryBuilder);

    IntRangeQuery rangeQuery = parseRange(request, defaultRange);
    queryBuilder.mustMatch(rangeQuery);
    String rangeStr = Strings.nullToEmpty(request.getParameter(RANGE_PARAMETER)).trim();
    if (rangeStr.length() == 0) {
        rangeStr = defaultRange;
    }
    this.range = new Range(rangeStr, rangeQuery.minValue, rangeQuery.maxValue);

    requestBuilder.setQuery(queryBuilder.build());

    String[] fields = request.getParameterValues("field");
    if (fields == null || fields.length == 0) {
        requestBuilder.addFields(numericFields);
        fields = numericFields.toArray(new String[numericFields.size()]);
    } else {
        for (String field : fields) {
            requestBuilder.addField(field);
        }
    }

    List<String> aggregateOn = parseAggregate(request, nonNumericFields);

    if (aggregateOn == INVALID_AGGREGATE) {
        this.error = "Only 'name', 'host', 'application', 'instance' are valid for 'aggregateOn'";
        this.isAggregation = false;
        this.searchRequest = null;
        this.downsampleFunction = null;
        this.downsampleInterval = null;
    } else if (aggregateOn.size() == 0) {
        requestBuilder.addField(Fields.NAME_FIELD);
        requestBuilder.addField(Fields.APPLICATION_FIELD);
        requestBuilder.addField(Fields.HOST_FIELD);
        requestBuilder.addField(Fields.INSTANCE_FIELD);
        requestBuilder.addField(Fields.TIMESTAMP_FIELD);
        String sortStr = getParameter(request, "sort", "asc").toLowerCase();
        Sort sort = sortStr.equals("desc") ? TS_DESC : TS_ASC;
        requestBuilder.setSort(sort);
        requestBuilder.setStart(Util.getParameter(request, START_INDEX_PARAMETER, 0));
        requestBuilder.setLimit(Util.getParameter(request, LIMIT_PARAMETER, DEFAULT_LIMIT));
        this.isAggregation = false;
        this.searchRequest = requestBuilder.build();
        this.downsampleInterval = null;
        this.downsampleFunction = null;
        this.error = null;
    } else {
        DateHistogramAggregation.Interval aggregationInterval = parseResolution(request);
        if (aggregationInterval != null) {
            this.downsampleInterval = aggregationInterval.name().toLowerCase();
            BucketAggregation.Order order = BucketAggregation.Order.fromString(request.getParameter("sort"),
                    BucketAggregation.Order.KEY_ASC);

            List<String> numericFields = Lists.newArrayListWithExpectedSize(fields.length);
            for (String field : fields) {
                if (!nonNumericFields.containsKey(field)) {
                    numericFields.add(field);
                }
            }

            if (numericFields.size() > 0) {
                List<Aggregation> fieldAggregations = Lists.newArrayListWithExpectedSize(numericFields.size());
                this.downsampleFunction = getParameter(request, DOWNSAMPLE_FN_PARAMETER, DEFAULT_DOWNSAMPLE_FN);

                MetricAggregation protoAggregation = metricAggregationProtos
                        .get(this.downsampleFunction.toLowerCase().trim());
                if (protoAggregation == null) {
                    protoAggregation = metricAggregationProtos.get(DEFAULT_DOWNSAMPLE_FN);
                }

                for (String field : numericFields) {
                    fieldAggregations.add(protoAggregation.newInstance(field, field));
                }

                DateHistogramAggregation histogramAggregation = new DateHistogramAggregation(
                        protoAggregation.getType(), Fields.TIMESTAMP_FIELD, aggregationInterval, order,
                        fieldAggregations);

                if (aggregateOn.size() == 1) {
                    requestBuilder.addAggregation(
                            new TermsAggregation(aggregateOn.get(0), aggregateOn.get(0), MAX_AGGREGATION_SIZE,
                                    Collections.<Aggregation>singletonList(histogramAggregation)));
                } else {
                    Collections.reverse(aggregateOn);
                    Iterator<String> aggregateFieldIter = aggregateOn.iterator();
                    String currField = aggregateFieldIter.next();
                    TermsAggregation currAggregation = new TermsAggregation(currField, currField,
                            MAX_AGGREGATION_SIZE, Collections.<Aggregation>singletonList(histogramAggregation));
                    while (aggregateFieldIter.hasNext()) {
                        currField = aggregateFieldIter.next();
                        currAggregation = new TermsAggregation(currField, currField, MAX_AGGREGATION_SIZE,
                                Collections.<Aggregation>singletonList(currAggregation));
                    }
                    requestBuilder.addAggregation(currAggregation);
                }

                //We never want aggregation query hits...

                requestBuilder.setStart(0);
                requestBuilder.setLimit(0);

                this.isAggregation = true;
                this.error = null;
                this.searchRequest = requestBuilder.build();

            } else {
                this.isAggregation = false;
                this.downsampleFunction = null;
                this.searchRequest = null;
                this.error = "At least one numeric field must be specified";
            }

        } else {
            this.error = "A valid '" + RESOLUTION_PARAMETER + "' must be specified";
            this.searchRequest = null;
            this.downsampleInterval = null;
            this.downsampleFunction = null;
            this.isAggregation = false;
        }
    }
}

From source file:com.facebook.buck.parser.AbstractParserConfig.java

/**
 * A (possibly empty) sequence of paths to files that should be included by default when
 * evaluating a build file./*from w  ww  .  j  av a  2s .  co m*/
 */
@Value.Lazy
public Iterable<String> getDefaultIncludes() {
    ImmutableMap<String, String> entries = getDelegate().getEntriesForSection(BUILDFILE_SECTION_NAME);
    String includes = Strings.nullToEmpty(entries.get("includes"));
    return Splitter.on(' ').trimResults().omitEmptyStrings().split(includes);
}

From source file:biz.ganttproject.core.chart.canvas.FontChooser.java

public Font getFont(String style) {
    if ("hidden".equalsIgnoreCase(myProperties.getProperty(style + ".visibility"))) {
        return null;
    }//from  ww w  . j a  va 2 s. c o  m
    Font f = myFonts.get(style);
    if (f == null) {
        String propValue = Strings.nullToEmpty(myProperties.getProperty(style + ".font")).trim();
        if (propValue.isEmpty()) {
            // If .font property is not set then we use the base font
            f = myBaseFont.get();
        } else {
            String[] components = propValue.split("\\s+");
            String last = components[components.length - 1];
            String family = "";
            float absoluteSize;
            try {
                // If the last component of .font property is int/float then
                // we check whether it is a relative increment (it should be prefixed with sign)
                // or an absolute value
                if (last.startsWith("+") || last.startsWith("-")) {
                    absoluteSize = Float.parseFloat(last) + myBaseFont.get().getSize();
                } else {
                    absoluteSize = Float.parseFloat(last);
                }
                if (components.length > 1) {
                    family = Joiner.on(' ').join(Arrays.asList(components).subList(0, components.length - 1));
                }
                if (family.isEmpty()) {
                    f = myBaseFont.get().deriveFont(absoluteSize);
                } else {
                    f = Font.decode(family + " 10");
                    if (f == null) {
                        f = myBaseFont.get();
                    }
                    f = f.deriveFont(absoluteSize);
                }
            } catch (NumberFormatException e) {
                f = Font.decode(propValue);
            }
        }
        myFonts.put(style, f);
    }
    return f;
}

From source file:fr.da2i.lup1.entity.formation.Member.java

public String getAddress() {
    return Strings.nullToEmpty(address);
}

From source file:org.kegbot.app.setup.SetupKegbotUrlFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final AppConfiguration prefs = ((KegbotApplication) getActivity().getApplication()).getConfig();

    mView = inflater.inflate(R.layout.setup_kegbot_url_fragment, null);
    mText = (EditText) mView.findViewById(R.id.kegbotUrl);
    mSchemeText = (TextView) mView.findViewById(R.id.kegbotUrlScheme);
    mUseSsl = (CheckBox) mView.findViewById(R.id.useSsl);

    mUseSsl.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override/*from   www  . j a  va 2s .  co m*/
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if (b) {
                mSchemeText.setText(R.string.kegbot_url_scheme_https);
            } else {
                mSchemeText.setText(R.string.kegbot_url_scheme_http);
            }
        }
    });
    mUseSsl.setChecked(mText.getText().toString().startsWith("https"));

    final String existingUrl = prefs.getKegbotUrl();
    if (!Strings.isNullOrEmpty(existingUrl)) {
        // Don't clobber the hint if empty.
        final Matcher matcher = URL_PATTERN.matcher(existingUrl);
        if (matcher.matches()) {
            mText.setText(Strings.nullToEmpty(matcher.group(2)));
            mUseSsl.setChecked(Strings.nullToEmpty(matcher.group(1)).startsWith("https"));
        }
    }

    mText.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
            final String textStr = mText.getText().toString();

            if (textStr.endsWith(".keghub.com") && !mUseSsl.isChecked()) {
                mUseSsl.setChecked(true);
            }
        }

        @Override
        public void afterTextChanged(Editable editable) {
        }
    });

    return mView;
}

From source file:com.ning.arecibo.dashboard.resources.HostsStore.java

private void start() {
    service.scheduleWithFixedDelay(new Runnable() {
        @Override//from  www .j  a v a2 s.  com
        public void run() {
            final ImmutableMultimap.Builder<String, Map<String, String>> builder = new ImmutableMultimap.Builder<String, Map<String, String>>();
            final Iterable<String> hosts = client.getHosts();

            for (final String hostName : hosts) {
                final String coreType = Strings.nullToEmpty(galaxyStatusManager.getCoreType(hostName));
                builder.put(coreType, ImmutableMap.<String, String>of("hostName", hostName, "globalZone",
                        Strings.nullToEmpty(galaxyStatusManager.getGlobalZone(hostName)), "configPath",
                        Strings.nullToEmpty(galaxyStatusManager.getConfigPath(hostName)), "configSubPath",
                        Strings.nullToEmpty(galaxyStatusManager.getConfigSubPath(hostName)), "coreType",
                        coreType));
            }

            updateCacheIfNeeded(builder.build());
        }
    }, config.getSampleKindsUpdaterDelay().getMillis(), config.getSampleKindsUpdaterDelay().getMillis(),
            TimeUnit.MILLISECONDS);
    // We give an initial delay for the Galaxy manager to query the Gonsole first

    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            service.shutdownNow();
        }
    });
}

From source file:de.metas.ui.web.letter.WebuiLetterRepository.java

public void createC_Letter(@NonNull final WebuiLetter letter) {
    final I_C_Letter persistentLetter = InterfaceWrapperHelper.newInstance(I_C_Letter.class);
    persistentLetter.setLetterSubject(letter.getSubject());
    persistentLetter.setLetterBody(Strings.nullToEmpty(letter.getContent()));
    persistentLetter.setLetterBodyParsed(letter.getContent());

    persistentLetter.setAD_BoilerPlate_ID(letter.getTextTemplateId());

    persistentLetter.setC_BPartner_ID(letter.getBpartnerId());
    persistentLetter.setC_BPartner_Location_ID(letter.getBpartnerLocationId());
    persistentLetter.setC_BP_Contact_ID(letter.getBpartnerContactId());
    persistentLetter.setBPartnerAddress(Strings.nullToEmpty(letter.getBpartnerAddress()));

    InterfaceWrapperHelper.save(persistentLetter);
}

From source file:org.sonar.server.component.db.SnapshotDao.java

public int updateSnapshotAndChildrenLastFlagAndStatus(DbSession session, SnapshotDto snapshot, boolean isLast,
        String status) {/*from  www. j a v  a 2  s  .c  o m*/
    Long rootId = snapshot.getId();
    String path = Strings.nullToEmpty(snapshot.getPath()) + snapshot.getId() + ".%";
    Long pathRootId = snapshot.getRootIdOrSelf();

    return mapper(session).updateSnapshotAndChildrenLastFlagAndStatus(rootId, pathRootId, path, isLast, status);
}

From source file:uk.org.ngo.squeezer.model.Album.java

private Album(Parcel source) {
    setId(source.readString());/*from   www  .j  a v  a 2 s.  co  m*/
    name = source.readString();
    artist = source.readString();
    year = source.readInt();
    setArtwork_track_id(source.readString());
    mArtworkUrl = Uri.parse(Strings.nullToEmpty(source.readString()));
}