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

Introduction

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

Prototype

public static boolean isNullOrEmpty(@Nullable String string)

Source Link

Document

Returns true if the given string is null or is the empty string.

Usage

From source file:br.com.tecsinapse.exporter.converter.LongFromDecimalTableCellConverter.java

@Override
public Long apply(String input) {
    return Strings.isNullOrEmpty(input) ? null : new BigDecimal(input).longValue();
}

From source file:br.com.tecsinapse.exporter.converter.IntegerTableCellConverter.java

@Override
public Integer apply(String input) {
    return Strings.isNullOrEmpty(input) ? null : Integer.valueOf(input);
}

From source file:br.com.tecsinapse.exporter.converter.BigDecimalTableCellConverter.java

@Override
public BigDecimal apply(String input) {
    return Strings.isNullOrEmpty(input) ? null : new BigDecimal(input);
}

From source file:org.ow2.proactive.scheduling.api.graphql.beans.input.Inputs.java

public static final String buildQueryString(String after, String before, Integer first, Integer last,
        List<? extends ApiType> input) {

    if (!input.isEmpty() || !Strings.isNullOrEmpty(after) || !Strings.isNullOrEmpty(before) || first != null
            || last != null) {/*from ww w . ja  va 2 s .com*/
        StringBuilder sb = new StringBuilder();
        sb.append("(");
        if (!Strings.isNullOrEmpty(after)) {
            sb.append(' ').append(Arguments.AFTER.getName()).append(':').append(Constants.QUOTE).append(after)
                    .append(Constants.QUOTE);
        }
        if (!Strings.isNullOrEmpty(before)) {
            sb.append(' ').append(Arguments.BEFORE.getName()).append(':').append(Constants.QUOTE).append(before)
                    .append(Constants.QUOTE);
        }
        if (first != null) {
            sb.append(' ').append(Arguments.FIRST.getName()).append(':').append(first);
        }
        if (last != null) {
            sb.append(' ').append(Arguments.LAST.getName()).append(':').append(last);
        }
        if (!input.isEmpty()) {
            sb.append(' ').append(Arguments.FILTER.getName()).append(" : [");

            for (int i = 0; i < input.size(); i++) {
                ApiType apiType = input.get(i);

                sb.append(apiType.getQueryString());

                if (i < input.size() - 1) {
                    sb.append(',');
                }
            }

            sb.append("]");
        }
        sb.append(" )");
        return sb.toString();
    }
    return "";
}

From source file:com.talvish.tales.serialization.UrlEncoding.java

/**
 * URL encodes a string and hides the needed to handle an exception that should never happen.
 */// w w w .  ja v  a2  s.  c  o m
public static String encode(String theEncoding, String theString) {
    String encodedString = null;

    if (Strings.isNullOrEmpty(theEncoding)) {
        theEncoding = "UTF-8";
    }
    try {
        encodedString = URLEncoder.encode(theString, theEncoding);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(String.format("Didn't like '%s' encoding", theEncoding), e);
    }
    return encodedString;
}

From source file:com.magnet.mmx.server.plugin.mmxmgmt.MMXVersion.java

public static synchronized String getVersion() {
    if (version == null) {
        try {/*from  w  ww .  j  a  v  a  2s. c  o m*/
            InputStream inputStream = MMXVersion.class.getResourceAsStream("/" + VER_FILE_NAME);
            if (inputStream != null) {
                Properties props = new Properties();
                props.load(inputStream);
                String s = props.getProperty(VER_PROPERTY);
                if (!Strings.isNullOrEmpty(s)) {
                    version = s;
                }
            } else {
                LOGGER.trace("getVersion : file={} not found", VER_FILE_NAME);
            }
        } catch (Exception e) {
            LOGGER.error("getVersion : {}");
        }
    }
    return version == null ? "Version not available" : version;
}

From source file:org.haiku.haikudepotserver.dataobjects.PkgLocalization.java

public static Optional<PkgLocalization> getForPkgAndNaturalLanguageCode(ObjectContext context, Pkg pkg,
        final String naturalLanguageCode) {
    Preconditions.checkArgument(null != context, "the context must be supplied");
    Preconditions.checkArgument(null != pkg, "the pkg must be supplied");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(naturalLanguageCode),
            "the natural language code must be supplied");
    return findForPkg(context, pkg).stream()
            .filter(l -> l.getNaturalLanguage().getCode().equals(naturalLanguageCode))
            .collect(SingleCollector.optional());
}

From source file:org.haiku.haikudepotserver.dataobjects.MediaType.java

/**
 * <p>Files can have extensions that help to signify what sort of files they are.  For example, a PNG file would
 * have the extension "png".  This method will be able to return a media type for a given file extension.</p>
 *//*w  w w.  j a  va 2 s .c  o m*/

public static Optional<MediaType> getByExtension(ObjectContext context, String extension) {
    Preconditions.checkArgument(null != context, "the context must be provided");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(extension), "the extension must be provided");

    if (extension.equals(EXTENSION_HAIKUVECTORICONFILE)) {
        return tryGetByCode(context, MEDIATYPE_HAIKUVECTORICONFILE);
    }

    if (extension.equals(EXTENSION_PNG)) {
        return tryGetByCode(context, com.google.common.net.MediaType.PNG.toString());
    }

    return Optional.empty();
}

From source file:br.com.tecsinapse.exporter.converter.IntegerFromBigDecimalTableCellConverter.java

@Override
public Integer apply(String input) {
    return Strings.isNullOrEmpty(input) ? null : new BigDecimal(input).intValue();
}

From source file:qa.qcri.nadeef.web.rest.WidgetAction.java

private static String getSubquery(String filter) {
    String sql = "VIOLATION";
    if (!Strings.isNullOrEmpty(filter)) {
        if (filter.startsWith(":=")) {
            String vid = filter.substring(2).trim();
            if (!Strings.isNullOrEmpty(vid)) {
                String[] tokens = vid.split(",");
                for (String token : tokens)
                    if (!SQLUtil.isValidInteger(token))
                        throw new IllegalArgumentException("Input is not valid.");
                sql = "(select * from VIOLATION where vid = any(array[" + vid + "])) a";
            }// w w  w . j  a  v  a2  s .c  om
        } else if (filter.startsWith("?=")) {
            String tid = filter.substring(2).trim();
            if (!Strings.isNullOrEmpty(tid)) {
                String[] tokens = tid.split(",");
                for (String token : tokens)
                    if (!SQLUtil.isValidInteger(token))
                        throw new IllegalArgumentException("Input is not valid.");
                sql = "(select * from VIOLATION where tid = any(array[" + tid + "])) a";
            }
        } else {
            sql = "(select * from VIOLATION where value like '%" + filter + "%') a";
        }
    }
    return sql;
}