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

Introduction

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

Prototype

@Nullable
public static String emptyToNull(@Nullable String string)

Source Link

Document

Returns the given string if it is nonempty; null otherwise.

Usage

From source file:org.gradle.api.internal.artifacts.dependencies.AbstractExternalModuleDependency.java

public String getVersion() {
    return Strings.emptyToNull(versionConstraint.getVersion());
}

From source file:com.github.autermann.wps.matlab.description.MatlabProcessDescription.java

public void setVersion(String version) {
    this.version = Strings.emptyToNull(version);
}

From source file:com.google.gerrit.server.project.SetDefaultDashboard.java

@Override
public Object apply(DashboardResource resource, Input input)
        throws AuthException, BadRequestException, ResourceConflictException, Exception {
    if (input == null) {
        input = new Input(); // Delete would set input to null.
    }/*from  ww  w. ja  v a2s.c o  m*/
    input.id = Strings.emptyToNull(input.id);

    ProjectControl ctl = resource.getControl();
    IdentifiedUser user = (IdentifiedUser) ctl.getCurrentUser();
    if (!ctl.isOwner()) {
        throw new AuthException("not project owner");
    }

    DashboardResource target = null;
    if (input.id != null) {
        try {
            target = dashboards.parse(new ProjectResource(ctl), IdString.fromUrl(input.id));
        } catch (ResourceNotFoundException e) {
            throw new BadRequestException("dashboard " + input.id + " not found");
        }
    }

    try {
        MetaDataUpdate md = updateFactory.create(ctl.getProject().getNameKey());
        try {
            ProjectConfig config = ProjectConfig.read(md);
            Project project = config.getProject();
            if (inherited) {
                project.setDefaultDashboard(input.id);
            } else {
                project.setLocalDefaultDashboard(input.id);
            }

            String msg = Objects.firstNonNull(Strings.emptyToNull(input.commitMessage),
                    input.id == null ? "Removed default dashboard.\n"
                            : String.format("Changed default dashboard to %s.\n", input.id));
            if (!msg.endsWith("\n")) {
                msg += "\n";
            }
            md.setAuthor(user);
            md.setMessage(msg);
            config.commit(md);
            cache.evict(ctl.getProject());

            if (target != null) {
                DashboardInfo info = get.get().apply(target);
                info.isDefault = true;
                return info;
            }
            return Response.none();
        } finally {
            md.close();
        }
    } catch (RepositoryNotFoundException notFound) {
        throw new ResourceNotFoundException(ctl.getProject().getName());
    } catch (ConfigInvalidException e) {
        throw new ResourceConflictException(String.format("invalid project.config: %s", e.getMessage()));
    }
}

From source file:com.greensopinion.swagger.jaxrsgen.model.ApiModel.java

ApiModel(String name, String description, List<String> required, LinkedHashMap<String, Property> properties) {
    this.name = checkNotNull(name);
    this.id = name;
    this.description = Strings.emptyToNull(description);
    this.required = ImmutableList.copyOf(checkNotNull(required));
    this.properties = Maps.newLinkedHashMap(checkNotNull(properties));
}

From source file:org.pentaho.di.core.attributes.metastore.JsonElement.java

@Override
public String getId() {
    if (Strings.isNullOrEmpty(super.getId())) {
        setId(getName());//w  w w.j a va 2 s  . c o  m
    }
    return Strings.emptyToNull(super.getId());
}

From source file:org.killbill.billing.plugin.core.PluginServlet.java

protected LocalDate getParameterAsLocalDate(final String parameterName, final ServletRequest req) {
    final String parameter = req.getParameter(parameterName);
    return Strings.emptyToNull(parameter) != null ? DATE_FORMAT.parseLocalDate(parameter) : null;
}

From source file:org.gradle.api.internal.artifacts.dependencies.DefaultDependencyConstraint.java

@Override
public String getVersion() {
    return Strings.emptyToNull(versionConstraint.getRequiredVersion());
}

From source file:org.apache.hive.spark.client.SparkSubmitSparkClient.java

@Override
protected String getSparkHome() {
    String sparkHome = Strings.emptyToNull(conf.get(SPARK_HOME_KEY));
    if (sparkHome == null) {
        sparkHome = Strings.emptyToNull(System.getenv(SPARK_HOME_ENV));
    }/* w w  w  . j  av a2  s.  c o  m*/
    if (sparkHome == null) {
        sparkHome = Strings.emptyToNull(System.getProperty(SPARK_HOME_KEY));
    }

    Preconditions.checkNotNull(sparkHome,
            "Cannot use " + HiveConf.HIVE_SPARK_SUBMIT_CLIENT + " without setting Spark Home");
    String master = conf.get("spark.master");
    Preconditions.checkArgument(master != null, "spark.master is not defined.");

    argv = Lists.newLinkedList();
    argv.add(new File(sparkHome, "bin/spark-submit").getAbsolutePath());

    return sparkHome;
}

From source file:com.google.gerrit.server.project.SetParent.java

@Override
public String apply(ProjectResource resource, Input input)
        throws AuthException, BadRequestException, ResourceConflictException, Exception {
    ProjectControl ctl = resource.getControl();
    IdentifiedUser user = (IdentifiedUser) ctl.getCurrentUser();
    if (!user.getCapabilities().canAdministrateServer()) {
        throw new AuthException("not administrator");
    }/*from  w w  w . j a v  a  2s.  c om*/

    try {
        MetaDataUpdate md = updateFactory.create(resource.getNameKey());
        try {
            ProjectConfig config = ProjectConfig.read(md);
            Project project = config.getProject();
            project.setParentName(Strings.emptyToNull(input.parent));

            String msg = Strings.emptyToNull(input.commitMessage);
            if (msg == null) {
                msg = String.format("Changed parent to %s.\n",
                        Objects.firstNonNull(project.getParentName(), allProjects.get()));
            } else if (!msg.endsWith("\n")) {
                msg += "\n";
            }
            md.setAuthor(user);
            md.setMessage(msg);
            config.commit(md);
            cache.evict(ctl.getProject());

            Project.NameKey parentName = project.getParent(allProjects);
            return parentName != null ? parentName.get() : "";
        } finally {
            md.close();
        }
    } catch (RepositoryNotFoundException notFound) {
        throw new ResourceNotFoundException(resource.getName());
    } catch (ConfigInvalidException e) {
        throw new ResourceConflictException(String.format("invalid project.config: %s", e.getMessage()));
    }
}

From source file:io.druid.server.namespace.URIExtractionNamespaceFunctionFactory.java

@Override
public Function<String, String> build(URIExtractionNamespace extractionNamespace,
        final Map<String, String> cache) {
    return new Function<String, String>() {
        @Nullable/*from  ww w  . j  av a2 s . c o  m*/
        @Override
        public String apply(String input) {
            if (Strings.isNullOrEmpty(input)) {
                return null;
            }
            return Strings.emptyToNull(cache.get(input));
        }
    };
}