Example usage for java.util List isEmpty

Introduction

In this page you can find the example usage for java.util List isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:com.strategicgains.docussandra.ParseUtils.java

/**
 * Converts a string to a date. Uses DateAdaptorJ, if that fails, falls back
 * to Natty.//from  w  ww  .j  ava  2s.c  o m
 *
 * @param in String to convert to a date.
 * @return A date based on the string.
 * @throws IndexParseFieldException If the field cannot be parsed as a date.
 */
public static Date parseStringAsDate(String in) throws IndexParseFieldException //TODO: come back to this and add more tests, i am not yet entirely happy with it
{
    DateAdapter adapter = new DateAdapter();
    try {
        return adapter.parse(in);
    } catch (ParseException e)//fall back to netty if that fails
    {
        Parser parser = new Parser(TimeZone.getTimeZone("GMT"));//assume all dates are GMT
        List<DateGroup> dg = parser.parse(in);
        if (dg.isEmpty()) {
            throw new IndexParseFieldException(in);
        }
        List<Date> dates = dg.get(0).getDates();
        if (dates.isEmpty()) {
            throw new IndexParseFieldException(in);
        }
        return dates.get(0);//dang; that actually works
    }
}

From source file:io.github.seleniumquery.functions.jquery.forms.ValFunction.java

public static String val(List<WebElement> elements) {
    if (elements.isEmpty()) {
        return null;
    }//  w  ww  .  j  a v  a  2  s .c om
    return val(elements.get(0));
}

From source file:org.sakaiproject.genericdao.springutil.ResourceFinder.java

private static List<Resource> makeResources(List<String> paths) {
    List<Resource> rs = new ArrayList<Resource>();
    if (paths != null && !paths.isEmpty()) {
        ClassLoader cl = ResourceFinder.class.getClassLoader();
        for (String path : paths) {
            Resource r = new ClassPathResource(path, cl);
            if (r.exists()) {
                rs.add(r);/*w ww .j av a 2 s.com*/
            }
        }
    }
    return rs;
}

From source file:com.addthis.bundle.util.AutoField.java

public static AutoField newAutoField(List<String> names, boolean parseIndex) {
    checkNotNull(names);/*from   w w  w  .j av a2  s .co  m*/
    checkArgument(!names.isEmpty(), "list of field names must not be empty (usually >=2)");
    String name = names.get(0);
    AutoField baseAutoField;
    if (parseIndex) {
        baseAutoField = new IndexField(name);
    } else {
        baseAutoField = new CachingField(name);
    }
    if (names.size() == 1) {
        return baseAutoField;
    } else {
        String[] subNames = names.subList(1, names.size()).toArray(new String[names.size() - 1]);
        return new FullAutoField(baseAutoField, subNames);
    }
}

From source file:com.thinkbiganalytics.metadata.rest.jobrepo.nifi.NifiFeedProcessorStatsTransform.java

/**
 * Converts the domain model objects to the rest model equivalent
 *
 * @param domains A list of domain objects
 * @return a list of converted objects, or null if the provided list was empty
 *//*w w  w  . j a va2s.c o m*/
public static List<NifiFeedProcessorStats> toModel(
        List<? extends com.thinkbiganalytics.metadata.api.jobrepo.nifi.NifiFeedProcessorStats> domains) {
    if (domains != null && !domains.isEmpty()) {
        return domains.stream().map(domain -> toModel(domain)).collect(Collectors.toList());
    }
    return null;
}

From source file:edu.uci.ics.asterix.optimizer.base.AnalysisUtil.java

public final static ILogicalOperator firstChildOfType(AbstractLogicalOperator op, LogicalOperatorTag opType) {
    List<Mutable<ILogicalOperator>> ins = op.getInputs();
    if (ins == null || ins.isEmpty()) {
        return null;
    }/*from  ww  w.ja va 2s  .c  o  m*/
    Mutable<ILogicalOperator> opRef2 = ins.get(0);
    AbstractLogicalOperator op2 = (AbstractLogicalOperator) opRef2.getValue();
    if (op2.getOperatorTag() == opType) {
        return op2;
    } else {
        return null;
    }
}

From source file:com.thinkbiganalytics.metadata.rest.jobrepo.nifi.NifiFeedProcessorStatsTransform.java

/**
 * Converts the domain model objects to the rest model equivalent
 *
 * @param domains A list of domain objects
 * @return a list of converted objects, or null if the provided list was empty
 *///from   ww w .  java  2  s.  c om
public static List<NifiFeedProcessorStatsErrors> toErrorsModel(
        List<? extends com.thinkbiganalytics.metadata.api.jobrepo.nifi.NifiFeedProcessorErrors> domains) {
    if (domains != null && !domains.isEmpty()) {
        return domains.stream().map(domain -> toErrorsModel(domain)).collect(Collectors.toList());
    }
    return null;
}

From source file:com.wmw.bank.BankValidator.java

public static <T extends Account> T validate(T account) {
    checkNotNull(account, "Account can't be null.");
    checkState(account.getAccountNumber() > 0, "Account number must be grater than 0.");
    checkState(account.getRoutingNumber() > 0, "Routing number must be grater than 0.");
    List<? extends Owner> owners = account.getOwners();
    checkNotNull(owners, "Owners can't be null.");
    checkState(!owners.isEmpty() && !owners.contains(null),
            "At least 1 owner required and every owner can't be null.");
    return account;
}

From source file:com.aurel.track.plugin.JavaScriptPathExtenderAction.java

public static String getDirs() {
    List<File> dirs = PluginUtils.getJavaScriptExtensionDirs();
    if (dirs == null || dirs.isEmpty()) {
        return "";
    }/*from  w w w.ja va  2s  . c o  m*/
    StringBuffer pathMappings = new StringBuffer();
    for (File dir : dirs) {
        String nameSpace = dir.getName();
        String path = dir.getAbsolutePath();
        //for ex. if a plugin name is 'reportPlugin' then: Ext.Loader.setPath('reportPlugin', 'loadJavaScript!load.action?file=reportPlugin/js');
        //that means all js files defined in plugin should be defined as Ext.define('reportPlugin.<ReportConfigJSName>',{...})

        pathMappings.append("Ext.Loader.setPath('" + nameSpace + "', 'loadJavaScript.action?pluginDir="
                + nameSpace + "&file=');\n");
    }
    return pathMappings.toString();
}

From source file:gdv.xport.Main.java

/**
 * Prints the violations.//from   w  ww . j av  a 2s .c  o m
 *
 * @param violations
 *            the violations
 */
private static void printViolations(final List<ConstraintViolation> violations) {
    if (violations.isEmpty()) {
        System.out.println("keine Datensatz-Verletzung gefunden");
    } else {
        for (ConstraintViolation violation : violations) {
            System.err.println(violation.getValidatedObject() + ": " + violation.getMessage());
        }
    }
}