Example usage for com.google.common.base Preconditions checkArgument

Introduction

In this page you can find the example usage for com.google.common.base Preconditions checkArgument.

Prototype

public static void checkArgument(boolean expression, @Nullable Object errorMessage)

Source Link

Document

Ensures the truth of an expression involving one or more parameters to the calling method.

Usage

From source file:com.cloudera.nav.sdk.model.CustomIdGenerator.java

public static String generateIdentity(String... args) {
    for (String s : args) {
        Preconditions.checkArgument(!StringUtils.isEmpty(s), "An identity component must not be null or empty");
    }//from   w w w . j av  a2s.  c  om
    return MD5IdGenerator.generateIdentity(args);
}

From source file:io.pravega.common.MathHelpers.java

public static long minMax(long value, long min, long max) {
    Preconditions.checkArgument(min <= max, "min must be less than or equal to max");
    return Math.max(Math.min(value, max), min);
}

From source file:com.cloudera.nav.sdk.model.HiveIdGenerator.java

public static String generateTableId(String sourceId, String databaseName, String tableName) {
    Preconditions.checkArgument(
            !StringUtils.isEmpty(sourceId) && !StringUtils.isEmpty(databaseName)
                    && !StringUtils.isEmpty(tableName),
            "SourceId, database name, and table name must be supplied to " + "generate Hive table identity");
    return MD5IdGenerator.generateIdentity(sourceId, databaseName.toUpperCase(), tableName.toUpperCase());
}

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

public static List<PkgLocalization> findForPkg(ObjectContext context, Pkg pkg) {
    Preconditions.checkArgument(null != context, "the context must be supplied");
    Preconditions.checkArgument(null != pkg, "the pkg must be supplied");
    return ObjectSelect.query(PkgLocalization.class).where(PKG.eq(pkg)).sharedCache()
            .cacheGroup(HaikuDepot.CacheGroup.PKG_LOCALIZATION.name()).select(context);
}

From source file:com.cloudera.nav.plugin.model.HiveIdGenerator.java

public static String generateTableId(String sourceId, String databaseName, String tableName) {
    Preconditions.checkArgument(
            !StringUtils.isEmpty(sourceId) && !StringUtils.isEmpty(databaseName)
                    && !StringUtils.isEmpty(tableName),
            "SourceId, database name, and table name must be supplied to " + "generate Hive table identity");
    return MD5IdGenerator.generateIdentity(sourceId, databaseName, tableName);
}

From source file:co.cask.cdap.data2.transaction.stream.leveldb.LevelDBNameConverter.java

public static TableId from(String levelDBTableName) {
    Preconditions.checkArgument(levelDBTableName != null, "Table name should not be null.");
    // remove table-prefix
    String[] tablePrefixSplit = levelDBTableName.split("_");
    Preconditions.checkArgument(tablePrefixSplit.length > 1, "Missing table-prefix");
    String[] tableNameParts = tablePrefixSplit[1].split("\\.", 2);
    Preconditions.checkArgument(tableNameParts.length > 1, "Missing namespace or tableName");
    return TableId.from(tableNameParts[0], tableNameParts[1]);
}

From source file:app.philm.in.util.IntUtils.java

public static int weightedAverage(int... values) {
    Preconditions.checkArgument(values.length % 2 == 0, "values must have a multiples of 2");

    int sum = 0;/* ww w . j a  v  a 2 s .  c o  m*/
    int sumWeight = 0;

    for (int i = 0; i < values.length; i += 2) {
        int value = values[i];
        int weight = values[i + 1];

        sum += (value * weight);
        sumWeight += weight;
    }

    return sum / sumWeight;
}

From source file:org.opendaylight.controller.config.facade.xml.util.Util.java

public static void checkType(final Object value, final Class<?> clazz) {
    Preconditions.checkArgument(clazz.isAssignableFrom(value.getClass()),
            "Unexpected type " + value.getClass() + " should be " + clazz + " of " + value);
}

From source file:app.philm.in.util.FloatUtils.java

public static float weightedAverage(float... values) {
    Preconditions.checkArgument(values.length % 2 == 0, "values must have a multiples of 2");

    float sum = 0;
    float sumWeight = 0;

    for (int i = 0; i < values.length; i += 2) {
        float value = values[i];
        float weight = values[i + 1];

        sum += (value * weight);//  w  w  w .  j  av a 2s .  co m
        sumWeight += weight;
    }

    return sum / sumWeight;
}

From source file:rus.cpuinfo.Util.ConverterUtil.java

@NonNull
public static String convertFromKHzToMHz(final String KHz) {

    Preconditions.checkArgument(NumberUtils.isCreatable(KHz), "KHz must be a numeric value");
    return String.format(Locale.getDefault(), "%d", convertFromKHzToMHz(Integer.parseInt(KHz)));
}