Example usage for com.google.common.collect Iterables concat

Introduction

In this page you can find the example usage for com.google.common.collect Iterables concat.

Prototype

public static <T> Iterable<T> concat(Iterable<? extends T> a, Iterable<? extends T> b)

Source Link

Document

Combines two iterables into a single iterable.

Usage

From source file:com.opengamma.engine.depgraph.SimpleResolutionFailureVisitor.java

@Override
protected List<ResolutionFailure> visitFunction(ValueRequirement valueRequirement, String function,
        ValueSpecification desiredOutput, Map<ValueSpecification, ValueRequirement> satisfied,
        Set<ResolutionFailure> unsatisfied, Set<ResolutionFailure> unsatisfiedAdditional) {
    return ImmutableList.copyOf(Iterables.concat(unsatisfied, unsatisfiedAdditional));
}

From source file:org.summer.dsl.xbase.scoping.batch.LocalVariableScope.java

@Override
public Iterable<IEObjectDescription> getElements(final QualifiedName name) {
    Collection<IEObjectDescription> localElements = getLocalElementsByName(name);
    if (localElements.isEmpty())
        return getParent().getElements(name);
    if (looksLikeLocalVariable()) {
        return localElements;
    }/*from  w  w w.j  a v  a2  s . c o m*/
    Iterable<IEObjectDescription> parentElements = getParentElements(
            new Provider<Iterable<IEObjectDescription>>() {
                public Iterable<IEObjectDescription> get() {
                    return getParent().getElements(name);
                }
            });
    // TODO evaluate optimizing this by avoiding the concat thing and doing something smarter than the ParentIterable 
    Iterable<IEObjectDescription> result = Iterables.concat(localElements, parentElements);
    return result;
}

From source file:com.getbase.android.schema.MigrationsHelper.java

public void performMigrations(SQLiteDatabase db, TableMigration... migrations) {
    for (TableMigration migration : migrations) {
        final String tempTable = "tmp_" + tempTableIndex++;
        db.execSQL("ALTER TABLE " + migration.tableName + " RENAME TO " + tempTable);
        ImmutableSet<String> oldColumns = getColumns(db, tempTable);

        db.execSQL(migration.createTableStatement);
        final String tempNewTable = "tmp_" + tempTableIndex++;
        db.execSQL("ALTER TABLE " + migration.tableName + " RENAME TO " + tempNewTable);
        ImmutableSet<String> newColumns = getColumns(db, tempNewTable);

        db.execSQL("ALTER TABLE " + tempNewTable + " RENAME TO " + migration.tableName);

        Set<String> commonColumns = Sets.intersection(oldColumns, newColumns);
        Set<String> droppedColumns = Sets.difference(oldColumns, newColumns);
        if (!droppedColumns.isEmpty()) {
            Log.w(TAG, "Dropping columns " + Joiner.on(",").join(droppedColumns) + " during migration of "
                    + migration.tableName);
        }/*from  w  w w  .  ja v a  2 s .co  m*/

        Set<String> addedColumns = Sets.difference(Sets.difference(newColumns, oldColumns),
                migration.mappings.keySet());
        if (!addedColumns.isEmpty()) {
            Log.w(TAG, "Will try to add new columns " + Joiner.on(",").join(addedColumns)
                    + " during migration of " + migration.tableName);
        }

        SetView<String> unmappedColumns = Sets.difference(commonColumns, migration.mappings.keySet());
        String insertColumnsString = Joiner.on(",")
                .join(Iterables.concat(unmappedColumns, migration.mappings.keySet()));
        String selectColumnsString = Joiner.on(",")
                .join(Iterables.concat(unmappedColumns, migration.mappings.values()));

        db.execSQL("INSERT INTO " + migration.tableName + "(" + insertColumnsString + ") SELECT "
                + selectColumnsString + " FROM " + tempTable);
        db.execSQL("DROP TABLE " + tempTable);
    }
}

From source file:org.grouplens.lenskit.eval.traintest.MeasurementSuite.java

public Iterable<Metric<TrainTestEvalTask>> getAllMetrics() {
    return Iterables.concat(testUserMetrics, modelMetrics);
}

From source file:org.apache.jackrabbit.oak.plugins.index.nodetype.NodeTypeIndexLookup.java

/**
 * Returns the paths that match the given node types.
 *
 * @param filter the filter (used for logging)
 * @return the matched paths (the result might contain duplicate entries)
 *///from   w  ww.j a  v a 2  s.  c  o m
public Iterable<String> query(Filter filter) {
    PropertyIndexLookup lookup = new PropertyIndexLookup(root);
    return Iterables.concat(lookup.query(filter, JCR_PRIMARYTYPE, newName(filter.getPrimaryTypes())),
            lookup.query(filter, JCR_MIXINTYPES, newName(filter.getMixinTypes())));
}

From source file:org.apache.cassandra.stress.generate.PartitionGenerator.java

public PartitionGenerator(List<Generator> partitionKey, List<Generator> clusteringComponents,
        List<Generator> valueComponents, Order order) {
    this.partitionKey = partitionKey;
    this.clusteringComponents = clusteringComponents;
    this.valueComponents = valueComponents;
    this.order = order;
    this.clusteringDescendantAverages = new int[clusteringComponents.size()];
    this.clusteringComponentAverages = new int[clusteringComponents.size()];
    for (int i = 0; i < clusteringComponentAverages.length; i++)
        clusteringComponentAverages[i] = (int) clusteringComponents.get(i).clusteringDistribution.average();
    for (int i = clusteringDescendantAverages.length - 1; i >= 0; i--)
        clusteringDescendantAverages[i] = (int) (i < (clusteringDescendantAverages.length - 1)
                ? clusteringComponentAverages[i + 1] * clusteringDescendantAverages[i + 1]
                : 1);/*from  ww w.  ja  v  a  2 s . c  o  m*/
    double maxRowCount = 1d;
    double minRowCount = 1d;
    for (Generator component : clusteringComponents) {
        maxRowCount *= component.clusteringDistribution.maxValue();
        minRowCount *= component.clusteringDistribution.minValue();
    }
    this.maxRowCount = maxRowCount;
    this.minRowCount = minRowCount;
    this.indexMap = new HashMap<>();
    int i = 0;
    for (Generator generator : partitionKey)
        indexMap.put(generator.name, --i);
    i = 0;
    for (Generator generator : Iterables.concat(clusteringComponents, valueComponents))
        indexMap.put(generator.name, i++);
}

From source file:org.obm.push.mail.BodyPreferencePolicy.java

protected static Comparator<FetchInstruction> betterFitComparator(final List<BodyPreference> bodyPreferences) {
    final List<MSEmailBodyType> preferences = FluentIterable
            .from(Iterables.concat(bodyPreferences, DEFAULT_BODY_PREFERENCES))
            .transform(bodyPreferenceToMSEmailBodyType()).toList();
    final List<MSEmailBodyType> clientPreferences = FluentIterable.from(bodyPreferences)
            .transform(bodyPreferenceToMSEmailBodyType()).toList();

    return new Comparator<FetchInstruction>() {

        private int computeWeight(FetchInstruction instruction) {
            int transformationWeight = instruction.getMailTransformation() == MailTransformation.NONE ? 0 : 1;
            return preferences.indexOf(instruction.getBodyType()) + (preferences.size() * transformationWeight);
        }/*ww  w  .ja  v  a 2 s . c o  m*/

        @Override
        public int compare(FetchInstruction o1, FetchInstruction o2) {
            if (o1.getBodyType().equals(o2.getBodyType())
                    && o1.getMailTransformation().equals(o2.getMailTransformation())) {
                return 0;
            }
            if (o1.getBodyType() == MSEmailBodyType.MIME) {
                return 1;
            } else if (o2.getBodyType() == MSEmailBodyType.MIME) {
                return -1;
            } else if (clientPreferences.contains(o1.getBodyType())
                    && !clientPreferences.contains(o2.getBodyType())) {
                return -1;
            } else if (!clientPreferences.contains(o1.getBodyType())
                    && clientPreferences.contains(o2.getBodyType())) {
                return 1;
            } else {
                return computeWeight(o1) - computeWeight(o2);
            }
        }
    };
}

From source file:com.google.devtools.build.lib.syntax.GlobCriteria.java

/**
 * Constructs a copy of a given glob critera object, with additional exclude patterns added.
 *
 * @param base a glob criteria object to copy. Must be an actual glob
 * @param excludes a list of pattern strings indicating new excludes to provide
 * @return a new glob criteria object which contains the same parameters as {@code base}, with
 *   the additional patterns in {@code excludes} added.
 * @throws IllegalArgumentException if {@code base} is not a glob
 *///  w  ww .  ja  va  2  s  .com
public static GlobCriteria createWithAdditionalExcludes(GlobCriteria base, List<String> excludes) {
    Preconditions.checkArgument(base.isGlob());
    return fromGlobCall(base.include, ImmutableList.copyOf(Iterables.concat(base.exclude, excludes)));
}

From source file:com.sk89q.worldguard.protection.FlagValueCalculator.java

/**
 * Create a new instance.//from  w ww  .j a  va 2  s .co m
 *
 * @param regions a list of applicable regions that must be sorted according to {@link NormativeOrders}
 * @param globalRegion an optional global region (null to not use one)
 */
public FlagValueCalculator(List<ProtectedRegion> regions, @Nullable ProtectedRegion globalRegion) {
    checkNotNull(regions);

    this.regions = regions;
    this.globalRegion = globalRegion;

    if (globalRegion != null) {
        applicable = Iterables.concat(regions, Arrays.asList(globalRegion));
    } else {
        applicable = regions;
    }
}

From source file:org.xrepl.xscript.scoping.EPackageScopeProvider.java

private <T extends EObject> Iterable<T> getAllInstances(Iterable<? extends EPackage> ePackages, Class<T> type) {
    Iterable<T> result = emptyList();
    for (EPackage ePackage : ePackages) {
        List<T> allContents = EcoreUtil2.getAllContentsOfType(ePackage, type);

        result = Iterables.concat(result, allContents);
    }/*from  www .  j a  v  a2 s.c  o m*/
    return result;
}