Example usage for com.google.common.collect Iterators singletonIterator

Introduction

In this page you can find the example usage for com.google.common.collect Iterators singletonIterator.

Prototype

public static <T> UnmodifiableIterator<T> singletonIterator(@Nullable final T value)

Source Link

Document

Returns an iterator containing only value .

Usage

From source file:org.trimou.engine.interpolation.BracketDotKeySplitter.java

@Override
public Iterator<String> split(final String key) {

    if (key.equals(Strings.DOT)) {
        return Iterators.singletonIterator(Strings.DOT);
    }//  w  w  w  .  java 2 s.  c  om
    if (key.equals(Strings.THIS)) {
        return Iterators.singletonIterator(Strings.THIS);
    }

    boolean stringLiteral = false;
    boolean separator = false;
    List<String> parts = new ArrayList<String>();
    StringBuilder buffer = new StringBuilder();

    for (int i = 0; i < key.length(); i++) {
        if (isSeparator(key.charAt(i))) {
            // Only process the first separator - adjacent separators are
            // ignored
            if (!separator) {
                if (!stringLiteral) {
                    if (buffer.length() > 0) {
                        parts.add(buffer.toString());
                        buffer = new StringBuilder();
                    }
                    separator = true;
                } else {
                    buffer.append(key.charAt(i));
                }
            }
        } else {
            // Non-separator char
            if (Strings.isStringLiteralSeparator(key.charAt(i))) {
                stringLiteral = !stringLiteral;
            } else {
                buffer.append(key.charAt(i));
            }
            separator = false;
        }
    }

    if (buffer.length() > 0) {
        parts.add(buffer.toString());
    }
    return parts.iterator();
}

From source file:com.google.devtools.build.lib.collect.nestedset.SingleDirectNestedSet.java

@Override
public Iterator<E> iterator() {
    return Iterators.singletonIterator(e);
}

From source file:jhc.redsniff.internal.core.Item.java

@Override
public Iterator<E> iterator() {
    return Iterators.singletonIterator(item);
}

From source file:org.sonar.gherkin.tree.impl.AbstractPrefixTreeImpl.java

@Override
public Iterator<Tree> childrenIterator() {
    return Iterators.singletonIterator(keyword);
}

From source file:org.eclipse.xtext.common.types.access.impl.InnerClassNameVariants.java

public Iterator<String> variantsFor(final String base) {
    //if (1==1) return Lists.newArrayList(base).iterator();
    // System.out.println("xxxxxx yyyy " + base);
    int[] positionsOfDollar = getPositionsOfDollar(base);
    if (positionsOfDollar.length == 0) {
        return Iterators.singletonIterator(base);
    }/*from ww  w . j  av a  2 s .  c  o m*/

    int numberPositionsOfDollar = positionsOfDollar.length;
    int numberOfCombinations = (int) Math.pow(2, numberPositionsOfDollar);
    /*
     * turns the given value to a int[] binary representation
     * 
     * 0 -> [0,0,0] 1 -> [1,0,0 7 -> [1,1,1]
     */
    IntFunction<int[]> shouldElementAtPositionBeReplaced = new IntFunction<int[]>() {

        @Override
        public int[] apply(final int value) {
            int[] shouldElementBeReplaced = new int[numberPositionsOfDollar];
            int valueCopy = value;

            for (int c = 0; c < shouldElementBeReplaced.length; c++) {
                if (valueCopy % 2 == 1) {
                    shouldElementBeReplaced[c] = 1;
                }
                valueCopy = valueCopy / 2;
            }
            return shouldElementBeReplaced;
        }
    };
    /*
     * takes the given positon array to decide if a positon shall be
     * replaced or not [0,1,0] => replace the second occurrence of '$' only
     */
    Function<int[], String> replaceAtPositions = new Function<int[], String>() {

        @Override
        public String apply(int[] shouldElementBeReplaced) {
            StringBuilder baseAsBuilder = new StringBuilder(base);

            for (int position = 0; position < shouldElementBeReplaced.length; position++) {
                int p = shouldElementBeReplaced[position];
                if (p > 0) {
                    baseAsBuilder.setCharAt(positionsOfDollar[position], '.');
                }
            }

            return baseAsBuilder.toString();
        }
    };

    Stream<String> resultStream = IntStream.range(0, numberOfCombinations)
            .mapToObj(shouldElementAtPositionBeReplaced).map(replaceAtPositions);
    return resultStream.iterator();
}

From source file:com.synflow.models.util.dom.SimpleNamespaceContext.java

@Override
public Iterator<?> getPrefixes(String namespaceURI) {
    return Iterators.singletonIterator(getPrefix(namespaceURI));
}

From source file:org.sonar.json.tree.impl.LiteralTreeImpl.java

@Override
public Iterator<Tree> childrenIterator() {
    return Iterators.singletonIterator(value);
}

From source file:ninja.leaping.permissionsex.util.glob.UnitNode.java

@Override
public Iterator<String> iterator() {
    return Iterators.singletonIterator(value);
}

From source file:io.crate.core.collections.SingleRowBucket.java

@Override
public Iterator<Row> iterator() {
    return Iterators.singletonIterator(row);
}

From source file:org.eclipse.incquery.runtime.localsearch.operations.extend.ExtendConstant.java

@Override
public void onInitialize(MatchingFrame frame, ISearchContext context) throws LocalSearchException {
    it = Iterators.singletonIterator(value);
}