Example usage for com.google.common.collect ImmutableList builder

List of usage examples for com.google.common.collect ImmutableList builder

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Introduction

In this page you can find the example usage for com.google.common.collect ImmutableList builder.

Prototype

public static <E> Builder<E> builder()

Source Link

Usage

From source file:ru.adios.budgeter.util.Immutables.java

@SuppressWarnings("unchecked")
public static <T> Collector<T, ImmutableList.Builder<T>, ImmutableList<T>> getListCollector() {
    return Collectors.of((Supplier<ImmutableList.Builder<T>>) LIST_BUILDER_SUPPLIER,
            new BiConsumer<ImmutableList.Builder<T>, T>() {
                @Override//from   w ww  .java  2  s.  c o m
                public void accept(ImmutableList.Builder<T> b, T t) {
                    b.add(t);
                }
            }, new BinaryOperator<ImmutableList.Builder<T>>() {
                @Override
                public ImmutableList.Builder<T> apply(ImmutableList.Builder<T> builder1,
                        ImmutableList.Builder<T> builder2) {
                    return builder1.addAll(builder2.build());
                }
            }, new Function<ImmutableList.Builder<T>, ImmutableList<T>>() {
                @Override
                public ImmutableList<T> apply(ImmutableList.Builder<T> builder) {
                    return builder.build();
                }
            });
}

From source file:org.caleydo.core.util.ExtensionUtils.java

/**
 * simple wrapper for creating all implementation instances of a given extension point
 *
 * @param extensionPoint//from  w  ww. java 2s  .c  o  m
 * @param property
 *            the property which holds the class name, e.g. class
 * @param type
 *            the expected class type
 * @return
 */
public static <T> List<T> findImplementation(String extensionPoint, String property, Class<T> type) {
    if (noRegistry())
        return ImmutableList.of();
    Builder<T> factories = ImmutableList.builder();
    try {

        for (IConfigurationElement elem : RegistryFactory.getRegistry()
                .getConfigurationElementsFor(extensionPoint)) {
            final Object o = elem.createExecutableExtension(property);
            if (type.isInstance(o))
                factories.add(type.cast(o));
        }
    } catch (CoreException e) {
        log.error("can't find implementations of " + extensionPoint + " : " + property, e);
    }
    return factories.build();
}

From source file:com.spotify.heroic.suggest.WriteSuggest.java

public static Collector<WriteSuggest, WriteSuggest> reduce() {
    return requests -> {
        final ImmutableList.Builder<RequestError> errors = ImmutableList.builder();
        final ImmutableList.Builder<Long> times = ImmutableList.builder();

        for (final WriteSuggest r : requests) {
            errors.addAll(r.getErrors());
            times.addAll(r.getTimes());/*from w  w w.  ja  va 2s  .c o  m*/
        }

        return new WriteSuggest(errors.build(), times.build(), ImmutableList.of());
    };
}

From source file:fr.inria.eventcloud.utils.RDFReader.java

public static List<Quadruple> read(String uri, final boolean checkQuadrupleType,
        final boolean parseQuadrupleMetaInformation) {
    final Builder<Quadruple> quadruples = ImmutableList.builder();

    read(uri, new Callback<Quadruple>() {

        @Override/* w  w  w.j a v a 2  s  . c  o  m*/
        public void execute(Quadruple quadruple) {
            quadruples.add(quadruple);
        }

    }, checkQuadrupleType, parseQuadrupleMetaInformation);

    return quadruples.build();
}

From source file:com.google.testing.junit.runner.junit4.JUnit4Options.java

/**
 * Parses the given array of arguments and returns a JUnit4Options
 * object representing the parsed arguments.
 *///w w w  .j a v  a2s  .  c o  m
static JUnit4Options parse(Map<String, String> envVars, List<String> args) {
    ImmutableList.Builder<String> unparsedArgsBuilder = ImmutableList.builder();
    Map<String, String> optionsMap = Maps.newHashMap();

    optionsMap.put(TEST_INCLUDE_FILTER_OPTION, null);
    optionsMap.put(TEST_EXCLUDE_FILTER_OPTION, null);

    for (Iterator<String> it = args.iterator(); it.hasNext();) {
        String arg = it.next();
        int indexOfEquals = arg.indexOf("=");

        if (indexOfEquals > 0) {
            String optionName = arg.substring(0, indexOfEquals);
            if (optionsMap.containsKey(optionName)) {
                optionsMap.put(optionName, arg.substring(indexOfEquals + 1));
                continue;
            }
        } else if (optionsMap.containsKey(arg)) {
            // next argument is the regexp
            if (!it.hasNext()) {
                throw new RuntimeException("No filter expression specified after " + arg);
            }
            optionsMap.put(arg, it.next());
            continue;
        }
        unparsedArgsBuilder.add(arg);
    }
    // If TESTBRIDGE_TEST_ONLY is set in the environment, forward it to the
    // --test_filter flag.
    String testFilter = envVars.get(TESTBRIDGE_TEST_ONLY);
    if (testFilter != null && optionsMap.get(TEST_INCLUDE_FILTER_OPTION) == null) {
        optionsMap.put(TEST_INCLUDE_FILTER_OPTION, testFilter);
    }

    ImmutableList<String> unparsedArgs = unparsedArgsBuilder.build();
    return new JUnit4Options(optionsMap.get(TEST_INCLUDE_FILTER_OPTION),
            optionsMap.get(TEST_EXCLUDE_FILTER_OPTION), unparsedArgs.toArray(new String[unparsedArgs.size()]));
}

From source file:org.prebake.channel.Commands.java

public static Commands fromJson(Path clientRoot, JsonSource src, @Nullable OutputStream response)
        throws IOException {
    ImmutableList.Builder<Command> cmds = ImmutableList.builder();
    src.expect("[");
    if (!src.check("]")) {
        do {/*w w w  .  j  ava  2  s  .c om*/
            cmds.add(Command.fromJson(src, clientRoot));
        } while (src.check(","));
        src.expect("]");
    }
    return new Commands(cmds.build(), response);
}

From source file:net.techcable.pineapple.collect.ImmutableLists.java

@Nonnull
public static <T, U> ImmutableList<U> transform(List<T> list, Function<T, U> transformer) {
    ImmutableList.Builder<U> resultBuilder = builder(checkNotNull(list, "Null list").size());
    list.forEach((oldElement) -> {//from  w  ww .  j  a va 2 s .co m
        U newElement = checkNotNull(transformer, "Null transformer").apply(oldElement);
        if (newElement == null)
            throw new NullPointerException(
                    "Transformer  " + transformer.getClass().getTypeName() + " returned null.");
        resultBuilder.add(newElement);
    });
    return resultBuilder.build();
}

From source file:com.facebook.presto.sql.relational.Expressions.java

public static List<RowExpression> subExpressions(Iterable<RowExpression> expressions) {
    final ImmutableList.Builder<RowExpression> builder = ImmutableList.builder();

    for (RowExpression expression : expressions) {
        expression.accept(new RowExpressionVisitor<Void, Void>() {
            @Override// www. jav a2  s  . c o m
            public Void visitCall(CallExpression call, Void context) {
                builder.add(call);
                for (RowExpression argument : call.getArguments()) {
                    argument.accept(this, context);
                }
                return null;
            }

            @Override
            public Void visitInputReference(InputReferenceExpression reference, Void context) {
                builder.add(reference);
                return null;
            }

            @Override
            public Void visitConstant(ConstantExpression literal, Void context) {
                builder.add(literal);
                return null;
            }
        }, null);
    }

    return builder.build();
}

From source file:rx.transformer.GuavaTransformers.java

/**
 * Returns a Transformer&lt;T,ImmutableList&lt;T&gt;&gt that maps an Observable&lt;T&gt; to an Observable&lt;ImmutableList&lt;T&gt;&gt;
 *///from   ww  w.ja v  a  2  s .com
public static <T> Observable.Transformer<T, ImmutableList<T>> toImmutableList() {
    return new Observable.Transformer<T, ImmutableList<T>>() {
        @Override
        public Observable<ImmutableList<T>> call(Observable<T> source) {
            return source.collect(new Func0<ImmutableList.Builder<T>>() {
                @Override
                public ImmutableList.Builder<T> call() {
                    return ImmutableList.builder();
                }
            }, new Action2<ImmutableList.Builder<T>, T>() {
                @Override
                public void call(ImmutableList.Builder<T> builder, T t) {
                    builder.add(t);
                }
            }).map(new Func1<ImmutableList.Builder<T>, ImmutableList<T>>() {
                @Override
                public ImmutableList<T> call(ImmutableList.Builder<T> builder) {
                    return builder.build();
                }
            });
        }
    };
}

From source file:io.prestosql.sql.relational.Expressions.java

public static List<RowExpression> subExpressions(Iterable<RowExpression> expressions) {
    final ImmutableList.Builder<RowExpression> builder = ImmutableList.builder();

    for (RowExpression expression : expressions) {
        expression.accept(new RowExpressionVisitor<Void, Void>() {
            @Override// w w  w . j av a  2 s. com
            public Void visitCall(CallExpression call, Void context) {
                builder.add(call);
                for (RowExpression argument : call.getArguments()) {
                    argument.accept(this, context);
                }
                return null;
            }

            @Override
            public Void visitInputReference(InputReferenceExpression reference, Void context) {
                builder.add(reference);
                return null;
            }

            @Override
            public Void visitConstant(ConstantExpression literal, Void context) {
                builder.add(literal);
                return null;
            }

            @Override
            public Void visitLambda(LambdaDefinitionExpression lambda, Void context) {
                builder.add(lambda);
                lambda.getBody().accept(this, context);
                return null;
            }

            @Override
            public Void visitVariableReference(VariableReferenceExpression reference, Void context) {
                builder.add(reference);
                return null;
            }
        }, null);
    }

    return builder.build();
}