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

Introduction

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

Prototype

@CheckReturnValue
public static <F, T> Iterable<T> transform(final Iterable<F> fromIterable,
        final Function<? super F, ? extends T> function)

Source Link

Document

Returns an iterable that applies function to each element of fromIterable .

Usage

From source file:com.pets.core.petstore.domain.mappers.PetModelMapper.java

public static PetModel transform(Pet pet) {
    if (pet == null) {
        return null;
    }/*from  w w  w . j  a va  2s .c  o m*/
    PetModel petModel = new PetModel(pet.getId());

    petModel.setName(pet.getName()).setStatus(pet.getStatus() == null ? null : pet.getStatus().toString())
            .setCategoryName(pet.getCategory() == null ? null : pet.getCategory().getName());

    List<Tag> tags = pet.getTags();
    if (tags != null) {
        final List<String> tagNames = Lists
                .newArrayList(Iterables.transform(pet.getTags(), new Function<Tag, String>() {
                    @Override
                    public String apply(final Tag tag) {
                        return tag.getName();
                    }
                }));
        petModel.setTagNames(tagNames);
    }

    // Do some business logic (that should have been on the server side)
    // and filter out non-valid photo URLs
    List<String> urls = pet.getPhotoUrls();
    if (urls != null) {
        final List<String> photoUrls = Lists.newArrayList(Iterables.filter(urls, new Predicate<String>() {
            @Override
            public boolean apply(String url) {
                return url.startsWith("http://") || url.startsWith("https://");
            }
        }));
        petModel.setPhotoUrls(photoUrls);
    }

    return petModel;
}

From source file:org.apache.marmotta.platform.core.webservices.resource.ResourceWebServiceHelper.java

public static String appendMetaTypes(List<String> datamimes) {
    return Joiner.on(',').join(Iterables.transform(datamimes, new Function<String, String>() {
        @Override/*from www .  j a  v  a2  s. c  om*/
        public String apply(String input) {
            return input + ";rel=meta";
        }
    }));
}

From source file:com.google.devtools.build.xcode.util.Interspersing.java

/**
 * Prepends {@code what} to each string in {@code sequence}, returning a lazy sequence of the 
 * same length./*from   ww  w .  j a v  a2s  .c  o  m*/
 */
public static Iterable<String> prependEach(final String what, Iterable<String> sequence) {
    Preconditions.checkNotNull(what);
    return Iterables.transform(sequence, new Function<String, String>() {
        @Override
        public String apply(String input) {
            return what + input;
        }
    });
}

From source file:com.google.googlejavaformat.java.FormatterException.java

public static FormatterException fromJavacDiagnostics(
        Iterable<Diagnostic<? extends JavaFileObject>> diagnostics) {
    return new FormatterException(Iterables.transform(diagnostics, d -> toFormatterDiagnostic(d)));
}

From source file:gg.uhc.fancyfreeze.commands.FunctionUtil.java

public static Iterable<String> getNamesOfAllOnline() {
    return Iterables.transform(Bukkit.getOnlinePlayers(), GET_PLAYER_NAME);
}

From source file:uk.ac.ed.inf.ace.utils.Utilities.java

public static <C> Iterable<C> extractConfigs(Iterable<JAXBElement<? extends C>> configs) {
    if (configs == null) {
        return null;
    }//from   w  ww.  j a  va2  s  .c  o  m

    return Iterables.transform(configs, new Function<JAXBElement<? extends C>, C>() {
        @Override
        public C apply(JAXBElement<? extends C> element) {
            return element.getValue();
        }
    });
}

From source file:com.atlassian.jira.rest.client.api.domain.EntityHelper.java

public static Iterable<String> toNamesList(Iterable<? extends NamedEntity> items) {
    return Iterables.transform(items, GET_ENTITY_NAME_FUNCTION);
}

From source file:org.sonar.server.computation.component.ComponentTreeBuilder.java

private static Iterable<Component> buildChildren(final BatchReportReader reportReader,
        final BatchReport.Component component) {
    return Iterables.transform(component.getChildRefList(), new Function<Integer, Component>() {
        @Override/*from w w  w . j a  va  2 s  .  co m*/
        public Component apply(@Nonnull Integer componentRef) {
            BatchReport.Component component = reportReader.readComponent(componentRef);
            return newComponent(reportReader, component);
        }
    });
}

From source file:com.yahoo.yqlplus.engine.internal.java.backends.java.Chooser.java

public Iterable<List<T>> chooseN(int n, List<T> input) {
    if (n == input.size()) {
        final List<List<T>> result = Lists.newArrayListWithCapacity(1);
        final List<T> copy = Lists.newArrayList(input);
        result.add(copy);/*from   www. j  a  v  a2 s .com*/
        return result;
    } else if (n == 1) {
        return Iterables.transform(input, new Function<T, List<T>>() {

            @Override
            public List<T> apply(T input) {
                final List<T> res = Lists.newArrayListWithCapacity(1);
                res.add(input);
                return res;
            }
        });
    } else if (n > input.size()) {
        return ImmutableList.of();
    } else {
        // should use an exact sized list, or better yet don't materialize the list
        List<List<T>> output = Lists.newArrayList();
        chooseN(n, 0, Lists.<T>newArrayListWithCapacity(n), input, output);
        return output;
    }
}

From source file:com.google.inject.Asserts.java

/**
 * Returns the String that would appear in an error message for this chain of classes 
 * as modules./* ww w . ja  va  2  s .  c om*/
 */
public static String asModuleChain(Class... classes) {
    return Joiner.on(" -> ").appendTo(new StringBuilder(" (via modules: "),
            Iterables.transform(ImmutableList.copyOf(classes), new Function<Class, String>() {
                @Override
                public String apply(Class input) {
                    return input.getName();
                }
            })).append(")").toString();
}