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:it.f2informatica.core.gateway.EntityToModelConverter.java

public Iterable<T> convertIterable(Iterable<S> sourceIterable) {
    return Iterables.transform(sourceIterable, new Function<S, T>() {
        @Override//www .ja  va  2s  .co  m
        public T apply(S source) {
            return convert(source);
        }
    });
}

From source file:com.yahoo.yqlplus.engine.internal.code.CodeFormatter.java

public static String emitLiteral(Object value) {
    if (value instanceof Enum) {
        Enum val = (Enum) value;
        return String.format("%s.%s", val.getDeclaringClass().getName(), val.name());
    } else if (value instanceof Long) {
        return String.format("%dL", (Long) value);
    } else if (value instanceof Float) {
        // the cast here silences the IDE, obviously it's being cast right back to Object in the call
        return String.format("%ff", (Float) value);
    } else if (value instanceof Number) {
        return value.toString();
    }/*from   w w w.  jav a2 s. c o m*/

    if (value.getClass().isArray()) {
        // the only kind of array we support is array of object
        Object[] arr = (Object[]) value;
        if (arr.length == 0) {
            return "new Object[0]";
        } else {
            return String.format("new Object[%d] { %s }", arr.length, Joiner.on(", ")
                    .join(Iterables.transform(Arrays.asList(arr), new Function<Object, Object>() {
                        @Nullable
                        @Override
                        public Object apply(Object input) {
                            return emitLiteral(input);
                        }
                    })));
        }
    }
    StringWriter out = new StringWriter();
    try {
        // we're relying on the fact that Java and JSON literals for scalar types look the same
        JsonGenerator gen = JSON_FACTORY.createGenerator(out);
        gen.writeObject(value);
        gen.flush();
        return out.toString();
    } catch (IOException e) {
        // should never happen with a stringwriter
        throw new RuntimeException(e);
    }
}

From source file:org.jclouds.vcloud.director.v1_5.VCloudDirectorException.java

private static String message(Error error, String from) {
    Iterable<String> words = Iterables.transform(Splitter.on('_').split(error.getMinorErrorCode()),
            new Function<String, String>() {
                @Override//from  w  ww.jav a2  s  .co  m
                public String apply(String input) {
                    return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, input);
                }
            });
    return String.format(MSG_FMT, Joiner.on(' ').join(words), error.getMajorErrorCode(), from,
            error.getMessage());
}

From source file:org.jclouds.aliyun.ecs.domain.options.DeleteKeyPairOptions.java

public DeleteKeyPairOptions keyPairNames(String... keyPairNames) {
    String keyPairNamesAsString = Joiner.on(",")
            .join(Iterables.transform(Arrays.asList(keyPairNames), new Function<String, String>() {
                @Override//from  w w  w. j a  v  a  2  s  . c  o m
                public String apply(String s) {
                    return new StringBuilder(s.length() + 1).append('"').append(s).append('"').toString();
                }
            }));
    queryParameters.put(KEYPAIR_NAMES_PARAM, String.format("[%s]", keyPairNamesAsString));
    return this;
}

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

@SuppressWarnings("unused")
public static <T> Iterable<String> toStringIdList(Iterable<IdentifiableEntity<T>> items) {
    return Iterables.transform(items, new Function<IdentifiableEntity<T>, String>() {
        @Override/*from  w  w w  .  java2  s .c om*/
        public String apply(IdentifiableEntity<T> from) {
            return from.getId() == null ? null : from.getId().toString();
        }
    });
}

From source file:org.jclouds.virtualbox.functions.MacAddressToBSD.java

@Override
public String apply(String macAddress) {
    checkArgument(macAddress.length() == 17);
    return Joiner.on(":")
            .join(Iterables.transform(Splitter.on(":").split(macAddress), new Function<String, String>() {
                @Override//from   w  ww .  ja v  a  2 s.com
                public String apply(String addressPart) {
                    if (addressPart.equals("00"))
                        return "0";
                    if (addressPart.startsWith("0"))
                        return addressPart.substring(1);

                    return addressPart;
                }
            }));
}

From source file:org.eclipse.xtext.linking.lazy.LazyLinkingTestLanguageScopeProvider.java

public IScope scope_Property(Type t, EReference ref) {
    return new SimpleScope(IScope.NULLSCOPE,
            Iterables.transform(t.getExtends().getProperties(), new Function<Property, IEObjectDescription>() {
                @Override// ww w . j  av a2 s .  com
                public IEObjectDescription apply(Property param) {
                    return EObjectDescription.create(QualifiedName.create(param.getName()), param);
                }
            }));
}

From source file:org.jclouds.elasticstack.functions.ListOfMapsToListOfKeyValuesDelimitedByBlankLines.java

@Override
public String apply(Iterable<Map<String, String>> from) {
    return Joiner.on("\n\n").join(Iterables.transform(from, new Function<Map<String, String>, String>() {

        @Override/*www.jav  a 2  s  . c o m*/
        public String apply(Map<String, String> from) {
            return Joiner.on('\n').withKeyValueSeparator(" ")
                    .join(Maps.transformValues(from, new Function<String, String>() {

                        @Override
                        public String apply(String from) {
                            return from.replace("\n", "\\n");
                        }

                    }));
        }

    }));
}

From source file:org.trancecode.concurrent.TcFutures.java

public static <T> Iterable<Future<T>> submit(final ExecutorService executor,
        final Iterable<Callable<T>> tasks) {
    final Function<Callable<T>, Future<T>> submitFunction = CallableFunctions.submit(executor);
    return Iterables.transform(tasks, submitFunction);
}

From source file:net.hillsdon.reviki.wiki.macros.SearchMacro.java

@Override
protected Collection<String> getPages(final String remainder) throws Exception {
    String query = escapeQueryForSearch(remainder);
    return ImmutableList
            .copyOf(Iterables.transform(_searchEngine.search(query, false, true), SearchMatch.TO_PAGE_NAME));
}