Examples with Optional java.util.Optional used on opensource projects

Example 31 with Optional

use of java.util.Optional in project buck by facebook.

the class RuleKeyBuilder method setReflectively.

/** Recursively serializes the value. Serialization of the key is handled outside. */
protected RuleKeyBuilder<RULE_KEY> setReflectively(@Nullable Object val) {
    if (val instanceof RuleKeyAppendable) {
        return setAppendableRuleKey((RuleKeyAppendable) val);
    }
    if (val instanceof BuildRule) {
        return setBuildRule((BuildRule) val);
    }
    if (val instanceof Supplier) {
        try (Scope containerScope = scopedHasher.wrapperScope(Wrapper.SUPPLIER)) {
            Object newVal = ((Supplier<?>) val).get();
            return setReflectively(newVal);
        }
    }
    if (val instanceof Optional) {
        Object o = ((Optional<?>) val).orElse(null);
        try (Scope wraperScope = scopedHasher.wrapperScope(Wrapper.OPTIONAL)) {
            return setReflectively(o);
        }
    }
    if (val instanceof Either) {
        Either<?, ?> either = (Either<?, ?>) val;
        if (either.isLeft()) {
            try (Scope wraperScope = scopedHasher.wrapperScope(Wrapper.EITHER_LEFT)) {
                return setReflectively(either.getLeft());
            }
        } else {
            try (Scope wraperScope = scopedHasher.wrapperScope(Wrapper.EITHER_RIGHT)) {
                return setReflectively(either.getRight());
            }
        }
    }
    // Note {@link java.nio.file.Path} implements "Iterable", so we explicitly exclude it here.
    if (val instanceof Iterable && !(val instanceof Path)) {
        try (ContainerScope containerScope = scopedHasher.containerScope(Container.LIST)) {
            for (Object element : (Iterable<?>) val) {
                try (Scope elementScope = containerScope.elementScope()) {
                    setReflectively(element);
                }
            }
            return this;
        }
    }
    if (val instanceof Iterator) {
        Iterator<?> iterator = (Iterator<?>) val;
        try (ContainerScope containerScope = scopedHasher.containerScope(Container.LIST)) {
            while (iterator.hasNext()) {
                try (Scope elementScope = containerScope.elementScope()) {
                    setReflectively(iterator.next());
                }
            }
        }
        return this;
    }
    if (val instanceof Map) {
        if (!(val instanceof SortedMap || val instanceof ImmutableMap)) {
            logger.warn("Adding an unsorted map to the rule key. " + "Expect unstable ordering and caches misses: %s", val);
        }
        try (ContainerScope containerScope = scopedHasher.containerScope(Container.MAP)) {
            for (Map.Entry<?, ?> entry : ((Map<?, ?>) val).entrySet()) {
                try (Scope elementScope = containerScope.elementScope()) {
                    setReflectively(entry.getKey());
                }
                try (Scope elementScope = containerScope.elementScope()) {
                    setReflectively(entry.getValue());
                }
            }
        }
        return this;
    }
    if (val instanceof Path) {
        throw new HumanReadableException("It's not possible to reliably disambiguate Paths. They are disallowed from rule keys");
    }
    if (val instanceof SourcePath) {
        try {
            return setSourcePath((SourcePath) val);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    if (val instanceof NonHashableSourcePathContainer) {
        SourcePath sourcePath = ((NonHashableSourcePathContainer) val).getSourcePath();
        return setNonHashingSourcePath(sourcePath);
    }
    if (val instanceof SourceWithFlags) {
        SourceWithFlags source = (SourceWithFlags) val;
        try {
            setSourcePath(source.getSourcePath());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        setReflectively(source.getFlags());
        return this;
    }
    return setSingleValue(val);
}

Example 32 with Optional

use of java.util.Optional in project buck by facebook.

the class QueryMacroExpander method extractTargets.

private Stream<BuildTarget> extractTargets(BuildTarget target, CellPathResolver cellNames, Optional<BuildRuleResolver> resolver, T input) {
    String queryExpression = CharMatcher.anyOf("\"'").trimFrom(input.getQuery().getQuery());
    final GraphEnhancementQueryEnvironment env = new GraphEnhancementQueryEnvironment(resolver, targetGraph, cellNames, BuildTargetPatternParser.forBaseName(target.getBaseName()), ImmutableSet.of());
    try {
        QueryExpression parsedExp = QueryExpression.parse(queryExpression, env);
        HashSet<String> targetLiterals = new HashSet<>();
        parsedExp.collectTargetPatterns(targetLiterals);
        return targetLiterals.stream().flatMap(pattern -> {
            try {
                return env.getTargetsMatchingPattern(pattern, executorService).stream();
            } catch (Exception e) {
                throw new HumanReadableException(e, "Error parsing target expression %s for target %s", pattern, target);
            }
        }).map(queryTarget -> {
            Preconditions.checkState(queryTarget instanceof QueryBuildTarget);
            return ((QueryBuildTarget) queryTarget).getBuildTarget();
        });
    } catch (QueryException e) {
        throw new HumanReadableException("Error executing query in macro for target %s", target, e);
    }
}

Example 33 with Optional

use of java.util.Optional in project buck by facebook.

the class AppleConfig method getXcodeBuildVersionSupplier.

/**
   * For some inscrutable reason, the Xcode build number isn't in the toolchain's plist
   * (or in any .plist under Developer/)
   *
   * We have to run `Developer/usr/bin/xcodebuild -version` to get it.
   */
public Supplier<Optional<String>> getXcodeBuildVersionSupplier(final Path developerPath, final ProcessExecutor processExecutor) {
    Supplier<Optional<String>> supplier = xcodeVersionCache.get(developerPath);
    if (supplier != null) {
        return supplier;
    }
    supplier = Suppliers.memoize(new Supplier<Optional<String>>() {

        @Override
        public Optional<String> get() {
            ProcessExecutorParams processExecutorParams = ProcessExecutorParams.builder().setCommand(ImmutableList.of(developerPath.resolve("usr/bin/xcodebuild").toString(), "-version")).build();
            // Specify that stdout is expected, or else output may be wrapped in Ansi escape chars.
            Set<ProcessExecutor.Option> options = EnumSet.of(ProcessExecutor.Option.EXPECTING_STD_OUT);
            ProcessExecutor.Result result;
            try {
                result = processExecutor.launchAndExecute(processExecutorParams, options, /* stdin */
                Optional.empty(), /* timeOutMs */
                Optional.empty(), /* timeOutHandler */
                Optional.empty());
            } catch (InterruptedException | IOException e) {
                LOG.warn("Could not execute xcodebuild to find Xcode build number.");
                return Optional.empty();
            }
            if (result.getExitCode() != 0) {
                throw new RuntimeException(result.getMessageForUnexpectedResult("xcodebuild -version"));
            }
            Matcher matcher = XCODE_BUILD_NUMBER_PATTERN.matcher(result.getStdout().get());
            if (matcher.find()) {
                String xcodeBuildNumber = matcher.group(1);
                return Optional.of(xcodeBuildNumber);
            } else {
                LOG.warn("Xcode build number not found.");
                return Optional.empty();
            }
        }
    });
    xcodeVersionCache.put(developerPath, supplier);
    return supplier;
}

Example 34 with Optional

use of java.util.Optional in project buck by facebook.

the class AppleDescriptions method createBuildRulesForCoreDataDependencies.

public static Optional<CoreDataModel> createBuildRulesForCoreDataDependencies(TargetGraph targetGraph, BuildRuleParams params, String moduleName, AppleCxxPlatform appleCxxPlatform) {
    TargetNode<?, ?> targetNode = targetGraph.get(params.getBuildTarget());
    ImmutableSet<AppleWrapperResourceArg> coreDataModelArgs = AppleBuildRules.collectTransitiveBuildRules(targetGraph, Optional.empty(), AppleBuildRules.CORE_DATA_MODEL_DESCRIPTION_CLASSES, ImmutableList.of(targetNode));
    BuildRuleParams coreDataModelParams = params.withAppendedFlavor(CoreDataModel.FLAVOR).copyReplacingDeclaredAndExtraDeps(Suppliers.ofInstance(ImmutableSortedSet.of()), Suppliers.ofInstance(ImmutableSortedSet.of()));
    if (coreDataModelArgs.isEmpty()) {
        return Optional.empty();
    } else {
        return Optional.of(new CoreDataModel(coreDataModelParams, appleCxxPlatform, moduleName, coreDataModelArgs.stream().map(input -> new PathSourcePath(params.getProjectFilesystem(), input.path)).collect(MoreCollectors.toImmutableSet())));
    }
}

Example 35 with Optional

use of java.util.Optional in project buck by facebook.

the class RobolectricTestDescription method createBuildRule.

@Override
public <A extends Arg> BuildRule createBuildRule(TargetGraph targetGraph, BuildRuleParams params, BuildRuleResolver resolver, A args) throws NoSuchBuildTargetException {
    SourcePathRuleFinder ruleFinder = new SourcePathRuleFinder(resolver);
    JavacOptions javacOptions = JavacOptionsFactory.create(templateOptions, params, resolver, ruleFinder, args);
    AndroidLibraryGraphEnhancer graphEnhancer = new AndroidLibraryGraphEnhancer(params.getBuildTarget(), params.copyReplacingExtraDeps(Suppliers.ofInstance(resolver.getAllRules(args.exportedDeps))), javacOptions, DependencyMode.TRANSITIVE, /* forceFinalResourceIds */
    true, /* resourceUnionPackage */
    Optional.empty(), /* rName */
    Optional.empty(), args.useOldStyleableFormat);
    if (CalculateAbi.isAbiTarget(params.getBuildTarget())) {
        if (params.getBuildTarget().getFlavors().contains(AndroidLibraryGraphEnhancer.DUMMY_R_DOT_JAVA_FLAVOR)) {
            return graphEnhancer.getBuildableForAndroidResourcesAbi(resolver, ruleFinder);
        }
        BuildTarget testTarget = CalculateAbi.getLibraryTarget(params.getBuildTarget());
        BuildRule testRule = resolver.requireRule(testTarget);
        return CalculateAbi.of(params.getBuildTarget(), ruleFinder, params, Preconditions.checkNotNull(testRule.getSourcePathToOutput()));
    }
    ImmutableList<String> vmArgs = args.vmArgs;
    Optional<DummyRDotJava> dummyRDotJava = graphEnhancer.getBuildableForAndroidResources(resolver, /* createBuildableIfEmpty */
    true);
    ImmutableSet<Either<SourcePath, Path>> additionalClasspathEntries = ImmutableSet.of();
    if (dummyRDotJava.isPresent()) {
        additionalClasspathEntries = ImmutableSet.of(Either.ofLeft(dummyRDotJava.get().getSourcePathToOutput()));
        ImmutableSortedSet<BuildRule> newExtraDeps = ImmutableSortedSet.<BuildRule>naturalOrder().addAll(params.getExtraDeps().get()).add(dummyRDotJava.get()).build();
        params = params.copyReplacingExtraDeps(Suppliers.ofInstance(newExtraDeps));
    }
    SourcePathResolver pathResolver = new SourcePathResolver(ruleFinder);
    JavaTestDescription.CxxLibraryEnhancement cxxLibraryEnhancement = new JavaTestDescription.CxxLibraryEnhancement(params, args.useCxxLibraries, args.cxxLibraryWhitelist, resolver, ruleFinder, cxxPlatform);
    params = cxxLibraryEnhancement.updatedParams;
    // Rewrite dependencies on tests to actually depend on the code which backs the test.
    BuildRuleParams testsLibraryParams = params.copyReplacingDeclaredAndExtraDeps(Suppliers.ofInstance(ImmutableSortedSet.<BuildRule>naturalOrder().addAll(params.getDeclaredDeps().get()).addAll(BuildRules.getExportedRules(Iterables.concat(params.getDeclaredDeps().get(), resolver.getAllRules(args.providedDeps)))).build()), Suppliers.ofInstance(ImmutableSortedSet.<BuildRule>naturalOrder().addAll(params.getExtraDeps().get()).addAll(ruleFinder.filterBuildRuleInputs(javacOptions.getInputs(ruleFinder))).build())).withAppendedFlavor(JavaTest.COMPILED_TESTS_LIBRARY_FLAVOR);
    JavaLibrary testsLibrary = resolver.addToIndex(new DefaultJavaLibrary(testsLibraryParams, pathResolver, ruleFinder, args.srcs, validateResources(pathResolver, params.getProjectFilesystem(), args.resources), javacOptions.getGeneratedSourceFolderName(), args.proguardConfig, /* postprocessClassesCommands */
    ImmutableList.of(), /* exportDeps */
    ImmutableSortedSet.of(), /* providedDeps */
    resolver.getAllRules(args.providedDeps), JavaLibraryRules.getAbiInputs(resolver, testsLibraryParams.getDeps()), javacOptions.trackClassUsage(), additionalClasspathEntries, new JavacToJarStepFactory(javacOptions, new BootClasspathAppender()), args.resourcesRoot, args.manifestFile, args.mavenCoords, /* tests */
    ImmutableSortedSet.of(), /* classesToRemoveFromJar */
    ImmutableSet.of()));
    return new RobolectricTest(params.copyReplacingDeclaredAndExtraDeps(Suppliers.ofInstance(ImmutableSortedSet.of(testsLibrary)), Suppliers.ofInstance(ImmutableSortedSet.of())), ruleFinder, testsLibrary, additionalClasspathEntries, args.labels, args.contacts, TestType.JUNIT, javaOptions, vmArgs, cxxLibraryEnhancement.nativeLibsEnvironment, dummyRDotJava, args.testRuleTimeoutMs.map(Optional::of).orElse(defaultTestRuleTimeoutMs), args.testCaseTimeoutMs, args.env, args.getRunTestSeparately(), args.getForkMode(), args.stdOutLogLevel, args.stdErrLogLevel, args.robolectricRuntimeDependency, args.robolectricManifest);
}