Examples with Optional com.google.common.base.Optional used on opensource projects

Example 11 with Optional

use of com.google.common.base.Optional in project che by eclipse.

the class ResourceManager method importProject.

protected Promise<Project> importProject(final Project.ProjectRequest importRequest) {
    checkArgument(checkProjectName(importRequest.getBody().getName()), "Invalid project name");
    checkNotNull(importRequest.getBody().getSource(), "Null source configuration occurred");
    final Path path = Path.valueOf(importRequest.getBody().getPath());
    return findResource(path, true).thenPromise(new Function<Optional<Resource>, Promise<Project>>() {

        @Override
        public Promise<Project> apply(final Optional<Resource> resource) throws FunctionException {
            final SourceStorage sourceStorage = importRequest.getBody().getSource();
            final SourceStorageDto sourceStorageDto = dtoFactory.createDto(SourceStorageDto.class).withType(sourceStorage.getType()).withLocation(sourceStorage.getLocation()).withParameters(sourceStorage.getParameters());
            return ps.importProject(path, sourceStorageDto).thenPromise(new Function<Void, Promise<Project>>() {

                @Override
                public Promise<Project> apply(Void ignored) throws FunctionException {
                    return ps.getProject(path).then(new Function<ProjectConfigDto, Project>() {

                        @Override
                        public Project apply(ProjectConfigDto config) throws FunctionException {
                            cachedConfigs = add(cachedConfigs, config);
                            Resource project = resourceFactory.newProjectImpl(config, ResourceManager.this);
                            checkState(project != null, "Failed to locate imported project's configuration");
                            store.register(project);
                            eventBus.fireEvent(new ResourceChangedEvent(new ResourceDeltaImpl(project, (resource.isPresent() ? UPDATED : ADDED) | DERIVED)));
                            return (Project) project;
                        }
                    });
                }
            });
        }
    });
}

Example 12 with Optional

use of com.google.common.base.Optional in project che by eclipse.

the class ResourceManager method update.

/**
     * Update state of specific properties in project and save this state on the server.
     * As the result method should return the {@link Promise} with new {@link Project} object.
     * <p/>
     * During the update method have to iterate on children of updated resource and if any of
     * them has changed own type, e.g. folder -> project, project -> folder, specific event
     * has to be fired.
     * <p/>
     * Method is not intended to be called in third party components. It is the service method
     * for {@link Project}.
     *
     * @param path
     *         the path to project which should be updated
     * @param request
     *         the update request
     * @return the {@link Promise} with new {@link Project} object.
     * @see ResourceChangedEvent
     * @see ProjectRequest
     * @see Project#update()
     * @since 4.4.0
     */
protected Promise<Project> update(final Path path, final ProjectRequest request) {
    final ProjectConfig projectConfig = request.getBody();
    final SourceStorage source = projectConfig.getSource();
    final SourceStorageDto sourceDto = dtoFactory.createDto(SourceStorageDto.class);
    if (source != null) {
        sourceDto.setLocation(source.getLocation());
        sourceDto.setType(source.getType());
        sourceDto.setParameters(source.getParameters());
    }
    final ProjectConfigDto dto = dtoFactory.createDto(ProjectConfigDto.class).withName(projectConfig.getName()).withPath(path.toString()).withDescription(projectConfig.getDescription()).withType(projectConfig.getType()).withMixins(projectConfig.getMixins()).withAttributes(projectConfig.getAttributes()).withSource(sourceDto);
    return ps.updateProject(dto).thenPromise(new Function<ProjectConfigDto, Promise<Project>>() {

        @Override
        public Promise<Project> apply(ProjectConfigDto reference) throws FunctionException {
            /* Note: After update, project may become to be other type,
                   e.g. blank -> java or maven, or ant, or etc. And this may
                   cause sub-project creations. Simultaneously on the client
                   side there is outdated information about sub-projects, so
                   we need to get updated project list. */
            //dispose outdated resource
            final Optional<Resource> outdatedResource = store.getResource(path);
            checkState(outdatedResource.isPresent(), "Outdated resource wasn't found");
            final Resource resource = outdatedResource.get();
            checkState(resource instanceof Container, "Outdated resource is not a container");
            Container container = (Container) resource;
            if (resource instanceof Folder) {
                Container parent = resource.getParent();
                checkState(parent != null, "Parent of the resource wasn't found");
                container = parent;
            }
            return synchronize(container).then(new Function<Resource[], Project>() {

                @Override
                public Project apply(Resource[] synced) throws FunctionException {
                    final Optional<Resource> updatedProject = store.getResource(path);
                    checkState(updatedProject.isPresent(), "Updated resource is not present");
                    checkState(updatedProject.get().isProject(), "Updated resource is not a project");
                    eventBus.fireEvent(new ResourceChangedEvent(new ResourceDeltaImpl(updatedProject.get(), UPDATED)));
                    return (Project) updatedProject.get();
                }
            });
        }
    });
}

Example 13 with Optional

use of com.google.common.base.Optional in project che by eclipse.

the class ResourceManager method createProject.

Promise<Project> createProject(final Project.ProjectRequest createRequest) {
    checkArgument(checkProjectName(createRequest.getBody().getName()), "Invalid project name");
    checkArgument(typeRegistry.getProjectType(createRequest.getBody().getType()) != null, "Invalid project type");
    final Path path = Path.valueOf(createRequest.getBody().getPath());
    return findResource(path, true).thenPromise(new Function<Optional<Resource>, Promise<Project>>() {

        @Override
        public Promise<Project> apply(Optional<Resource> resource) throws FunctionException {
            if (resource.isPresent()) {
                if (resource.get().isProject()) {
                    throw new IllegalStateException("Project already exists");
                } else if (resource.get().isFile()) {
                    throw new IllegalStateException("File can not be converted to project");
                }
                return update(path, createRequest);
            }
            final MutableProjectConfig projectConfig = (MutableProjectConfig) createRequest.getBody();
            final List<NewProjectConfig> projectConfigList = projectConfig.getProjects();
            projectConfigList.add(asDto(projectConfig));
            final List<NewProjectConfigDto> configDtoList = asDto(projectConfigList);
            return ps.createBatchProjects(configDtoList).thenPromise(new Function<List<ProjectConfigDto>, Promise<Project>>() {

                @Override
                public Promise<Project> apply(final List<ProjectConfigDto> configList) throws FunctionException {
                    return ps.getProjects().then(new Function<List<ProjectConfigDto>, Project>() {

                        @Override
                        public Project apply(List<ProjectConfigDto> updatedConfiguration) throws FunctionException {
                            //cache new configs
                            cachedConfigs = updatedConfiguration.toArray(new ProjectConfigDto[updatedConfiguration.size()]);
                            for (ProjectConfigDto projectConfigDto : configList) {
                                if (projectConfigDto.getPath().equals(path.toString())) {
                                    final Project newResource = resourceFactory.newProjectImpl(projectConfigDto, ResourceManager.this);
                                    store.register(newResource);
                                    eventBus.fireEvent(new ResourceChangedEvent(new ResourceDeltaImpl(newResource, ADDED | DERIVED)));
                                    return newResource;
                                }
                            }
                            throw new IllegalStateException("Created project is not found");
                        }
                    });
                }
            });
        }
    });
}

Example 14 with Optional

use of com.google.common.base.Optional in project che by eclipse.

the class ResourceManager method onExternalDeltaMoved.

private Promise<Void> onExternalDeltaMoved(final ResourceDelta delta) {
    //search resource to remove at first
    return findResource(delta.getFromPath(), true).thenPromise(new Function<Optional<Resource>, Promise<Void>>() {

        @Override
        public Promise<Void> apply(final Optional<Resource> toRemove) throws FunctionException {
            if (!toRemove.isPresent()) {
                return promises.resolve(null);
            }
            store.dispose(delta.getFromPath(), true);
            return findResource(delta.getToPath(), true).then(new Function<Optional<Resource>, Void>() {

                @Override
                public Void apply(final Optional<Resource> resource) throws FunctionException {
                    if (resource.isPresent() && toRemove.isPresent()) {
                        Resource intercepted = resource.get();
                        if (!store.getResource(intercepted.getLocation()).isPresent()) {
                            store.register(intercepted);
                        }
                        eventBus.fireEvent(new ResourceChangedEvent(new ResourceDeltaImpl(intercepted, toRemove.get(), ADDED | MOVED_FROM | MOVED_TO | DERIVED)));
                    }
                    return null;
                }
            });
        }
    });
}

Example 15 with Optional

use of com.google.common.base.Optional in project che by eclipse.

the class OrionEditorPresenter method onResourceCreated.

private void onResourceCreated(ResourceDelta delta) {
    if ((delta.getFlags() & (MOVED_FROM | MOVED_TO)) == 0) {
        return;
    }
    final Resource resource = delta.getResource();
    final Path movedFrom = delta.getFromPath();
    //file moved directly
    if (document.getFile().getLocation().equals(movedFrom)) {
        deletedFilesController.add(movedFrom.toString());
        document.setFile((File) resource);
        input.setFile((File) resource);
        updateContent();
    } else if (movedFrom.isPrefixOf(document.getFile().getLocation())) {
        //directory where file moved
        final Path relPath = document.getFile().getLocation().removeFirstSegments(movedFrom.segmentCount());
        final Path newPath = delta.getToPath().append(relPath);
        appContext.getWorkspaceRoot().getFile(newPath).then(new Operation<Optional<File>>() {

            @Override
            public void apply(Optional<File> file) throws OperationException {
                if (file.isPresent()) {
                    final Path location = document.getFile().getLocation();
                    deletedFilesController.add(location.toString());
                    generalEventBus.fireEvent(newFileTrackingStartEvent(file.get().getLocation().toString()));
                    document.setFile(file.get());
                    input.setFile(file.get());
                    updateTabReference(file.get(), location);
                    updateContent();
                }
            }
        });
    }
}