DirectoryProcessor.java

package org.entando.kubernetes.model.bundle.processor;

import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Collectors;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.entando.kubernetes.client.core.EntandoCoreClient;
import org.entando.kubernetes.controller.digitalexchange.job.model.InstallAction;
import org.entando.kubernetes.controller.digitalexchange.job.model.InstallPlan;
import org.entando.kubernetes.exception.EntandoComponentManagerException;
import org.entando.kubernetes.model.bundle.BundleProperty;
import org.entando.kubernetes.model.bundle.ComponentType;
import org.entando.kubernetes.model.bundle.descriptor.ComponentSpecDescriptor;
import org.entando.kubernetes.model.bundle.descriptor.DirectoryDescriptor;
import org.entando.kubernetes.model.bundle.installable.DirectoryInstallable;
import org.entando.kubernetes.model.bundle.installable.Installable;
import org.entando.kubernetes.model.bundle.reader.BundleReader;
import org.entando.kubernetes.model.bundle.reportable.EntandoEngineReportableProcessor;
import org.entando.kubernetes.model.bundle.reportable.Reportable;
import org.entando.kubernetes.model.job.EntandoBundleComponentJobEntity;
import org.entando.kubernetes.service.digitalexchange.BundleUtilities;
import org.springframework.stereotype.Service;

/**
 * Processor to handle Static files to be stored by Entando. Commonly used for js, images and css.
 *
 * <p>This processor will also create the folders.
 *
 * @author Sergio Marcelino
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class DirectoryProcessor extends BaseComponentProcessor<DirectoryDescriptor>
        implements EntandoEngineReportableProcessor {

    private final EntandoCoreClient engineService;

    @Override
    public ComponentType getSupportedComponentType() {
        return ComponentType.DIRECTORY;
    }

    @Override
    public Class<DirectoryDescriptor> getDescriptorClass() {
        return DirectoryDescriptor.class;
    }

    @Override
    public Optional<Function<ComponentSpecDescriptor, List<String>>> getComponentSelectionFn() {
        return Optional.empty();
    }

    @Override
    public List<Installable<DirectoryDescriptor>> process(BundleReader bundleReader) {
        return this.process(bundleReader, InstallAction.CREATE, new InstallPlan());
    }

    @Override
    public List<Installable<DirectoryDescriptor>> process(BundleReader bundleReader, InstallAction conflictStrategy,
            InstallPlan installPlan) {
        final List<Installable<DirectoryDescriptor>> installables = new LinkedList<>();

        try {
            if (bundleReader.containsResourceFolder()) {
                final String resourceFolder = BundleUtilities.determineBundleResourceRootFolder(bundleReader);
                InstallAction rootDirectoryAction = extractInstallAction(resourceFolder, conflictStrategy, installPlan);
                installables.add(new DirectoryInstallable(engineService, new DirectoryDescriptor(resourceFolder, true),
                        rootDirectoryAction));
            }
        } catch (IOException e) {
            throw makeMeaningfulException(e);
        }

        return installables;
    }

    @Override
    public List<Installable<DirectoryDescriptor>> process(List<EntandoBundleComponentJobEntity> components) {
        return components.stream()
                .filter(c -> c.getComponentType() == getSupportedComponentType())
                .map(c -> new DirectoryInstallable(engineService, this.buildDescriptorFromComponentJob(c),
                        c.getAction()))
                .collect(Collectors.toList());
    }

    @Override
    public DirectoryDescriptor buildDescriptorFromComponentJob(EntandoBundleComponentJobEntity component) {
        Path dirPath = Paths.get(component.getComponentId());
        boolean isRoot = false;
        if (dirPath.getParent().equals(dirPath.getRoot())) {
            isRoot = true;
        }
        return new DirectoryDescriptor(component.getComponentId(), isRoot);
    }

    @Override
    public Reportable getReportable(BundleReader bundleReader, ComponentProcessor<?> componentProcessor) {

        List<String> idList = new ArrayList<>();

        try {
            final String resourceFolder = BundleUtilities.determineBundleResourceRootFolder(bundleReader);
            if (! resourceFolder.equals("/")) {
                idList.add(resourceFolder);
            }

            List<String> resourceFolders = bundleReader.getResourceFolders().stream().sorted()
                    .collect(Collectors.toList());
            for (final String resourceDir : resourceFolders) {
                Path fileFolder = Paths.get(BundleProperty.RESOURCES_FOLDER_PATH.getValue())
                        .relativize(Paths.get(resourceDir));

                String folder = Paths.get(resourceFolder).resolve(fileFolder).toString();
                idList.add(folder);
            }

            return new Reportable(componentProcessor.getSupportedComponentType(), idList,
                    this.getReportableRemoteHandler());

        } catch (IOException e) {
            throw new EntandoComponentManagerException(String.format("Error generating Reportable for %s type",
                    componentProcessor.getSupportedComponentType().getTypeName()), e);
        }
    }
}