org.zodiac.fastorm.rdb.utils.FeatureUtils Maven / Gradle / Ivy

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package org.zodiac.fastorm.rdb.utils;

import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Collectors;

import org.zodiac.fastorm.core.FeatureType;
import org.zodiac.fastorm.core.meta.Feature;
import org.zodiac.fastorm.core.meta.FeatureSupportedMetadata;
import org.zodiac.fastorm.core.meta.ObjectMetadata;

public abstract class FeatureUtils {

    private FeatureUtils() {
        super();
    }

    private static boolean R2DBC_IS_ALIVE;

    static {
        try {
            Class.forName("io.r2dbc.spi.Connection");
            R2DBC_IS_ALIVE = true;
        } catch (ClassNotFoundException e) {
            R2DBC_IS_ALIVE = false;
        }
    }

    public static boolean r2dbcIsAlive() {
        return R2DBC_IS_ALIVE;
    }

    public static String featureToString(List features) {
        StringBuilder builder = new StringBuilder();
        Map> featureMap = features
                .stream()
                .collect(Collectors.groupingBy(Feature::getType
                        , () -> new TreeMap<>(Comparator.comparing(FeatureType::getId))
                        , Collectors.toList()));

        for (Map.Entry> entry : featureMap.entrySet()) {
            builder.append("--").append(entry.getKey().getId())
                    .append(" (").append(entry.getKey().getName())
                    .append(")")
                    .append("\n");
            for (Feature feature : entry.getValue()) {
                builder.append("-----|---- ")
                        .append(feature.getId())
                        .append(" (")
                        .append(feature.getName())
                        .append(")")
                        .append("\t").append(feature.getClass().getSimpleName())
                        .append("\n");
            }
        }
        return builder.toString();
    }

    public static String metadataToString(ObjectMetadata metadata) {
        StringBuilder builder = new StringBuilder();
        builder.append(metadata.getObjectType().getId())
                .append("(")
                .append(metadata.getObjectType().getName())
                .append(")");
        if (metadata instanceof FeatureSupportedMetadata) {
            builder.append("\n")
                    .append(featureToString(((FeatureSupportedMetadata) metadata).getFeatureList()));
        }
        return builder.toString();
    }

}