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• DataLayout.java

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com.weavechain.core.data.DataLayout Maven / Gradle / Ivy

package com.weavechain.core.data;

import com.weavechain.core.data.transform.*;
import com.weavechain.core.encoding.Utils;
import lombok.Getter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.*;
import java.util.function.Supplier;

public class DataLayout {

    static final Logger logger = LoggerFactory.getLogger(DataLayout.class);

    public static final DataLayout DEFAULT = createDefault();

    private transient Map transformationAlgo;

    private final Map layout = new LinkedHashMap<>();

    private final Map indexes = new LinkedHashMap<>();

    private final List columnNames = new ArrayList<>();

    private final List columns = new ArrayList<>();

    @Getter
    private final Integer idColumnIndex;

    @Getter
    private final Integer timestampColumnIndex;

    @Getter
    private final Integer ownerColumnIndex;

    @Getter
    private final Integer signatureColumnIndex;

    @Getter
    private final Integer sourceIpColumnIndex;

    @Getter
    private final Integer allowedRolesColumnIndex;

    @Getter
    private final String ownerReadFilter;

    @Getter
    private final Integer encryptSaltColumnIndex;

    @Getter
    private final Integer updateProofColumnIndex;

    @Getter
    private final boolean isLocal;

    @Getter
    private final boolean isOnlyOwnDataAllowed;

    @Getter
    private final boolean applyReadTransformations;

    @Getter
    private final boolean allowEndingNulls;

    @Getter
    private final boolean autoUpdated;

    @Getter
    private final boolean autoUpdatable;

    @Getter
    private transient Boolean hasEncryptedColumns = null;

    private static Map> transformAlgoParams; //Needed only server side. TODO: revisit, ugly injection

    public DataLayout(Integer idColumnIndex, Integer timestampColumnIndex) {
        this(idColumnIndex, timestampColumnIndex, null, null, null, null, null, null, null, false, false, true, true, false, true);
    }

    public DataLayout(Integer idColumnIndex, Integer timestampColumnIndex, boolean autoUpdated) {
        this(idColumnIndex, timestampColumnIndex, null, null, null, null, null, null, null, false, false, true, true, autoUpdated, true);
    }

    public DataLayout(Integer idColumnIndex, Integer timestampColumnIndex, Integer ownerColumnIndex, Integer signatureColumnIndex, Integer sourceIpColumnIndex, Integer allowedRolesColumnIndex, String ownerReadFilter, Integer encryptSaltColumnIndex, Integer updateProofColumnIndex) {
        this(idColumnIndex, timestampColumnIndex, ownerColumnIndex, signatureColumnIndex, sourceIpColumnIndex, allowedRolesColumnIndex, ownerReadFilter, encryptSaltColumnIndex, updateProofColumnIndex, false, false, true, true, false, true);
    }

    public DataLayout(
            Integer idColumnIndex,
            Integer timestampColumnIndex,
            Integer ownerColumnIndex,
            Integer signatureColumnIndex,
            Integer sourceIpColumnIndex,
            Integer allowedRolesColumnIndex,
            String ownerReadFilter,
            Integer encryptSaltColumnIndex,
            Integer updateProofColumnIndex,
            boolean isLocal,
            boolean isOnlyOwnDataAllowed,
            boolean applyReadTransformations,
            boolean allowEndingNulls,
            boolean autoUpdated,
            boolean autoUpdatable
    ) {
        this.idColumnIndex = idColumnIndex;
        this.timestampColumnIndex = timestampColumnIndex;
        this.ownerColumnIndex = ownerColumnIndex;
        this.signatureColumnIndex = signatureColumnIndex;
        this.sourceIpColumnIndex = sourceIpColumnIndex;
        this.allowedRolesColumnIndex = allowedRolesColumnIndex;
        this.ownerReadFilter = ownerReadFilter;
        this.encryptSaltColumnIndex = encryptSaltColumnIndex;
        this.updateProofColumnIndex = updateProofColumnIndex;
        this.isLocal = isLocal;
        this.isOnlyOwnDataAllowed = isOnlyOwnDataAllowed;
        this.allowEndingNulls = allowEndingNulls;
        this.autoUpdated = autoUpdated;
        this.autoUpdatable = autoUpdatable;

        this.applyReadTransformations = applyReadTransformations;

        buildTransformationsMap();
    }

    public static void setTransformAlgoParams(Map> value) {
        transformAlgoParams = value != null ? new HashMap<>(value) : null;
    }

    public static TransformationAlgoParams getTransformAlgoParams(String scope, String table) {
        if (transformAlgoParams != null && transformAlgoParams.get(scope) != null) {
            return transformAlgoParams.get(scope).get(table);
        } else {
            return null;
        }
    }

    private void buildTransformationsMap() {
        transformationAlgo = new HashMap<>();

        transformationAlgo.put(DataTransform.ERASURE, new Erasure());
        transformationAlgo.put(DataTransform.HASHING, new Hashing(MappingRepositories.INSTANCE.getHashesRepository()));
        transformationAlgo.put(DataTransform.RANDOM_ID, new RandomId(MappingRepositories.INSTANCE.getRandomIdsRepository()));
        transformationAlgo.put(DataTransform.LINKED_RANDOM_ID, new RandomId(MappingRepositories.INSTANCE.getLinkedRandomIdsRepository()));

        transformationAlgo.put(DataTransform.NOISE_ADDITION, new NoiseAdded());
        transformationAlgo.put(DataTransform.ENCRYPT, new Encrypt());
        transformationAlgo.put(DataTransform.QUANTIZATION, new Quantization());

        transformationAlgo.put(DataTransform.CONVERT_LONG, new ConvertLong());
        transformationAlgo.put(DataTransform.CONVERT_DOUBLE, new ConvertDouble());
    }

    public void addColumns(DataLayout other) {
        for (int i = 0; i < other.size(); i++) {
            DataColumn column = other.getDefinition(i);
            add(column.getColumnName(),
                    column.getType(),
                    column.getReadTransform(),
                    column.getDefaultValue(),
                    column.isIndexed(),
                    column.isNullable(),
                    column.isUnique(),
                    column.isEncrypted(),
                    column.isAllowPlaintext()
            );
        }
    }

    public String add(
            String columnName,
            DataType type,
            DataTransform readTransform,
            Supplier