liquibase.serializer.core.json.JsonChangeLogSerializer Maven / Gradle / Ivy

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There is a newer version: 4.28.0

package liquibase.serializer.core.json;

import liquibase.serializer.LiquibaseSerializable;
import liquibase.serializer.core.yaml.YamlChangeLogSerializer;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.nodes.Node;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.representer.Represent;

public class JsonChangeLogSerializer extends YamlChangeLogSerializer {

    @Override
    protected Yaml createYaml() {
        DumperOptions dumperOptions = new DumperOptions();
        dumperOptions.setPrettyFlow(true);
        dumperOptions.setDefaultFlowStyle(DumperOptions.FlowStyle.FLOW);
        dumperOptions.setDefaultScalarStyle(DumperOptions.ScalarStyle.DOUBLE_QUOTED);

        return new Yaml(new LiquibaseRepresenter(), dumperOptions);
    }

    @Override
    public String serialize(LiquibaseSerializable object, boolean pretty) {
        String out = yaml.dumpAs(toMap(object), Tag.MAP, DumperOptions.FlowStyle.FLOW);
        out = out.replaceAll("!!int \"(\\d+)\"", "$1");
        out = out.replaceAll("!!bool \"(\\w+)\"", "$1");
        out = out.replaceAll("!!timestamp \"([^\"]*)\"", "$1");
        return out;
    }


    @Override
    public String[] getValidFileExtensions() {
        return new String[]{
                "json"
        };
    }

}