Generate TransactionalImmutables.groovy

Generate TransactionalImmutables.groovy

import com.intellij.database.model.DasTable
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil

/*
 * Available context bindings:
 *   SELECTION   Iterable<DasObject>
 *   PROJECT     project
 *   FILES       files helper
 */

packageName = "com.sample;"
typeMapping = [
        (~/(?i)int/)                      : "long",
        (~/(?i)number|float|double|decimal|real/): "java.math.BigDecimal",
        (~/(?i)datetime|timestamp/)       : "org.joda.time.DateTime",
        (~/(?i)date/)                     : "org.joda.time.LocalDate",
        (~/(?i)time/)                     : "org.joda.time.LocalTime",
        (~/(?i)/)                         : "String"
]

FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated files") { dir ->
    SELECTION.filter { it instanceof DasTable }.each { generate(it, dir) }
}

def computePackageName(dir) {
    def path = dir.getAbsolutePath()
    path.substring(path.indexOf(File.separator + 'java' + File.separator) + 6).replace(File.separator, ".")
}

def generate(table, dir) {
    packageName = computePackageName(dir)
    def className = javaName(table.getName(), true)
    def fields = calcFields(table)
    new File(dir, className + "Def.java").withPrintWriter { out -> generate(out, className, fields) }
}

def generate(out, className, fields) {
    out.println "package $packageName;"
    out.println "import com.fasterxml.jackson.databind.annotation.JsonDeserialize;"
    out.println "import org.immutables.value.Value;"
    out.println "import com.integ.core.immutables.DefStyle;"
    out.println "import com.integ.db.mapper.MappableImmutable;"
    out.println "import com.integ.db.mapper.Mapper;"
    out.println "import java.util.Optional;"
    out.println ""
    out.println ""
    out.println "@Value.Immutable"
    out.println "@DefStyle"
    out.println "@MappableImmutable"
    out.println "@JsonDeserialize(builder = " + className + ".Builder.class)"

    def hasModDate = fields.stream()
            .anyMatch { f -> (f.name == "modifiedDate") }
    def hasModifier = fields.stream()
            .anyMatch { f -> (f.name == "modifier") }
    def isModifiable = hasModDate && hasModifier
    def extendedInterfaces = isModifiable ? "extends com.integ.transaction.TransactionalPayload" : ""

    out.println "public interface " + className + "Def $extendedInterfaces {"

    out.println ""
    fields.findAll { f -> !isModifiable || (f.name != "modifier" && f.name != "modifiedDate") }
            .each() {
                if (it.annos != "") out.println "${it.annos}"
                out.println "    ${it.type} ${it.name}();"
                out.println ""
            }
    if(isModifiable) {
        out.println "    @Override"
        out.println "    @Value.Auxiliary"
        out.println "    Optional<com.integ.immutables.ModificationInfo> modificationInfo();"
    }
    out.println ""
//  fields.each() {
//    out.println ""
//    out.println "  public ${it.type} get${it.name.capitalize()}() {"
//    out.println "    return ${it.name};"
//    out.println "  }"
//    out.println ""
//    out.println "  public void set${it.name.capitalize()}(${it.type} ${it.name}) {"
//    out.println "    this.${it.name} = ${it.name};"
//    out.println "  }"
//    out.println ""
//  }
    out.println "}"
}

def calcFields(table) {
    DasUtil.getColumns(table).reduce([]) { fields, col ->

        def spec = Case.LOWER.apply(col.getDataType().getSpecification())
        def typeStr = typeMapping.find { p, t -> p.matcher(spec).find() }.value
        def isNull = !col.isNotNull()
        fields += [[
                           name : javaName(col.getName(), false),
                           type : isNull ? "Optional<"+typeStr+">" : typeStr,
                           annos: "    @Mapper(colName=\"" + col.getName() + "\")"
                   ]]

    }
}


def javaName(str, capitalize) {
    def nameExceptions = [
            "unitid"       : "unitId",
            "unitname"     : "unitName",
            "shortname"    : "shortName",
            "transdate"    : "transDate",
            "effectivedate": "effectiveDate",
            "modifieddate" : "modifiedDate",
            "companyname" : "companyName",
            "companytype" : "companyType",
            "statecode" : "stateCode",
            "unittypecode": "unitTypeCode",
            "daylightsavings" : "dayLightSavings",
            "resourcetype_code" : "resourceTypeCode",
            "rstationcode" : "rStationCode",
            "runitcode": "rUnitCode",
            "commercialdate" : "commercialDate",
            "pjmcosts" : "pjmCosts",
            "udrtemp" : "udrTemp",
            "rollup_isoid":"rollUpIsoId",
            "groupname":"groupName",
    ]
    if (nameExceptions.containsKey(str.toLowerCase()))
        return nameExceptions.get(str.toLowerCase())

    def s = com.intellij.psi.codeStyle.NameUtil.splitNameIntoWords(str)
            .collect { Case.LOWER.apply(it).capitalize() }
            .join("")
            .replaceAll(/[^\p{javaJavaIdentifierPart}[_]]/, "_")
    capitalize || s.length() == 1 ? s : Case.LOWER.apply(s[0]) + s[1..-1]
}