idea 根据表 生成实体类 groove 脚本版

# 生成的实体类 ，类名大写，属性没有进行 下划线转大写操作

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.cjy.datacenter.entity;"
typeMapping = [
        (~/(?i)bigint/)                   : "Long",
        (~/(?i)int/)                      : "Integer",
        (~/(?i)float|double|decimal|real/): "Double",
        (~/(?i)datetime|timestamp/)       : "java.util.Date",
        (~/(?i)time/)                     : "java.util.Date",
        (~/(?i)date/)                     : "java.sql.Date",
        //(~/(?i)time/)                     : "java.sql.Time",
        (~/(?i)/)                         : "String"
]

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


def generate(table, dir) {
  def className = javaName(table.getName(), true)
  def fields = calcFields(table)
  new PrintWriter(new OutputStreamWriter(new FileOutputStream( new File(dir, className + ".java")), "utf-8")).withPrintWriter { out -> generate(out, className, fields) }
}


def generate(out, className, fields) {
  out.println "package $packageName"
  out.print "import lombok.Data; "
  out.println ""
  out.println ""

  out.println "@Data"
  out.println "public class $className {"
  out.println ""
  fields.each() {

    if (isNotEmpty(it.commoent)) {
      out.println "\t/**"
      out.println "\t * ${it.commoent}"
      out.println "\t */"
    }


    if (it.annos != "") out.println "  ${it.annos}"
    out.println "  private ${it.type} ${it.name};"
  }
  out.println ""
  // 注释掉 set get 方法
  /*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
    fields += [[
                       name    : fieldName(col.getName()),
                       type    : typeStr,
                       commoent: col.getComment(),
                       annos   : ""]]
  }
}

def javaName(str, capitalize) {
  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]
  return s
}

def fieldName(str){
  return str
}

def isNotEmpty(content) {
  return content != null && content.toString().trim().length() > 0
}