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(refs #464)Experimental implementation of Scala based plugin
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Naoki Takezoe
@@ -1,117 +0,0 @@
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package plugin
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import org.mozilla.javascript.{Context => JsContext}
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import org.mozilla.javascript.{Function => JsFunction}
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import scala.collection.mutable.ListBuffer
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import plugin.PluginSystem._
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import util.ControlUtil._
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import plugin.PluginSystem.GlobalMenu
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import plugin.PluginSystem.RepositoryAction
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import plugin.PluginSystem.Action
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import plugin.PluginSystem.RepositoryMenu
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class JavaScriptPlugin(val id: String, val version: String,
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val author: String, val url: String, val description: String) extends Plugin {
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private val repositoryMenuList = ListBuffer[RepositoryMenu]()
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private val globalMenuList = ListBuffer[GlobalMenu]()
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private val repositoryActionList = ListBuffer[RepositoryAction]()
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private val globalActionList = ListBuffer[Action]()
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def repositoryMenus : List[RepositoryMenu] = repositoryMenuList.toList
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def globalMenus : List[GlobalMenu] = globalMenuList.toList
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def repositoryActions : List[RepositoryAction] = repositoryActionList.toList
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def globalActions : List[Action] = globalActionList.toList
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def addRepositoryMenu(label: String, name: String, url: String, icon: String, condition: JsFunction): Unit = {
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repositoryMenuList += RepositoryMenu(label, name, url, icon, (context) => {
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val context = JsContext.enter()
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try {
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condition.call(context, condition, condition, Array(context)).asInstanceOf[Boolean]
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} finally {
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JsContext.exit()
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}
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})
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}
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def addGlobalMenu(label: String, url: String, icon: String, condition: JsFunction): Unit = {
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globalMenuList += GlobalMenu(label, url, icon, (context) => {
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val context = JsContext.enter()
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try {
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condition.call(context, condition, condition, Array(context)).asInstanceOf[Boolean]
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} finally {
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JsContext.exit()
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}
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})
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}
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def addGlobalAction(path: String, function: JsFunction): Unit = {
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globalActionList += Action(path, (request, response) => {
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val context = JsContext.enter()
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try {
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function.call(context, function, function, Array(request, response))
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} finally {
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JsContext.exit()
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}
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})
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}
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def addRepositoryAction(path: String, function: JsFunction): Unit = {
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repositoryActionList += RepositoryAction(path, (request, response, repository) => {
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val context = JsContext.enter()
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try {
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function.call(context, function, function, Array(request, response, repository))
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} finally {
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JsContext.exit()
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}
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})
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}
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object db {
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// TODO Use JavaScript Map instead of java.util.Map
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def select(sql: String): Array[java.util.Map[String, String]] = {
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defining(PluginConnectionHolder.threadLocal.get){ conn =>
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using(conn.prepareStatement(sql)){ stmt =>
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using(stmt.executeQuery()){ rs =>
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val list = new java.util.ArrayList[java.util.Map[String, String]]()
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while(rs.next){
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defining(rs.getMetaData){ meta =>
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val map = new java.util.HashMap[String, String]()
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Range(1, meta.getColumnCount).map { i =>
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val name = meta.getColumnName(i)
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map.put(name, rs.getString(name))
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}
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list.add(map)
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}
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}
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list.toArray(new Array[java.util.Map[String, String]](list.size))
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}
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}
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}
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}
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}
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}
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object JavaScriptPlugin {
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def define(id: String, version: String, author: String, url: String, description: String)
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= new JavaScriptPlugin(id, version, author, url, description)
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def evaluateJavaScript(script: String, vars: Map[String, Any] = Map.empty): Any = {
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val context = JsContext.enter()
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try {
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val scope = context.initStandardObjects()
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scope.put("PluginSystem", scope, PluginSystem)
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scope.put("JavaScriptPlugin", scope, this)
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vars.foreach { case (key, value) =>
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scope.put(key, scope, value)
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}
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val result = context.evaluateString(scope, script, "<cmd>", 1, null)
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result
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} finally {
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JsContext.exit
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}
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}
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}
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@@ -10,6 +10,9 @@ import org.apache.commons.io.FileUtils
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import util.JGitUtil
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import org.eclipse.jgit.api.Git
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import service.RepositoryService.RepositoryInfo
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import scala.reflect.runtime.currentMirror
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import scala.tools.reflect.ToolBox
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/**
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* Provides extension points to plug-ins.
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@@ -54,25 +57,26 @@ object PluginSystem {
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// TODO Method name seems to not so good.
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def installPlugin(id: String): Unit = {
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val pluginDir = new java.io.File(PluginHome)
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val javaScriptFile = new java.io.File(pluginDir, id + "/plugin.js")
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if(javaScriptFile.exists && javaScriptFile.isFile){
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val scalaFile = new java.io.File(pluginDir, id + "/plugin.scala")
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if(scalaFile.exists && scalaFile.isFile){
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val properties = new java.util.Properties()
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using(new java.io.FileInputStream(new java.io.File(pluginDir, id + "/plugin.properties"))){ in =>
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properties.load(in)
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}
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val script = FileUtils.readFileToString(javaScriptFile, "UTF-8")
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val source = s"""
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|val id = "${properties.getProperty("id")}"
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|val version = "${properties.getProperty("version")}"
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|val author = "${properties.getProperty("author")}"
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|val url = "${properties.getProperty("url")}"
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|val description = "${properties.getProperty("description")}"
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""".stripMargin + FileUtils.readFileToString(scalaFile, "UTF-8")
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try {
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JavaScriptPlugin.evaluateJavaScript(script, Map(
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"id" -> properties.getProperty("id"),
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"version" -> properties.getProperty("version"),
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"author" -> properties.getProperty("author"),
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"url" -> properties.getProperty("url"),
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"description" -> properties.getProperty("description")
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))
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ScalaPlugin.eval(source)
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} catch {
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case e: Exception => logger.warn(s"Error in plugin loading for ${javaScriptFile.getAbsolutePath}", e)
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case e: Exception => logger.warn(s"Error in plugin loading for ${scalaFile.getAbsolutePath}", e)
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}
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}
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}
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@@ -109,17 +113,6 @@ object PluginSystem {
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}
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}
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// TODO This is a test
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// addGlobalMenu("Google", "http://www.google.co.jp/", "data:image/png;base64,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")
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// { context => context.loginAccount.isDefined }
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//
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// addRepositoryMenu("Board", "board", "/board", "data:image/png;base64,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")
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// { context => true}
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//
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// addGlobalAction("/hello"){ (request, response) =>
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// "Hello World!"
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// }
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}
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@@ -1,10 +1,15 @@
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package plugin
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import app.Context
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import scala.collection.mutable.ListBuffer
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import plugin.PluginSystem._
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import javax.servlet.http.{HttpServletResponse, HttpServletRequest}
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import plugin.PluginSystem.GlobalMenu
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import plugin.PluginSystem.Action
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import plugin.PluginSystem.RepositoryAction
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import app.Context
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import plugin.PluginSystem.RepositoryMenu
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import service.RepositoryService.RepositoryInfo
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import scala.reflect.runtime.currentMirror
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import scala.tools.reflect.ToolBox
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// TODO This is a sample implementation for Scala based plug-ins.
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class ScalaPlugin(val id: String, val version: String,
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@@ -37,3 +42,16 @@ class ScalaPlugin(val id: String, val version: String,
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}
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}
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object ScalaPlugin {
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def define(id: String, version: String, author: String, url: String, description: String)
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= new ScalaPlugin(id, version, author, url, description)
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def eval(source: String): Any = {
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val toolbox = currentMirror.mkToolBox()
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val tree = toolbox.parse(source)
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toolbox.eval(tree)
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}
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}
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29
src/main/scala/plugin/package.scala
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29
src/main/scala/plugin/package.scala
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@@ -0,0 +1,29 @@
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import util.ControlUtil._
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import scala.collection.mutable.ListBuffer
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package object plugin {
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object db {
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// TODO Use JavaScript Map instead of java.util.Map
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def select(sql: String): Seq[Map[String, String]] = {
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defining(PluginConnectionHolder.threadLocal.get){ conn =>
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using(conn.prepareStatement(sql)){ stmt =>
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using(stmt.executeQuery()){ rs =>
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val list = new ListBuffer[Map[String, String]]()
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while(rs.next){
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defining(rs.getMetaData){ meta =>
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val map = Range(1, meta.getColumnCount + 1).map { i =>
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val name = meta.getColumnName(i)
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(name, rs.getString(name))
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}.toMap
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list += map
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}
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}
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list
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}
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}
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}
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}
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}
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}
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