rap/org.argeo.cms.ui.rap/src/org/argeo/cms/ui/script/ScriptUi.java

   1 package org.argeo.cms.ui.script;
   2
   3 import java.net.URL;
   4
   5 import javax.jcr.Node;
   6 import javax.jcr.RepositoryException;
   7 import javax.script.Invocable;
   8 import javax.script.ScriptEngine;
   9 import javax.script.ScriptException;
  10
  11 import org.argeo.api.cms.CmsLog;
  12 import org.argeo.cms.ui.CmsUiProvider;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Control;
  15 import org.osgi.framework.BundleContext;
  16
  17 class ScriptUi implements CmsUiProvider {
  18         private final static CmsLog log = CmsLog.getLog(ScriptUi.class);
  19
  20         private boolean development = true;
  21         private ScriptEngine scriptEngine;
  22
  23         private URL appUrl;
  24         // private BundleContext bundleContext;
  25         // private String path;
  26
  27         // private Bindings bindings;
  28         // private String script;
  29
  30         public ScriptUi(BundleContext bundleContext,ScriptEngine scriptEngine, String path) {
  31                 this.scriptEngine = scriptEngine;
  32 ////            ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
  33 //              ClassLoader bundleCl = bundleContext.getBundle().adapt(BundleWiring.class).getClassLoader();
  34 //              ClassLoader originalCcl = Thread.currentThread().getContextClassLoader();
  35 //              try {
  36 ////                    Thread.currentThread().setContextClassLoader(bundleCl);
  37 ////                    scriptEngine = scriptEngineManager.getEngineByName("JavaScript");
  38 ////                    scriptEngine.put(CmsScriptRwtApplication.BC, bundleContext);
  39 //                      scriptEngine = CmsScriptRwtApplication.loadScriptEngine(originalCcl, bundleCl);
  40 //
  41 //              } catch (Exception e) {
  42 //                      e.printStackTrace();
  43 //              } finally {
  44 //                      Thread.currentThread().setContextClassLoader(originalCcl);
  45 //              }
  46                 this.appUrl = bundleContext.getBundle().getEntry(path);
  47                 load();
  48         }
  49
  50         private void load() {
  51 //              try (Reader reader = new InputStreamReader(appUrl.openStream())) {
  52 //                      scriptEngine.eval(reader);
  53 //              } catch (IOException | ScriptException e) {
  54 //                      log.warn("Cannot execute " + appUrl, e);
  55 //              }
  56
  57                 try {
  58                         scriptEngine.eval("load('" + appUrl + "')");
  59                 } catch (ScriptException e) {
  60                         log.warn("Cannot execute " + appUrl, e);
  61                 }
  62
  63         }
  64
  65         // public ScriptUiProvider(ScriptEngine scriptEngine, String script) throws
  66         // ScriptException {
  67         // super();
  68         // this.scriptEngine = scriptEngine;
  69         // this.script = script;
  70         // bindings = scriptEngine.createBindings();
  71         // scriptEngine.eval(script, bindings);
  72         // }
  73
  74         @Override
  75         public Control createUi(Composite parent, Node context) throws RepositoryException {
  76                 long begin = System.currentTimeMillis();
  77                 // if (bindings == null) {
  78                 // bindings = scriptEngine.createBindings();
  79                 // try {
  80                 // scriptEngine.eval(script, bindings);
  81                 // } catch (ScriptException e) {
  82                 // log.warn("Cannot evaluate script", e);
  83                 // }
  84                 // }
  85                 // Bindings bindings = scriptEngine.createBindings();
  86                 // bindings.put("parent", parent);
  87                 // bindings.put("context", context);
  88                 // URL appUrl = bundleContext.getBundle().getEntry(path);
  89                 // try (Reader reader = new InputStreamReader(appUrl.openStream())) {
  90                 // scriptEngine.eval(reader,bindings);
  91                 // } catch (IOException | ScriptException e) {
  92                 // log.warn("Cannot execute " + appUrl, e);
  93                 // }
  94
  95                 if (development)
  96                         load();
  97
  98                 Invocable invocable = (Invocable) scriptEngine;
  99                 try {
 100                         invocable.invokeFunction("createUi", parent, context);
 101                 } catch (NoSuchMethodException e) {
 102                         // TODO Auto-generated catch block
 103                         e.printStackTrace();
 104                 } catch (ScriptException e) {
 105                         // TODO Auto-generated catch block
 106                         e.printStackTrace();
 107                 }
 108
 109                 long duration = System.currentTimeMillis() - begin;
 110                 if (log.isTraceEnabled())
 111                         log.trace(appUrl + " UI in " + duration + " ms");
 112                 return null;
 113         }
 114
 115 }