X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2Fscript%2FCmsScriptRwtApplication.java;fp=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2Fscript%2FCmsScriptRwtApplication.java;h=d7c1a63ce2c13d498f12ee90ed420673d315919b;hb=5b3108fe285bca50565b58b63fa4feddc96c0765;hp=0000000000000000000000000000000000000000;hpb=e54c6091d38b6859dec42f36e7334da19e2a0227;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/ui/script/CmsScriptRwtApplication.java b/org.argeo.cms.ui/src/org/argeo/cms/ui/script/CmsScriptRwtApplication.java
new file mode 100644
index 000000000..d7c1a63ce
--- /dev/null
+++ b/org.argeo.cms.ui/src/org/argeo/cms/ui/script/CmsScriptRwtApplication.java
@@ -0,0 +1,121 @@
+package org.argeo.cms.ui.script;
+
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.URL;
+
+import javax.jcr.Repository;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.cms.CmsException;
+import org.eclipse.rap.rwt.application.Application;
+import org.eclipse.rap.rwt.application.ApplicationConfiguration;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.BundleException;
+import org.osgi.framework.wiring.BundleWiring;
+
+public class CmsScriptRwtApplication implements ApplicationConfiguration {
+	public final static String APP = "APP";
+	public final static String BC = "BC";
+
+	private final Log log = LogFactory.getLog(CmsScriptRwtApplication.class);
+
+	BundleContext bundleContext;
+	Repository repository;
+
+	ScriptEngine engine;
+
+	public void init(BundleContext bundleContext) {
+		this.bundleContext = bundleContext;
+		ClassLoader bundleCl = bundleContext.getBundle().adapt(BundleWiring.class).getClassLoader();
+		ClassLoader originalCcl = Thread.currentThread().getContextClassLoader();
+		try {
+//			Thread.currentThread().setContextClassLoader(bundleCl);// GraalVM needs it to be before creating manager
+//			ScriptEngineManager scriptEngineManager = new ScriptEngineManager(bundleCl);
+//			engine = scriptEngineManager.getEngineByName("JavaScript");
+//			if (engine == null) {// Nashorn
+//				Thread.currentThread().setContextClassLoader(originalCcl);
+//				scriptEngineManager = new ScriptEngineManager();
+//				Thread.currentThread().setContextClassLoader(bundleCl);
+//				engine = scriptEngineManager.getEngineByName("JavaScript");
+//			}
+			engine = loadScriptEngine(originalCcl, bundleCl);
+
+			// Load script
+			URL appUrl = bundleContext.getBundle().getEntry("cms/app.js");
+			// System.out.println("Loading " + appUrl);
+			// System.out.println("Loading " + appUrl.getHost());
+			// System.out.println("Loading " + appUrl.getPath());
+
+			CmsScriptApp app = new CmsScriptApp(engine);
+			engine.put(APP, app);
+			engine.put(BC, bundleContext);
+			try (Reader reader = new InputStreamReader(appUrl.openStream())) {
+				engine.eval(reader);
+			} catch (IOException | ScriptException e) {
+				throw new CmsException("Cannot execute " + appUrl, e);
+			}
+
+			if (log.isDebugEnabled())
+				log.debug("CMS script app initialized from " + appUrl);
+
+		} catch (Exception e) {
+			e.printStackTrace();
+		} finally {
+			Thread.currentThread().setContextClassLoader(originalCcl);
+		}
+	}
+
+	public void destroy(BundleContext bundleContext) {
+		engine = null;
+	}
+
+	@Override
+	public void configure(Application application) {
+		load(application);
+	}
+
+	void load(Application application) {
+		CmsScriptApp app = getApp();
+		app.apply(bundleContext, repository, application);
+		if (log.isDebugEnabled())
+			log.debug("CMS script app loaded to " + app.getWebPath());
+	}
+
+	CmsScriptApp getApp() {
+		if (engine == null)
+			throw new IllegalStateException("CMS script app is not initialized");
+		return (CmsScriptApp) engine.get(APP);
+	}
+
+	void update() {
+
+		try {
+			bundleContext.getBundle().update();
+		} catch (BundleException e) {
+			e.printStackTrace();
+		}
+	}
+
+	public void setRepository(Repository repository) {
+		this.repository = repository;
+	}
+
+	private static ScriptEngine loadScriptEngine(ClassLoader originalCcl, ClassLoader bundleCl) {
+		Thread.currentThread().setContextClassLoader(bundleCl);// GraalVM needs it to be before creating manager
+		ScriptEngineManager scriptEngineManager = new ScriptEngineManager(bundleCl);
+		ScriptEngine engine = scriptEngineManager.getEngineByName("JavaScript");
+		if (engine == null) {// Nashorn
+			Thread.currentThread().setContextClassLoader(originalCcl);
+			scriptEngineManager = new ScriptEngineManager();
+			Thread.currentThread().setContextClassLoader(bundleCl);
+			engine = scriptEngineManager.getEngineByName("JavaScript");
+		}
+		return engine;
+	}
+}