Pebble updates

- Pebble template files not found when running integration test fix #936
- pebble 2.4.0 fix #940

Author: jknack

jooby/src/main/java/org/jooby/internal/AbstractRendererContext.java

@@ -212,6 +212,7 @@
 import java.nio.channels.FileChannel;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -257,25 +258,26 @@ public AbstractRendererContext(final List<Renderer> renderers,
 
   public void render(final Object value) throws Exception {
     int i = 0;
-    List<String> notFound = new ArrayList<>();
+    FileNotFoundException notFound = null;
     while (!committed && i < rsize) {
       Renderer next = renderers.get(i);
       try {
         next.render(value, this);
-      } catch (FileNotFoundException ex) {
+      } catch (FileNotFoundException x) {
         // view engine should recover from a template not found
         if (next instanceof View.Engine) {
-          notFound.add(next.toString());
+          if (notFound == null) {
+            notFound = x;
+          }
         } else {
-          throw ex;
+          throw x;
         }
       }
       i += 1;
     }
     if (!committed) {
-      if (notFound.size() > 0) {
-        throw new FileNotFoundException("Template not found: " + ((View) value).name() + " in "
-            + notFound);
+      if (notFound != null) {
+        throw notFound;
       }
       throw new Err(Status.NOT_ACCEPTABLE, Joiner.on(", ").join(produces));
     }

modules/jooby-pebble/src/main/java/org/jooby/pebble/Pebble.java

@@ -203,6 +203,7 @@
  */
 package org.jooby.pebble;
 
+import com.google.common.base.Strings;
 import static java.util.Objects.requireNonNull;
 
 import java.util.function.BiConsumer;
@@ -428,9 +429,9 @@ private static Loader<String> loader(final String prefix, final String suffix) {
   private static String safePrefix(final String prefix) {
     if (prefix != null && prefix.length() > 0) {
       if (prefix.startsWith("/")) {
-        String rewrite = prefix.substring(1);
-        return rewrite.length() == 0 ? null : rewrite;
+        return Strings.emptyToNull(prefix.substring(1));
       }
+      return prefix;
     }
     return null;
   }

modules/jooby-pebble/src/main/java/org/jooby/pebble/PebbleRenderer.java

@@ -209,9 +209,11 @@
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Optional;
 
 import org.jooby.MediaType;
 import org.jooby.Renderer;
+import org.jooby.Route;
 import org.jooby.View;
 
 import com.mitchellbosecke.pebble.PebbleEngine;
@@ -232,6 +234,9 @@ public void render(final View view, final Renderer.Context ctx) throws Exception
     try {
       Map<String, Object> locals = ctx.locals();
 
+      if (vname.charAt(0) == '/') {
+        vname = vname.substring(1);
+      }
       PebbleTemplate template = pebble.getTemplate(vname);
       Writer writer = new StringWriter();
       Map<String, Object> model = new HashMap<>();
@@ -253,7 +258,9 @@ public void render(final View view, final Renderer.Context ctx) throws Exception
       ctx.type(MediaType.html)
           .send(writer.toString());
     } catch (LoaderException x) {
-      throw new FileNotFoundException(vname);
+      FileNotFoundException fnf = new FileNotFoundException(x.getMessage().replace("Could not find template", "").trim());
+      fnf.initCause(x);
+      throw fnf;
     }
   }
 

modules/jooby-pebble/src/test/java/org/jooby/pebble/PebbleRendererTest.java

@@ -64,4 +64,45 @@ public void render() throws Exception {
           assertEquals("pebble", engine.toString());
         });
   }
+
+  @SuppressWarnings({"rawtypes", "unchecked" })
+  @Test
+  public void renderWithLeadingSlash() throws Exception {
+    new MockUnit(PebbleEngine.class, View.class, Renderer.Context.class)
+        .expect(unit -> {
+          Locale locale = Locale.UK;
+          Map vmodel = unit.mock(Map.class);
+          Map<String, Object> locals = unit.mock(Map.class);
+          expect(locals.getOrDefault("locale", locale)).andReturn(locale);
+
+          Map model = unit.constructor(HashMap.class).build();
+          model.putAll(locals);
+          expect(model.putIfAbsent("_vname", "vname")).andReturn(null);
+          expect(model.putIfAbsent("locale", locale)).andReturn(null);
+          model.putAll(vmodel);
+
+          View view = unit.get(View.class);
+          expect(view.name()).andReturn("/vname");
+          expect(view.model()).andReturn(vmodel);
+
+          StringWriter writer = unit.constructor(StringWriter.class).build();
+
+          Renderer.Context ctx = unit.get(Renderer.Context.class);
+          expect(ctx.locale()).andReturn(locale);
+          expect(ctx.locals()).andReturn(locals);
+          expect(ctx.type(MediaType.html)).andReturn(ctx);
+          ctx.send(writer.toString());
+
+          PebbleTemplate template = unit.mock(PebbleTemplate.class);
+          template.evaluate(writer, model, locale);
+
+          PebbleEngine pebble = unit.get(PebbleEngine.class);
+          expect(pebble.getTemplate("vname")).andReturn(template);
+        })
+        .run(unit -> {
+          PebbleRenderer engine = new PebbleRenderer(unit.get(PebbleEngine.class));
+          engine.render(unit.get(View.class), unit.get(Renderer.Context.class));
+          assertEquals("pebble", engine.toString());
+        });
+  }
 }

modules/jooby-pebble/src/test/java/org/jooby/pebble/PebbleTest.java

@@ -178,6 +178,33 @@ public void noEmptyPrefix() throws Exception {
         });
   }
 
+  @Test
+  public void prefixNoLeadingSlash() throws Exception {
+    Locale locale = Locale.getDefault();
+    new MockUnit(Env.class, Config.class, Binder.class, PebbleEngine.class)
+        .expect(unit -> {
+          ClasspathLoader loader = unit.constructor(ClasspathLoader.class).build();
+          loader.setPrefix("views");
+          loader.setSuffix(".html");
+          unit.registerMock(ClasspathLoader.class, loader);
+        })
+        .expect(newEngine)
+        .expect(env("dev", locale))
+        .expect(cacheStatic)
+        .expect(cache("pebble.cache", null))
+        .expect(cache(0))
+        .expect(cache("pebble.tagCache", null))
+        .expect(tagCache(0))
+        .expect(locale(locale))
+        .expect(build)
+        .expect(bindEngine)
+        .expect(renderer)
+        .run(unit -> {
+          new Pebble("views", ".html")
+              .configure(unit.get(Env.class), unit.get(Config.class), unit.get(Binder.class));
+        });
+  }
+
   @Test
   public void proddef() throws Exception {
     Locale locale = Locale.getDefault();

pom.xml

@@ -3037,7 +3037,7 @@ org.eclipse.jdt.apt.processorOptions/defaultOverwrite=true
     <jruby.version>9.0.1.0</jruby.version>
     <j2v8.version>4.6.0</j2v8.version>
     <metrics.version>3.1.2</metrics.version>
-    <pebble.version>2.2.1</pebble.version>
+    <pebble.version>2.4.0</pebble.version>
     <jade4j.version>1.1.4</jade4j.version>
     <jsoup.version>1.8.3</jsoup.version>
     <rxjava.version>1.1.5</rxjava.version>