[jsscripting] Implement javax.script.Compilable (openhab#16970)

* [jsscripting] Restructure & Comment POM
* [jsscripting] Use OPENHAB_TRANSFORMATION_SCRIPT constant from core

Signed-off-by: Florian Hotze <[email protected]>
(cherry picked from commit 405f402)

Author: florian-h05

bundles/org.openhab.automation.jsscripting/pom.xml

@@ -27,6 +27,7 @@
 
   <build>
     <plugins>
+      <!-- exclude META-INF/services/com.oracle.truffle.api.TruffleLanguage$Provider when unpacking dependencies -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
@@ -42,6 +43,7 @@
           </execution>
         </executions>
       </plugin>
+      <!-- bundle the openhab-js library -->
       <plugin>
         <groupId>com.github.eirslett</groupId>
         <artifactId>frontend-maven-plugin</artifactId>
@@ -112,6 +114,7 @@
           </execution>
         </executions>
       </plugin>
+      <!-- run SAT -->
       <plugin>
         <groupId>org.openhab.tools.sat</groupId>
         <artifactId>sat-plugin</artifactId>
@@ -123,32 +126,33 @@
   </build>
 
   <dependencies>
+    <dependency>
+      <groupId>org.graalvm.sdk</groupId>
+      <artifactId>graal-sdk</artifactId>
+      <version>${graal.version}</version>
+    </dependency>
     <dependency>
       <groupId>org.graalvm.truffle</groupId>
       <artifactId>truffle-api</artifactId>
       <version>${graal.version}</version>
     </dependency>
+    <!-- Graal JavaScript ScriptEngine JSR 223 support -->
     <dependency>
       <groupId>org.graalvm.js</groupId>
       <artifactId>js-scriptengine</artifactId>
       <version>${graal.version}</version>
     </dependency>
-    <dependency>
-      <groupId>org.graalvm.sdk</groupId>
-      <artifactId>graal-sdk</artifactId>
-      <version>${graal.version}</version>
-    </dependency>
+    <!-- Graal TRegex engine (internally used by Graal JavaScript engine) -->
     <dependency>
       <groupId>org.graalvm.regex</groupId>
       <artifactId>regex</artifactId>
       <version>${graal.version}</version>
     </dependency>
-    <dependency> <!-- this must come AFTER the regex lib -->
+    <!-- Graal JavaScript engine (depends on Graal TRegex engine, must be added after it) -->
+    <dependency>
       <groupId>org.graalvm.js</groupId>
       <artifactId>js</artifactId>
       <version>${graal.version}</version>
     </dependency>
-    <!-- GraalJS changelog says that com.ibm.icu/icu4j is not required for GraalJS >= 22.0.0 as it moved to org.graalvm.truffle;
-      but GraalJS >= 22.2.0 requires it, so we'll need to add it when we upgrade -->
   </dependencies>
 </project>

bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/DebuggingGraalScriptEngine.java

@@ -12,16 +12,19 @@
  */
 package org.openhab.automation.jsscripting.internal;
 
+import static org.openhab.core.automation.module.script.ScriptTransformationService.OPENHAB_TRANSFORMATION_SCRIPT;
+
 import java.util.Arrays;
 import java.util.stream.Collectors;
 
+import javax.script.Compilable;
 import javax.script.Invocable;
 import javax.script.ScriptContext;
 import javax.script.ScriptEngine;
 
 import org.eclipse.jdt.annotation.Nullable;
 import org.graalvm.polyglot.PolyglotException;
-import org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable;
+import org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -31,10 +34,9 @@
  * @author Jonathan Gilbert - Initial contribution
  * @author Florian Hotze - Improve logger name, Fix memory leak caused by exception logging
  */
-class DebuggingGraalScriptEngine<T extends ScriptEngine & Invocable & AutoCloseable>
-        extends InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable<T> {
+class DebuggingGraalScriptEngine<T extends ScriptEngine & Invocable & AutoCloseable & Compilable>
+        extends InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable<T> {
 
-    private static final String SCRIPT_TRANSFORMATION_ENGINE_IDENTIFIER = "openhab-transformation-script-";
     private static final int STACK_TRACE_LENGTH = 5;
 
     private @Nullable Logger logger;
@@ -91,9 +93,8 @@ private void initializeLogger() {
         } else if (ruleUID != null) {
             identifier = ruleUID.toString();
         } else if (ohEngineIdentifier != null) {
-            if (ohEngineIdentifier.toString().startsWith(SCRIPT_TRANSFORMATION_ENGINE_IDENTIFIER)) {
-                identifier = ohEngineIdentifier.toString().replaceAll(SCRIPT_TRANSFORMATION_ENGINE_IDENTIFIER,
-                        "transformation.");
+            if (ohEngineIdentifier.toString().startsWith(OPENHAB_TRANSFORMATION_SCRIPT)) {
+                identifier = ohEngineIdentifier.toString().replaceAll(OPENHAB_TRANSFORMATION_SCRIPT, "transformation.");
             }
         }
 

bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/OpenhabGraalJSScriptEngine.java

@@ -50,7 +50,7 @@
 import org.openhab.automation.jsscripting.internal.fs.PrefixedSeekableByteChannel;
 import org.openhab.automation.jsscripting.internal.fs.ReadOnlySeekableByteArrayChannel;
 import org.openhab.automation.jsscripting.internal.fs.watch.JSDependencyTracker;
-import org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable;
+import org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable;
 import org.openhab.core.automation.module.script.ScriptExtensionAccessor;
 import org.openhab.core.items.Item;
 import org.openhab.core.library.types.QuantityType;
@@ -69,7 +69,7 @@
  *         {@link Lock} for multi-thread synchronization; globals and openhab-js injection code caching
  */
 public class OpenhabGraalJSScriptEngine
-        extends InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable<GraalJSScriptEngine> {
+        extends InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable<GraalJSScriptEngine> {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(OpenhabGraalJSScriptEngine.class);
     private static final Source GLOBAL_SOURCE;

bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/scriptengine/DelegatingScriptEngineWithInvocableAndAutocloseable.java bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/scriptengine/DelegatingScriptEngineWithInvocableAndCompilableAndAutocloseable.java

@@ -15,6 +15,8 @@
 import java.io.Reader;
 
 import javax.script.Bindings;
+import javax.script.Compilable;
+import javax.script.CompiledScript;
 import javax.script.Invocable;
 import javax.script.ScriptContext;
 import javax.script.ScriptEngine;
@@ -29,11 +31,11 @@
  *
  * @author Jonathan Gilbert - Initial contribution
  */
-public abstract class DelegatingScriptEngineWithInvocableAndAutocloseable<T extends ScriptEngine & Invocable & AutoCloseable>
-        implements ScriptEngine, Invocable, AutoCloseable {
+public abstract class DelegatingScriptEngineWithInvocableAndCompilableAndAutocloseable<T extends ScriptEngine & Invocable & Compilable & AutoCloseable>
+        implements ScriptEngine, Invocable, Compilable, AutoCloseable {
     protected @NonNull T delegate;
 
-    public DelegatingScriptEngineWithInvocableAndAutocloseable(@NonNull T delegate) {
+    public DelegatingScriptEngineWithInvocableAndCompilableAndAutocloseable(@NonNull T delegate) {
         this.delegate = delegate;
     }
 
@@ -128,6 +130,16 @@ public <T> T getInterface(Object o, Class<T> aClass) {
         return delegate.getInterface(o, aClass);
     }
 
+    @Override
+    public CompiledScript compile(String s) throws ScriptException {
+        return delegate.compile(s);
+    }
+
+    @Override
+    public CompiledScript compile(Reader reader) throws ScriptException {
+        return delegate.compile(reader);
+    }
+
     @Override
     public void close() throws Exception {
         delegate.close();

bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/scriptengine/InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable.java bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/scriptengine/InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable.java

@@ -16,22 +16,24 @@
 import java.lang.reflect.UndeclaredThrowableException;
 
 import javax.script.Bindings;
+import javax.script.Compilable;
+import javax.script.CompiledScript;
 import javax.script.Invocable;
 import javax.script.ScriptContext;
 import javax.script.ScriptEngine;
 import javax.script.ScriptException;
 
 /**
- * Delegate allowing AOP-style interception of calls, either before Invocation, or upon a {@link ScriptException}.
- * being thrown.
+ * Delegate allowing AOP-style interception of calls, either before Invocation, or upon a {@link ScriptException} being
+ * thrown.
  *
  * @param <T> The delegate class
  * @author Jonathan Gilbert - Initial contribution
  */
-public abstract class InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable<T extends ScriptEngine & Invocable & AutoCloseable>
-        extends DelegatingScriptEngineWithInvocableAndAutocloseable<T> {
+public abstract class InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable<T extends ScriptEngine & Invocable & Compilable & AutoCloseable>
+        extends DelegatingScriptEngineWithInvocableAndCompilableAndAutocloseable<T> {
 
-    public InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable(T delegate) {
+    public InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable(T delegate) {
         super(delegate);
     }
 
@@ -155,4 +157,28 @@ public Object invokeFunction(String s, Object... objects)
             throw new UndeclaredThrowableException(afterThrowsInvocation(e)); // Wrap and rethrow other exceptions
         }
     }
+
+    @Override
+    public CompiledScript compile(String s) throws ScriptException {
+        try {
+            beforeInvocation();
+            return (CompiledScript) afterInvocation(super.compile(s));
+        } catch (ScriptException se) {
+            throw (ScriptException) afterThrowsInvocation(se);
+        } catch (Exception e) {
+            throw new UndeclaredThrowableException(afterThrowsInvocation(e)); // Wrap and rethrow other exceptions
+        }
+    }
+
+    @Override
+    public CompiledScript compile(Reader reader) throws ScriptException {
+        try {
+            beforeInvocation();
+            return (CompiledScript) afterInvocation(super.compile(reader));
+        } catch (ScriptException se) {
+            throw (ScriptException) afterThrowsInvocation(se);
+        } catch (Exception e) {
+            throw new UndeclaredThrowableException(afterThrowsInvocation(e)); // Wrap and rethrow other exceptions
+        }
+    }
 }

bundles/org.openhab.automation.jsscripting/suppressions.properties

@@ -1,3 +1,3 @@
 # Please check here how to add suppressions https://maven.apache.org/plugins/maven-pmd-plugin/examples/violation-exclusions.html
 org.openhab.automation.jsscripting.internal.OpenhabGraalJSScriptEngine=UnusedPrivateField
-org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable=AvoidThrowingNullPointerException,AvoidCatchingNPE
+org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndCompilableAndAutoCloseable=AvoidThrowingNullPointerException,AvoidCatchingNPE