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Script engines now unloaded if replaced, and closed if AutoCloseable (#2681) 

Signed-off-by: Jonathan Gilbert <jpg@trillica.com>
pull/2668/head
Jonathan Gilbert 2022-01-15 12:15:46 +00:00 committed by GitHub
parent d693302190
commit 22c28595ab
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 2 deletions
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22
bundles/org.openhab.core.automation.module.script/src/main/java/org/openhab/core/automation/module/script/internal/ScriptEngineManagerImpl.java
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@ -122,6 +122,11 @@ public class ScriptEngineManagerImpl implements ScriptEngineManager {
public @Nullable ScriptEngineContainer createScriptEngine(String scriptType, String engineIdentifier) {
ScriptEngineContainer result = null;
ScriptEngineFactory engineFactory = findEngineFactory(scriptType);
if (loadedScriptEngineInstances.containsKey(engineIdentifier)) {
removeEngine(engineIdentifier);
}
if (engineFactory == null) {
logger.error("ScriptEngine for language '{}' could not be found for identifier: {}", scriptType,
engineIdentifier);
@ -195,8 +200,9 @@ public class ScriptEngineManagerImpl implements ScriptEngineManager {
public void removeEngine(String engineIdentifier) {
ScriptEngineContainer container = loadedScriptEngineInstances.get(engineIdentifier);
if (container != null) {
if (container.getScriptEngine() instanceof Invocable) {
Invocable inv = (Invocable) container.getScriptEngine();
ScriptEngine scriptEngine = container.getScriptEngine();
if (scriptEngine instanceof Invocable) {
Invocable inv = (Invocable) scriptEngine;
try {
inv.invokeFunction("scriptUnloaded");
} catch (NoSuchMethodException e) {
@ -207,6 +213,18 @@ public class ScriptEngineManagerImpl implements ScriptEngineManager {
} else {
logger.trace("ScriptEngine does not support Invocable interface");
}
if (scriptEngine instanceof AutoCloseable) {
AutoCloseable closeable = (AutoCloseable) scriptEngine;
try {
closeable.close();
} catch (Exception e) {
logger.error("Error while closing script engine", e);
}
} else {
logger.trace("ScriptEngine does not support AutoCloseable interface");
}
removeScriptExtensions(engineIdentifier);
}
}