dendi-wang/thingsboard
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eval is not thread safe. Added lock to avoid 'No such function invokeInternalXXX' exception (#4211)

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* eval is not thread safe. Added lock to avoid 'No such function invokeInternalXXX' exception

* License fix
This commit is contained in:
VoBa 2021-03-05 18:18:58 +02:00 committed by GitHub
parent 6789cff802
commit 953054fadc
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 4 deletions
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8
application/src/main/java/org/thingsboard/server/service/script/AbstractNashornJsInvokeService.java
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@ -40,6 +40,7 @@ import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReentrantLock;
@Slf4j
public abstract class AbstractNashornJsInvokeService extends AbstractJsInvokeService {
@ -56,6 +57,8 @@ public abstract class AbstractNashornJsInvokeService extends AbstractJsInvokeSer
private final FutureCallback<UUID> evalCallback = new JsStatCallback<>(jsEvalMsgs, jsTimeoutMsgs, jsFailedMsgs);
private final FutureCallback<Object> invokeCallback = new JsStatCallback<>(jsInvokeMsgs, jsTimeoutMsgs, jsFailedMsgs);
private final ReentrantLock evalLock = new ReentrantLock();
@Getter
private final JsExecutorService jsExecutor;
@ -120,12 +123,17 @@ public abstract class AbstractNashornJsInvokeService extends AbstractJsInvokeSer
protected ListenableFuture<UUID> doEval(UUID scriptId, String functionName, String jsScript) {
jsPushedMsgs.incrementAndGet();
ListenableFuture<UUID> result = jsExecutor.executeAsync(() -> {
try {
evalLock.lock();
try {
if (useJsSandbox()) {
sandbox.eval(jsScript);
} else {
engine.eval(jsScript);
}
} finally {
evalLock.unlock();
}
scriptIdToNameMap.put(scriptId, functionName);
return scriptId;
} catch (Exception e) {