sruehl commented on a change in pull request #57: Feature/plc4 x 108 ping method
URL: https://github.com/apache/incubator-plc4x/pull/57#discussion_r270367844
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File path:
plc4j/protocols/driver-bases/base/src/main/java/org/apache/plc4x/java/base/connection/AbstractPlcConnection.java
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@@ -57,6 +67,42 @@ public boolean canSubscribe() {
return false;
}
+ /**
+ * The default implementation uses the {@link #ping(int)} method.
+ * Drivers that want to implement a more specific version have to overide
it.
+ */
+ @Override
+ public boolean isConnected() {
+ return ping(PING_TIMEOUT_MS);
Review comment:
with a or so we don't try to send a ping in first place if we don't have an
active channel
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