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file hashing

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Zlatin Balevsky 2019-11-23 20:28:29 +02:00
parent e8a3db76bb
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doc/architecture.md
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@ -22,7 +22,7 @@ class MyEvent extends Event {
}
```
2. Define one or more classes thatt will be notified of your events:
2. Define one or more classes that will be notified of your events:
```
package mypackage
@ -51,4 +51,9 @@ eventBus.publish(myEvent)
Threading: the event bus creates a dedicated thread and all events are dispatched on that thread, regardless which thread publishes them.
### Sharing files
The UI publishes an event of type `com.muwire.core.files.FileSharedEvent` which contains a `java.io.File` reference to the file the user has chosen to share. A component in the core called `HasherService` listens for these events, and when it receives notification that a FileSharedEvent has been posted it pereforms some sanity checks, then offloads the actual hashing to a dedicated thread.
Before the hashing begins, another event of type `com.muwire.core.files.FileHashingEvent` is published that contains the name of the file. At the moment that event serves only to update the UI with the current file being hashed.
When the hashing completes, a `com.muwire.core.files.FileHashedEvent` is published by the HasherService. The UI listens to this event and updates its list of shared files. Another core component called `FileManager` also listens for such events and updates the interenal search index from the file name.