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Don't allow LifecycleManager to start and stop concurrently. Bug #68.

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akwizgran
2014-05-02 15:15:47 +01:00
parent adf9adf1af
commit e1d099903d
4 changed files with 71 additions and 24 deletions
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39
briar-api/src/org/briarproject/api/lifecycle/LifecycleManager.java
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@@ -2,8 +2,17 @@ package org.briarproject.api.lifecycle;
import java.util.concurrent.ExecutorService;
/**
* Manages the lifecycle of the app, starting and stopping {@link Service
* Services}, shutting down {@link java.util.concurrent.ExecutorService
* ExecutorServices}, and opening and closing the {@link
* org.briarproject.api.db.DatabaseComponent DatabaseComponent}.
*/
public interface LifecycleManager {
/** The result of calling {@link LifecycleManager#startServices()}. */
enum StartResult { ALREADY_RUNNING, DB_ERROR, SERVICE_ERROR, SUCCESS }
/** Registers a {@link Service} to be started and stopped. */
public void register(Service s);
@@ -14,27 +23,37 @@ public interface LifecycleManager {
public void registerForShutdown(ExecutorService e);
/**
* Starts any registered {@link Service}s and returns true if all services
* started successfully.
* Starts any registered {@link Service Services} and opens the {@link
* org.briarproject.api.db.DatabaseComponent DatabaseComponent}.
*/
public boolean startServices();
public StartResult startServices();
/**
* Stops any registered {@link Service}s and shuts down any registered
* {@link java.util.concurrent.ExecutorService ExecutorService}s.
* Stops any registered {@link Service Services}, shuts down any
* registered {@link java.util.concurrent.ExecutorService ExecutorServices},
* and closes the {@link org.briarproject.api.db.DatabaseComponent
* DatabaseComponent}.
*/
public void stopServices();
/** Waits for the database to be opened before returning. */
/**
* Waits for the {@link org.briarproject.api.db.DatabaseComponent
* DatabaseComponent} to be opened before returning.
*/
public void waitForDatabase() throws InterruptedException;
/** Waits for all registered {@link Service}s to start before returning. */
/**
* Waits for the {@link org.briarproject.api.db.DatabaseComponent
* DatabaseComponent} to be opened and all registered {@link Service
* Services} to start before returning.
*/
public void waitForStartup() throws InterruptedException;
/**
* Waits for all registered {@link Service}s to stop and all registered
* {@link java.util.concurrent.ExecutorService ExecutorService}s to shut
* down before returning.
* Waits for all registered {@link Service Services} to stop, all
* registered {@link java.util.concurrent.ExecutorService ExecutorServices}
* to shut down, and the {@link org.briarproject.api.db.DatabaseComponent
* DatabaseComponent} to be closed before returning.
*/
public void waitForShutdown() throws InterruptedException;
}