Examples of org.apache.wicket.pageStore.AsynchronousDataStore

org.apache.wicket.pageStore.AsynchronousDataStore
Facade for {@link IDataStore} that does the actual saving in worker thread.
Creates an {@link Entry} for each triple (sessionId, pageId, data) and puts it in{@link #entries} queue if there is room. Acts as producer.
Later {@link PageSavingRunnable} reads in blocking manner from {@link #entries} and saves eachentry. Acts as consumer.
It starts only one instance of {@link PageSavingRunnable} because all we need is to make the pagestoring asynchronous. We don't want to write concurrently in the wrapped {@link IDataStore}, though it may happen in the extreme case when the queue is full. These cases should be avoided. @author Matej Knopp

  public void test1()
  {
    generateFiles();


    dataStore = new DiskDataStore("app1", MAX_SIZE_PER_SESSION, FILE_CHANNEL_POOL_CAPACITY);
    dataStore = new AsynchronousDataStore(dataStore);


    doTestDataStore();


    dataStore.destroy();
  }

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          public IPageManager get(IPageManagerContext pageManagerContext)
          {


            final IDataStore dataStore = new InMemoryPageStore();
            final AsynchronousDataStore asyncDS = new AsynchronousDataStore(dataStore);
            final DefaultPageStore pageStore = new DefaultPageStore(
              application.getName(), asyncDS, 40);
            return new PersistentPageManager(application.getName(), pageStore,
              pageManagerContext);
          }

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          @Override
          public IPageManager get(IPageManagerContext pageManagerContext)
          {


            final IDataStore dataStore = new InMemoryPageStore();
            final AsynchronousDataStore asyncDS = new AsynchronousDataStore(dataStore,
              100);
            final DefaultPageStore pageStore = new DefaultPageStore(new JavaSerializer(
              application.getApplicationKey()), asyncDS, 40);
            return new PageStoreManager(application.getName(), pageStore,
              pageManagerContext);

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    IStoreSettings storeSettings = getStoreSettings();


    if (dataStore.canBeAsynchronous())
    {
      int capacity = storeSettings.getAsynchronousQueueCapacity();
      dataStore = new AsynchronousDataStore(dataStore, capacity);
    }


    IPageStore pageStore = newPageStore(dataStore);
    return new PageStoreManager(application.getName(), pageStore, pageManagerContext);

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    // TODO Wicket.next: add IDataStore#canWorkAsynchronous() and replace the instanceof check
    // below
    if (storeSettings.isAsynchronous() && dataStore instanceof DiskDataStore)
    {
      int capacity = storeSettings.getAsynchronousQueueCapacity();
      dataStore = new AsynchronousDataStore(dataStore, capacity);
    }


    IPageStore pageStore = newPageStore(dataStore);
    return new PageStoreManager(application.getName(), pageStore, pageManagerContext);

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          public IPageManager get(IPageManagerContext pageManagerContext)
          {


            final IDataStore dataStore = new InMemoryPageStore();
            final AsynchronousDataStore asyncDS = new AsynchronousDataStore(dataStore,
              100);
            final DefaultPageStore pageStore = new DefaultPageStore(new JavaSerializer(
              application.getApplicationKey()), asyncDS, 40);
            return new PageStoreManager(application.getName(), pageStore,
              pageManagerContext);

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    IStoreSettings storeSettings = new StoreSettings(null);
    java.io.File fileStoreFolder = storeSettings.getFileStoreFolder();


    dataStore = new DiskDataStore("app1", fileStoreFolder, MAX_SIZE_PER_SESSION);
    int asynchronousQueueCapacity = storeSettings.getAsynchronousQueueCapacity();
    dataStore = new AsynchronousDataStore(dataStore, asynchronousQueueCapacity);


    doTestDataStore();


    dataStore.destroy();
  }

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    IStoreSettings storeSettings = new StoreSettings(null);
    java.io.File fileStoreFolder = storeSettings.getFileStoreFolder();


    dataStore = new DiskDataStore("app1", fileStoreFolder, MAX_SIZE_PER_SESSION);
    int asynchronousQueueCapacity = storeSettings.getAsynchronousQueueCapacity();
    dataStore = new AsynchronousDataStore(dataStore, asynchronousQueueCapacity);


    doTestDataStore();


    dataStore.destroy();
  }

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org.apache.wicket.page.persistent.disk.DiskDataStoreTest

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