Examples of com.google.appengine.api.datastore.DatastoreServiceConfig

Package com.google.appengine.api.datastore

Examples of com.google.appengine.api.datastore.DatastoreServiceConfig

com.google.appengine.api.datastore.DatastoreServiceConfig
tually consistent reads DatastoreServiceConfig config = withReadPolicy(new ReadPolicy(Consistency.EVENTUAL)); // eventually consistent reads with a 5 second deadline DatastoreServiceConfig config = withReadPolicy(new ReadPolicy(Consistency.EVENTUAL)).deadline(5.0);

    props.put("datanucleus.datastoreWriteTimeout", "335");
    props.put(DatastoreManager.DATASTORE_READ_CONSISTENCY_PROPERTY, ReadPolicy.Consistency.EVENTUAL.name());
    emf = Persistence.createEntityManagerFactory(getEntityManagerFactoryName().name(), props);
    em = emf.createEntityManager();
    DatastoreManager storeMgr = (DatastoreManager) getExecutionContext().getStoreManager();
    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    assertEquals(.334d, config.getDeadline());
    assertEquals(new ReadPolicy(ReadPolicy.Consistency.EVENTUAL), config.getReadPolicy());
    config = storeMgr.getDefaultDatastoreServiceConfigForWrites();
    assertEquals(.335d, config.getDeadline());
    assertEquals(new ReadPolicy(ReadPolicy.Consistency.EVENTUAL), config.getReadPolicy());
  }

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    em.close();
    emf.close();
    emf = Persistence.createEntityManagerFactory("datastoreserviceconfigprops");
    em = emf.createEntityManager();
    DatastoreManager storeMgr = (DatastoreManager) getExecutionContext().getStoreManager();
    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    assertEquals(5.0d, config.getDeadline());
    assertEquals(new ReadPolicy(ReadPolicy.Consistency.EVENTUAL), config.getReadPolicy());
    config = storeMgr.getDefaultDatastoreServiceConfigForWrites();
    assertEquals(10.0d, config.getDeadline());
    assertEquals(new ReadPolicy(ReadPolicy.Consistency.EVENTUAL), config.getReadPolicy());
    em.close();
    emf.close();
  }

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    props.put("datanucleus.datastoreReadTimeout", "333");
    props.put("javax.persistence.query.timeout", "334");
    emf = Persistence.createEntityManagerFactory(getEntityManagerFactoryName().name(), props);
    em = emf.createEntityManager();
    DatastoreManager storeMgr = (DatastoreManager) getExecutionContext().getStoreManager();
    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    assertEquals(.333d, config.getDeadline());
  }

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  private final List<Long> sequenceBatchSizes = Utils.newArrayList();


  @Override
  protected void setUp() throws Exception {
    super.setUp();
    DatastoreServiceConfig config = getStoreManager().getDefaultDatastoreServiceConfigForReads();
    DatastoreServiceFactoryInternal.setDatastoreService(
        new BaseDatastoreServiceDelegate(DatastoreServiceFactoryInternal.getDatastoreService(config)) {
      @Override
      public KeyRange allocateIds(String kind, long size) {
        sequenceNames.add(kind);

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    return f1;
  }


  BatchRecorder newBatchRecorder() {
    DatastoreServiceConfig config = getStoreManager().getDefaultDatastoreServiceConfigForReads();
    return new BatchRecorder(config) {
      boolean isBatchMethod(Method method) {
        return method.getName().equals("put") && List.class.isAssignableFrom(method.getReturnType());
      }
    };

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    return createDatastoreServiceConfigPrototype(persistenceConfig, WRITE_TIMEOUT_PROPERTY);
  }


  private DatastoreServiceConfig createDatastoreServiceConfigPrototype(
      PersistenceConfiguration persistenceConfiguration, String... timeoutProps) {
    DatastoreServiceConfig datastoreServiceConfig = DatastoreServiceConfig.Builder.withDefaults();


    for (String timeoutProp : timeoutProps) {
      int defaultDeadline = persistenceConfiguration.getIntProperty(timeoutProp);
      if (defaultDeadline > 0) {
        datastoreServiceConfig.deadline(defaultDeadline / 1000d);
      }
    }
    String defaultReadConsistencyStr = persistenceConfiguration.getStringProperty(
        DATASTORE_READ_CONSISTENCY_PROPERTY);
    if (defaultReadConsistencyStr != null) {
      try {
        datastoreServiceConfig.readPolicy(new ReadPolicy(Consistency.valueOf(defaultReadConsistencyStr)));
      } catch (IllegalArgumentException iae) {
        throw new FatalNucleusUserException(
            "Illegal value for " + DATASTORE_READ_CONSISTENCY_PROPERTY +
            ".  Valid values are " + Arrays.toString(Consistency.values()));
      }

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  public DatastoreServiceConfig getDefaultDatastoreServiceConfigForWrites() {
    return copyDatastoreServiceConfig(defaultDatastoreServiceConfigPrototypeForWrites);
  }


  private static DatastoreServiceConfig copyDatastoreServiceConfig(DatastoreServiceConfig config) {
    DatastoreServiceConfig newConfig = DatastoreServiceConfig.Builder.
        withImplicitTransactionManagementPolicy(config.getImplicitTransactionManagementPolicy()).
        readPolicy(config.getReadPolicy());


    if (config.getDeadline() != null) {
      newConfig.deadline(config.getDeadline());
    }
    return config;
  }

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  protected ValueGenerationBlock reserveBlock(long size) {
    if (sequenceName == null) {
      // shouldn't happen
      throw new IllegalStateException("sequence name is null");
    }
    DatastoreServiceConfig config = ((DatastoreManager) storeMgr).getDefaultDatastoreServiceConfigForWrites();
    DatastoreService ds = DatastoreServiceFactoryInternal.getDatastoreService(config);
    KeyRange range = ds.allocateIds(sequenceName, size);
    // Too bad we can't pass an iterable and construct the ids
    // on demand.
    List<Long> ids = Utils.newArrayList();

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    return createDatastoreServiceConfigPrototype(persistenceConfig, WRITE_TIMEOUT_PROPERTY);
  }


  private DatastoreServiceConfig createDatastoreServiceConfigPrototype(
      PersistenceConfiguration persistenceConfiguration, String... timeoutProps) {
    DatastoreServiceConfig datastoreServiceConfig = DatastoreServiceConfig.Builder.withDefaults();


    for (String timeoutProp : timeoutProps) {
      int defaultDeadline = persistenceConfiguration.getIntProperty(timeoutProp);
      if (defaultDeadline > 0) {
        datastoreServiceConfig.deadline(defaultDeadline / 1000d);
      }
    }
    String defaultReadConsistencyStr = persistenceConfiguration.getStringProperty(
        DATASTORE_READ_CONSISTENCY_PROPERTY);
    if (defaultReadConsistencyStr != null) {
      try {
        datastoreServiceConfig.readPolicy(new ReadPolicy(Consistency.valueOf(defaultReadConsistencyStr)));
      } catch (IllegalArgumentException iae) {
        throw new FatalNucleusUserException(
            "Illegal value for " + DATASTORE_READ_CONSISTENCY_PROPERTY +
            ".  Valid values are " + Arrays.toString(Consistency.values()));
      }

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  public DatastoreServiceConfig getDefaultDatastoreServiceConfigForWrites() {
    return copyDatastoreServiceConfig(defaultDatastoreServiceConfigPrototypeForWrites);
  }


  private static DatastoreServiceConfig copyDatastoreServiceConfig(DatastoreServiceConfig config) {
    DatastoreServiceConfig newConfig = DatastoreServiceConfig.Builder.
        withImplicitTransactionManagementPolicy(config.getImplicitTransactionManagementPolicy()).
        readPolicy(config.getReadPolicy());


    if (config.getDeadline() != null) {
      newConfig.deadline(config.getDeadline());
    }
    return newConfig;
  }

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com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection

com.google.appengine.datanucleus.DatastoreManager

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