Package com.google.appengine.api.datastore

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

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      throw new NucleusUserException("Collection element does not have a primary key.");
    } else if (elementKey.getParent() == null) {
      throw new NucleusUserException("Collection element primary key does not have a parent.");
    }

    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    DatastoreService service = DatastoreServiceFactoryInternal.getDatastoreService(config);
    try {
      Entity e = service.get(elementKey);
      return extractIndexProperty(e, ecs, elementSm.getObjectManager());
    } catch (EntityNotFoundException enfe) {
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    q.addFilter(
        Entity.KEY_RESERVED_PROPERTY, Query.FilterOperator.GREATER_THAN_OR_EQUAL, keys.get(0));
    q.addFilter(
        Entity.KEY_RESERVED_PROPERTY, Query.FilterOperator.LESS_THAN_OR_EQUAL, keys.get(keys.size() - 1));
    q.addSort(Entity.KEY_RESERVED_PROPERTY, Query.SortDirection.DESCENDING);
    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    DatastoreService service = DatastoreServiceFactoryInternal.getDatastoreService(config);
    int[] indices = new int[keys.size()];
    int index = 0;
    for (Entity e : service.prepare(service.getCurrentTransaction(null), q).asIterable()) {
      if (keySet.contains(e.getKey())) {
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      ElementContainerStore ecs) throws MappedDatastoreException {
    JavaTypeMapping orderMapping = ecs.getOrderMapping();
    if (orderMapping == null) {
      return null;
    }
    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    DatastoreService service = DatastoreServiceFactoryInternal.getDatastoreService(config);
    AbstractClassMetaData acmd = ecs.getEmd();
    String kind =
        storeMgr.getIdentifierFactory().newDatastoreContainerIdentifier(acmd).getIdentifierName();
    Query q = new Query(kind);
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      }
      if (fkListStore.getOrderMapping() != null) {
        // now, if there is an order mapping, we need to shift
        // everyone down
        JavaTypeMapping orderMapping = fkListStore.getOrderMapping();
        DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
        DatastoreService service = DatastoreServiceFactoryInternal.getDatastoreService(config);
        AbstractClassMetaData acmd = fkListStore.getEmd();
        String kind =
            storeMgr.getIdentifierFactory().newDatastoreContainerIdentifier(acmd).getIdentifierName();
        Query q = new Query(kind);
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    }
    for (SortPredicate sp : sortPredicates) {
      q.addSort(sp.getPropertyName(), sp.getDirection());
      logger.debug("  Added sort: " + sp.getPropertyName() + " " + sp.getDirection());
    }
    DatastoreServiceConfig config = storeMgr.getDefaultDatastoreServiceConfigForReads();
    DatastoreService ds = DatastoreServiceFactoryInternal.getDatastoreService(config);
    return ds.prepare(q);
  }
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        childClassMetaData).getIdentifierName();
    Entity parentEntity = fieldManager.getEntity();
    // We're going to issue a query for all entities of the given kind with
    // the parent entity's key as their parent.  There should be only 1.
    Query q = new Query(kind, parentEntity.getKey());
    DatastoreServiceConfig config = getStoreManager().getDefaultDatastoreServiceConfigForReads();
    DatastoreService datastoreService = DatastoreServiceFactoryInternal.getDatastoreService(config);
    // We have to pull back all children because the datastore does not let us
    // filter ancestors by depth and an indirect child could come back before a
    // direct child.  eg:
    // a/b/c
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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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    return copyDatastoreServiceConfig(defaultDatastoreServiceConfigPrototypeForWrites);
  }

  // visible for testing
  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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    return executeQuery(qd, fromInclNo, toExclNo);
  }

  private Object executeQuery(QueryData qd, long fromInclNo, long toExclNo) {
    processInFilters(qd);
    DatastoreServiceConfig config = getStoreManager().getDefaultDatastoreServiceConfigForReads();
    if (query.getTimeoutMillis() > 0) {
      // config wants the timeout in seconds
      config.deadline(query.getTimeoutMillis() / 1000);
    }
    Map extensions = query.getExtensions();
    if (extensions != null && extensions.get(DatastoreManager.DATASTORE_READ_CONSISTENCY_PROPERTY) != null) {
      config.readPolicy(new ReadPolicy(
          ReadPolicy.Consistency.valueOf((String) extensions.get(DatastoreManager.DATASTORE_READ_CONSISTENCY_PROPERTY))));
    }
    DatastoreService ds = DatastoreServiceFactoryInternal.getDatastoreService(config);
    // Txns don't get started until you allocate a connection, so allocate a
    // connection before we do anything that might require a txn.
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