Example usage for com.amazonaws.services.dynamodbv2.document.spec GetItemSpec GetItemSpec

Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2.document.spec GetItemSpec GetItemSpec.

Prototype

public GetItemSpec() 

Source Link

Usage

From source file:com.clicktravel.infrastructure.persistence.aws.dynamodb.DynamoDocumentStoreTemplate.java

License:Apache License

@Override
public <T extends Item> T read(final ItemId itemId, final Class<T> itemClass) throws NonExistentItemException {
    final ItemConfiguration itemConfiguration = getItemConfiguration(itemClass);
    final String tableName = databaseSchemaHolder.schemaName() + "." + itemConfiguration.tableName();

    final GetItemSpec itemSpec = new GetItemSpec().withPrimaryKey(getPrimaryKey(itemId, itemConfiguration));

    T item = null;/*ww w. j  ava  2 s  . co m*/

    final Table table = dynamoDBClient.getTable(tableName);

    final com.amazonaws.services.dynamodbv2.document.Item tableItem = table.getItem(itemSpec);
    if (tableItem != null) {
        final String tableText = tableItem.toJSON();
        if (tableText.isEmpty()) {
            throw new NonExistentItemException(String.format(
                    "The document of type [%s] with id [%s] does not exist", itemClass.getName(), itemId));
        }
        item = stringToItem(tableText, itemClass);
    } else {
        throw new NonExistentItemException(String
                .format("The document of type [%s] with id [%s] does not exist", itemClass.getName(), itemId));
    }
    return item;
}

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From source file:com.exorath.service.lastserver.dynamodb.DynamoDBService.java

License:Apache License

@Override
public GetResult getLastServer(UUID playerId) {
    GetItemSpec spec = new GetItemSpec().withPrimaryKey(PRIM_KEY, playerId.toString());
    Item item = table.getItem(spec);//  w  w  w.ja v  a 2s .  c  o  m
    logger.info("Retrieved the following last server data for player " + playerId + ": " + item);
    if (item == null || !item.hasAttribute(GAMEID_ATTR)) {
        return new GetResult(null, null, null);
    } else {
        String gameId = null;
        String mapId = null;
        String flavorId = null;
        if (item.hasAttribute(GAMEID_ATTR)) {
            gameId = item.getString(GAMEID_ATTR);
        }
        if (item.hasAttribute(MAPID_ATTR)) {
            mapId = item.getString(MAPID_ATTR);
        }
        if (item.hasAttribute(FLAVORID_ATTR)) {
            flavorId = item.getString(FLAVORID_ATTR);
        }
        return new GetResult(gameId, mapId, flavorId);
    }
}

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From source file:com.exorath.service.lobbymsg.impl.DynamoDBService.java

License:Apache License

public static GetItemSpec getMapMessagesSpec() {
    return new GetItemSpec().withPrimaryKey(getPrimaryKey());
}

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From source file:com.exorath.service.treasurehunt.dynamodb.DynamoDBService.java

License:Apache License

@Override
public GetResult getTreasures(UUID playerId) {
    GetItemSpec spec = new GetItemSpec().withPrimaryKey(PRIM_KEY, playerId.toString());
    Item item = table.getItem(spec);/*from  ww  w . j  ava 2s.  co m*/
    logger.info("Retrieved the following treasures for player " + playerId + ": " + item);
    if (item == null || !item.hasAttribute(TREASURES_FIELD)) {
        return new GetResult(new Treasure[0]);
    } else {
        List list = item.getList(TREASURES_FIELD);
        Treasure[] treasures = new Treasure[list.size()];
        int i = 0;
        for (Object treasure : list) {
            treasures[i++] = new Treasure(treasure.toString());
        }
        return new GetResult(treasures);
    }
}

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From source file:jp.classmethod.aws.dynamodb.DynamoDbRepository.java

License:Open Source License

@Override
public E findOne(K keys) {
    //interface specifies throw IllegalArgumentException so use checkArgument instead
    Preconditions.checkArgument(keys != null, "keys must not be null");
    //just read the item and return it
    final Item item;
    final PrimaryKey pk = createKeys(keys);
    GetItemSpec spec = new GetItemSpec().withPrimaryKey(pk);
    try {//ww  w. j  a  va2s .c o  m
        //TODO add projection expression for keys
        item = table.getItem(spec);
        return item == null ? null : convertItemToDomain(item);
    } catch (AmazonClientException e) {
        throw convertDynamoDBException(e, "read",
                null /* conditionMessage is null because GetItem doesnt take a condition */);
    }
}

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From source file:org.xmlsh.aws.util.AWSDDBCommand.java

License:BSD License

protected GetItemSpec parseGetItemSpec(Options opts) throws InvalidArgumentException, XPathException,
        UnexpectedException, UnimplementedException, IOException {
    GetItemSpec spec = new GetItemSpec().withPrimaryKey(getPrimaryKey(opts))
            .withConsistentRead(opts.hasOpt("consistant")).withNameMap(parseAttrNameExprs(opts));
    if (opts.hasRemainingArgs())
        spec.withProjectionExpression(Util.stringJoin(Util.toStringList(opts.getRemainingArgs()), ","));
    return spec;/*from ww w  .java  2 s  .c  o m*/

}

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From source file:tr.com.serkanozal.samba.cache.impl.SambaGlobalCache.java

License:Open Source License

@Override
public <V> V get(String key) {
    V value;/*from  w ww.j  a  v a  2 s  .  co m*/
    Item item = DYNAMO_DB_TABLE.getItem(new GetItemSpec().withPrimaryKey("id", key).withConsistentRead(true));
    if (item == null) {
        value = null;
    } else {
        byte[] data = item.getBinary("data");
        if (data == null) {
            value = null;
        } else {
            value = deserialize(data);
        }
    }
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug(String.format("Value %s has been retrieved from global cache with key %s", key, value));
    }
    return value;
}

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