Package com.amazonaws.services.dynamodb.model

Examples of com.amazonaws.services.dynamodb.model.QueryResult

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        QueryRequest query = new QueryRequest();
        query.setTableName(MetastoreJanitor.tableName);
        query.setHashKeyValue(new AttributeValue().withS(DynamoDBMetastore.TIMESERIES_KEY));
        query.setLimit(queueSize/2);
       
        QueryResult result;
       
        int scanCount = 0;
        int deleteCount = 0;
       
        do {
            //Can't set a hard limit on the queue since paths can be resubmitted by delete task
            //which can cause a deadlock.
            synchronized (deleteQueue) {
                while (deleteQueue.size() >= queueSize) {
                    deleteQueue.wait();
                }
            }
           
            if(!running) {
                break;
            }
               
            result = db.query(query);
           
            scanCount += result.getCount();
           
            long epoch = deleteEpoch;
           
            for (Map<String, AttributeValue> i : result.getItems()) {
                epoch = Long.parseLong(i.get(DynamoDBMetastore.RANGE_KEY).getS().split("-")[0]);
               
                if (epoch >= deleteEpoch) {
                    log.info("Timeseries scan complete.  Exiting.");
                    running = false;
                    break;
                }
               
                deleteCount += 2;
               
                deleteQueue.put(new Key(i.get(DynamoDBMetastore.HASH_KEY), i.get(DynamoDBMetastore.RANGE_KEY)));
                deleteQueue.put(new Key(i.get(DynamoDBMetastore.LINK_HASH_KEY), i.get(DynamoDBMetastore.LINK_RANGE_KEY)));
            }
           
            if(scanCount % reportInterval == 0) {
                log.info(format("scanned: %d, added: %d, queue_size: %d, current_date: %s", scanCount, deleteCount, deleteQueue.size(), new Date(epoch)));
            }
           
            limiter.acquire(result.getConsumedCapacityUnits().intValue());
           
            query.setExclusiveStartKey(result.getLastEvaluatedKey());
        } while (running && result.getLastEvaluatedKey() != null);
       
        log.info(format("Scan Complete.%nEntries Scanned: %d%nEntries Deleted: %d", scanCount, deleteCount));
       
        return Boolean.TRUE;
    }
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                .withTableName(tableName.get())
                .withHashKeyValue(new AttributeValue(key));
       
        Stopwatch stopwatch = getLogsTimer.start();
       
        QueryResult result;
        try {
            // perform query
          result = dbClient.query(queryRequest);
        } finally {
            getLogsTimer.record(stopwatch.getDuration(TimeUnit.MILLISECONDS), TimeUnit.MILLISECONDS);
        }
       
        List<String> logs = new ArrayList<String>(result.getCount());

        // prepend the total row count to the list
        logs.add(String.valueOf(result.getCount()));
       
        for (Map<String, AttributeValue> item : result.getItems()) {
          logs.add(item.get(hashKeyName.get()).getS());
          logs.add(item.get(rangeKeyName.get()).getS());
          logs.add(item.get(valueName.get()).getS());
        }
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    public <T> PaginatedQueryList<T> query(Class<T> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);
       
        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression, config);

        QueryResult queryResult = db.query(applyUserAgent(queryRequest));
        return new PaginatedQueryList<T>(this, clazz, db, queryRequest, queryResult);
    }
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        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression, config);
        queryRequest.setCount(true);

        // Count queries can also be truncated for large datasets
        int count = 0;
        QueryResult queryResult = null;
        do {
            queryResult = db.query(applyUserAgent(queryRequest));
            count += queryResult.getCount();
            queryRequest.setExclusiveStartKey(queryResult.getLastEvaluatedKey());
        } while (queryResult.getLastEvaluatedKey() != null);

        return count;
    }
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     *             DynamoDB.
     */
    public <T> List<T> query(Class<T> clazz, DynamoDBQueryExpression queryExpression) throws Exception {
        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression);

        QueryResult queryResult = db.query(applyUserAgent(queryRequest));
        int count = queryResult.getCount();

        // If the results are truncated, figure out the count
        if (queryResult.getLastEvaluatedKey() != null) {
            count = count(clazz, queryExpression);
        }

        return new PaginatedQueryList<T>(this, clazz, db, count, queryRequest, queryResult);
    }
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        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression);
        queryRequest.setCount(true);

        // Count queries can also be truncated for large datasets
        int count = 0;
        QueryResult queryResult = null;
        do {
            queryResult = db.query(applyUserAgent(queryRequest));
            count += queryResult.getCount();
            queryRequest.setExclusiveStartKey(queryResult.getLastEvaluatedKey());
        } while (queryResult.getLastEvaluatedKey() != null);

        return count;
    }
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    public <T> PaginatedQueryList<T> query(Class<T> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression, config);

        QueryResult queryResult = db.query(applyUserAgent(queryRequest));
        return new PaginatedQueryList<T>(this, clazz, db, queryRequest, queryResult);
    }
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    public <T> QueryResultPage<T> queryPage(Class<T> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression, config);

        QueryResult scanResult = db.query(applyUserAgent(queryRequest));
        QueryResultPage<T> result = new QueryResultPage<T>();
        result.setResults(marshallIntoObjects(clazz, scanResult.getItems()));
        result.setLastEvaluatedKey(scanResult.getLastEvaluatedKey());
       
        return result;
    }
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        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression, config);
        queryRequest.setCount(true);

        // Count queries can also be truncated for large datasets
        int count = 0;
        QueryResult queryResult = null;
        do {
            queryResult = db.query(applyUserAgent(queryRequest));
            count += queryResult.getCount();
            queryRequest.setExclusiveStartKey(queryResult.getLastEvaluatedKey());
        } while (queryResult.getLastEvaluatedKey() != null);

        return count;
    }
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    public <T> PaginatedQueryList<T> query(Class<T> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        QueryRequest queryRequest = createQueryRequestFromExpression(clazz, queryExpression, config);

        QueryResult queryResult = db.query(applyUserAgent(queryRequest));
        return new PaginatedQueryList<T>(this, clazz, db, queryRequest, queryResult);
    }
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  • com.michelboudreau.alternator.AlternatorDBHandler
  • com.michelboudreau.test.AlternatorQueryTest
  • com.michelboudreau.test.AlternatorSaveRestoreTest
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  • org.apache.camel.component.aws.ddb.AmazonDDBClientMock
  • org.apache.camel.component.aws.ddb.QueryCommand
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