Package com.amazonaws.services.dynamodb.model

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

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        ScanRequest scan = new ScanRequest(MetastoreJanitor.tableName);
        scan.setScanFilter(filter);
        scan.setLimit( (int) limiter.getRate());
       
        ScanResult result;
       
        int scanTotal = 0;
        int matched = 0;
       
        do {
            //Can't set a hard limit on the queue since paths can be resubmitted by delete task
            synchronized (deleteQueue) {
                while (deleteQueue.size() >= queueSize) {
                    deleteQueue.wait();
                }
            }
           
            if(!running) {
                break;
            }
           
            result = db.scan(scan);
            scanTotal += result.getScannedCount();
            matched += result.getCount();
           
            log.info(String.format("Total scanned: %d, matched: %d, added: %d, queue size: %d, consumed capacity: %f, max rate: %f", scanTotal, matched, result.getCount(), deleteQueue.size(), result.getConsumedCapacityUnits(), limiter.getRate()));
           
            for (Map<String, AttributeValue> i : result.getItems()) {
                if (!i.containsKey("epoch")) {
                    continue;
                }
                deleteQueue.put(new Key(i.get(DynamoDBMetastore.HASH_KEY), i.get(DynamoDBMetastore.RANGE_KEY)));
            }
           
            limiter.acquire(result.getConsumedCapacityUnits().intValue());
           
            scan.setExclusiveStartKey(result.getLastEvaluatedKey());
        } while (running && result.getLastEvaluatedKey() != null);
       
        return Boolean.TRUE;
    }
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    public <T> PaginatedScanList<T> scan(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);
       
        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        return new PaginatedScanList<T>(this, clazz, db, scanRequest, scanResult);
    }
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        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);
        scanRequest.setCount(true);

        // Count scans can also be truncated for large datasets
        int count = 0;
        ScanResult scanResult = null;
        do {
            scanResult = db.scan(applyUserAgent(scanRequest));
            count += scanResult.getCount();
            scanRequest.setExclusiveStartKey(scanResult.getLastEvaluatedKey());
        } while (scanResult.getLastEvaluatedKey() != null);

        return count;
    }
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     *             DynamoDB.
     */
    public <T> List<T> scan(Class<T> clazz, DynamoDBScanExpression scanExpression) throws Exception {
        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        int count = scanResult.getCount();

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

        return new PaginatedScanList<T>(this, clazz, db, count, scanRequest, scanResult);
    }
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        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression);
        scanRequest.setCount(true);

        // Count scans can also be truncated for large datasets
        int count = 0;
        ScanResult scanResult = null;
        do {
            scanResult = db.scan(applyUserAgent(scanRequest));
            count += scanResult.getCount();
            scanRequest.setExclusiveStartKey(scanResult.getLastEvaluatedKey());
        } while (scanResult.getLastEvaluatedKey() != null);

        return count;
    }
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    public <T> PaginatedScanList<T> scan(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        return new PaginatedScanList<T>(this, clazz, db, scanRequest, scanResult);
    }
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    public <T> ScanResultPage<T> scanPage(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        ScanResultPage<T> result = new ScanResultPage<T>();
        result.setResults(marshallIntoObjects(clazz, scanResult.getItems()));
        result.setLastEvaluatedKey(scanResult.getLastEvaluatedKey());
       
        return result;
    }
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        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);
        scanRequest.setCount(true);

        // Count scans can also be truncated for large datasets
        int count = 0;
        ScanResult scanResult = null;
        do {
            scanResult = db.scan(applyUserAgent(scanRequest));
            count += scanResult.getCount();
            scanRequest.setExclusiveStartKey(scanResult.getLastEvaluatedKey());
        } while (scanResult.getLastEvaluatedKey() != null);

        return count;
    }
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    public <T> PaginatedScanList<T> scan(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        return new PaginatedScanList<T>(this, clazz, db, scanRequest, scanResult);
    }
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    public <T> ScanResultPage<T> scanPage(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        ScanResultPage<T> result = new ScanResultPage<T>();
        result.setResults(marshallIntoObjects(clazz, scanResult.getItems()));
        result.setLastEvaluatedKey(scanResult.getLastEvaluatedKey());

        return result;
    }
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