protected TransactionItem()

in src/main/java/com/amazonaws/services/dynamodbv2/transactions/TransactionItem.java [87:134]
40 lines of code
10 McCabe index (conditional complexity)

    protected TransactionItem(String txId, TransactionManager txManager, boolean insert, Map<String, AttributeValue> txItem) throws TransactionNotFoundException {
        this.txManager = txManager;
   
        // Initialize txId, txKey, and txItem
        if(txId != null) {
            // Validate mutual exclusivity of inputs
            if(txItem != null) {
                throw new TransactionException(txId, "When providing txId, txItem must be null");
            }
            this.txId = txId;
            Map<String, AttributeValue> txKeyMap = new HashMap<String, AttributeValue>(1);
            txKeyMap.put(AttributeName.TXID.toString(), new AttributeValue(txId));
            this.txKey = Collections.unmodifiableMap(txKeyMap);
            if(insert) {
                this.txItem = insert();
            } else {
                this.txItem = get();
                if(this.txItem == null) {
                    throw new TransactionNotFoundException(this.txId);
                }
            }
        } else if(txItem != null) {
            // Validate mutual exclusivity of inputs
            if(insert) {
                throw new TransactionException(txId, "When providing a txItem, insert must be false");
            }
            this.txItem = txItem;
            if(! isTransactionItem(txItem)) {
                throw new TransactionException(txId, "txItem is not a transaction item");
            }
            this.txId = txItem.get(AttributeName.TXID.toString()).getS();
            Map<String, AttributeValue> txKeyMap = new HashMap<String, AttributeValue>(1);
            txKeyMap.put(AttributeName.TXID.toString(), new AttributeValue(this.txId));
            this.txKey = Collections.unmodifiableMap(txKeyMap);
        } else {
            throw new TransactionException(null, "Either txId or txItem must be specified");
        }

        // Initialize the version
        AttributeValue txVersionVal = this.txItem.get(AttributeName.VERSION.toString());
        if(txVersionVal == null || txVersionVal.getN() == null) {
            throw new TransactionException(this.txId, "Version number is not present in TX record");    
        }
        version = Integer.parseInt(txVersionVal.getN());
        
        // Build the requests structure
        loadRequests();
    }