I have loaded a dataset to Dynamo DB successfully. I then want to read the data from the dynamo DB and load into a .csv file. Use this file by weka to develop the clusters. Unfortunately, only few data is read from the dynamo DB are loaded into the .csv file. The below is the snippet where the data is read from Dynamo DB. I have 2201 records in my Dynamo DB but it abruptly stops writing into the file at 1986 th record and in the 3 column. I have tried all possible solutions I cloud find online but was not able to solve it. Kindly someone please help me in this.
//scanning the data from dynamobb
ScanRequest scanRequest = new ScanRequest().withTableName(tablename[2]);
ScanResult result = client.scan(scanRequest);
for (Map<String, AttributeValue> item : result.getItems()){
printItem(item,writer);
}
//appending the data into an empty CSV file
private static void printItem(Map<String, AttributeValue> attributeList,FileWriter writer) {
int i=1;
System.out.println("Inside printItem");
try{
int k=1;
for (Map.Entry<String, AttributeValue> item : attributeList.entrySet()) {
AttributeValue value = item.getValue();
String valueName= value.getS();
writer.append(valueName);
if(k<=4){
writer.append(',');
}
++i;
++k;
}
writer.append('\n');
++count;
}
catch (IOException e) {
e.printStackTrace();
}
}
