T24 Java Routine

package com.temenos.t24;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;
import com.temenos.api.TStructure;
import com.temenos.t24.api.complex.eb.servicehook.ServiceData;
import com.temenos.t24.api.complex.eb.servicehook.SynchronousTransactionData;
import com.temenos.t24.api.complex.eb.servicehook.TransactionControl;
import com.temenos.t24.api.hook.system.ServiceLifecycle;
import com.temenos.t24.api.records.customer.CustomerRecord;
import com.temenos.t24.api.system.DataAccess;
/**
 * @author Danish The Techie
 */
public class CustomerWorking extends ServiceLifecycle {
    static int processed = 0;
    
    @Override
    public List<String> getIds(ServiceData serviceData, List<String> controlList) {
        
        List<String> records = null;
        DataAccess da = new DataAccess(this);
        records = da.selectRecords("", "CUSTOMER", "", "WITH RESIDENCE EQ US ");
        return records;
        
    }
    
    @Override
    public void updateRecord(String id, ServiceData serviceData, String controlItem,
            TransactionControl transactionControl, List<SynchronousTransactionData> transactionData,
            List<TStructure> records) {
        
        //storing customer id received as input params
        String custId = id;
        String fileName = "Customer-Contacts.csv";
        
        DataAccess da = new DataAccess(this);
        CustomerRecord cusRec = new CustomerRecord(da.getRecord("CUSTOMER", custId));
        String mnemonic = cusRec.getMnemonic().getValue();
        
        for(int i = 0; i<cusRec.getPhone1().size(); i++){
            String phoneNum = cusRec.getPhone1(i).getPhone1().getValue();
            String sms = cusRec.getPhone1(i).getSms1().getValue();
            
            try {
                File file = new File("../../bnk/UD/REPORTS.BP/"+fileName);
                FileWriter fileWriter = new FileWriter(file, true);
                fileWriter.append(custId + "|" + mnemonic + "|" + phoneNum + "|" + sms );
                fileWriter.append("\n");
                fileWriter.close();
                processed++;
            } catch (IOException e) {
                e.getMessage();
            }
        }
    }
}