CSV Reader/Writer

Create a Spring command line application to process an input file with the goal of generating a summary output file based on the input data. The input file contains elementary trades. The profit of each trade should be calculated based on differing formulae. A summary output file should be generated. 1 Read a CSV file of arbitrary size with the following format: instrument_type,name,quantity,buy_price,sell_price,coupon Equity,AAA,123,1.01,1.10 Equity,BBBB,3,1.05,1.01 Bond,CCC,3,,,0.13 Equity,AAA,12,1.11,1.13 Bond,DD,3,,,1.24 2 Design simple equity and bond services which can calculate profit. These services although simple should be designed with the future in mind where they can easily be replaced by more complex versions in future. The services should use the following formulae. Equity profit = (sell_price - buy_price) * quantity Bond profit = quantity * coupon 3 Output a file containing a summary of profit by instrument type such as: instrument_type,name,quantity,profit Equity,AAA,135,11.31 Equity,BBBB,3,-0.12 Bond,CCC,11,0.39 Bond,DD,3,3.72 3/ The third field of the output file is the total number of securities (stocks) of a given type. So, if you have 10 AAA and another 5 AAA you have a total of 15 AAA.