Add batch functionality to Java Project




I currently have a Java project that creates hash functions and inserts the hash values into a database.

What I require is to batch process this, so for all the files it will run the first hashing algorithm (MD5) then record the time taken, then run the second hashing algorithm (SHA-1) store the time taken, etc. The time needs to be outputted into a table or CSV

Each new hashing algorithm needs a new process ID and/or the RAM needs to be flushed after each algorithm is run. This is because I am having problems with files being stored in RAM which is affecting the time taken for the next test.

All the hashing functionality works fine.

Currently its connected to a mySQL database, I also require it to work with Postgres SQL and MS SQL.

*High level of communication required

*Required ASAP

*Only bid with the price you are willing to do it for. for example do not bid $2 so you can talk to me.

*Freelancer will be chosen on experience and reviews in Java.

*Payment made on satisfactory completion.

Skills: Java, Software Architecture, Software Development

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Project ID: #5090600

Awarded to:


Dear employer, I've extensive experience in java and I can proceed with this project. Please send in more details to proceed with. I am ready to start working on your project. Looking forward to working with you. More

$9 USD / hour
(10 Reviews)

23 freelancers are bidding on average $24216/hour for this job


Hello Sir, I am Bing from China,How are you! I am a senior Java developer with 11 years experience, This is my real bid,Please let me help you. BTW,do you have source code of ISOHasher? Thanks Bing

$40 USD / hour
(102 Reviews)

Hi, We have read your requirements and would like to discuss more as we have 5 Java, Spring experts in our company & developed over 80+ big size applications in the last 5 years. Please check below some of our p More

$25 USD / hour
(6 Reviews)

Hello, I have read the project specifications and I'm willing to participate on it. From the standpoint of technical expertise, there are no issues from my side, being capable and with hands-on experience in deliver More

$29 USD / hour
(6 Reviews)

I have +10 years of experience in programming. I am new to freelancer but you can see how many projects are finished here in 3 months with 100% completion rate and 100% positive reviews. I have an interesting suggest More

$20 USD / hour
(26 Reviews)

Hello Sir, I have experience on java, and batch processing, i can help you do it pl ping me and give me details thanks!

$33 USD / hour
(49 Reviews)

Hello sir, I'm an experienced Java, J2EE application developer, I'm very happy to get this project done for you. PM me, Thanks.

$20 USD / hour
(10 Reviews)

Hi, We should discuss some topics before I start. Why do you wish to avoid execution time being affected by RAM usage? Are you aware that caching of the file system can be done from operating system side and y More

$11 USD / hour
(3 Reviews)

Hi, this message is about your batch hashing project that I just bid on. Support for Postgres/MSSQL should be straightforward, adding appropriate JDBC drivers and making (hopefully minor) code changes/additions. More

$30 USD / hour
(2 Reviews)

Hi, this is what i would like to propose my solution: - I will scan the files to check memory required to proceed (so the RAM will not affect on next round of testing). - Then do batch process on these files - Flush More

$10 USD / hour
(2 Reviews)

Hi, Are you running all the hashing algorithms on all the files at a go, part of same Java process? One suggestion is to split the hashing per algorithm and run separate java process for each algorithm sequentiall More

$44 USD / hour
(1 Review)

Hello Sir, We are team of 5 members and 3 of us having 8+ years of experience in Java/J2EE and 2 of us are having 5 years of experience in Java/J2EE. And also, we have delivered many projects successfully to Pr More

$55 USD / hour
(0 Reviews)

A proposal has not yet been provided

$30 USD / hour
(0 Reviews)

I have got 7+ expereince in java technologies. I have worked with batch processing of the data, transformation of data and storing it into DB/Excel/CSV. Feel free to contact +91-9848284500

$444 USD / hour
(0 Reviews)

Hi! I'm an Oracle Java Certified with more than 8 years of experience, also I have more than 4 years as a Technical Leader and Architect responsibilities. Although I'm new at Freelancer, I 've great experience. Yo More

$33 USD / hour
(0 Reviews)

I am a professional software engineer with 9+ years of experience. I am very talented programmer with the following skills c, c++ , java , UNIX, Linux,SSH, PHP, Jsp , Js , advanced js like jquery, extjs etc. My skill More

$16 USD / hour
(0 Reviews)

I've been working on java for a long time. I will be able to do this effectively and efficiently. Please let me know if you want me to take it up.

$100 USD / hour
(0 Reviews)

Hi I am probably a lot less experienced then your other bidders as I am just starting out on Freelancer. From the description of your project it sounds pretty simple, with the main aspect being testing the databas More

$16 USD / hour
(0 Reviews)

A proposal has not yet been provided

$526316 USD / hour
(0 Reviews)

My Experience Summary: More than 12 years of software development experience on Java/J2ee projects. Expert in programming. Looking for a long term relationship.

$56 USD / hour
(0 Reviews)

I'm Udesh Liyanaarachchi and I have engaged in similar kind of batch data processing projects using Java and related frameworks and APIs. I'm really interested in the requirements. Please search google with my na More

$20 USD / hour
(0 Reviews)