IES_102491

Notes

When trying to run the MyWeatherRadar program I received a warning about threads. In order to resolve it I used the command

mvn exec:java -Dexec.mainClass="main.java.com.raquelparadinha.WeatherStarter" -Dexec.cleanupDaemonThreads=false

With the parameter cleanupDaemonThreads set to false, maven does nothing about the daemon threads. When maven has no more work to do, the VM will normally terminate any remaining daemon threads.

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Review questions

A) Maven has three lifecycles: clean, site and default. Explain the main phases in the default lifecycle.

• validate - validate the project is correct and all necessary information is available
• compile - compile the source code of the project
• test - test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or deployed
• package - take the compiled code and package it in its distributable format, such as a JAR.
• verify - run any checks on results of integration tests to ensure quality criteria are met
• install - install the package into the local repository, for use as a dependency in other projects locally
• deploy - done in the build environment, copies the final package to the remote repository for sharing with other developers and projects.

B) Maven is a build tool; is it appropriate to run your project to?

Yes, we even used Maven for that purpose in exercise 1_2.

C) What would be a likely sequence of Git commands required to contribute with a new feature to a given project? (i.e., get a fresh copy, develop some increment, post back the added functionality)

git pull
git add *
git commit -m "commit message"
git push

D) There are strong opinions on how to write Git commit messages… Find some best practices online and give your own informed recommendations on how to write good commit messages (in a team project).

• Specify the type of commit
• Separate the subject from the body with a blank line
• Your commit message should not contain any whitespace errors
• Remove unnecessary punctuation marks
• Do not end the subject line with a period
• Capitalize the subject line and each paragraph
• Use the imperative mood in the subject line
• Use the body to explain what changes you have made and why you made them
• Do not assume the reviewer understands what the original problem was, ensure you add it
• Do not think your code is self-explanatory
• Follow the commit convention defined by your team

Guidelines according to the website https://www.freecodecamp.org/news/writing-good-commit-messages-a-practical-guide/.

E) Docker automatically prepares the required volume space as you start a container. Why is it important that you take an extra step configuring the volumes for a (production) database?

When configuring volumes we're going to make the data persist in the database. This way if the container is deleted ou a system reboot the data will remain there.