Development Notes

JIRA: Select Estimate and Actually Spent (Logged) Hours

Categories: Development Notes; Tagged with: JIRA; @ May 9th, 2013 21:24

SELECT TOP 20
    CAST((ji.TIMESPENT – TIMEORIGINALESTIMATE)/3600 AS DECIMAL (6, 2)) AS [Diff(H)] ,
    CAST (ji.TIMEORIGINALESTIMATE/3600 AS DECIMAL (6,2)) AS [TIMEORIGINALESTIMATE(H)],
    CAST(ji.TIMESPENT/3600 AS DECIMAL (6, 2)) AS [TIMESPENT(H)],
    Project.pname AS [ProjectName],
    *
FROM jiraschema.jiraissue ji
    LEFT JOIN jiraschema.project Project on ji.PROJECT = PROJECT.ID
ORDER BY (ji.TIMESPENT – TIMEORIGINALESTIMATE) desc

Google I/O 2009 – The Myth of the Genius Programmer 技术大拿的传说

Fitz(Brian W. Fitzpatrick) 与 Ben(Ben Collins-Sussman) 是Google的两位技术大拿, 这是他们在09年Google IO上的演讲:https://www.youtube.com/watch?v=0SARbwvhupQ

摘录/翻译一点我觉得挺有意思的部分:

How many people in this room write code entirely by themselves only. Never with other people? or how many like writing code by yourself.
这是一个问题. 很少有人完全独立编程, 但有很多人希望能够独立编程;
How many people in this room do code reviews as part of development process?
多数人举手. 所以, 如果所在的团队没有code review, 是不是该考虑开始code review 或是离开?
Who is afraid of look stupid in front of people?
多数人都不希望在别人面前犯二.
Bus factor is the number of people on your software project that have to get hit by a bus that are gonna leave you in a world of hee.
Lose the ego 放低自己
Criticism is not Evil 批评不是恶魔
At Google, actually, we’re not allowed to submit code into our version control system until there’s code review
在Google, 在提交代码之前必须进行代码审查
When failure does happen, be ready for it, don’t freak out, document what happened, what did you learn from it? what are you going to do different next time? write it up and learn from it
Iterate Quickly: The faster you can fail and the faster you can iterate, the faster you can learn and get better.
Practice is Key
To be a small fish: If you were the senior developer on a team or in a company or something, and everyone looks to you and you’re sort of the teacher, or the king, queen whatever, if you’re only working with people junior to you, you are going to learn things from them, but it’s gonna be harder to improve your skills.
When you are a big fish in a pond, it’s very comfortable, but you’re not really learning very much. you feel safe, but you don’t get much better. and when you are a small fish in a huge pond, it’s very scary.
Be Influenced: the more that you’re open to the influence of other people, who might have a really good idea,
Be Vulnerable: If you can show yourself to be open to change and willing to admit mistake
Case Study: Subversion
It started out with three guys in an office writing a design doc together, just the three of them. Took up maybe two weeks or three weeks, to actually get it right. two or three is best. If you travel with more than six people, you can’t go anywhere…
After we got design doc, we brought it to a larger forum, invited comments, put it up on a web site, and began to get feedback. and then we just started coding, amazingly, about a month or two later, we had some working, very basic working code, and suddenly, as soon as we had working code, suddenly all these people started showing up. we didn’t even advertise, but somehow, it was like we crossed the magic threshold. ( 9 years ago, it was only CVS)
If you do all these things, people will Think You’re a Genius.

JIRA: How to get all issues related to a user 列出用户参与的所有条目

Categories: Development Notes; Tagged with: JIRA; @ May 3rd, 2013 12:02

Requirement: Get all issues that the user has been involved in

for example, A created new issue, assigned to B, B resolved the issue and assign back to A, A closed the issue.
we need get this issue using ‘B’ as the filter.

Solution: Use “Assignee was” filter

Go to “Issue Navigator”, “Switch to advanced searching”, use this query:


assignee was "userID"

Java Code Quality Control Eclipse Plugins 代码质量控制Eclipse插件

Categories: Development Notes • Java; Tagged with: Clean Code • Java • Quality Control; @ May 2nd, 2013 22:04

Several Eclipse plugins which can help to improve code quality. all plugs can find from Eclipse Market.

1. FindBugs

Find potential bugs for you. “a program which uses static analysis to look for bugs in Java code”

2. eCobertura

“eCobertura is a free Eclipse plugin for Cobertura – a Java code coverage reporting tool.”

With “eCobertura”, we can get an overview of code coverage within Eclipse.

BTW, This plugin hasn’t been updated for more than 2 years.

How to clear the code coverage highlighting?
Currently, no this feature (https://github.com/jmhofer/eCobertura/issues/8), but can reset by edit the java class.

3. CheckStyle

Help developer to check the coding style, for example, coding conversation, make sure the code is clean and neat.

Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. It automates the process of checking Java code to spare humans of this boring (but important) task. This makes it ideal for projects that want to enforce a coding standard.

[to be continued]

Maven: modify the default JDK 修改Maven默认JDK

Categories: Development Notes; Tagged with: Maven; @ May 1st, 2013 11:18

I created a maven java project, and I want to use some new feature in Java7, but every time, after update the project, the JRE will be changed to 1.5 automatically.

After googling, got the solution: configure maven-compiler-plugin:


  <build>
    <finalName>J2EE</finalName>
    <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>2.1</version>
          <configuration>
            <source>1.7</source>
            <target>1.7</target>
          </configuration>
        </plugin>
    </plugins>
  </build>

http://stackoverflow.com/questions/3539139/what-causes-a-new-maven-project-in-eclipse-to-use-java-1-5-instead-of-java-1-6-b

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