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Follow the steps below to set up the development environment on your client machine, and to establish credentials with which you may access the repositories.

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yum install java-1.8.0-openjdk-devel

yum install git

yum groupinstall 'Development Tools'

tar -xvf apache-maven-3.6.3-bin.tar.gz

sudo curl https://releases.rancher.com/install-docker/17.03.sh | sh

sudo wget https://github.com/stedolan/jq/releases/download/jq-1.5/jq-linux64 -O jq
sudo chmod 777 jq
# not +x or jq will not be runnable from your non-root user
sudo mv jq /usr/local/bin
jq --version

sudo usermod -aG docker ubuntu

...

in ~/.ssh/config

Host *
   StrictHostKeyChecking no
   UserKnownHostsFile=/dev/null

sudo passwd root

vi /etc/ssh/sshd_config

FROM:
PermitRootLogin prohibit-password
TO:
PermitRootLogin yes

if not

sudo apt-get install git

tar -xvf apache-maven-3.5.0-bin.tar.gz

curl https://releases.rancher.com/install-docker/17.03.sh | sh

...

To do this, right-click on C:\Program Files (x86)\PuTTY\puttygen.exe and select Run as Administrator:

...

sudo curl https://releases.rancher.com/install-docker/17.03.sh | sh

sudo wget https://github.com/stedolan/jq/releases/download/jq-1.5/jq-linux64 -O jq
sudo chmod 777 jq
# not +x or jq will not be runnable from your non-root user
sudo mv jq /usr/local/bin
jq --version

sudo usermod -aG docker ubuntu

...

in ~/.ssh/config

Host *
   StrictHostKeyChecking no
   UserKnownHostsFile=/dev/null

sudo passwd root

vi /etc/ssh/sshd_config

FROM:
PermitRootLogin prohibit-password
TO:
PermitRootLogin yes

curl https://releases.rancher.com/install-docker/17.03.sh | sh

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Download and run the installer from: Install Eclipse. Select "Eclipse IDE for Java Developers" to install.

Import Google style preferences

Follow instructions on: Installing the coding style settings in eclipse.

See also Java code style

Install useful plugins

Install EclEmma for code coverage, and SonarLint for static code analysis.

Set up Sonar towards ONAP

To bind your projects to the ONAP Sonar server, follow the instructions below. Your projects should be imported in to Eclipse before this.

1. Right click on the project and select "SonarLint -> Bind to SonarQube or SonarCloud...".
2. Select "sonarcloud" and press "Next".
3. Click "Generate Token"
4. A browser opens and you are taken to a Sonarcloud login page
5. Login with an appropriate account from the list presented, most likely your GitHub account
6. You are now directed to a sonarcloud token generation page
7. Enter a name for your token and click "Generate"
8. Copy the token hex string that is generated from the browser and paste it into the "Token" field in Eclipse and click "Next"
9. In the "Organization" field, enter the string "onap" and press "Next"
10. The Connection name "SonarCloud/onap" should be found by the system, click "Next"
11. The connection should be successfully created, click "Finish"
12. Press "Add...".
13. Select the projects you want to add and press "OK".
14. Press "Next".
15. Start typing the name of your project, and it should appear in a list box where it should be selected.
16. Press "Finish".

To see messages from Sonar introduced by edits made in the projects, select "Window -> Show Wiew -> Other...". Expand "SonarLint" and select "SonarLint -> On-The-Fly".

Setting up the ONAP Checkstyle in Eclipse

Set "ONAP" configuration in Eclipse

To set the newly built checkstyle files in Eclipse:

1. Preferences->Checkstyle
2. Click "New"
3. Select "External Configuration File"
4. Give it a name eg ONAP
5. Point at the file <your_git_folder>/oparent/checkstyle/src/main/resources/onap-checkstyle/onap-java-style.xml  
   (assuming you have downloaded the oparent repo)
6. Click OK
7. Select "ONAP" configuration and click "Set as Default"
8. Select "Apply and Close"

Apply "ONAP" configuration to a project in Eclipse

Now we need to activate the checkstyle on one project and set it as the blueprint for all of them:
Select a project in eclipse and right click->Properties->Checkstyle
check "Checkstyle active for this project"
Select the "ONAP" checkstyle profile
Click "Apply and Close"

Spread blueprint to other projects in Eclipse

Now spread the profile to all other projects:

1. Select all the projects you want to apply the profile to in the Eclipse project explorer (not the one that you set up above)
2. Right click->Checkstyle->Configure projects from blueprint
3. Select the project you set up above
4. Now all the projects have the correct checkstyle setup.

Hack oparent to fix "curly bracket" issue

ONAP Eclipse Java Formatter (Optional)

...

As per onap-java-formatter.xml, an ONAP Eclipse Java Formatter XML file can be imported into Eclipse. Updates to the settings should be committed and merged back into the repository.

Maven Plugins to Reformat Java code

Using the Eclipse Formatter file above and maven plugin configuration in pom.xml as per pom.xml (https://code.revelc.net/formatter-maven-plugin/ for Eclipse formatter and https://github.com/diffplug/spotless/tree/master/plugin-maven for import order)

            <plugins>
                <!--
                Using https://code.revelc.net/formatter-maven-plugin/ for Eclipse formatter
                Using https://github.com/diffplug/spotless/tree/master/plugin-maven for import order
                Use in combination to rewrite code and imports, then checkstyle
                
                mvn formatter:format spotless:apply process-sources
                -->
                <plugin>
                     <groupId>net.revelc.code.formatter</groupId>
                     <artifactId>formatter-maven-plugin</artifactId>
                     <version>2.8.1</version>
                     <configuration>
                        <configFile>${project.parent.basedir}/onap-java-formatter.xml</configFile>
                     </configuration>
                     <!-- https://code.revelc.net/formatter-maven-plugin/
                          use mvn formatter:format to rewrite source files
                          use mvn formatter:validate to validate source files -->
                 </plugin>
                <plugin>
                  <groupId>com.diffplug.spotless</groupId>
                  <artifactId>spotless-maven-plugin</artifactId>
                  <version>1.18.0</version>
                  <configuration>
                    <java>
                     <importOrder>
                       <order>com,java,javax,org</order>
                     </importOrder>
                    </java>
                  </configuration>
                <!-- https://github.com/diffplug/spotless/tree/master/plugin-maven
                     use mvn spotless:apply to rewrite source files
                     use mvn spotless:check to validate source files -->
                </plugin>
            </plugins>

the combination can be used in a maven command to rewrite code and imports, then checkstyle audit like so

mvn formatter:format spotless:apply process-sources

Install useful plugins

IntelliJ

...

ONAP Eclipse Java Formatter 

Download onap-java-formatter.xml and import into Eclipse. 

( Updates to the settings should be committed and merged back into the repository. )

ONAP uses Google Java Style with some modifications. ( See Java code style )

            <plugins>
                <!--
                Using https://code.revelc.net/formatter-maven-plugin/ for Eclipse formatter
                Using https://github.com/diffplug/spotless/tree/master/plugin-maven for import order
                Use in combination to rewrite code and imports, then checkstyle
                
                mvn formatter:format spotless:apply process-sources
                -->
                <plugin>
                     <groupId>net.revelc.code.formatter</groupId>
                     <artifactId>formatter-maven-plugin</artifactId>
                     <version>2.8.1</version>
                     <configuration>
                        <configFile>${project.parent.basedir}/onap-java-formatter.xml</configFile>
                     </configuration>
                     <!-- https://code.revelc.net/formatter-maven-plugin/
                          use mvn formatter:format to rewrite source files
                          use mvn formatter:validate to validate source files -->
                 </plugin>
                <plugin>
                  <groupId>com.diffplug.spotless</groupId>
                  <artifactId>spotless-maven-plugin</artifactId>
                  <version>1.18.0</version>
                  <configuration>
                    <java>
                     <importOrder>
                       <order>com,java,javax,org</order>
                     </importOrder>
                    </java>
                  </configuration>
                <!-- https://github.com/diffplug/spotless/tree/master/plugin-maven
                     use mvn spotless:apply to rewrite source files
                     use mvn spotless:check to validate source files -->
                </plugin>
            </plugins>

mvn formatter:format spotless:apply process-sources

Install useful plugins

Install EclEmma for code coverage and SonarLint for static code analysis.

Set up Sonar towards ONAP

To bind your projects to the ONAP Sonar server, follow the instructions below.

Your projects should be imported in to Eclipse before this.

To see messages from Sonar introduced by edits made in the projects, select "Window -> Show View -> Other...". Expand "SonarLint" and select "SonarLint -> On-The-Fly".

Setting up the ONAP Checkstyle in Eclipse

Set "ONAP" configuration in Eclipse

To set the newly built checkstyle files in Eclipse:

1. Preferences->Checkstyle
2. Click "New"
3. Select "External Configuration File"
4. Give it a name eg ONAP
5. Point at the file <your_git_folder>/oparent/checkstyle/src/main/resources/onap-checkstyle/onap-java-style.xml  
   (assuming you have downloaded the oparent repo)
6. Click OK
7. Select "ONAP" configuration and click "Set as Default"
8. Select "Apply and Close"

Apply "ONAP" configuration to a project in Eclipse

Now we need to activate the checkstyle on one project and set it as the blueprint for all of them:
Select a project in eclipse and right click->Properties->Checkstyle
check "Checkstyle active for this project"
Select the "ONAP" checkstyle profile
Click "Apply and Close"

Spread blueprint to other projects in Eclipse

Now spread the profile to all other projects:

1. Select all the projects you want to apply the profile to in the Eclipse project explorer (not the one that you set up above)
2. Right click->Checkstyle->Configure projects from blueprint
3. Select the project you set up above
4. Now all the projects have the correct checkstyle setup.

Hack oparent to fix "curly bracket" issue

IntelliJ

Optional 

Python

Download Python :from https://www.python.org/downloads/

Add python binary to Path. Also, be sure to install

Install "pip3", if you plan to use git-review.

git-review

Within Git BashIn a shell, type the following command : (assumes you already installed python above) :  

...

pip3 install git-review

To use git review, you have to be in a Git clone directory that already contains a (possibly hidden) .gitreview configuration file (see Gerrit/Advanced usage#Setting up a repository for git-remote)

...

Configure Git to remember your Linux Foundation user name and email address (the user name and email address associated with your Linux Foundation login):

git config --global user.email <your_LF_account_email>

...

git config --global --add gitreview.username <your_LF_user_name>

Configure git review

git config --global gitreview.remote origin

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If you are using VPN, you might encounter a proxy problem while connecting to the Linux Foundation website. To avoid the problem, you should add the proxy setting in git config, using the following command:

git config --global https.proxy https://<proxy username>:<proxy

...

 password>@<proxy url> 

git config --global http.proxy http://<proxy username>:<proxy

...

 password>@<proxy url>

NOTE: When entering the proxy username, you might be required to add the domain name in front of the username.

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