Concept of Minimal and Full assembly

[skabashnyuk]

What does this PR do?

The main goal of this issue is to introduce two maven modules for ws-agent minimum set of components that need to start workspace agent. che-ide-core is core ide part, che-wsagent-core is core server side part of workspace agent.

How to use them
We will use them in two ways:

• As a fundament of our full assembly.
• As a fundament for our samples.

Full assembly of IDE
To make Full assembly of ide we need to declare in assembly/assembly-ide-war/pom.xml

1. IDE Core

        <dependency>
            <groupId>org.eclipse.che.core</groupId>
            <artifactId>che-ide-core</artifactId>
        </dependency>

2. All IDE plugins we have in Che.

     <dependency>
            <groupId>org.eclipse.che.plugin</groupId>
            <artifactId>*</artifactId>
        </dependency>

Custom assembly of IDE based on minimal Che IDE
To make Custom assembly of IDE based on minimal Che IDE* we need to declare in assembly/assembly-ide-war/pom.xml

1. IDE Core

        <dependency>
            <groupId>org.eclipse.che.core</groupId>
            <artifactId>che-ide-core</artifactId>
        </dependency>

2. IDE part of custom plugin.

        <dependency>
            <groupId>my.plugin</groupId>
            <artifactId>plugin-json-ide</artifactId>
        </dependency>

3. IDE war that will be reused to get some resources

       </dependency>
        <dependency>
            <groupId>org.eclipse.che</groupId>
            <artifactId>assembly-ide-war</artifactId>
            <type>war</type>
            <scope>runtime</scope>
        </dependency>

Full assembly of Ws-agent server war

1. Core Ws agent war

    <dependency>
            <groupId>org.eclipse.che.core</groupId>
            <artifactId>che-wsagent-core</artifactId>
            <type>war</type>
        </dependency>

2. Swagger support

        <dependency>
            <groupId>org.eclipse.che.lib</groupId>
            <artifactId>che-swagger-module</artifactId>
        </dependency>

3.All ws-agent plugins

       <dependency>
            <groupId>org.eclipse.che.plugin</groupId>
            <artifactId>che-plugin-*</artifactId>
        </dependency>

Custom assembly of ws-agent base minimal Che ws-agent

1. Core Ws agent war

    <dependency>
            <groupId>org.eclipse.che.core</groupId>
            <artifactId>che-wsagent-core</artifactId>
            <type>war</type>
        </dependency>

2. Plugin server side

        <dependency>
            <groupId>my.plugin</groupId>
            <artifactId>plugin-json-server</artifactId>
        </dependency>

** A couple of stats based on plugin-json**

Value	Basic	Full
ws-agent war size	17Mb	34 MB
GWT compilation	4min	6min
gwt scripts size	4,5 Mb	7.7 Mb
ide war size	6,3Mb	8Mb

What issues does this PR fix or reference?

#4403

Changelog

Introduced two maven modules for ws-agent minimum set of components that need to start workspace agent

Release Notes

Docs PR

eclipse-che/che-docs#202

[codenvy-ci]

Build success. https://ci.codenvycorp.com/job/che-pullrequests-build/2408/

[skabashnyuk]

@bmicklea if question to me - then I don't know. @TylerJewell @JamesDrummond has better understanding of docs structure. If it helps I can create separate page with content similar to the description of this issue. Just let me know what's needed.

[JamesDrummond]

@bmicklea This should have docs I would think. I don't have a lot of time to do it before 5.8.0 release I think. Could we merge PR and them follow up with docs later?

[bmicklea]

@skabashnyuk - please include an .md file and we will figure out where to put it.

[skabashnyuk]

@bmicklea @JamesDrummond plz take a look eclipse-che/che-docs#198

[codenvy-ci]

Build success. https://ci.codenvycorp.com/job/che-pullrequests-build/2421/

[codenvy-ci]

Build success. https://ci.codenvycorp.com/job/che-pullrequests-build/2431/

[codenvy-ci]

Build success. https://ci.codenvycorp.com/job/che-pullrequests-build/2441/

[skabashnyuk]

@bmicklea @JamesDrummond in this pr eclipse-che/che-archetypes#44 plugin-json-archetype will be based on minimal assembly.

[skabashnyuk]

More stats

ws-agent startup time

Linux I7 3.40GHz SSD
Basic ws-agent start time 10 sec, tomcat start time 5-6 sec
Full ws-agent start time 15 sec, tomcat start time 8-9 sec

OSX I5 2.7GHz SSD
Basic ws-agent start time 23 sec, tomcat start time 10-12 sec
Full ws-agent start time 34 sec, tomcat start time 24 sec

[codenvy-ci]

Build success. https://ci.codenvycorp.com/job/che-pullrequests-build/2448/

[codenvy-ci]

Build success. https://ci.codenvycorp.com/job/che-pullrequests-build/2449/