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124 lines
5.5 KiB
Markdown
124 lines
5.5 KiB
Markdown
# Introduction
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This source repository contains explorations of various design concepts the R3 DLG is exploring.
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Things you need to know:
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* The main code documentation is in the form of a website in the git repository. There is a copy of the site online, so
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[access the website](http://docs.corda.r3cev.com) using the username 'corda' and password 'delegato' to start reading
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about what's included, how to get set up, and to read a tutorial on writing smart contracts in this framework.
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* The architecture documentation is on the [Architecture Working Group Wiki](https://r3-cev.atlassian.net/wiki/display/AWG/Architecture+Working+Group) site - please
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refer to that for an explanation of some of the background concepts that the prototype is exploring.
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* The code is a JVM project written mostly in [Kotlin](https://kotlinlang.org/), which you can think of as a simpler
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version of Scala (or alternatively, a much better syntax for Java). Kotlin can be learned quickly and is designed
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to be readable, so you won't need to know it very well to understand what the code is doing. If you'd like to
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add new features, please read its documentation on the website.
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There is also Java code included, to demonstrate how to use the framework from a more familiar language.
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* For bug tracking we use [JIRA](https://r3-cev.atlassian.net/secure/RapidBoard.jspa?rapidView=9&projectKey=PD). For source control we use this BitBucket
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repository. You should have received credentials for these
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services as part of getting set up. If you don't have access, please contact Richard Brown or James Carlyle.
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* There will be a mailing list for discussion, brainstorming etc called [r3dlg-awg](https://groups.google.com/forum/#!forum/r3dlg-awg).
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# License
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This code is not yet released under a traditional open source license. Until it is, the following license applies:
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_Copyright Distributed Ledger Group LLC. Distributed as Licensed Company IP to DLG Group Members
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pursuant to the August 7, 2015 Advisory Services Agreement and subject to the Company IP License terms
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set forth therein. Distributed as Non-Project IP to R3 LRC Members pursuant to their respective Member
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and Services Agreements and subject to the Non-Project IP license terms. set forth therein. All other rights reserved._
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# Instructions for installing prerequisite software
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## JDK for Java 8
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Install the Oracle JDK 8u45 or higher. It is possible that OpenJDK will also work but we have not tested with this.
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## Using IntelliJ
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It's a good idea to use a modern IDE. We use IntelliJ. Install IntelliJ version 15 community edition (which is free):
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https://www.jetbrains.com/idea/download/
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Upgrade the Kotlin plugin to the latest version (1.0-beta-2423) by clicking "Configure > Plugins" in the opening screen,
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then clicking "Install JetBrains plugin", then searching for Kotlin, then hitting "Upgrade" and then "Restart".
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Choose "Check out from version control" and use this git URL
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https://your_username@bitbucket.org/R3-CEV/r3prototyping.git
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Agree to the defaults for importing a Gradle project. Wait for it to download the dependencies.
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Right click on the tests directory, click "Run -> All Tests" (note: NOT the first item in the submenu that has the gradle logo next to it).
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The code should build, the unit tests should show as all green.
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You can catch up with the latest code by selecting "VCS -> Update Project" in the menu.
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# Troubleshooting
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## IntelliJ
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If on attempting to open the project, IntelliJ refuses because SDK was not selected, do the following:
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Configure -> Project Defaults -> Project Structure
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on that tab:
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Project Settings / Project
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click on New… next to the red <No SDK> symbol, and select JDK. It should then pop up and show the latest JDK it has found at something like
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jdk1.8.0_xx…/Contents/Home
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Also select Project language level: as 8. Click OK. Open should now work.
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## Quasar
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If you get an error about a missing Quasar agent, then your JVM is being invoked without a needed command line argument.
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Make sure an argument like `-javaagent:lib/quasar.jar` is being passed to the invocation.
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You may need/want to edit your default JUnit run config in IntelliJ to ensure that parameter is being set, along with
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`-Dco.paralleluniverse.fibers.verifyInstrumentation` which is useful to catch mistakes. To do that, click the dropdown
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in the toolbar and select "Edit configurations", then expand the defaults tree, then select JUnit and add the two
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arguments to the VM options edit.
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## "Foo is ambiguous" error during compilation
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Gradle's incremental compilation isn't always reliable. Run `./gradlew clean` and then try again.
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## ClassNotFoundException during Gradle quasarScan task
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Your Gradle build server is hosed. Run `gradle --stop` and then try `gradle clean build`.
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# Accessing Source Without an IDE
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If you don't want to explore or modify the code in a local IDE, you can also just use the command line and a text editor:
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git clone https://your_username@bitbucket.org/R3-CEV/r3prototyping.git
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You will need to have your Bitbucket account set up already from R3. Then:
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cd r3prototyping
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Run the following to run the unit tests:
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./gradlew test
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For the first time only, this will download and configure Gradle.
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Run "git pull" to upgrade
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# Starting point - the Tutorial
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We have prepared a comprehensive tutorial.
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One you have access to the source, open the following in a browser:
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r3prototyping/docs/build/html/index.html
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