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//
// ============LICENSE_START=======================================================
// Copyright (C) 2016-2018 Ericsson. All rights reserved.
// ================================================================================
// This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE
// Full license text at https://creativecommons.org/licenses/by/4.0/legalcode
//
// SPDX-License-Identifier: CC-BY-4.0
// ============LICENSE_END=========================================================
//
// @author Sven van der Meer (sven.van.der.meer@ericsson.com)
//
== Introduction to building APEX
APEX is written 100% in Java and uses link:https://maven.apache.org/[Apache Maven] as the build system.
The requirements for building APEX are:
- An installed Java development kit for Java version 8 or higher
** To install a Java SDK please follow these guidelines link:https://docs.oracle.com/javase/8/docs/technotes/guides/install/install_overview.html[Oracle Java 8 SDK].
- Maven 3
** To get Maven 3 running please follow the guidelines for link:https://maven.apache.org/download.cgi[Download] and link:https://maven.apache.org/install.html[Install], and link:https://maven.apache.org/run.html[Run] Maven
- A clone of the APEX source repositories
To get a clone of the APEX source repositories, please see the APEX Installation Guide or the APEX User manual.
One all requirements are in place, APEX can be build.
There are several different artifacts one can create building APEX, most of them defined in their own __profile__.
APEX can also be build in a standard way with standard tests (`mvn clean install`) or without standard tests (`mvn clean install -DskipTests`).
The examples in this document assume that the APEX source repositories are cloned to:
- Unix, Cygwin: `/usr/local/src/apex`
- Windows: `C:\dev\apex`
- Cygwin: `/cygdrive/c/dev/apex`
[IMPORTANT]
.A Build requires ONAP Nexus
====
APEX has a dependency to ONAP parent projects.
You might need to adjust your Maven M2 settings.
The most current settings can be found in the ONAP oparent repo: link:https://git.onap.org/oparent/plain/settings.xml[Settings].
====
[IMPORTANT]
.A Build needs Space
====
Building APEX requires approximately 2-3 GB of hard disc space, 1 GB for the actual build with full distribution and 1-2 GB for the downloaded dependencies
====
[IMPORTANT]
.A Build requires Internet (for first build to download all dependencies and plugins)
====
During the build, several (a lot) of Maven dependencies will be downloaded and stored in the configured local Maven repository.
The first standard build (and any first specific build) requires Internet access to download those dependencies.
====
[IMPORTANT]
.Building RPM distributions
====
RPM images are only build if the `rpm` package is installed (Unix).
To install `rpm` run `sudo apt-get install rpm`, then build APEX.
====
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