metron-deployment/roles/java_jdk/tasks/main.yml

#
#  Licensed to the Apache Software Foundation (ASF) under one or more
#  contributor license agreements.  See the NOTICE file distributed with
#  this work for additional information regarding copyright ownership.
#  The ASF licenses this file to You under the Apache License, Version 2.0
#  (the "License"); you may not use this file except in compliance with
#  the License.  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#
---
- name: Check for java at "{{ java_home }}"
  stat: path="{{ java_home }}"
  register: jdk_dir

- name: Alternatives link for java
  alternatives: name={{ item.name }} link={{ item.link }}  path={{ item.path }}
  with_items:
    - { name: java, link: /usr/bin/java, path: "{{ java_home }}/bin/java" }
    - { name: jar, link: /usr/bin/jar, path: "{{ java_home }}/bin/jar" }
  when: jdk_dir.stat.exists

- name: Install openjdk
  yum: name={{item}}
  with_items:
    - java-1.8.0-openjdk
    - java-1.8.0-openjdk-devel
  when: not jdk_dir.stat.exists