Implemented mandatory license check (#18)

To use this role you must have accepted the "Oracle Binary Code License Agreement
for the Java SE Platform Products and JavaFX".

Enhancement: resolves #17

README.md

@@ -31,6 +31,23 @@ java_home: "{{ java_install_dir }}/jdk{{ java_version }}"
 java_download_dir: "{{ x_ansible_download_dir | default('~/.ansible/tmp/downloads') }}"
 ```
 
+### Oracle Binary Code License Agreement
+
+To use this role you must accept the "Oracle Binary Code License Agreement
+for the Java SE Platform Products and JavaFX"; you can do this by specifying
+the following role variable:
+
+```yaml
+java_license_declaration: 'I accept the "Oracle Binary Code License Agreement for the Java SE Platform Products and JavaFX" under the terms at http://www.oracle.com/technetwork/java/javase/terms/license/index.html'
+```
+
+If you don't want to embed the declaration in your playbook it can be passed
+by adding the following argument when running `ansible-playbook`:
+
+```
+--extra-vars '{"java_license_declaration": "I accept the \"Oracle Binary Code License Agreement for the Java SE Platform Products and JavaFX\" under the terms at http://www.oracle.com/technetwork/java/javase/terms/license/index.html\"}'
+```
+
 ### Supported Java versions
 
 The following versions of Java are supported without any additional

molecule.yml

@@ -1,6 +1,8 @@
 ---
 ansible:
   playbook: tests/test.yml
+  extra_vars:
+    java_license_declaration: 'I accept the "Oracle Binary Code License Agreement for the Java SE Platform Products and JavaFX" under the terms at http://www.oracle.com/technetwork/java/javase/terms/license/index.html'
 
 docker:
   containers:

tasks/main.yml

@@ -22,6 +22,11 @@
       - java_jce_redis_filename not in (None, '')
       - java_jce_redis_folder not in (None, '')
 
+- name: assert Binary Code License accepted
+  assert:
+    that:
+      - java_license_declaration == 'I accept the "Oracle Binary Code License Agreement for the Java SE Platform Products and JavaFX" under the terms at http://www.oracle.com/technetwork/java/javase/terms/license/index.html'
+
 # Create download directory
 - name: create download directory
   file: