java plugin

manifests/plugin/java.pp

@@ -0,0 +1,12 @@
+# https://collectd.org/wiki/index.php/Plugin:Java
+class collectd::plugin::java (
+  $ensure   = present,
+  $jvmarg   = [],
+  $interval = undef,
+) {
+  collectd::plugin { 'java':
+    ensure   => $ensure,
+    content  => template('collectd/plugin/java.conf.erb'),
+    interval => $interval,
+  }
+}

spec/classes/collectd_plugin_java_spec.rb

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+require 'spec_helper'
+
+describe 'collectd::plugin::java', :type => :class do
+  let :facts do
+    {:osfamily => 'RedHat'}
+  end
+
+  context ':ensure => present, defaults' do
+    it 'Will load the plugin' do
+      should contain_file('java.load').with({
+        :ensure => 'present',
+        :path => '/etc/collectd.d/10-java.conf',
+      })
+
+      should contain_file('java.load').with_content(/<Plugin java>/)
+      should contain_file('java.load').without_content(/JVMArg/)
+    end
+  end
+
+  context ':ensure => absent' do
+    let (:params) {{
+      :ensure => 'absent',
+    }}
+
+    it 'will not load the plugin' do
+      should contain_file('java.load').with({
+        :ensure => 'absent',
+        :path => '/etc/collectd.d/10-java.conf',
+      })
+    end
+  end
+
+  context 'jvmarg parameter array' do
+    let (:params) {{
+      :jvmarg => %w{ foo bar baz }
+    }}
+
+    it 'will have multiple JVMArg bits' do
+      should contain_file('java.load').with_content(/JVMArg "foo"[\s\n]+JVMArg "bar"[\s\n]+JVMArg "baz"/)
+    end
+  end
+
+  context 'jvmarg parameter string' do
+    let (:params) {{
+      :jvmarg => 'bat'
+    }}
+
+    it 'will have a JVMArg bit' do
+      should contain_file('java.load').with_content(/JVMArg "bat"/)
+    end
+
+    it 'will only have one JVMArg bit' do
+      should contain_file('java.load').without_content(/(.*JVMArg.*){2,}/)
+    end
+  end
+end
+

templates/plugin/java.conf.erb

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+<Plugin java>
+  <% if @jvmarg -%>
+    <% Array(@jvmarg).each do |arg| -%>
+  JVMArg "<%= arg %>"
+    <% end -%>
+  <% end -%>
+</Plugin>