Forbidden engines

<span class="help-inline" style="display:block">
			It is rarely needed to modify these settings<br />
			Map of recipe type (join, grouping, window, ...) -> list of recipe engine names. For each recipe type, the first "valid" preferred engine will be auto-selected.
			<br />
			Recipe names are: join, grouping, window, shaker (prepare), sync, topn, sort, sync, ... Standard engine names are: DSS, SPARK, HIVE, IMPALA, SQL.
			<br />
			Example: <code style="font-size: inherit">{ "sync" : ["SPARK", "IMPALA"] }</code>
		</span>
	</div>
</div>

<div class="control-group">
	<label for="" class="control-label">Preferred engines</label>
	<div class="controls">
		<textarea json-object-pretty-view ng-model="model.preferenceByRecipeType" style="width: 100%; box-sizing: border-box; min-height: 200px"/>
		<span class="help-inline" style="display: block">
			It is rarely needed to modify these settings<br />
			Map of recipe type -> list of recipe engine names (see above).
		</span>
	</div>
</div>

<div class="control-group">
	<label for="" class="control-label">Universally forbidden engines</label>
	<div class="controls">
		<input type="text" comma-separated-view ng-model="model.forbiddenEngines" />
		<span class="help-inline" style="display:block">
			<span ng-class="{'text-warning':model.forbiddenEngines.length>0 }">It is not recommended to use this setting. Prefer per-recipe-type settings.</span><br />
			Comma-separated list of engine names that will never be considered (see above).
		</span>
	</div>
</div>

<div class="control-group">
	<label for="" class="control-label">Always preferred engines</label>
	<div class="controls">
		<input type="text" comma-separated-view ng-model="model.enginesPreferenceOrder" />
		<span class="help-inline" style="display: block">
			<span ng-class="{'text-warning':model.enginesPreferenceOrder.length>0 }">It is not recommended to use this setting. Prefer per-recipe-type settings.</span>
			<br />
            Comma-separated list of engine names that will be considered before the default
			order, from the most preferred to the least preferred (see above).
		</span>
	</div>
</div>