/**
* Gets the set of feed item IDs from the function if it is of the form: <code>
* IN(FEED_ITEM_ID,{xxx,xxx})</code>. Otherwise, returns an empty set.
*/
private static Set<Long> getFeedItemIdsFromArgument(Function function) {
Set<Long> feedItemIds = Sets.newHashSet();
if (function.getLhsOperand().length == 1
&& function.getLhsOperand(0) instanceof RequestContextOperand) {
RequestContextOperand requestContextOperand =
(RequestContextOperand) function.getLhsOperand(0);
if (RequestContextOperandContextType.FEED_ITEM_ID.equals(
requestContextOperand.getContextType())
&& FunctionOperator.IN.equals(function.getOperator())) {
for (FunctionArgumentOperand argument : function.getRhsOperand()) {
if (argument instanceof ConstantOperand) {
feedItemIds.add(((ConstantOperand) argument).getLongValue());
}
}
}
}
return feedItemIds;
}
/** Gets the platform restrictions for sitelinks in a campaign. */
private static ExtensionSettingPlatform getPlatformRestictionsForCampaign(
CampaignFeed campaignFeed) {
String platformRestrictions = ExtensionSettingPlatform.NONE.getValue();
if (FunctionOperator.AND.equals(campaignFeed.getMatchingFunction().getOperator())) {
for (FunctionArgumentOperand argument : campaignFeed.getMatchingFunction().getLhsOperand()) {
if (argument instanceof FunctionOperand) {
FunctionOperand operand = (FunctionOperand) argument;
if (FunctionOperator.EQUALS.equals(operand.getValue().getOperator())
&& (operand.getValue().getLhsOperand(0) instanceof RequestContextOperand)) {
RequestContextOperand requestContextOperand =
(RequestContextOperand) operand.getValue().getLhsOperand(0);
if (RequestContextOperandContextType.DEVICE_PLATFORM.equals(
requestContextOperand.getContextType())) {
platformRestrictions =
((ConstantOperand) operand.getValue().getRhsOperand(0)).getStringValue();
}
}
}
}
}
return ExtensionSettingPlatform.fromString(platformRestrictions.toUpperCase());
}