Setting up apache basic authentication behind a reverse proxy

Question

I currently got the following piece of code:

captureFile = theCaptureFile;
    // If there is only 1 currency it gets the total right away
    if (captureFile.getTotalMoney().size() == 1) {
        Money totalMoney = captureFile.getTotalMoney().values().iterator().next();
        totalAmount  = totalMoney.getAmount();
        currencyCode = totalMoney.getCurrencyCode();
    }
    // If there is more than one currency, goes through every one, converts it to GBP and adds it to the total amount
    else if (captureFile.getTotalMoney().size() > 1) {
        Map<String, Money> totals = captureFile.getTotalMoney();

        for (Entry<String, Money> money : totals.entrySet()) {
            try {
                totalAmount = totalAmount + money.getValue().getEquivalent(BASE_CURRENCY).getAmount();
            } 
            catch (CurrencyNotFoundException e) {
                LOG.error("Getting ExchangeRate:", e);
                totalAmount = null;
                break;
            } 
            catch (ExchangeRateNotFoundException e) {
                LOG.error("Getting ExchangeRate:", e);
                totalAmount = null;
                break;
            }
        }
    }

When the code gets called, the first IF works just fine but, in case there are more than 2 currencies, I get a NullPointerException on the TRY bit. None of those methods have a return null so I'm guessing it is something wrong that I am doing on the mapping part to pull the values out.

Here are the other 2 methods that are pulled off:

public Money getEquivalent(String targetCurrencyCode) throws CurrencyNotFoundException,ExchangeRateNotFoundException {
    if (this.currencyCode.equals(targetCurrencyCode))   {
        return this;
    }
    return getEquivalent(CurrencyCache.get().getCurrency(targetCurrencyCode));
}

and:

public long getAmount() {
    return amount;
}

Any help would be greatly appreciated, any more info you might need just let me know.

Many thanks in advance.

Solution

I've determined the problem was that I had not enabled the ProxyPassReverseCookieDomain directive:

ProxyPassReverseCookieDomain external_addr server1

Hope this helps someone in the future

Comments

[mklauber]

The proxy match code is currently disabled. IT was from an attempt to move the authentication forward to the web facing server. This failed because I realized every edit was simply coming as an anonymous user. I did add the ProxyVia On with no luck.

[Andreas Fester]

Can you post the stack trace you get?

[Kalaiarasan Manimaran]

You can change totalAmount = null; to totalAmount = "" in the catch blocks and give a try.why you want to make totalAmount to be null if for a particular iteration of loop is throwing the exception

[riccardo.cardin]

You never check for nullability your variable. Something like money.getValue().getEquivalent(BASE_CURRENCY).getAmount() could generate a NPE very easily.

[eSp]

@Andreas: java.lang.NullPointerException at CaptureFileInsertOracle.init(CaptureFileInsertOracle.java:46‌​)

[eSp]

@KalaiarasanManimaran: Because I will later pass those to the DB and if it can't calculate I want it to be passed as null.

[Stephen C]

@eSP - that isn't a stacktrace. That is just the first line of a stacktrace ... and it doesn't offer any real clues.

[mklauber]

I will do, as soon as allowed.

[tucuxi]

that assumes that totalAmount is a Long or an Integer (we would need to see its declaration to know for sure) - an alternative explanation would be money.getValue() returning null

[Sergey Kalinichenko]

@tucuxi There is no assumption here: totalAmount is assigned getAmount() in the first branch, and OP shows getAmount()'s signature, which returns long. In the exception handler OP assigns null to totalAmount, its type must be Long.

[tucuxi]

please correct me if I am wrong, but why would long totalAmount (note lowercase L) fail to compile? And why would money.getValue() returning null fail to account for the symptoms?

[Sergey Kalinichenko]

@tucuxi if totalAmount were long, not Long, this assignment from the exception handler would not compile: totalAmount = null; Returning null from money.getValue() would definitely account for the symptoms, but I think that it is a lot less likely, because OP uses exceptions rather than returning nulls in situations where results are unknown (say, because the currency conversion fails).

[tucuxi]

ouch - should have seen it. I was looking for my clues further up.

[eSp]

Will try this approach first as I was under this same impression but disregarded it for some reason. Thanks, will come back with some feedback

[eSp]

@dasblinkenlight Many thanks, it worked like a charm. A lesson I won't forget (hopefully) =)