chrissheppard41 / pricechecker

PriceChecker

The price checker compare tool gets the current price for a product. It'll fetch, parse and store only updated prices therefore not clutering up the database with duplicate entries.

This tool makes my life a little easier. If I want to monitor the price of a game, I can simply add it to the website to notify me on the price, to help me get the best deals on products.

This will email daily (maybe in the future will email when there is a change in price for a product within the system). First it will fetch all products that are active, I can enable or disable a product within the admin section (note: there is no point in the admin window being secure if there it's no accessible to the outside world, subject to change). Then it'll email me out a report of all the products within the applicaiton. Simple.

Like to haves:

• Email only when there is a price difference
• Secure the backend admin section with a login
• A page within the admin section that shows the price differences, nice graphs etc
• Convert all to pound if any of the prices are in euro

pricechecker's Issues

Jsoup issue

Doesn't execute javascript meaning we don't get the price value if it's hidden by JS.

Java cron task error

org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.sparky.Price.Product.model.Product.website, could not initialize proxy - no Session
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:587) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Fi
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:204) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:566) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:135) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final]
at org.hibernate.collection.internal.PersistentBag.iterator(PersistentBag.java:277) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final]
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1798) ~[na:1.8.0_144]
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580) ~[na:1.8.0_144]
at com.sparky.Price.Product.model.Product.retrieveWebsitePrices(Product.java:47) ~[classes!/:1.0.0]
at com.sparky.Price.Compare.CompareController.lambda$get$0(CompareController.java:52) ~[classes!/:1.0.0]
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184) ~[na:1.8.0_144]
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[na:1.8.0_144]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374) ~[na:1.8.0_144]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_144]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_144]
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) ~[na:1.8.0_144]
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) ~[na:1.8.0_144]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_144]
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) ~[na:1.8.0_144]
at com.sparky.Price.Compare.CompareController.get(CompareController.java:51) ~[classes!/:1.0.0]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_144]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_144]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65) ~[spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) ~[spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) [spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_144]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_144]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_144]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_144]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]

Sending emails

Send emails only when there is a price change

Price incorrect

Seems to be an issue when extracting the price on a European VPN

Target specific class

If the result returns more than 1 and one of them is 0, it will return 0

Delete cascade

It's not able to delete due to cascade issues

There was an unexpected error (type=Internal Server Error, status=500).
could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement

Deleting Child from parent

It's not deleting