WhatsApp parsing timeout can break parsing of other WA databases

[lfcnassif]

While testing #1651, processing hundreds of different WA databases together, one of them caused a timeout. Then parsing of a different WA DB fails with trace below:

org.apache.tika.exception.TikaException: WAExtractorException Exception
	at iped.parsers.whatsapp.WhatsAppParser.mergeParsedDBsAndOutputResults(WhatsAppParser.java:728)
	at iped.parsers.whatsapp.WhatsAppParser.parse(WhatsAppParser.java:257)
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:298)
	at iped.parsers.standard.StandardParser.parse(StandardParser.java:245)
	at iped.engine.io.ParsingReader$BackgroundParsing.run(ParsingReader.java:247)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: java.nio.channels.ClosedByInterruptException
	at iped.parsers.whatsapp.Message.getThumbData(Message.java:221)
	at iped.parsers.whatsapp.ReportGenerator.printMessage(ReportGenerator.java:430)
	at iped.parsers.whatsapp.ReportGenerator.lambda$generateNextChatHtml$0(ReportGenerator.java:147)
	at iped.parsers.whatsapp.ReportGenerator$1.lookup(ReportGenerator.java:633)
	at org.apache.commons.text.StringSubstitutor.resolveVariable(StringSubstitutor.java:1148)
	at org.apache.commons.text.StringSubstitutor.substitute(StringSubstitutor.java:1514)
	at org.apache.commons.text.StringSubstitutor.substitute(StringSubstitutor.java:1389)
	at org.apache.commons.text.StringSubstitutor.replace(StringSubstitutor.java:893)
	at iped.parsers.whatsapp.ReportGenerator.printMessageFile(ReportGenerator.java:644)
	at iped.parsers.whatsapp.ReportGenerator.generateNextChatHtml(ReportGenerator.java:125)
	at iped.parsers.whatsapp.WhatsAppParser.createReport(WhatsAppParser.java:281)
	at iped.parsers.whatsapp.WhatsAppParser.mergeParsedDBsAndOutputResults(WhatsAppParser.java:719)
	... 9 more
Caused by: java.nio.channels.ClosedByInterruptException
	at java.base/java.nio.channels.spi.AbstractInterruptibleChannel.end(Unknown Source)
	at java.base/sun.nio.ch.FileChannelImpl.endBlocking(Unknown Source)
	at java.base/sun.nio.ch.FileChannelImpl.readInternal(Unknown Source)
	at java.base/sun.nio.ch.FileChannelImpl.read(Unknown Source)
	at iped.parsers.whatsapp.Message.getThumbData(Message.java:218)
	... 20 more

In sequence many of this are thrown:

org.apache.tika.exception.TikaException: WAExtractorException Exception
	at iped.parsers.whatsapp.WhatsAppParser.mergeParsedDBsAndOutputResults(WhatsAppParser.java:728)
	at iped.parsers.whatsapp.WhatsAppParser.parse(WhatsAppParser.java:257)
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:298)
	at iped.parsers.standard.StandardParser.parse(StandardParser.java:245)
	at iped.engine.io.ParsingReader$BackgroundParsing.run(ParsingReader.java:247)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: java.nio.channels.ClosedChannelException
	at iped.parsers.whatsapp.Message.getThumbData(Message.java:221)
	at iped.parsers.whatsapp.ReportGenerator.printMessage(ReportGenerator.java:430)
	at iped.parsers.whatsapp.ReportGenerator.lambda$generateNextChatHtml$0(ReportGenerator.java:147)
	at iped.parsers.whatsapp.ReportGenerator$1.lookup(ReportGenerator.java:633)
	at org.apache.commons.text.StringSubstitutor.resolveVariable(StringSubstitutor.java:1148)
	at org.apache.commons.text.StringSubstitutor.substitute(StringSubstitutor.java:1514)
	at org.apache.commons.text.StringSubstitutor.substitute(StringSubstitutor.java:1389)
	at org.apache.commons.text.StringSubstitutor.replace(StringSubstitutor.java:893)
	at iped.parsers.whatsapp.ReportGenerator.printMessageFile(ReportGenerator.java:644)
	at iped.parsers.whatsapp.ReportGenerator.generateNextChatHtml(ReportGenerator.java:125)
	at iped.parsers.whatsapp.WhatsAppParser.createReport(WhatsAppParser.java:281)
	at iped.parsers.whatsapp.WhatsAppParser.mergeParsedDBsAndOutputResults(WhatsAppParser.java:719)
	... 9 more
Caused by: java.nio.channels.ClosedChannelException
	at java.base/sun.nio.ch.FileChannelImpl.ensureOpen(Unknown Source)
	at java.base/sun.nio.ch.FileChannelImpl.read(Unknown Source)
	at iped.parsers.whatsapp.Message.getThumbData(Message.java:218)
	... 20 more

When a timeout happens, the parsing thread is interrupted. That can close the thumb cache file channel if it is being read or written. We should reopen the channel if exceptions above are thrown.

[lfcnassif]

Another safer approach would be using a different thumb cache file per WA database being parsed. For now I'll keep the cache file static and reopen it if it is closed.