76 lines
1.8 KiB
Java
76 lines
1.8 KiB
Java
/**
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*
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*/
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package org.gcube.accounting.persistence;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.PrintWriter;
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import org.gcube.accounting.aggregation.scheduler.AggregationScheduler;
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import org.gcube.accounting.datamodel.UsageRecord;
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/**
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* @author Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/
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*/
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public class FallbackPersistenceBackend extends AccountingPersistenceBackend {
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private File accountingFallbackFile;
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/**
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* @return the accountingFallbackFile
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*/
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protected File getAccountingFallbackFile() {
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return accountingFallbackFile;
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}
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protected FallbackPersistenceBackend(File accountingFallbackFile) {
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super(null, AggregationScheduler.newInstance());
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this.accountingFallbackFile = accountingFallbackFile;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void prepareConnection(AccountingPersistenceConfiguration configuration) {
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// Nothing TO DO
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}
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/**
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* {@inheritDoc}
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* This method is synchronized on {@link File} used, so any actions which
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* has to modify, rename or delete the file must be synchronized on this
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* file. To retrieve it use {@link #getAccountingFallbackFile()} method.
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* This is intended for internal library usage only so that is protected
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*/
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@Override
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protected void reallyAccount(UsageRecord usageRecord) throws Exception {
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printLine(String.valueOf( usageRecord));
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}
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public void printLine(String line) throws Exception {
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synchronized (accountingFallbackFile) {
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try(FileWriter fw = new FileWriter(accountingFallbackFile, true);
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BufferedWriter bw = new BufferedWriter(fw);
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PrintWriter out = new PrintWriter(bw)){
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out.println(line);
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out.flush();
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} catch( IOException e ){
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throw e;
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}
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void close() throws Exception {
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// Nothing TO DO
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}
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}
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