Java tutorial
/** * Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies * * Please see distribution for license. */ package com.opengamma.bbg.loader; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.io.IOUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.ConfigurableApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import au.com.bytecode.opencsv.CSVReader; import au.com.bytecode.opencsv.CSVWriter; import com.opengamma.bbg.referencedata.cache.MongoDBValueCachingReferenceDataProvider; import com.opengamma.bbg.referencedata.impl.BloombergReferenceDataProvider; import com.opengamma.bbg.test.MongoCachedReferenceData; /** * Little util for parsing swaption files */ public class BloombergSwaptionFileLoader { /** Logger. */ private static final Logger s_logger = LoggerFactory.getLogger(BloombergSwaptionFileLoader.class); /* package */static final String CONTEXT_CONFIGURATION_PATH = "/com/opengamma/bbg/loader/bloomberg-security-loader-context.xml"; private static final int NAME_FIELD = 0; private static final int BUID_FIELD = 8; private static BloombergReferenceDataProvider getBloombergSecurityFileLoader() { ConfigurableApplicationContext context = new ClassPathXmlApplicationContext(CONTEXT_CONFIGURATION_PATH); context.start(); BloombergReferenceDataProvider dataProvider = (BloombergReferenceDataProvider) context .getBean("refDataProvider"); return dataProvider; } /** * Little util to parse swaption tickers into a csv for further analysis. * @param args command line params */ public static void main(String[] args) { // CSIGNORE CSVReader csvReader = null; CSVWriter csvWriter = null; try { csvReader = new CSVReader(new BufferedReader(new FileReader(args[0]))); csvWriter = new CSVWriter(new BufferedWriter(new FileWriter(args[1]))); String[] line; Pattern pattern = Pattern.compile("^(\\w\\w\\w).*?(\\d+)(M|Y)(\\d+)(M|Y)\\s*?(PY|RC)\\s*?(.*)$"); BloombergReferenceDataProvider rawBbgRefDataProvider = getBloombergSecurityFileLoader(); MongoDBValueCachingReferenceDataProvider bbgRefDataProvider = MongoCachedReferenceData .makeMongoProvider(rawBbgRefDataProvider, BloombergSwaptionFileLoader.class); while ((line = csvReader.readNext()) != null) { String name = line[NAME_FIELD]; Matcher matcher = pattern.matcher(name); if (matcher.matches()) { String ccy = matcher.group(1); String swapTenorSize = matcher.group(2); String swapTenorUnit = matcher.group(3); String optionTenorSize = matcher.group(4); String optionTenorUnit = matcher.group(5); String payReceive = matcher.group(6); String distanceATM = matcher.group(7); String buid = "/buid/" + line[BUID_FIELD]; String value = bbgRefDataProvider.getReferenceDataValue(buid, "TICKER"); csvWriter.writeNext(new String[] { name, ccy, swapTenorSize, swapTenorUnit, optionTenorSize, optionTenorUnit, payReceive, distanceATM, value }); } else { s_logger.error("Couldn't parse " + name + " field"); } } } catch (IOException ioe) { s_logger.error("Error while reading file", ioe); } finally { IOUtils.closeQuietly(csvReader); IOUtils.closeQuietly(csvWriter); } } }