Java tutorial
/** * Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies * * Please see distribution for license. */ package com.opengamma.integration.tool.marketdata; import org.apache.commons.cli.Option; import org.apache.commons.cli.Options; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.opengamma.component.tool.AbstractTool; import com.opengamma.financial.tool.ToolContext; import com.opengamma.integration.copier.snapshot.copier.SimpleSnapshotCopier; import com.opengamma.integration.copier.snapshot.copier.SnapshotCopier; import com.opengamma.integration.copier.snapshot.reader.FileSnapshotReader; import com.opengamma.integration.copier.snapshot.reader.SnapshotReader; import com.opengamma.integration.copier.snapshot.writer.MasterSnapshotWriter; import com.opengamma.integration.copier.snapshot.writer.SnapshotWriter; import com.opengamma.master.marketdatasnapshot.MarketDataSnapshotMaster; import com.opengamma.scripts.Scriptable; /** The entry point for running OpenGamma batches. */ @Scriptable public class MarketDataSnapshotImportTool extends AbstractTool<ToolContext> { /** Logger. */ private static final Logger s_logger = LoggerFactory.getLogger(MarketDataSnapshotImportTool.class); /** File name option flag */ private static final String FILE_NAME_OPTION = "f"; private static ToolContext s_context; //------------------------------------------------------------------------- /** * Main method to run the tool. No arguments are needed. * * @param args the arguments, no null */ public static void main(final String[] args) { // CSIGNORE final boolean success = new MarketDataSnapshotImportTool().initAndRun(args, ToolContext.class); System.exit(success ? 0 : 1); } @Override protected void doRun() throws Exception { s_context = getToolContext(); SnapshotReader snapshotReader = constructSnapshotReader(getCommandLine().getOptionValue(FILE_NAME_OPTION)); SnapshotWriter snapshotWriter = constructSnapshotWriter(); SnapshotCopier snapshotCopier = new SimpleSnapshotCopier(); snapshotCopier.copy(snapshotReader, snapshotWriter); // close the reader and writer snapshotReader.close(); snapshotWriter.close(); } private static SnapshotReader constructSnapshotReader(String filename) { return new FileSnapshotReader(filename); } private static SnapshotWriter constructSnapshotWriter() { MarketDataSnapshotMaster marketDataSnapshotMaster = s_context.getMarketDataSnapshotMaster(); if (marketDataSnapshotMaster == null) { s_logger.warn("No market data snapshot masters found at {}", s_context); } return new MasterSnapshotWriter(marketDataSnapshotMaster); } //------------------------------------------------------------------------- @Override protected Options createOptions(boolean mandatoryConfig) { final Options options = super.createOptions(mandatoryConfig); options.addOption(createFilenameOption()); return options; } private static Option createFilenameOption() { final Option option = new Option(FILE_NAME_OPTION, "filename", true, "The path to the file to import"); option.setRequired(true); return option; } }