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/**
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* Alt2XML
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* Copyright © 2014 František Kučera (frantovo.cz)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package cz.frantovo.alt2xml.cli;
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import cz.frantovo.alt2xml.out.Action;
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import cz.frantovo.alt2xml.out.ActionContext;
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import cz.frantovo.alt2xml.out.ActionFactory;
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import cz.frantovo.alt2xml.out.OutputActionException;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Properties;
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import java.util.ServiceLoader;
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import java.util.logging.Level;
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import java.util.logging.LogRecord;
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import java.util.logging.Logger;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.parsers.SAXParser;
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import javax.xml.parsers.SAXParserFactory;
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import org.xml.sax.SAXException;
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import org.xml.sax.SAXNotRecognizedException;
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import org.xml.sax.SAXNotSupportedException;
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/**
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*
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* @author Ing. František Kučera (frantovo.cz)
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*/
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public class CLIStarter {
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// help:exit-codes
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public static final int EXIT_SUCCESS = 0; // doc:success
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public static final int EXIT_UNEXPECTED_ERROR = 1; // doc:unexpected error (probably bug)
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// 2 is reserved: http://www.tldp.org/LDP/abs/html/exitcodes.html#EXITCODESREF
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public static final int EXIT_SAX_ERROR = 3; // doc:SAX error
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public static final int EXIT_CLI_PARSE_ERROR = 4; // doc:CLI options parse error
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public static final int EXIT_CLI_VALIDATE_ERROR = 5; // doc:CLI options validation error
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public static final int EXIT_CONFIGURATION_ERROR = 6; // doc:configuration error
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public static final int EXIT_OUTPUT_ACTION_ERROR = 7; // doc:formatting error
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// public static final int EXIT_BATCH_ERROR = 8; // doc:batch error
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private static final Logger log = Logger.getLogger(CLIStarter.class.getName());
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private static final String PROGRAM_NAME = "alt2xml";
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public static void main(String[] args) {
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log.log(Level.FINE, "Starting " + PROGRAM_NAME);
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int exitCode;
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try {
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CLIParser cliParser = new CLIParser();
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CLIOptions cliOptions = cliParser.parseOptions(args);
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cliOptions.validate();
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Map<String, ActionFactory> actionFactories = new HashMap<>();
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for (ActionFactory f : ServiceLoader.load(ActionFactory.class)) {
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String code = f.getActionCode();
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actionFactories.put(code, f);
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log.log(Level.CONFIG, "Discovered output module: {0} = {1}", new Object[]{code, f.getClass().getName()});
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}
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String actionCode = cliOptions.getAction();
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ActionFactory actionFactory = actionFactories.get(actionCode);
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if (actionFactory == null) {
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InvalidOptionsException e = new InvalidOptionsException();
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e.addProblem(new InvalidOptionsException.OptionProblem("No such output action with code: " + actionCode));
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throw e;
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} else {
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ActionContext actionContext = new ActionContext(cliOptions.getOutputStream());
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actionContext.setActionProperties(cliOptions.getActionProperties());
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actionContext.setActionData(cliOptions.getActionData());
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Action action = actionFactory.getAction(actionContext);
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SAXParserFactory t = SAXParserFactory.newInstance();
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parametrizeParserFactory(t, cliOptions.getReaderFeatures());
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SAXParser p = t.newSAXParser();
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paramtrizeParser(p, cliOptions.getReaderProperties());
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action.run(p, cliOptions.getInputSource());
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}
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log.log(Level.FINE, "All done");
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exitCode = EXIT_SUCCESS;
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} catch (CLIParserException e) {
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log.log(Level.SEVERE, "Unable to parse CLI options", e);
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exitCode = EXIT_CLI_PARSE_ERROR;
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} catch (InvalidOptionsException e) {
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log.log(Level.SEVERE, "Invalid CLI options", e);
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for (InvalidOptionsException.OptionProblem p : e.getProblems()) {
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LogRecord r = new LogRecord(Level.SEVERE, "Option problem: {0}");
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r.setThrown(p.getException());
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r.setParameters(new Object[]{p.getDescription()});
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log.log(r);
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}
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exitCode = EXIT_CLI_VALIDATE_ERROR;
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} catch (OutputActionException e) {
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log.log(Level.SEVERE, "Ouput module problem", e);
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exitCode = EXIT_OUTPUT_ACTION_ERROR;
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} catch (ParserConfigurationException | SAXException e) {
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log.log(Level.SEVERE, "Unable to create SAX parser", e);
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exitCode = EXIT_SAX_ERROR;
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}
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System.exit(exitCode);
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}
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private static void parametrizeParserFactory(SAXParserFactory factory, Map<String, Boolean> features) throws ParserConfigurationException, SAXNotRecognizedException, SAXNotSupportedException {
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for (Entry<String, Boolean> feature : features.entrySet()) {
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factory.setFeature(feature.getKey(), feature.getValue());
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}
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}
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private static void paramtrizeParser(SAXParser parser, Properties readerProperties) throws SAXNotRecognizedException, SAXNotSupportedException {
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for (String name : readerProperties.stringPropertyNames()) {
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parser.setProperty(name, readerProperties.getProperty(name));
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}
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}
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}
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