X-Git-Url: http://www2.svjatoslav.eu/gitweb/?p=svjatoslav_commons.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fcommons%2Fcommandline%2Fparameterparser%2FParser.java;h=63a95f9d8b97920aba1d12249c27b8641534bf55;hp=7ee27a04550b24a5c0bbf945cdf7320cdcd71595;hb=9bf004ce4e9b5edff36c65fcc8cc0f303390d7fc;hpb=afaa928dd10304ee3e8e6bad3a377ced6a7b2f42 diff --git a/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parser.java b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parser.java index 7ee27a0..63a95f9 100755 --- a/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parser.java +++ b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parser.java @@ -18,86 +18,84 @@ import java.util.ArrayList; */ public class Parser { - private final ArrayList> parameters = new ArrayList>(); - - public > E add(final E parameter) { - parameters.add(parameter); - return parameter; - } - - /** - * @return true if no errors were found. false - * otherwise. - */ - private boolean checkMandatoryArgumentsPresent() { - - for (final Parameter parameter : parameters) - if (parameter.isMandatory() && (!parameter.isParameterSpecified())) { - System.out.println("Error! Mandatory parameter (" - + parameter.getAliases() + ") is not specified."); - return false; - } - - return true; - } - - /** - * Return parameter by given alias or null if no parameter - * exists for given alias. - * - * @param alias - * parameter alias - * @return found parameter or null if parameter was not found. - */ - public Parameter findParameterByAlias(final String alias) { - - for (final Parameter parameter : parameters) - if (parameter.matchesAlias(alias)) - return parameter; - - return null; - } - - /** - * @param args - * commandline arguments - * @return true if no errors were found. false - * otherwise. - */ - public boolean parse(final String[] args) { - - Parameter currentParameter = null; - - for (final String argument : args) { - - final Parameter parameterForAlias = findParameterByAlias(argument); - if (parameterForAlias == null) { - if (currentParameter == null) { - System.out.println("Unknown commandline parameter: " - + argument); - return false; - } - - if (!currentParameter.addArgument(argument)) - return false; - - } else { - if (currentParameter != null) - if (!currentParameter.noMoreArguments()) - return false; - - parameterForAlias.setParameterSpecified(true); - currentParameter = parameterForAlias; - } - - } - - return checkMandatoryArgumentsPresent(); - } - - public void showHelp() { - for (final Parameter parameter : parameters) - System.out.println(parameter.getHelp()); - } + private final ArrayList> parameters = new ArrayList<>(); + + public > E add(final E parameter) { + parameters.add(parameter); + return parameter; + } + + /** + * @return true if no errors were found. false + * otherwise. + */ + private boolean checkMandatoryArgumentsPresent() { + + for (final Parameter parameter : parameters) + if (parameter.isMandatory() && (!parameter.isParameterSpecified())) { + System.out.println("Error! Mandatory parameter (" + + parameter.getAliases() + ") is not specified."); + return false; + } + + return true; + } + + /** + * Return parameter by given alias or null if no parameter + * exists for given alias. + * + * @param alias parameter alias + * @return found parameter or null if parameter was not found. + */ + public Parameter findParameterByAlias(final String alias) { + + for (final Parameter parameter : parameters) + if (parameter.matchesAlias(alias)) + return parameter; + + return null; + } + + /** + * @param args commandline arguments + * @return true if no errors were found. false + * otherwise. + */ + public boolean parse(final String[] args) { + + Parameter currentParameter = null; + + for (final String argument : args) { + + final Parameter parameterForAlias = findParameterByAlias(argument); + if (parameterForAlias == null) { + if (currentParameter == null) { + System.out.println("Unknown commandline parameter: " + + argument); + return false; + } + + if (!currentParameter.addArgument(argument)) + return false; + + } else { + if (currentParameter != null) + if (!currentParameter.noMoreArguments()) + return false; + + parameterForAlias.setParameterSpecified(true); + currentParameter = parameterForAlias; + } + + } + + return checkMandatoryArgumentsPresent(); + } + + public void showHelp() { + for (final Parameter parameter : parameters) + System.out.println(parameter.getHelp()); + } }