/*
* Copyright Technophobia Ltd 2012
*
* This file is part of Substeps.
*
* Substeps is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Substeps is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Substeps. If not, see <http://www.gnu.org/licenses/>.
*/
package com.technophobia.substeps.model;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.technophobia.substeps.model.parameter.Converter;
import com.technophobia.substeps.model.parameter.ConverterFactory;
/**
* @author ian
*
*/
public final class Util {
private static final Logger log = LoggerFactory.getLogger(Util.class);
private Util() {
// no op
}
// TODO - these two methods are both used - used to be one, but now it's two
// - could they be combined ??
public static String[] getArgs(final String patternString, final String sourceString, final String[] keywordPrecedence) {
log.debug("Util getArgs String[] with pattern: " + patternString + " and sourceStr: "
+ sourceString);
String[] rtn = null;
ArrayList<String> argsList = null;
String patternCopy = new String(patternString);
if (keywordPrecedence != null && StringUtils.startsWithAny(patternString, keywordPrecedence)){
//
for (String s : keywordPrecedence){
patternCopy = StringUtils.removeStart(patternCopy, s);
}
patternCopy = "(?:" + StringUtils.join(keywordPrecedence, "|") + ")" + patternCopy;
}
final Pattern pattern = Pattern.compile(patternCopy);
final Matcher matcher = pattern.matcher(sourceString);
final int groupCount = matcher.groupCount();
// TODO - this doesn't work if we're not doing strict matching
if (matcher.find()) {
for (int i = 1; i <= groupCount; i++) {
final String arg = matcher.group(i);
if (arg != null) {
if (argsList == null) {
argsList = new ArrayList<String>();
}
argsList.add(arg);
}
}
}
if (argsList != null) {
rtn = argsList.toArray(new String[argsList.size()]);
if (log.isDebugEnabled()) {
final StringBuilder buf = new StringBuilder();
buf.append("returning args: ");
for (final String s : argsList) {
buf.append("[").append(s).append("] ");
}
log.debug(buf.toString());
}
}
return rtn;
}
public static List<Object> getArgs(final String patternString, final String sourceString,
final Class<?>[] parameterTypes, final Class<? extends Converter<?>>[] converterTypes) {
log.debug("Util getArgs List<Object> with pattern: " + patternString + " and sourceStr: "
+ sourceString);
List<Object> argsList = null;
final Pattern pattern = Pattern.compile(patternString);
final Matcher matcher = pattern.matcher(sourceString);
final int groupCount = matcher.groupCount();
int argIdx = 0;
if (matcher.find()) {
for (int i = 1; i <= groupCount; i++) {
final String arg = matcher.group(i);
if (arg != null) {
if (argsList == null) {
argsList = new ArrayList<Object>();
}
argsList.add(getObjectArg(arg, parameterTypes[argIdx], converterTypes[argIdx]));
}
argIdx++;
}
}
return argsList;
}
private static Object getObjectArg(final String stringArgument, final Class<?> desiredType,
final Class<? extends Converter<?>> converter) {
return ConverterFactory.convert(stringArgument, desiredType, converter);
}
}