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/*
* 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 .
*/
package com.technophobia.substeps.model;
import com.technophobia.substeps.model.exception.SubstepsRuntimeException;
import com.technophobia.substeps.model.parameter.Converter;
import com.technophobia.substeps.model.parameter.ConverterFactory;
import com.technophobia.substeps.runner.ExecutionContext;
import com.typesafe.config.Config;
import org.apache.commons.jexl3.*;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.substeps.runner.JSubstepsConfigKeys;
import org.substeps.runner.NewSubstepsExecutionConfig;
import org.substeps.runner.ParameterSubstitution;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* @author ian
*/
public final class Arguments {
private static final Logger log = LoggerFactory.getLogger(Arguments.class);
String x = JSubstepsConfigKeys.substepsReportDir();
private static final JexlEngine jexl = new JexlBuilder().cache(512).strict(false).silent(false).create();
private Arguments() {
// no op
}
public static Object evaluateExpression(String expressionWithDelimiters){
ParameterSubstitution parameterSubstituionConfig = NewSubstepsExecutionConfig.getParameterSubstituionConfig();
// TODO - check that the expression doesn't contain any of the bad words
// or and eq ne lt gt le ge div mod not null true false new var return
// any of those words need to be qutoed or [' ']
// http://commons.apache.org/proper/commons-jexl/reference/syntax.html
// try evaluating this expression against the executionContext
// TODO check flag to see whether we can evaluate things from the ec
if (expressionWithDelimiters != null && parameterSubstituionConfig.substituteParameters()
&& expressionWithDelimiters.startsWith(parameterSubstituionConfig.startDelimiter())) {
String expression = StringUtils.stripStart(StringUtils.stripEnd(expressionWithDelimiters, parameterSubstituionConfig.endDelimiter()),
parameterSubstituionConfig.startDelimiter());
JexlContext context = new MapContext(ExecutionContext.flatten());
JexlExpression e = jexl.createExpression(expression);
return e.evaluate(context);
}
else {
return expressionWithDelimiters;
}
}
public static String substituteValues(String src, Config cfg) {
ParameterSubstitution parameterSubstituionConfig = NewSubstepsExecutionConfig.getParameterSubstituionConfig();
if (src != null && parameterSubstituionConfig.substituteParameters() &&
src.startsWith(parameterSubstituionConfig.startDelimiter())){
String key = StringUtils.stripStart(StringUtils.stripEnd(src, parameterSubstituionConfig.endDelimiter()),
parameterSubstituionConfig.startDelimiter());
String normalizedValue = src;
if (cfg.hasPath(key)){
String substitute = cfg.getString(key);
if (substitute == null){
throw new SubstepsRuntimeException("Failed to resolve property " + src + " to be substituted ");
}
normalizedValue = substitute;
if (parameterSubstituionConfig.normalizeValues()) {
// This part will support the conversion of properties files containing accented characters
try {
normalizedValue = new String(substitute.getBytes(parameterSubstituionConfig.normalizeFrom()), parameterSubstituionConfig.normalizeTo());
} catch (UnsupportedEncodingException e) {
log.error("error substituting accented characters", e);
}
}
}
return normalizedValue;
}
return src;
}
// 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, Config cfg) {
log.debug("Arguments getArgs String[] with pattern: " + patternString + " and sourceStr: "
+ sourceString);
String[] rtn = null;
ArrayList argsList = null;
String patternCopy = 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 = substituteValues(matcher.group(i), cfg);
if (arg != null) {
if (argsList == null) {
argsList = new ArrayList<>();
}
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
