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/**
* Arara, the cool TeX automation tool
* Copyright (c) 2012 -- 2018, Paulo Roberto Massa Cereda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the project's author nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.cereda.arara.utils;
import com.github.cereda.arara.controller.ConfigurationController;
import com.github.cereda.arara.controller.LanguageController;
import com.github.cereda.arara.model.AraraException;
import com.github.cereda.arara.model.Conditional;
import com.github.cereda.arara.model.Directive;
import com.github.cereda.arara.model.Messages;
import com.github.cereda.arara.model.Pair;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.error.MarkedYAMLException;
import org.yaml.snakeyaml.representer.Representer;
/**
* Implements directive utilitary methods.
* @author Paulo Roberto Massa Cereda
* @version 4.0
* @since 4.0
*/
public class DirectiveUtils {
// the application messages obtained from the
// language controller
private static final LanguageController messages =
LanguageController.getInstance();
// get the logger context from a factory
private static final Logger logger =
LoggerFactory.getLogger(DirectiveUtils.class);
/**
* Extracts a list of directives from a list of strings.
* @param lines List of strings.
* @return A list of directives.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static List<Directive> extractDirectives(List<String> lines)
throws AraraException {
boolean header = (Boolean) ConfigurationController.
getInstance().get("execution.header");
String regex = (String) ConfigurationController.
getInstance().get("execution.file.pattern");
Pattern linecheck = Pattern.compile(regex);
regex = regex.concat((String) ConfigurationController.
getInstance().get("application.pattern"));
Pattern pattern = Pattern.compile(regex);
List<Pair<Integer, String>> pairs =
new ArrayList<Pair<Integer, String>>();
Matcher matcher;
for (int i = 0; i < lines.size(); i++) {
matcher = pattern.matcher(lines.get(i));
if (matcher.find()) {
String line = lines.get(i).substring(
matcher.end(),
lines.get(i).length()
);
Pair<Integer, String> pair =
new Pair<Integer, String>(i + 1, line);
pairs.add(pair);
logger.info(
messages.getMessage(
Messages.LOG_INFO_POTENTIAL_PATTERN_FOUND,
(i + 1),
line.trim()
)
);
}
else {
if (header) {
if (!checkLinePattern(linecheck, lines.get(i))) {
break;
}
}
}
}
if (pairs.isEmpty()) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_NO_DIRECTIVES_FOUND
)
);
}
List<DirectiveAssembler> assemblers
= new ArrayList<DirectiveAssembler>();
DirectiveAssembler assembler = new DirectiveAssembler();
regex = (String) ConfigurationController.getInstance().
get("directives.linebreak.pattern");
pattern = Pattern.compile(regex);
for (Pair<Integer, String> pair : pairs) {
matcher = pattern.matcher(pair.getSecondElement());
if (matcher.find()) {
if (!assembler.isAppendAllowed()) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_ORPHAN_LINEBREAK,
pair.getFirstElement()
)
);
} else {
assembler.addLineNumber(pair.getFirstElement());
assembler.appendLine(matcher.group(1));
}
} else {
if (assembler.isAppendAllowed()) {
assemblers.add(assembler);
}
assembler = new DirectiveAssembler();
assembler.addLineNumber(pair.getFirstElement());
assembler.appendLine(pair.getSecondElement());
}
}
if (assembler.isAppendAllowed()) {
assemblers.add(assembler);
}
List<Directive> directives = new ArrayList<Directive>();
for (DirectiveAssembler current : assemblers) {
directives.add(generateDirective(current));
}
return directives;
}
/**
* Generates a directive from a directive assembler.
* @param assembler The directive assembler.
* @return The corresponding directive.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static Directive generateDirective(DirectiveAssembler assembler)
throws AraraException {
String regex = (String) ConfigurationController.getInstance().
get("directives.pattern");
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(assembler.getText());
if (matcher.find()) {
Directive directive = new Directive();
directive.setIdentifier(matcher.group(1));
directive.setParameters(
getParameters(matcher.group(3), assembler.getLineNumbers())
);
Conditional conditional = new Conditional();
conditional.setType(getType(matcher.group(5)));
conditional.setCondition(getCondition(matcher.group(6)));
directive.setConditional(conditional);
directive.setLineNumbers(assembler.getLineNumbers());
logger.info(
messages.getMessage(
Messages.LOG_INFO_POTENTIAL_DIRECTIVE_FOUND,
directive
)
);
return directive;
} else {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_INVALID_DIRECTIVE_FORMAT,
CommonUtils.getCollectionElements(
assembler.getLineNumbers(),
"(",
")",
", "
)
)
);
}
}
/**
* Gets the conditional type based on the input string.
* @param text The input string.
* @return The conditional type.
*/
private static Conditional.ConditionalType getType(String text) {
if (text == null) {
return Conditional.ConditionalType.NONE;
} else {
if (text.equals("if")) {
return Conditional.ConditionalType.IF;
} else {
if (text.equals("while")) {
return Conditional.ConditionalType.WHILE;
} else {
if (text.equals("until")) {
return Conditional.ConditionalType.UNTIL;
} else {
return Conditional.ConditionalType.UNLESS;
}
}
}
}
}
/**
* Gets the condition from the input string.
* @param text The input string.
* @return A string representing the condition.
*/
private static String getCondition(String text) {
return text == null ? "" : text;
}
/**
* Gets the parameters from the input string.
* @param text The input string.
* @param numbers The list of line numbers.
* @return A map containing the directive parameters.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
private static Map<String, Object> getParameters(String text,
List<Integer> numbers) throws AraraException {
if (text == null) {
return new HashMap<String, Object>();
}
Yaml yaml = new Yaml(
new Constructor(),
new Representer(),
new DumperOptions(),
new DirectiveResolver()
);
try {
@SuppressWarnings("unchecked")
HashMap<String, Object> map = yaml.loadAs(text, HashMap.class);
return map;
} catch (MarkedYAMLException exception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_YAML_EXCEPTION,
CommonUtils.getCollectionElements(
numbers,
"(",
")",
", "
)
),
exception
);
}
}
/**
* Validates the list of directives, returning a new list.
* @param directives The list of directives.
* @return A new list of directives.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static List<Directive> validate(List<Directive> directives)
throws AraraException {
ArrayList<Directive> result = new ArrayList<Directive>();
for (Directive directive : directives) {
Map<String, Object> parameters = directive.getParameters();
if (parameters.containsKey("file")) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_FILE_IS_RESERVED,
CommonUtils.getCollectionElements(
directive.getLineNumbers(),
"(",
")",
", "
)
)
);
}
if (parameters.containsKey("reference")) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_REFERENCE_IS_RESERVED,
CommonUtils.getCollectionElements(
directive.getLineNumbers(),
"(",
")",
", "
)
)
);
}
if (parameters.containsKey("files")) {
Object holder = parameters.get("files");
if (holder instanceof List) {
@SuppressWarnings("unchecked")
List<Object> files = (List<Object>) holder;
parameters.remove("files");
if (files.isEmpty()) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_EMPTY_FILES_LIST,
CommonUtils.getCollectionElements(
directive.getLineNumbers(),
"(",
")",
", "
)
)
);
}
for (Object file : files) {
Map<String, Object> map = new HashMap<String, Object>();
for (String key : parameters.keySet()) {
map.put(key, parameters.get(key));
}
File representation = CommonUtils.
getCanonicalFile(String.valueOf(file));
map.put("reference", representation);
map.put("file", representation.getName());
Directive addition = new Directive();
Conditional conditional = new Conditional();
conditional.setCondition(directive.getConditional().
getCondition()
);
conditional.setType(directive.getConditional().
getType()
);
addition.setIdentifier(directive.getIdentifier());
addition.setConditional(conditional);
addition.setParameters(map);
addition.setLineNumbers(directive.getLineNumbers());
result.add(addition);
}
} else {
throw new AraraException(
messages.getMessage(
Messages.ERROR_VALIDATE_FILES_IS_NOT_A_LIST,
CommonUtils.getCollectionElements(
directive.getLineNumbers(),
"(",
")",
", "
)
)
);
}
} else {
File representation = (File) ConfigurationController.
getInstance().get("execution.reference");
parameters.put("file", representation.getName());
parameters.put("reference", representation);
directive.setParameters(parameters);
result.add(directive);
}
}
logger.info(
messages.getMessage(
Messages.LOG_INFO_VALIDATED_DIRECTIVES
)
);
logger.info(DisplayUtils.displayOutputSeparator(
messages.getMessage(
Messages.LOG_INFO_DIRECTIVES_BLOCK
)
));
for (Directive directive : result) {
logger.info(directive.toString());
}
logger.info(DisplayUtils.displaySeparator());
return result;
}
/**
* Checks if the provided line contains the corresponding pattern, based on
* the file type, or an empty line.
* @param pattern Pattern to be matched, based on the file type.
* @param line Provided line.
* @return Logical value indicating if the provided line contains the
* corresponding pattern, based on the file type, or an empty line.
*/
private static boolean checkLinePattern(Pattern pattern, String line) {
return CommonUtils.checkEmptyString(line.trim()) ||
pattern.matcher(line).find();
}
}
|