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/**
* \cond LICENSE
* Arara -- the cool TeX automation tool
* Copyright (c) 2012, 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.
* \endcond
*
* TaskDeployer: This class is responsible for taking the tasks and turning them
* into rara commands.
*/
// package definition
package com.github.arara.utils;
// needed imports
import com.github.arara.exception.AraraException;
import com.github.arara.model.AraraCommand;
import com.github.arara.model.AraraRuleArgument;
import com.github.arara.model.AraraRuleConfig;
import com.github.arara.model.AraraTask;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.*;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang3.SystemUtils;
import org.mvel2.templates.TemplateRuntime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.error.MarkedYAMLException;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.representer.Representer;
/**
* Class responsible for taking the tasks and turning them into Arara commands.
*
* @author Paulo Roberto Massa Cereda
* @version 3.0a
* @since 1.0
*/
public class TaskDeployer {
// the logger
final static Logger logger = LoggerFactory.getLogger(TaskDeployer.class);
// the localization class
final static AraraLocalization localization = AraraLocalization.getInstance();
// the tasks list
private List<AraraTask> tasks;
//the output list with the proper commands
private List<AraraCommand> commands;
// the configuration
private ConfigurationLoader configuration;
/**
* Constructor.
*
* @param tasks The Arara tasks.
*/
public TaskDeployer(List<AraraTask> tasks, ConfigurationLoader configuration) {
// set everything
this.tasks = tasks;
// set the configuration
this.configuration = configuration;
// create the list
commands = new ArrayList<AraraCommand>();
}
/**
* Deploys the tasks and returns the commands list.
*
* @return The Arara commands list.
* @throws Exception Raised if something bad happened.
*/
public List<AraraCommand> deploy() throws Exception {
// log message
logger.info("Deploying tasks into commands.");
// for each task
for (AraraTask currentTask : tasks) {
// get the index where the rule is located
int pathIndex = findRule(currentTask);
// if it's not a negative index, that is, the rule was found
if (pathIndex != -1) {
// deploy plain rule
deployRule(currentTask, pathIndex);
} else {
// not found, throw exception
throw new AraraException(localization.getMessage("Error_RuleNotFound", currentTask.getName()));
}
}
// return the commands
return commands;
}
/**
* Finds the rule in the rules directory.
*
* @param task The task to find.
* @return The rule location.
*/
private int findRule(AraraTask task) {
// get the search path
List<String> paths = configuration.getPaths();
// for every entry in the search path
for (int i = 0; i < paths.size(); i++) {
// if the current task is found in the current path
if (new File(paths.get(i).concat(File.separator).concat(task.getName()).concat(".yaml")).exists()) {
// add an entry to the logger
logger.trace(localization.getMessage("Log_RuleFound", task.getName(), paths.get(i)));
// return the index of the current path
return i;
}
}
// nothing was found, return a negative value
return -1;
}
/**
* Deploys plain rule.
*
* @param task The task.
* @throws Exception The rule has a bad definition.
*/
private void deployRule(AraraTask task, int pathIndex) throws Exception {
// create a representer
Representer representer = new Representer();
// add a class tag
representer.addClassTag(AraraRuleConfig.class, new Tag("!config"));
representer.addClassTag(AraraRuleArgument.class, new Tag("!argument"));
// create a new YAML parser
Yaml yaml = new Yaml(new Constructor(AraraRuleConfig.class), representer);
FileReader fileReader = null;
// new file reader
fileReader = new FileReader(configuration.getPaths().get(pathIndex).concat(File.separator).concat(task.getName()).concat(".yaml"));
// load rule
AraraRuleConfig plainRule = null;
try {
// try to load the rule
plainRule = (AraraRuleConfig) yaml.load(fileReader);
} catch (MarkedYAMLException yamlException) {
// YAML syntax error, throw exception
throw new AraraException(localization.getMessage("Error_InvalidYAMLRule", task.getName(), configuration.getPaths().get(pathIndex)).concat("\n\n").concat(AraraUtils.extractInformationFromYAMLException(yamlException)));
}
try {
// close reader
fileReader.close();
} catch (IOException ioException) {
// do nothing here
}
// check if the rule is invalid
if (plainRule == null) {
// raise an error
throw new AraraException(localization.getMessage("Error_InvalidRule", task.getName(), configuration.getPaths().get(pathIndex)));
}
// verify if the identifier is empty
if (plainRule.getIdentifier() == null) {
// raise error
throw new AraraException(localization.getMessage("Error_EmptyIdentifierRule", task.getName(), configuration.getPaths().get(pathIndex)));
} else {
// check if the rule has a proper name
if (plainRule.getName() == null) {
// raise error
throw new AraraException(localization.getMessage("Error_EmptyNameRule", task.getName(), configuration.getPaths().get(pathIndex)));
} else {
// check if the rule has a proper list of arguments
if (plainRule.getArguments() == null) {
// raise error
throw new AraraException(localization.getMessage("Error_EmptyArgumentsListRule", task.getName(), configuration.getPaths().get(pathIndex)));
}
}
}
// if the rule name doesn't match with the file name
if (!task.getName().equals(plainRule.getIdentifier())) {
// throw exception
throw new AraraException(localization.getMessage("Error_WrongIdentifierRule", task.getName(), configuration.getPaths().get(pathIndex), plainRule.getIdentifier()));
}
// check if the rule has any forbidden identifier
if (plainRule.checkForForbiddenIdentifiers() != null) {
// raise error
throw new AraraException(localization.getMessage("Error_ForbiddenIdentifierRule", task.getName(), configuration.getPaths().get(pathIndex), plainRule.checkForForbiddenIdentifiers()));
}
// get the list of all arguments available in the rule
List<String> availableArgumentsInRule = plainRule.getIdentifiersList();
// add the two reserved keywords
availableArgumentsInRule.add("file");
availableArgumentsInRule.add("item");
// get the parameters for the task
HashMap directiveMap = task.getParameters();
// for every entry in the parameters map of the task, add it to the
// list of available parameters in the directive
List<String> availableArgumentsInDirective = new ArrayList<String>();
for (Object theKey : directiveMap.keySet()) {
availableArgumentsInDirective.add((String) theKey);
}
// find out which arguments are not defined in the directive and in
// the rule
List<String> argumentsNotDefinedInDirective = (List<String>) CollectionUtils.subtract(availableArgumentsInRule, availableArgumentsInDirective);
List<String> argumentsNotDefinedInRule = (List<String>) CollectionUtils.subtract(availableArgumentsInDirective, availableArgumentsInRule);
// if there are invalid arguments in the directive
if (!argumentsNotDefinedInRule.isEmpty()) {
// raise error
throw new AraraException(localization.getMessage("Error_ArgumentsNotDefinedInRule", task.getName(), configuration.getPaths().get(pathIndex), argumentsNotDefinedInRule.toString()));
}
// for all arguments in the rule not mapped in the directive, set
// their default value to an empty string
for (String currentKey : argumentsNotDefinedInDirective) {
directiveMap.put(currentKey, "");
}
// add entries in the arguments map
HashMap argumentMap = new HashMap();
argumentMap.put("file", directiveMap.get("file"));
argumentMap.put("item", directiveMap.get("item"));
directiveMap.remove("file");
directiveMap.remove("item");
argumentMap.put("parameters", directiveMap);
// helper functions added
argumentMap.put("SystemUtils", SystemUtils.class);
argumentMap.put("isEmpty", AraraMethods.class.getMethod("isEmpty", String.class));
argumentMap.put("isNotEmpty", AraraMethods.class.getMethod("isNotEmpty", String.class));
argumentMap.put("isEmpty", AraraMethods.class.getMethod("isEmpty", String.class, String.class));
argumentMap.put("isNotEmpty", AraraMethods.class.getMethod("isNotEmpty", String.class, String.class));
argumentMap.put("isEmpty", AraraMethods.class.getMethod("isEmpty", String.class, String.class, String.class));
argumentMap.put("isNotEmpty", AraraMethods.class.getMethod("isNotEmpty", String.class, String.class, String.class));
argumentMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class));
argumentMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class));
argumentMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class, String.class));
argumentMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class, String.class));
argumentMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class, String.class, String.class));
argumentMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class, String.class, String.class));
argumentMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class, String.class, String.class, String.class));
argumentMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class, String.class, String.class, String.class));
argumentMap.put("trimSpaces", AraraMethods.class.getMethod("trimSpaces", String.class));
argumentMap.put("getFilename", AraraMethods.class.getMethod("getFilename", String.class));
argumentMap.put("getBasename", AraraMethods.class.getMethod("getBasename", String.class));
argumentMap.put("getFiletype", AraraMethods.class.getMethod("getFiletype", String.class));
argumentMap.put("getDirname", AraraMethods.class.getMethod("getDirname", String.class));
argumentMap.put("isFile", AraraMethods.class.getMethod("isFile", String.class));
argumentMap.put("isDir", AraraMethods.class.getMethod("isDir", String.class));
argumentMap.put("isWindows", AraraMethods.class.getMethod("isWindows", String.class, String.class));
argumentMap.put("isLinux", AraraMethods.class.getMethod("isLinux", String.class, String.class));
argumentMap.put("isUnix", AraraMethods.class.getMethod("isUnix", String.class, String.class));
argumentMap.put("isMac", AraraMethods.class.getMethod("isMac", String.class, String.class));
argumentMap.put("isTrue", AraraMethods.class.getMethod("isTrue", boolean.class, String.class));
argumentMap.put("isTrue", AraraMethods.class.getMethod("isTrue", boolean.class, String.class, String.class));
argumentMap.put("isFalse", AraraMethods.class.getMethod("isFalse", boolean.class, String.class));
argumentMap.put("isFalse", AraraMethods.class.getMethod("isFalse", boolean.class, String.class, String.class));
argumentMap.put("getOriginalFile", AraraMethods.class.getMethod("getOriginalFile"));
// create a rule map
HashMap ruleMap = new HashMap();
// for every argument in the rule
for (AraraRuleArgument currentArgument : plainRule.getArguments()) {
// if there's not a default value
if (currentArgument.getDefault() == null) {
// set the default to an empty string
ruleMap.put(currentArgument.getIdentifier(), "");
} else {
// there's actually a default value
try {
// get the default value and apply the template
String defaultValue = (String) TemplateRuntime.eval(currentArgument.getDefault(), argumentMap);
// put the new default value into the rule map
ruleMap.put(currentArgument.getIdentifier(), defaultValue);
} catch (RuntimeException runtimeException) {
// an error occurred, throw exception
throw new AraraException(localization.getMessage("Error_DefaultValueRuntimeErrorRule", currentArgument.getIdentifier(), task.getName(), configuration.getPaths().get(pathIndex), AraraUtils.getVariableFromException(runtimeException)));
}
}
}
// after setting the default values into the rule map, let's add
// the directive parameters and both file and item references
ruleMap.put("parameters", directiveMap);
ruleMap.put("file", argumentMap.get("file"));
ruleMap.put("item", argumentMap.get("item"));
// helper classes
ruleMap.put("SystemUtils", SystemUtils.class);
ruleMap.put("isEmpty", AraraMethods.class.getMethod("isEmpty", String.class));
ruleMap.put("isNotEmpty", AraraMethods.class.getMethod("isNotEmpty", String.class));
ruleMap.put("isEmpty", AraraMethods.class.getMethod("isEmpty", String.class, String.class));
ruleMap.put("isNotEmpty", AraraMethods.class.getMethod("isNotEmpty", String.class, String.class));
ruleMap.put("isEmpty", AraraMethods.class.getMethod("isEmpty", String.class, String.class, String.class));
ruleMap.put("isNotEmpty", AraraMethods.class.getMethod("isNotEmpty", String.class, String.class, String.class));
ruleMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class));
ruleMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class));
ruleMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class, String.class));
ruleMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class, String.class));
ruleMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class, String.class, String.class));
ruleMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class, String.class, String.class));
ruleMap.put("isTrue", AraraMethods.class.getMethod("isTrue", String.class, String.class, String.class, String.class));
ruleMap.put("isFalse", AraraMethods.class.getMethod("isFalse", String.class, String.class, String.class, String.class));
ruleMap.put("trimSpaces", AraraMethods.class.getMethod("trimSpaces", String.class));
ruleMap.put("getFilename", AraraMethods.class.getMethod("getFilename", String.class));
ruleMap.put("getBasename", AraraMethods.class.getMethod("getBasename", String.class));
ruleMap.put("getFiletype", AraraMethods.class.getMethod("getFiletype", String.class));
ruleMap.put("getDirname", AraraMethods.class.getMethod("getDirname", String.class));
ruleMap.put("isFile", AraraMethods.class.getMethod("isFile", String.class));
ruleMap.put("isDir", AraraMethods.class.getMethod("isDir", String.class));
ruleMap.put("isWindows", AraraMethods.class.getMethod("isWindows", String.class, String.class));
ruleMap.put("isLinux", AraraMethods.class.getMethod("isLinux", String.class, String.class));
ruleMap.put("isUnix", AraraMethods.class.getMethod("isUnix", String.class, String.class));
ruleMap.put("isMac", AraraMethods.class.getMethod("isMac", String.class, String.class));
ruleMap.put("isTrue", AraraMethods.class.getMethod("isTrue", boolean.class, String.class));
ruleMap.put("isTrue", AraraMethods.class.getMethod("isTrue", boolean.class, String.class, String.class));
ruleMap.put("isFalse", AraraMethods.class.getMethod("isFalse", boolean.class, String.class));
ruleMap.put("isFalse", AraraMethods.class.getMethod("isFalse", boolean.class, String.class, String.class));
ruleMap.put("getOriginalFile", AraraMethods.class.getMethod("getOriginalFile"));
// remove references to file and item
availableArgumentsInDirective.remove("file");
availableArgumentsInDirective.remove("item");
// for all arguments in the rule
for (AraraRuleArgument currentArgument : plainRule.getArguments()) {
// if the current argument is defined in the directive
if (isArgumentDefinedInDirective(availableArgumentsInDirective, currentArgument)) {
// if there is a valid flag
if (currentArgument.getFlag() != null) {
try {
// get the flag and apply template
String defaultFlag = (String) TemplateRuntime.eval(currentArgument.getFlag(), ruleMap);
// put the new flag reference into the rule map
ruleMap.put(currentArgument.getIdentifier(), defaultFlag);
} catch (RuntimeException runtimeException) {
// an error occurred, throw exception
throw new AraraException(localization.getMessage("Error_FlagRuntimeErrorRule", currentArgument.getIdentifier(), task.getName(), configuration.getPaths().get(pathIndex), AraraUtils.getVariableFromException(runtimeException)));
}
}
}
}
// create a new list of commands to be executed by the current task
List<String> commandsList = new ArrayList<String>();
// if there is a command element in the rule
if (plainRule.getCommand() != null) {
// and if there isn't a list of commands
if (plainRule.getCommands() == null) {
// add the current command to the list of commands to
// be executed
commandsList.add(plainRule.getCommand());
} else {
// both are defined, throw an error
throw new AraraException(localization.getMessage("Error_DuplicatedCommandElementsRule", task.getName(), configuration.getPaths().get(pathIndex)));
}
} else {
// none of the fields is defined
if (plainRule.getCommands() == null) {
// neither of the elements is defined, throw an error
throw new AraraException(localization.getMessage("Error_MissingCommandElementsRule", task.getName(), configuration.getPaths().get(pathIndex)));
} else {
// there's a list of commands, add them to the list
commandsList.addAll(plainRule.getCommands());
}
}
// for every command to be processed
for (String commandTemplate : commandsList) {
try {
// get the current command and apply template
commandTemplate = (String) TemplateRuntime.eval(commandTemplate, ruleMap);
} catch (RuntimeException runtimeException) {
// an error occurred, throw exception
throw new AraraException(localization.getMessage("Error_CommandRuntimeErrorRule", task.getName(), configuration.getPaths().get(pathIndex), AraraUtils.getVariableFromException(runtimeException)));
}
// check if it's a valid command
if (!"".equals(commandTemplate.trim())) {
// create a new command
AraraCommand araraCommand = new AraraCommand();
// add the command
araraCommand.setCommand(commandTemplate);
// add the name
araraCommand.setName(plainRule.getName());
// add to the list
commands.add(araraCommand);
}
}
}
/**
* Checks if the current argument is included in the list of arguments from
* the directive.
*
* @param arguments List of arguments from the directive.
* @param argument The current argument to be analyzed.
* @return A logic value indicating if the current argument is included in
* the list of arguments from the directive.
*/
private boolean isArgumentDefinedInDirective(List<String> arguments, AraraRuleArgument argument) {
// for every argument in the list
for (String current : arguments) {
// if the identifiers match
if (current.equalsIgnoreCase(argument.getIdentifier())) {
// found it
return true;
}
}
// not found
return false;
}
}
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