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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.Argument;
import com.github.cereda.arara.model.Command;
import com.github.cereda.arara.model.Conditional;
import com.github.cereda.arara.model.Messages;
import com.github.cereda.arara.model.Rule;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.Transformer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.zeroturnaround.exec.InvalidExitValueException;
import org.zeroturnaround.exec.ProcessExecutor;
import org.zeroturnaround.exec.listener.ShutdownHookProcessDestroyer;
/**
* Implements interpreter utilitary methods.
* @author Paulo Roberto Massa Cereda
* @version 4.0
* @since 4.0
*/
public class InterpreterUtils {
// 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(InterpreterUtils.class);
/**
* Gets a list of all rule arguments.
* @param rule The provided rule.
* @return A list of strings containing all rule arguments.
*/
public static List<String> getRuleArguments(Rule rule) {
Collection<String> result = CollectionUtils.collect(
rule.getArguments(), new Transformer<Argument, String>() {
public String transform(Argument input) {
return input.getIdentifier();
}
});
return new ArrayList<String>(result);
}
/**
* Checks if the current conditional has a prior evaluation.
* @param conditional The current conditional object.
* @return A boolean value indicating if the current conditional has a prior
* evaluation.
*/
public static boolean runPriorEvaluation(Conditional conditional) {
if (((Boolean) ConfigurationController.getInstance().
get("execution.dryrun")) == true) {
return false;
}
switch (conditional.getType()) {
case IF:
case WHILE:
case UNLESS:
return true;
default:
return false;
}
}
/**
* Runs the command in the underlying operating system.
* @param command An object representing the command.
* @return An integer value representing the exit code.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static int run(Object command) throws AraraException {
boolean verbose = (Boolean) ConfigurationController.
getInstance().get("execution.verbose");
boolean timeout = (Boolean) ConfigurationController.
getInstance().get("execution.timeout");
long value = (Long) ConfigurationController.
getInstance().get("execution.timeout.value");
TimeUnit unit = (TimeUnit) ConfigurationController.
getInstance().get("execution.timeout.unit");
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ProcessExecutor executor = new ProcessExecutor();
if (CommonUtils.checkClass(Command.class, command)) {
executor = executor.command(((Command) command).getElements());
if (((Command) command).hasWorkingDirectory()) {
executor = executor.directory(
((Command) command).getWorkingDirectory()
);
}
} else {
executor = executor.commandSplit((String) command);
}
if (timeout) {
if (value == 0) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_RUN_TIMEOUT_INVALID_RANGE
)
);
}
executor = executor.timeout(value, unit);
}
TeeOutputStream tee;
if (verbose) {
tee = new TeeOutputStream(System.out, buffer);
executor = executor.redirectInput(System.in);
} else {
tee = new TeeOutputStream(buffer);
}
executor = executor.redirectOutput(tee).redirectError(tee);
ShutdownHookProcessDestroyer hook = new ShutdownHookProcessDestroyer();
executor = executor.addDestroyer(hook);
try {
int exit = executor.execute().getExitValue();
logger.info(DisplayUtils.displayOutputSeparator(
messages.getMessage(
Messages.LOG_INFO_BEGIN_BUFFER
)
));
logger.info(buffer.toString());
logger.info(DisplayUtils.displayOutputSeparator(
messages.getMessage(
Messages.LOG_INFO_END_BUFFER
)
));
return exit;
} catch (IOException ioexception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_RUN_IO_EXCEPTION
),
ioexception
);
} catch (InterruptedException iexception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_RUN_INTERRUPTED_EXCEPTION
),
iexception
);
} catch (InvalidExitValueException ievexception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_RUN_INVALID_EXIT_VALUE_EXCEPTION
),
ievexception
);
} catch (TimeoutException texception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_RUN_TIMEOUT_EXCEPTION
),
texception
);
} catch (Exception exception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_RUN_GENERIC_EXCEPTION
),
exception
);
}
}
/**
* Builds the rule path based on the rule name and returns the corresponding
* file location.
* @param name The rule name.
* @return The rule file.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static File buildRulePath(String name) throws AraraException {
@SuppressWarnings("unchecked")
List<String> paths = (List<String>) ConfigurationController.
getInstance().get("execution.rule.paths");
for (String path : paths) {
File location = new File(construct(path, name));
if (location.exists()) {
return location;
}
}
return null;
}
/**
* Constructs the path given the current path and the rule name.
* @param path The current path.
* @param name The rule name.
* @return The constructed path.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static String construct(String path, String name)
throws AraraException {
name = name.concat(".yaml");
File location = new File(path);
if (location.isAbsolute()) {
return CommonUtils.buildPath(path, name);
} else {
File reference = (File) ConfigurationController.
getInstance().get("execution.reference");
String parent = CommonUtils.buildPath(
CommonUtils.getParentCanonicalPath(reference), path);
return CommonUtils.buildPath(parent, name);
}
}
}
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