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/*
* Copyright 2018-2021 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright 2018-2021 Ping Identity Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (C) 2018-2021 Ping Identity Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.sdk.unboundidds.tasks;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import com.unboundid.ldap.sdk.Attribute;
import com.unboundid.ldap.sdk.Entry;
import com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
import com.unboundid.util.Nullable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import static com.unboundid.ldap.sdk.unboundidds.tasks.TaskMessages.*;
/**
* This class defines a Directory Server task that can be used to cause the
* server to execute a specified command with a given set of arguments.
*
*
* NOTE: This class, and other classes within the
* {@code com.unboundid.ldap.sdk.unboundidds} package structure, are only
* supported for use against Ping Identity, UnboundID, and
* Nokia/Alcatel-Lucent 8661 server products. These classes provide support
* for proprietary functionality or for external specifications that are not
* considered stable or mature enough to be guaranteed to work in an
* interoperable way with other types of LDAP servers.
*
*
* The server imposes limitation on the commands that can be executed and on the
* circumstances in which they can be invoked. See the
* exec-command-whitelist.txt file in the server's config directory for a
* summary of these restrictions, and for additional information about exec
* tasks.
*
* The properties that are available for use with this type of task include:
*
*
The absolute path to the command to execute. This must be
* provided.
*
An optional string with arguments to provide to the command.
*
An optional path to a file to which the command's output should be
* written.
*
An optional boolean flag that indicates whether to log the command's
* output to the server error log.
*
An optional string that specifies the task state that should be used
* if the command completes with a nonzero exit code.
*
An optional string that specifies the path to the working directory to
* use when executing the command.
*
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class ExecTask
extends Task
{
/**
* The fully-qualified name of the Java class that is used for the exec task.
*/
@NotNull static final String EXEC_TASK_CLASS =
"com.unboundid.directory.server.tasks.ExecTask";
/**
* The name of the attribute used to specify the absolute path for the command
* to be executed.
*/
@NotNull private static final String ATTR_COMMAND_PATH =
"ds-task-exec-command-path";
/**
* The name of the attribute used to specify the argument string to provide
* when running the command.
*/
@NotNull private static final String ATTR_COMMAND_ARGUMENTS =
"ds-task-exec-command-arguments";
/**
* The name of the attribute used to specify the path to a file in which the
* command's output should be recorded.
*/
@NotNull private static final String ATTR_COMMAND_OUTPUT_FILE =
"ds-task-exec-command-output-file";
/**
* The name of the attribute used to indicate whether to record the command's
* output in the server error log.
*/
@NotNull private static final String ATTR_LOG_COMMAND_OUTPUT =
"ds-task-exec-log-command-output";
/**
* The name of the attribute used to specify the task state for commands that
* complete with a nonzero exit code.
*/
@NotNull private static final String ATTR_TASK_STATE_FOR_NONZERO_EXIT_CODE =
"ds-task-exec-task-completion-state-for-nonzero-exit-code";
/**
* The name of the attribute used to specify the path to the working directory
* to use when executing the command.
*/
@NotNull private static final String ATTR_WORKING_DIRECTORY =
"ds-task-exec-working-directory";
/**
* The name of the object class used in EXEC task entries.
*/
@NotNull private static final String OC_EXEC_TASK = "ds-task-exec";
/**
* The task property that will be used for the command path.
*/
@NotNull private static final TaskProperty PROPERTY_COMMAND_PATH =
new TaskProperty(ATTR_COMMAND_PATH,
INFO_EXEC_DISPLAY_NAME_COMMAND_PATH.get(),
INFO_EXEC_DESCRIPTION_COMMAND_PATH.get(), String.class, true, false,
false);
/**
* The task property that will be used for the command arguments.
*/
@NotNull private static final TaskProperty PROPERTY_COMMAND_ARGUMENTS =
new TaskProperty(ATTR_COMMAND_ARGUMENTS,
INFO_EXEC_DISPLAY_NAME_COMMAND_ARGUMENTS.get(),
INFO_EXEC_DESCRIPTION_COMMAND_ARGUMENTS.get(), String.class, false,
false, false);
/**
* The task property that will be used for the command output file.
*/
@NotNull private static final TaskProperty PROPERTY_COMMAND_OUTPUT_FILE =
new TaskProperty(ATTR_COMMAND_OUTPUT_FILE,
INFO_EXEC_DISPLAY_NAME_COMMAND_OUTPUT_FILE.get(),
INFO_EXEC_DESCRIPTION_COMMAND_OUTPUT_FILE.get(), String.class, false,
false, false);
/**
* The task property that will be used for the log command output flag.
*/
@NotNull private static final TaskProperty PROPERTY_LOG_COMMAND_OUTPUT =
new TaskProperty(ATTR_LOG_COMMAND_OUTPUT,
INFO_EXEC_DISPLAY_NAME_LOG_COMMAND_OUTPUT.get(),
INFO_EXEC_DESCRIPTION_LOG_COMMAND_OUTPUT.get(), Boolean.class, false,
false, false);
/**
* The task property that will be used for the task state for commands that
* complete with a nonzero exit code.
*/
@NotNull private static final TaskProperty
PROPERTY_TASK_STATE_FOR_NONZERO_EXIT_CODE = new TaskProperty(
ATTR_TASK_STATE_FOR_NONZERO_EXIT_CODE,
INFO_EXEC_DISPLAY_NAME_TASK_STATE_FOR_NONZERO_EXIT_CODE.get(),
INFO_EXEC_DESCRIPTION_TASK_STATE_FOR_NONZERO_EXIT_CODE.get(),
String.class, false, false, false,
new String[]
{
"STOPPED_BY_ERROR",
"STOPPED-BY-ERROR",
"COMPLETED_WITH_ERRORS",
"COMPLETED-WITH-ERRORS",
"COMPLETED_SUCCESSFULLY",
"COMPLETED-SUCCESSFULLY"
});
/**
* The task property that will be used for path to use as the the path to the
* working directory to use when executing the command.
*/
@NotNull private static final TaskProperty PROPERTY_WORKING_DIRECTORY =
new TaskProperty(ATTR_WORKING_DIRECTORY,
INFO_EXEC_DISPLAY_NAME_WORKING_DIRECTORY.get(),
INFO_EXEC_DESCRIPTION_WORKING_DIRECTORY.get(),
String.class, false, false, false);
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -1647609631634328008L;
// Indicates whether command output is to be logged.
@Nullable private final Boolean logCommandOutput;
// The arguments to provide when executing the command.
@Nullable private final String commandArguments;
// The path to the file to which command output should be written.
@Nullable private final String commandOutputFile;
// The path to the command to be executed.
@NotNull private final String commandPath;
// The name of the task state that should be used if the command completes
// with a nonzero exit code.
@Nullable private final String taskStateForNonZeroExitCode;
// The path to the working directory to use when executing the command.
@Nullable private final String workingDirectory;
/**
* Creates a new, uninitialized exec task instance that should only be used
* for obtaining general information about this task, including the task name,
* description, and supported properties. Attempts to use a task created with
* this constructor for any other reason will likely fail.
*/
public ExecTask()
{
commandPath = null;
commandArguments = null;
commandOutputFile = null;
logCommandOutput = null;
taskStateForNonZeroExitCode = null;
workingDirectory = null;
}
/**
* Creates a new exec task with the provided information.
*
* @param commandPath
* The absolute path (on the server filesystem) to the command
* that should be executed. This must not be {@code null}.
* @param commandArguments
* The complete set of arguments that should be used when
* running the command. This may be {@code null} if no arguments
* should be provided.
* @param commandOutputFile
* The path to an output file that should be used to record all
* output that the command writes to standard output or standard
* error. This may be {@code null} if the command output should
* not be recorded in a file.
* @param logCommandOutput
* Indicates whether to record the command output in the server
* error log. If this is {@code true}, then all non-blank lines
* that the command writes to standard output or standard error
* will be recorded in the server error log. if this is
* {@code false}, then the output will not be recorded in the
* server error log. If this is {@code null}, then the server
* will determine whether to log command output. Note that a
* value of {@code true} should only be used if you are certain
* that the tool will only generate text-based output, and you
* should use {@code false} if you know that the command may
* generate non-text output.
* @param taskStateForNonZeroExitCode
* The task state that should be used if the command completes
* with a nonzero exit code. This may be {@code null} to
* indicate that the server should determine the appropriate task
* state. If it is non-{@code null}, then the value must be one
* of {@link TaskState#STOPPED_BY_ERROR},
* {@link TaskState#COMPLETED_WITH_ERRORS}, or
* {@link TaskState#COMPLETED_SUCCESSFULLY}.
*
* @throws TaskException If there is a problem with any of the provided
* arguments.
*/
public ExecTask(@NotNull final String commandPath,
@Nullable final String commandArguments,
@Nullable final String commandOutputFile,
@Nullable final Boolean logCommandOutput,
@Nullable final TaskState taskStateForNonZeroExitCode)
throws TaskException
{
this(null, commandPath, commandArguments, commandOutputFile,
logCommandOutput, taskStateForNonZeroExitCode, null, null, null, null,
null);
}
/**
* Creates a new exec task with the provided information.
*
* @param commandPath
* The absolute path (on the server filesystem) to the command
* that should be executed. This must not be {@code null}.
* @param commandArguments
* The complete set of arguments that should be used when
* running the command. This may be {@code null} if no arguments
* should be provided.
* @param commandOutputFile
* The path to an output file that should be used to record all
* output that the command writes to standard output or standard
* error. This may be {@code null} if the command output should
* not be recorded in a file.
* @param logCommandOutput
* Indicates whether to record the command output in the server
* error log. If this is {@code true}, then all non-blank lines
* that the command writes to standard output or standard error
* will be recorded in the server error log. if this is
* {@code false}, then the output will not be recorded in the
* server error log. If this is {@code null}, then the server
* will determine whether to log command output. Note that a
* value of {@code true} should only be used if you are certain
* that the tool will only generate text-based output, and you
* should use {@code false} if you know that the command may
* generate non-text output.
* @param taskStateForNonZeroExitCode
* The task state that should be used if the command completes
* with a nonzero exit code. This may be {@code null} to
* indicate that the server should determine the appropriate task
* state. If it is non-{@code null}, then the value must be one
* of {@link TaskState#STOPPED_BY_ERROR},
* {@link TaskState#COMPLETED_WITH_ERRORS}, or
* {@link TaskState#COMPLETED_SUCCESSFULLY}.
* @param workingDirectory
* The path to the working directory to use when executing the
* command.
*
* @throws TaskException If there is a problem with any of the provided
* arguments.
*/
public ExecTask(@NotNull final String commandPath,
@Nullable final String commandArguments,
@Nullable final String commandOutputFile,
@Nullable final Boolean logCommandOutput,
@Nullable final TaskState taskStateForNonZeroExitCode,
@Nullable final String workingDirectory)
throws TaskException
{
this(null, commandPath, commandArguments, commandOutputFile,
logCommandOutput, taskStateForNonZeroExitCode, workingDirectory, null,
null, null, null, null, null, null, null, null, null);
}
/**
* Creates a new exec task with the provided information.
*
* @param taskID
* The task ID to use for this task. If it is {@code null} then
* a UUID will be generated for use as the task ID.
* @param commandPath
* The absolute path (on the server filesystem) to the command
* that should be executed. This must not be {@code null}.
* @param commandArguments
* The complete set of arguments that should be used when
* running the command. This may be {@code null} if no arguments
* should be provided.
* @param commandOutputFile
* The path to an output file that should be used to record all
* output that the command writes to standard output or standard
* error. This may be {@code null} if the command output should
* not be recorded in a file.
* @param logCommandOutput
* Indicates whether to record the command output in the server
* error log. If this is {@code true}, then all non-blank lines
* that the command writes to standard output or standard error
* will be recorded in the server error log. if this is
* {@code false}, then the output will not be recorded in the
* server error log. If this is {@code null}, then the server
* will determine whether to log command output. Note that a
* value of {@code true} should only be used if you are certain
* that the tool will only generate text-based output, and you
* should use {@code false} if you know that the command may
* generate non-text output.
* @param taskStateForNonZeroExitCode
* The task state that should be used if the command completes
* with a nonzero exit code. This may be {@code null} to
* indicate that the server should determine the appropriate task
* state. If it is non-{@code null}, then the value must be one
* of {@link TaskState#STOPPED_BY_ERROR},
* {@link TaskState#COMPLETED_WITH_ERRORS}, or
* {@link TaskState#COMPLETED_SUCCESSFULLY}.
* @param scheduledStartTime
* The time that this task should start running.
* @param dependencyIDs
* The list of task IDs that will be required to complete before
* this task will be eligible to start.
* @param failedDependencyAction
* Indicates what action should be taken if any of the
* dependencies for this task do not complete successfully.
* @param notifyOnCompletion
* The list of e-mail addresses of individuals that should be
* notified when this task completes.
* @param notifyOnError
* The list of e-mail addresses of individuals that should be
* notified if this task does not complete successfully.
*
* @throws TaskException If there is a problem with any of the provided
* arguments.
*/
public ExecTask(@Nullable final String taskID,
@NotNull final String commandPath,
@Nullable final String commandArguments,
@Nullable final String commandOutputFile,
@Nullable final Boolean logCommandOutput,
@Nullable final TaskState taskStateForNonZeroExitCode,
@Nullable final Date scheduledStartTime,
@Nullable final List dependencyIDs,
@Nullable final FailedDependencyAction failedDependencyAction,
@Nullable final List notifyOnCompletion,
@Nullable final List notifyOnError)
throws TaskException
{
this(taskID, commandPath, commandArguments, commandOutputFile,
logCommandOutput, taskStateForNonZeroExitCode, scheduledStartTime,
dependencyIDs, failedDependencyAction, null, notifyOnCompletion,
null, notifyOnError, null, null, null);
}
/**
* Creates a new exec task with the provided information.
*
* @param taskID
* The task ID to use for this task. If it is {@code null} then
* a UUID will be generated for use as the task ID.
* @param commandPath
* The absolute path (on the server filesystem) to the command
* that should be executed. This must not be {@code null}.
* @param commandArguments
* The complete set of arguments that should be used when
* running the command. This may be {@code null} if no arguments
* should be provided.
* @param commandOutputFile
* The path to an output file that should be used to record all
* output that the command writes to standard output or standard
* error. This may be {@code null} if the command output should
* not be recorded in a file.
* @param logCommandOutput
* Indicates whether to record the command output in the server
* error log. If this is {@code true}, then all non-blank lines
* that the command writes to standard output or standard error
* will be recorded in the server error log. if this is
* {@code false}, then the output will not be recorded in the
* server error log. If this is {@code null}, then the server
* will determine whether to log command output. Note that a
* value of {@code true} should only be used if you are certain
* that the tool will only generate text-based output, and you
* should use {@code false} if you know that the command may
* generate non-text output.
* @param taskStateForNonZeroExitCode
* The task state that should be used if the command completes
* with a nonzero exit code. This may be {@code null} to
* indicate that the server should determine the appropriate task
* state. If it is non-{@code null}, then the value must be one
* of {@link TaskState#STOPPED_BY_ERROR},
* {@link TaskState#COMPLETED_WITH_ERRORS}, or
* {@link TaskState#COMPLETED_SUCCESSFULLY}.
* @param scheduledStartTime
* The time that this task should start running.
* @param dependencyIDs
* The list of task IDs that will be required to complete before
* this task will be eligible to start.
* @param failedDependencyAction
* Indicates what action should be taken if any of the
* dependencies for this task do not complete successfully.
* @param notifyOnStart
* The list of e-mail addresses of individuals that should be
* notified when this task starts.
* @param notifyOnCompletion
* The list of e-mail addresses of individuals that should be
* notified when this task completes.
* @param notifyOnSuccess
* The list of e-mail addresses of individuals that should be
* notified if this task completes successfully.
* @param notifyOnError
* The list of e-mail addresses of individuals that should be
* notified if this task does not complete successfully.
* @param alertOnStart
* Indicates whether the server should send an alert notification
* when this task starts.
* @param alertOnSuccess
* Indicates whether the server should send an alert notification
* if this task completes successfully.
* @param alertOnError
* Indicates whether the server should send an alert notification
* if this task fails to complete successfully.
*
* @throws TaskException If there is a problem with any of the provided
* arguments.
*/
public ExecTask(@Nullable final String taskID,
@NotNull final String commandPath,
@Nullable final String commandArguments,
@Nullable final String commandOutputFile,
@Nullable final Boolean logCommandOutput,
@Nullable final TaskState taskStateForNonZeroExitCode,
@Nullable final Date scheduledStartTime,
@Nullable final List dependencyIDs,
@Nullable final FailedDependencyAction failedDependencyAction,
@Nullable final List notifyOnStart,
@Nullable final List notifyOnCompletion,
@Nullable final List notifyOnSuccess,
@Nullable final List notifyOnError,
@Nullable final Boolean alertOnStart,
@Nullable final Boolean alertOnSuccess,
@Nullable final Boolean alertOnError)
throws TaskException
{
this(taskID, commandPath, commandArguments, commandOutputFile,
logCommandOutput, taskStateForNonZeroExitCode, null,
scheduledStartTime, dependencyIDs, failedDependencyAction,
notifyOnStart, notifyOnCompletion, notifyOnSuccess, notifyOnError,
alertOnStart, alertOnSuccess, alertOnError);
}
/**
* Creates a new exec task with the provided information.
*
* @param taskID
* The task ID to use for this task. If it is {@code null} then
* a UUID will be generated for use as the task ID.
* @param commandPath
* The absolute path (on the server filesystem) to the command
* that should be executed. This must not be {@code null}.
* @param commandArguments
* The complete set of arguments that should be used when
* running the command. This may be {@code null} if no arguments
* should be provided.
* @param commandOutputFile
* The path to an output file that should be used to record all
* output that the command writes to standard output or standard
* error. This may be {@code null} if the command output should
* not be recorded in a file.
* @param logCommandOutput
* Indicates whether to record the command output in the server
* error log. If this is {@code true}, then all non-blank lines
* that the command writes to standard output or standard error
* will be recorded in the server error log. if this is
* {@code false}, then the output will not be recorded in the
* server error log. If this is {@code null}, then the server
* will determine whether to log command output. Note that a
* value of {@code true} should only be used if you are certain
* that the tool will only generate text-based output, and you
* should use {@code false} if you know that the command may
* generate non-text output.
* @param taskStateForNonZeroExitCode
* The task state that should be used if the command completes
* with a nonzero exit code. This may be {@code null} to
* indicate that the server should determine the appropriate task
* state. If it is non-{@code null}, then the value must be one
* of {@link TaskState#STOPPED_BY_ERROR},
* {@link TaskState#COMPLETED_WITH_ERRORS}, or
* {@link TaskState#COMPLETED_SUCCESSFULLY}.
* @param workingDirectory
* The path to the working directory to use when executing the
* command.
* @param scheduledStartTime
* The time that this task should start running.
* @param dependencyIDs
* The list of task IDs that will be required to complete before
* this task will be eligible to start.
* @param failedDependencyAction
* Indicates what action should be taken if any of the
* dependencies for this task do not complete successfully.
* @param notifyOnStart
* The list of e-mail addresses of individuals that should be
* notified when this task starts.
* @param notifyOnCompletion
* The list of e-mail addresses of individuals that should be
* notified when this task completes.
* @param notifyOnSuccess
* The list of e-mail addresses of individuals that should be
* notified if this task completes successfully.
* @param notifyOnError
* The list of e-mail addresses of individuals that should be
* notified if this task does not complete successfully.
* @param alertOnStart
* Indicates whether the server should send an alert notification
* when this task starts.
* @param alertOnSuccess
* Indicates whether the server should send an alert notification
* if this task completes successfully.
* @param alertOnError
* Indicates whether the server should send an alert notification
* if this task fails to complete successfully.
*
* @throws TaskException If there is a problem with any of the provided
* arguments.
*/
public ExecTask(@Nullable final String taskID,
@NotNull final String commandPath,
@Nullable final String commandArguments,
@Nullable final String commandOutputFile,
@Nullable final Boolean logCommandOutput,
@Nullable final TaskState taskStateForNonZeroExitCode,
@Nullable final String workingDirectory,
@Nullable final Date scheduledStartTime,
@Nullable final List dependencyIDs,
@Nullable final FailedDependencyAction failedDependencyAction,
@Nullable final List notifyOnStart,
@Nullable final List notifyOnCompletion,
@Nullable final List notifyOnSuccess,
@Nullable final List notifyOnError,
@Nullable final Boolean alertOnStart,
@Nullable final Boolean alertOnSuccess,
@Nullable final Boolean alertOnError)
throws TaskException
{
super(taskID, EXEC_TASK_CLASS, scheduledStartTime, dependencyIDs,
failedDependencyAction, notifyOnStart, notifyOnCompletion,
notifyOnSuccess, notifyOnError, alertOnStart, alertOnSuccess,
alertOnError);
this.commandPath = commandPath;
this.commandArguments = commandArguments;
this.commandOutputFile = commandOutputFile;
this.logCommandOutput = logCommandOutput;
this.workingDirectory = workingDirectory;
if ((commandPath == null) || commandPath.isEmpty())
{
throw new TaskException(ERR_EXEC_MISSING_PATH.get());
}
if (taskStateForNonZeroExitCode == null)
{
this.taskStateForNonZeroExitCode = null;
}
else
{
switch (taskStateForNonZeroExitCode)
{
case STOPPED_BY_ERROR:
case COMPLETED_WITH_ERRORS:
case COMPLETED_SUCCESSFULLY:
this.taskStateForNonZeroExitCode = taskStateForNonZeroExitCode.name();
break;
default:
throw new TaskException(
ERR_EXEC_INVALID_STATE_FOR_NONZERO_EXIT_CODE.get(
TaskState.STOPPED_BY_ERROR.name(),
TaskState.COMPLETED_WITH_ERRORS.name(),
TaskState.COMPLETED_SUCCESSFULLY.name()));
}
}
}
/**
* Creates a new exec task from the provided entry.
*
* @param entry The entry to use to create this exec task.
*
* @throws TaskException If the provided entry cannot be parsed as an exec
* task entry.
*/
public ExecTask(@NotNull final Entry entry)
throws TaskException
{
super(entry);
// Get the command to execute. It must be provided.
commandPath = entry.getAttributeValue(ATTR_COMMAND_PATH);
if (commandPath == null)
{
throw new TaskException(ERR_EXEC_ENTRY_MISSING_COMMAND_PATH.get(
entry.getDN(), ATTR_COMMAND_PATH));
}
commandArguments = entry.getAttributeValue(ATTR_COMMAND_ARGUMENTS);
commandOutputFile = entry.getAttributeValue(ATTR_COMMAND_OUTPUT_FILE);
logCommandOutput =
entry.getAttributeValueAsBoolean(ATTR_LOG_COMMAND_OUTPUT);
taskStateForNonZeroExitCode =
entry.getAttributeValue(ATTR_TASK_STATE_FOR_NONZERO_EXIT_CODE);
workingDirectory = entry.getAttributeValue(ATTR_WORKING_DIRECTORY);
}
/**
* Creates a new exec task from the provided set of task properties.
*
* @param properties The set of task properties and their corresponding
* values to use for the task. It must not be
* {@code null}.
*
* @throws TaskException If the provided set of properties cannot be used to
* create a valid exec task.
*/
public ExecTask(@NotNull final Map> properties)
throws TaskException
{
super(EXEC_TASK_CLASS, properties);
String path = null;
String arguments = null;
String outputFile = null;
Boolean logOutput = null;
String nonZeroExitState = null;
String workingDir = null;
for (final Map.Entry> entry :
properties.entrySet())
{
final TaskProperty p = entry.getKey();
final String attrName = StaticUtils.toLowerCase(p.getAttributeName());
final List
