       function get_answer($socket) {
       $answer = ''; $s = '';
       while ( !ereg("</spooler>", $s) && !ereg("<ok[/]?>", $s) ) {
         $s = fgets($socket, 1000);

         if (strlen($s) == 0) { break; }
         $answer .= $s;
         $s = substr($answer, strlen($answer)-20);


         // chr(0) am Ende entfernen.
         if (substr($answer, -1) == chr(0)) {
           $answer = substr($answer, 0, -1);
           break;
         }
       }
       $answer = trim($answer);

       return $answer;
     }

Communication with PHP Classes

For an application that sends commands to the JobScheduler it is very usefull to have a proper error handling. Apart from that, a higher level of abstraction is useful for understanding the source code. For this reason SOS GmbH offers a class for processing the communication. The class encapsulates the socket calls and provides a method for reading XML answers of the JobScheduler.

Installation

In your web directory set up a file called: packages.Into the folder scheduler put the file sos_scheduler_command_inc.php and into the folder class put the file sos_class.inc.php.
You can find these files unter scheduler/php_xml_interface/packages package_scheduler.zip
In your application program include the class with:require_once( 'scheduler/sos_scheduler_command.inc.php');

Example

The example can be realized with these classes as follows:

Code Block

language	php
linenumbers	true

//open socket
$command = new SOS_Scheduler_Command(‘localhost’,4454, 60);
//build command
$cmd = '<add_jobs><job name="myJob" title = "my first job"> <script';
$cmd += 'language="shell">  <![CDATA[dir c:\temp  ]]>  </script> ';
$cmd += '<run_time> <period ';
$cdm += 'single_start="18:00"/></run_time></job></add_jobs>';
if (!$command->connect()) {
	echo$get_error(). __FILE__ . __LINE__ ;
	return 0;
}
//send command
$this->command->command($cmd);
if ($command->get_answer_error()) {
	echo$command->get_error() . ‘ ‘ . __FILE__ . ‘ ‘ . __LINE__ ;
}
//close socket
$command->disconnect();

Commands with xml-php Interface

One of the key tasks for the communication with JobScheduler is the creation of XML commands. To this end, you could use string functions or DOM classes.
Another possibility is to use the xml-php-interface. The interface encapsulates the construction of XML commands and the communication with the JobScheduler. In this case the classes described in Communication with PHP Classes are used.

...

Code Block

language	php
linenumbers	true

ini_set( 'include_path', 'packages' );

Example

The example with these classes is realized as follows:

Code Block

language	php
linenumbers	true

if(!defined('APP_SCHEDULER_HOST')) { define ( 'APP_SCHEDULER_HOST', 'localhost' ); }
if(!defined('APP_SCHEDULER_PORT')) {define( 'APP_SCHEDULER_PORT', '4454' ); }

//load missing classes and returns an object of the class
function &get_instance($class, $include_path='scheduler/', $extension='.inc.php') {
	if ( !class_exists($class) ) {
		include( $include_path . strtolower($class) . $extension );
	}
	$object = new $class;
	$object->host=APP_SCHEDULER_HOST;
	$object->port=APP_SCHEDULER_PORT;
	return $object;   
}
$job = &get_instance('SOS_Scheduler_Job','scheduler/');

//Setting some properties
$job->name           = "myJob";
$job->title          = "my first job ";

//Set the implementation
$job->script('shell')->script_source='dir c:\temp';

//The job has a runtime 
$job->run_time()->period()->single_start = "18:00";
$job_command = &get_instance('SOS_Scheduler_JobCommand_Launcher','scheduler/');

if (! $job_command->add_jobs($job))  {
	echo'error occurred adding job: ' . $job_command->get_error(); 
	exit; 
}

Example of Use

The following code should precede the code presented in the examples below:

Code Block

language	php
linenumbers	true

if(!defined('APP_SCHEDULER_HOST')) { define ( 'APP_SCHEDULER_HOST', 'localhost' ); }
if(!defined('APP_SCHEDULER_PORT')) {define( 'APP_SCHEDULER_PORT', '4454' ); }

//load missing classes and returns an object of the class
function &get_instance($class, $include_path='scheduler/', $extension='.inc.php') {
	if ( !class_exists($class) ) {
		include( $include_path . strtolower($class) . $extension );
	}
	$object = new $class;
	$object->host=APP_SCHEDULER_HOST;
	$object->port=APP_SCHEDULER_PORT;
	return $object;   
}

The use of the php-xml interface is explained. You can find a detailed documentation of the classes in the formats PHP and DOC under: http://www….

At the end of each example you can see the XML code that will be send to JobScheduler.

Adding a Order to a Job Chain

Code Block

language	php
firstline	15
linenumbers	true

//-------------------------------------------------------------------------  
// How to add an order to an existing jobchain
//-------------------------------------------------------------------------    

$order_launcher =
       &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');

//Create an add_order object (SOS_Scheduler_Command_Add_Order).
$order = $order_launcher->add_order('jobchain',1);

//Setting some properties of the order object
$order->id='sostest_12';
$order->replace="yes";
$order->priority="10"; 
$order->title="Testorder"; 
$order->web_service=""; 
$order->at="now+60";
$order->addParam('test','any value');

// Sending XML to the JobScheduler
if (!$order_launcher->execute($order)) {
	echo'error occurred adding order: ' .  $order_launcher->get_error();
	exit;
}

...

Generated XML

Code Block
<add_order at="now+60" id="sostest_12" job_chain="jobchain" priority="10" replace="yes" state="1" title="Testorder"> <params> <param name="test" value="any value"/> </params> </add_order>

...

Remove an Order from a Job Chain

Code Block

language	php
firstline	15
linenumbers	true

//-------------------------------------------------------------------------  
// How to add an order to an existing jobchain
//-------------------------------------------------------------------------    

$order_launcher =
       &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');

//Create an add_order object (SOS_Scheduler_Command_Add_Order).
$order = $order_launcher->add_order('jobchain',1);

//Setting some properties of the order object
$order->id='sostest_12';
$order->replace="yes";
$order->priority="10"; 
$order->title="Testorder"; 
$order->web_service=""; 
$order->at="now+60";
$order->addParam('test','any value');

// Sending XML to the JobScheduler
if (!$order_launcher->execute($order)) {
	echo'error occurred adding order: ' .  $order_launcher->get_error();
	exit;
}

...

Generated XML

Code Block
<remove_order order="sostest_13" job_chain="jobchain"/>

...

Change an Existing Order

Code Block

language	php
firstline	15
linenumbers	true

//------------------------------------------------------------------------
//How to change an existing order
//------------------------------------------------------------------------  

//starting with adding an order.
$order_launcher =
       &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');
$order = $order_launcher->add_order('jobchain',3);
$order->replace='yes';
$order->id='sostest_14';
$order->run_time()->single_start="22:00";

if (!$order_launcher->execute($order)) {
	echo'error occurred adding order: ' . $order_launcher->get_error(); exit;
}

//Now change the order.state
$order = $order_launcher->modify_order('jobchain','sostest_14');
$order->state=2;
if (!$order_launcher->execute($order)) {
	echo'error occurred modifying order: ' . $order_launcher->get_error();
	exit;
}

...

Generated XML

Code Block
<modify_order order="sostest_14" job_chain="jobchain" state="2"></modify_order>

...

Start an Order with Submit

Code Block

language	php
firstline	15
linenumbers	true

//-----------------------------------------------------------------------
// How to start an order with submit. 
// This can be useful, when you know orders jobchain, id, state and starttime.
//------------------------------------------------------------------------

$order_launcher =
       &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');

if (! $order_launcher->submit('jobchain','sostest_15',2,'now+30')) {
	echo'error occurred submitting order: ' . $order_launcher->get_error();
	exit;
}

...

Generated XML

Code Block
<add_order at="now+30" id="sostest_15" job_chain="jobchain" replace="yes" state="2"> </add_order>

...

Adding a Job

Code Block

language	php
firstline	15
linenumbers	true

//------------------------------------------------------------------------
// How to add a job
//------------------------------------------------------------------------

$job = &get_instance('SOS_Scheduler_Job','scheduler/');

//Setting some properties
$job->force_idle_timeout   = "yes";
$job->idle_timeout         = "1000";
$job->ignore_signals       = "all";
$job->java_options         = "java";
$job->min_tasks            = "2";
$job->name                 = "test_jobname3"; 
$job->order                = "no";
$job->priority             = "1" ;
$job->stop_on_error        = "no";
$job->tasks                = "4";
$job->temporary            = "no"; 
$job->timeout              = "10";
$job->title                = "my job";
$job->visible              = "yes"; 

//Defining some parameters
$job->addParam('var1','value1');
$job->addParam('var2','value2');

//Set the implementation
$job->script('javascript')->script_source='a=1;';

//The job has a runtime
$job->run_time()->period()->single_start = "10:00";
$job->run_time()->period()->single_start = "11:00";
$job->run_time()->at('2006-12-24 12:20');
$job->run_time()->at('2006-12-24 12:25');
$job->run_time()->at('2006-12-24 12:35');

/** A period for day=1 */
$p = $job->run_time()->weekdays('1')->period();
$p->single_start = '07:30';
$job_command = &get_instance('SOS_Scheduler_JobCommand_Launcher','scheduler/');

//First removing the job    
$job_command->remove($job->name);
if (! $job_command->add_jobs($job))  {
	echo'error occurred adding job: ' . $job_command->get_error();
	exit;
}

...

Generated XML

Code Block

   <job
      force_idle_timeout="yes"
      idle_timeout="1000"
      ignore_signals="all"
      java_options="java"
      min_tasks="2"
      name="test_jobname3"
      order="no"
      priority="1"
      stop_on_error="no"
      tasks="4"
      temporary="no"
      imeout="10"
      itle="my job"
      isible="yes">
    <params>
      param name="var1" value="value1"/>
      param name="var2" value="value2"/>
    </params>
    <script language="javascript">
      ![CDATA[a=1;]]></script>
    <run_time>
      period single_start="10:00"/>
      period single_start="11:00"/>
      at at="2006-12-24 12:20"/>
      at at="2006-12-24 12:25"/>
      at at="2006-12-24 12:35"/>
      weekdays>
        day day="1">
        period single_start="07:30"/>
        day>
      </weekdays>
    </run_time>
    </job>

...

Deleting a Job

Code Block

language	php
firstline	15
linenumbers	true

//------------------------------------------------------------------------       
// How to to delete a job 
//------------------------------------------------------------------------  
// First we add the job to have one, which we can remove
$job = &get_instance('SOS_Scheduler_Job','scheduler/');
$job->name         = "jobtoberemoved";
$job->title        = "my removed job";
$job->visible      = "yes"; 
//Set the implentation
$job->script('javascript')->script_source='a=1;';
$job_command = &get_instance('SOS_Scheduler_JobCommand_Launcher','scheduler/');
if (! $job_command->add_jobs($job)) {
echo'error occurred adding job: ' . $job_command->get_error(); exit;
}
//Now the job will be removed
if (! $job_command->remove($job->name)) {
	echo'error occurred removing job: ' . $job_command->get_error(); 
	exit;
}

...

Generated XML

Code Block

    <job name="jobtoberemoved" tasks="1" temporary="no"
    title="my removed
    job" visible="yes">
    <script language="javascript">
    <![CDATA[a=1;]]>
    </script>
    </job>

    <modify_job job="jobtoberemoved" cmd="remove"/>

...

Starting a Job

Code Block

language	php
firstline	15
linenumbers	true

//------------------------------------------------------------------------
//  How to Start a job
//------------------------------------------------------------------------

// First we add the job to have one, which we can start
$job = &get_instance('SOS_Scheduler_Job','scheduler/');
$job->name             = "test_jobname3"; 
$job->title            = "my job";
$job->visible          = "yes"; 
$job->script('javascript')->script_source='a=1';
$job_command = &get_instance('SOS_Scheduler_JobCommand_Launcher','scheduler/');

if (! $job_command->add_jobs($job))  {
	echo'error occurred adding job: ' . $job_command->get_error(); exit;
}

if (! $job_command->start($name='test_jobname3', $start_at="now" )) {
	echo'error occurred submitting job: ' . $job_command->get_error();
	exit;
}

...

Generated XML

Code Block
<start_job job="test_jobname3" at="now"></start_job>

...

Setting the runtime of a job

Code Block

language	php
firstline	15
linenumbers	true

//-------------------------------------------------------------------
//  How to set the runtime of a job. Some examples
//-------------------------------------------------------------------

// First we add the job to have one, which we can start
$job = &get_instance('SOS_Scheduler_Job','scheduler/');
$job->name                  = "test_jobname33"; 
$job->title                 = "test_jobname33";
$job->visible                 = "yes";   
$job->script('javascript')->script_source='a=1';
$job_command = &get_instance('SOS_Scheduler_JobCommand_Launcher','scheduler/');

if (! $job_command->add_jobs($job))  {echo'error occurred adding job: ' . $job_command->get_error(); exit; }

//Start on the 28.st at 11:00
$job->run_time()->monthdays('28')->period()->single_start='11:00';

//Adding a period 
$period = new SOS_Scheduler_Runtime_Period();
$period->begin='12:00'; $period->end='13:00';
$period->repeat='60';
$job->run_time()->date('2006-30-11')->addPeriod($period);

//starting at 11:00
$job->run_time()->at('11:00');
if (!$job_command->execute($job)) {echo'error occurred : ' . $job_command->get_error(); exit; }

...

Generated XML

Code Block

 <job name="test_jobname33"
     tasks="1"
     title="test_jobname33"
     visible="yes">
<script language="javascript"><![CDATA[a=1]]></script>

<run_time>
<at at="11:00"/>
<date date="2006-30-11">
<period begin="12:00"
        end="13:00"
        repeat="60"/>
</date>
<monthdays>
       <day day="28">
          <period single_start="11:00"/>
       </day>
</monthdays>
</run_time>
</job>

...

Setting the runtime of an order

Code Block

language	php
firstline	15
linenumbers	true

//--------------------------------------------------------------
//How to set the runtime of an order. Some examples
//--------------------------------------------------------------

//adding an order with a runtime

$order_launcher = &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');
$order = $order_launcher->add_order('jobchain',3);
$order->replace='yes';
$order->id='sostest_14';

//Start on the 28.st at 11:00
$order->run_time()->monthdays('28')->period()->single_start='12:00';

//Adding a period 
$period = new SOS_Scheduler_Runtime_Period();
$period->begin='12:00'; $period->end='13:00';
$period->repeat='60';
$order->run_time()->ultimos('22')->addPeriod($period);

//starting at 11:00 
$order->at='2008-11-01 13:00';

if (!$order_launcher->execute($order)) {echo'error occurred adding order: ' . $order_launcher->get_error(); exit; }

...

Generated XML

Code Block

  <add_order
  at="2008-11-01 13:00"
  id="sostest_14"
  job_chain="jobchain"
  replace="yes"
  state="3">
<run_time>
   <monthdays>
     <day day="28">
       <period single_start="12:00"/>
    </day></monthdays>
    <ultimos>
      <day day="22">
       <period begin="12:00" end="13:00" repeat="60"/>
      </day>
    </ultimos>
</run_time>
</add_order>

...

Working with hot folders

...

Adding a Job to a hot folder

Code Block

language	php
linenumbers	true

 // First we add the job to have one, which we can start
$job = &get_instance('SOS_Scheduler_Job','scheduler/');
$job->name                  = "test_jobname77"; 
$job->title                 = "test_jobname77";
$job->visible                 = "yes";   
$job->script('javascript')->script_source='a=1';

$modify_hot_folder_command = &get_instance('SOS_Scheduler_HotFolder_Launcher','scheduler/');

if (! $xml=$modify_hot_folder_command->store($job,"./test"))  {
	echo'error occurred adding job: ' . $modify_hot_folder_command->get_error();
	exit;
}

...

Generated XML

Code Block

<modify_hot_folder folder="./test">
   <job name="test_jobname77" tasks="1" temporary="no" title="test_jobname77" visible="yes">
     <script language="javascript"><![CDATA[a=1]]></script>
   </job>
</modify_hot_folder>

...

Adding a Lock to a hot folder

Code Block

language	php
linenumbers	true

 //--------------------------------------------------
//  How to add a lock to hot folder
//--------------------------------------------------

// First we add the lock to have one, which we can start
$lock = &get_instance('SOS_Scheduler_Lock','scheduler/');

//Setting some properties
$lock->max_non_exclusive           = 1;
$lock->name="myLock";

//Adding the lock to the hotfolder
$modify_hot_folder_command = &get_instance('SOS_Scheduler_HotFolder_Launcher','scheduler/');

if (! $xml=$modify_hot_folder_command->store($lock,"./test"))  {
	echo'error occurred adding lock: ' . $modify_hot_folder_command->get_error(); 
	exit;
}

...

Generated XML

Code Block
<modify_hot_folder folder="./test"> <lock name="myLock" max_non_exclusive="1"></lock> </modify_hot_folder>

...

Adding a Process_class to a hot folder

Code Block

language	php
linenumbers	true

//-------------------------------------------------------------------------
//  How to add a process_class to hot folder
//-------------------------------------------------------------------------
// First we add the process_class to have one, which we can start
$process_class = &get_instance('SOS_Scheduler_Process_class','scheduler/');
//Setting some properties
$process_class->max_processes           = 1;
$process_class->name=

...

Generated XML

Code Block
<modify_hot_folder folder="./test"> <process_class name="myProcess_class" max_processes="1" replace="yes"> </process_class> </modify_hot_folder>

...

Adding a Job_Chain to a hot folder

Code Block

language	php
linenumbers	true

//-------------------------------------------------------------
//  How to add a job_chain to hot folder
//-------------------------------------------------------------

$job_chain = &get_instance('SOS_Scheduler_Job_Chain','scheduler/');

//Setting some properties
$job_chain->name           = "myJob_Chain";

//The job has a file_order_sources 
$job_chain->file_order_source("/myDir","1");
$job_chain->file_order_source("/myOtherDir","2");

//The job has a file_order_sinks
$job_chain->file_order_sink("6")  ->remove="yes";
$job_chain->file_order_sink("99") ->remove="yes";
$job_chain->file_order_sink("999")->remove="yes";

//Adding some Job_chain_nodes
$job_chain->add_job("my_job1","1","2","99");
$job_chain->add_job("my_job2","2","3","99");
$job_chain->add_job("my_job3","3","4","99");
$job_chain->add_job("my_job4","4","5","999");

//or adding a node
$job_chain_node = new SOS_Scheduler_Job_Chain_Node();

//Setting some properties
$job_chain_node->state          = "5";  
$job_chain_node->error_state      = "99";    
$job_chain_node->next_state     = "6";    
$job_chain_node->on_error       = "suspend";
$job_chain_node->job              = "myJob5";

//adding the node
$job_chain->add_node($job_chain_node);

//Adding the job_chain to the hotfolder
$modify_hot_folder_command = &get_instance('SOS_Scheduler_HotFolder_Launcher','scheduler/');
if (! $xml=$modify_hot_folder_command->store($job_chain,"./test/chains"))  {
	echo'error occurred adding job chain: ' . $modify_hot_folder_command->get_error();
	exit;
}

...

Generated XML

Code Block

 <modify_hot_folder folder="./test/chains">
  <job_chain name="myJob_Chain">
    <file_order_source directory="/myDir"/>
    <file_order_source directory="/myOtherDir"/>
    <file_order_sink state="6" remove="yes"/>
    <file_order_sink state="99" remove="yes"/>
    <file_order_sink state="999" remove="yes"/>
    <job_chain_node job="my_job1" state="1" next_state="2" error_state="99"/>
    <job_chain_node job="my_job2" state="2" next_state="3" error_state="99"/>
    <job_chain_node job="my_job3" state="3" next_state="4" error_state="99"/>
    <job_chain_node job="my_job4" state="4" next_state="5" error_state="999"/>
    <job_chain_node job="myJob5" state="5" next_state="6" error_state="99"/>
    </job_chain>
</modify_hot_folder>

...

Adding an Order to a hot folder

Code Block

language	php
linenumbers	true

//-------------------------------------------------------------
// How to add an order to a hot_folder
//-------------------------------------------------------------

$order_launcher = &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');

//Create an order object (SOS_Scheduler_Command_Order).
$order = $order_launcher->order('myJob_Chain',1);

//Setting some properties of the order object
$order->id='my_Order';
$order->replace="yes";
$order->priority="10"; 
$order->title="Testorder"; 
$order->web_service=""; 
$order->at="now+60";
$order->addParam('test','any value');

//Adding the job_chain to the hotfolder
$modify_hot_folder_command = &get_instance('SOS_Scheduler_HotFolder_Launcher','scheduler/');

if (! $xml=$modify_hot_folder_command->store($order,"./test/chains"))  { 
	echo 'error occurred adding order: ' . $modify_hot_folder_command->get_error();
	exit; 
}

...

Generated XML

Code Block

<modify_hot_folder folder="./test/chains">
<order  at="now+60" id="my_Order" job_chain="myJob_Chain" priority="10" replace="yes" state="1" title="Testorder">
<params>
<param name="test" value="any value"/>
</params>
</order>
</modify_hot_folder>

...

Adding a nested job chain to a hot folder

Code Block

language	php
linenumbers	true

//-------------------------------------------------------------
// How to add an order to a hot_folder
//-------------------------------------------------------------

$order_launcher = &get_instance('SOS_Scheduler_OrderCommand_Launcher','scheduler/');

//Create an order object (SOS_Scheduler_Command_Order).
$order = $order_launcher->order('myJob_Chain',1);

//Setting some properties of the order object
$order->id='my_Order';
$order->replace="yes";
$order->priority="10"; 
$order->title="Testorder"; 
$order->web_service=""; 
$order->at="now+60";
$order->addParam('test','any value');

//Adding the job_chain to the hotfolder
$modify_hot_folder_command = &get_instance('SOS_Scheduler_HotFolder_Launcher','scheduler/');
if (! $xml=$modify_hot_folder_command->store($order,"./test/chains"))  {
	echo'error occurred adding order: ' . $modify_hot_folder_command->get_error();
	exit; 
}

...

Generated XML

Code Block

language	xml

 <modify_hot_folder>
 <job_chain name="myNestedJob_Chain">

   <job_chain_node.job_chain
      job_chain="myJob_Chain"
      state="100" next_state="200"
      error_state="1200"/>

   <job_chain_node.job_chain
      job_chain="myNext_Chain"
      state="200"
      next_state="300"
      error_state="1200"/>

   <job_chain_node.end
      state="1200"/>
   <job_chain_node.end
      state="300"/>

</job_chain>
</modify_hot_folder>

...

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Key

Table of Contents

Introduction - PHP XML Interface

Feature Status

Downloads

Instructions

How it works

JobScheduler – Program Interface

Communication

Example

Example with Telnet

Communication with PHP Classes

Installation

Example

Commands with xml-php Interface

Example

Example of Use

Adding a Order to a Job Chain

Generated XML

Remove an Order from a Job Chain

Generated XML

Change an Existing Order

Generated XML

Start an Order with Submit

Generated XML

Adding a Job

Generated XML

Deleting a Job

Starting a Job

Generated XML

Setting the runtime of a job

Generated XML

Setting the runtime of an order

Generated XML

Working with hot folders

Adding a Job to a hot folder

Adding a Lock to a hot folder

Generated XML

Adding a Process_class to a hot folder

Generated XML

Adding a Job_Chain to a hot folder

Adding an Order to a hot folder

Adding a nested job chain to a hot folder