waue/2011/1202: png_out.php

<?php

$style="";
$date="";
$hour="";
if(isset($_GET['style'])){
  $style = trim($_GET['style']);
//  echo $style;
}
if(isset($_GET['date'])){
  $date = trim($_GET['date']);
//  echo $date;
}
if(isset($_GET['hour'])){
  $hour = trim($_GET['hour']);
//  echo $hour;
}

$key_space = 'png';
$column_family = 'png';
$column_family_date = 'date';

require_once 'Cassandra.php';


// list of seed servers to randomly connect to
// all the parameters are optional and default to given values
$servers = array(
  array(
    'host' => '127.0.0.1',
    'port' => 9160,
    'use-framed-transport' => true,
    'send-timeout-ms' => 1000,
    'receive-timeout-ms' => 1000
  )
);

$cassandra = Cassandra::createInstance($servers);
$cassandra->useKeyspace($key_space);
$cassandra->setMaxCallRetries(5);

$id=$date.$hour;
if ( $id == ""){
  echo "nothing! <br>";
  echo "ex:png_out.php?date=20110817&hour=02";
}else{
  $target = $cassandra->cf($column_family)->get($id);
  if ($target == null){
    echo "no data";
  }else{
    header('Content-Type: image/png');
    echo $target["content"];
    /* 
    // show all , maybe work but exceed 30 secs.
    $target = $cassandra->cf($column_family)->getKeyRange();
    echo 'Schema: <pre>'.print_r($target->getAll(), true).'</pre><hr/>';
    */
  }
}

?>