Mobi_Mtld_DA_TreeOptimizer Class Reference

Static Public Member Functions
static	getTreeFromFile ($path_to_json, $user_agent, $cache_dir=null)
static	getShardId ($user_agent)
static	populateCache ($path_to_json, $cache_dir=null, $force=false)
static	clearCache ($cache_dir=null)

Public Attributes
const	SHARD_PREFIX = 'json.'

Static Public Attributes
static	$use_subtree_optimization = true
static	$subtree_optimization

Detailed Description

This class optimizes loading of the main JSON tree.

Optimization 1: we split main JSON tree based on the first character in the User-Agent string. It creates several smaller json files which are saved in the system temp directory.

There might be more optimizations coming in the future releases

Author

dotMobi

Member Function Documentation

static Mobi_Mtld_DA_TreeOptimizer::getTreeFromFile (   $path_to_json,   $user_agent,   $cache_dir = null  )

static

Returns optimized tree from a JSON file Use an absolute path name to be sure of success if the current working directory is not clear.

Parameters

string	$path_to_json	The location of the file to read in.
string	$user_agent	string from the device's User-Agent header
string	$cache_dir	uses sys_get_temp_dir() by default

Returns

array tree

Member Data Documentation

Mobi_Mtld_DA_TreeOptimizer::$subtree_optimization

static

Initial value:

 array (
                77 => array(
                        'iphone' => 'Mozilla/5.0 (i',
                        'linux' => 'Mozilla/5.0 (Linux',
                )
        )

Do NOT add any new paths to the list unless you are 110% aware how the subtree optimization works!

Mobi_Mtld_DA_TreeOptimizer::$use_subtree_optimization = true

static

When changing from true to false and vice versa be sure you clear your Mobi_Mtld_DA_TreeOptimizer cache directory.

Linux: /tmp/Mobi_Mtld_DA_TreeOptimizer

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The documentation for this class was generated from the following file:

• src/Mobi/Mtld/DA/TreeOptimizer.php