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src/InputOutput/IHMImpl/Tools/IHMUserWSManagerClass.php 5.07 KB
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<?php

/**
 * @class IHMUserWSManagerClass
 * @brief Manager for IHM user workspace
 * @details
 */
class IHMUserWSManagerClass
{
	private static $WS_VERSION = 1;

	protected $wsInfo      = null;

	public function init()
	{
		//check user workspace
		if (IHMConfigClass::getUserName() == "" || !is_dir(IHMConfigClass::getUserPath()))
			throw new Exception('Cannot find user workspace.');

		//Load info about WS
		if (!$this->loadWSInfoFile())
			throw new Exception('Error to load workspace info file.');

		//Update WS if need
		if (!$this->update())
			throw new Exception('Error during user workspace conversion.');

		return TRUE;
	}

	public function update()
	{
		while (IHMUserWSManagerClass::$WS_VERSION > $this->wsInfo['version']) {
			$updateMethod = "updateFromVersion".$this->wsInfo['version'];
			if (method_exists($this,$updateMethod)) {
				if (!$this->{$updateMethod}()) {
					return FALSE;
				}
			}
			$this->wsInfo['version'] += 1;
			if (!$this->saveWSInfoFile()) {
				return FALSE;
			}
		}
		return TRUE;
	}

	private function loadWSInfoFile()
	{
		if (file_exists(IHMConfigClass::getUserWSInfoFilePath())) {
			$infoContent = file_get_contents(IHMConfigClass::getUserWSInfoFilePath());
			if (empty($infoContent)) {
				return FALSE;
			}
			$this->wsInfo = json_decode($infoContent, TRUE);
			if (empty($this->wsInfo)) {
				return FALSE;
			}
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			return TRUE;
		}

		//Init info file
		$this->wsInfo = array(
			"version" => 0,
		);

		return $this->saveWSInfoFile();
	}

	private function saveWSInfoFile()
	{
		if (empty($this->wsInfo)) {
			return FALSE;
		}

		$json_data = json_encode($this->wsInfo);

		if ($json_data === FALSE) {
			return FALSE;
		}


		return file_put_contents(IHMConfigClass::getUserWSInfoFilePath(),$json_data);
	}

	private function updateFromVersion0() {
		// This update split plot requests

		// Load user requests file
		$req_mgr_file_path = IHMConfigClass::getUserRequestManagerFilePath();
		if (!file_exists($req_mgr_file_path)) {
			return TRUE;
		}

		$dom = new DOMDocument();
		if (!$dom->load($req_mgr_file_path)) {
			return FALSE;
		}

		// Retrieve all plot requests and last request id
		$plot_requests = array();
		$last_id = 0;
		foreach ($dom->getElementsByTagName('request') as $requestNode) {
			$request_id = $requestNode->getAttribute("xml:id");
			$plot_requests[$request_id] = $requestNode;
			sscanf($request_id, "req_%d", $crt_id);
			if ($crt_id > $last_id) {
				$last_id = $crt_id;
			}
		}

		if (empty($plot_requests)) {
			//No plot requests
			return TRUE;
		}

		// Split requests
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		$split_plot = array();
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		foreach ($plot_requests as $id => $node) {
			$req_data_path = IHMConfigClass::getStoredRequestPath() . $id;
			if (!file_exists($req_data_path)) {
				continue;
			}
			$req_data_content = file_get_contents($req_data_path);
			if (!$req_data_content) {
				continue;
			}
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			$req_data_json = json_decode($req_data_content,TRUE);
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			if (!$req_data_json) {
				continue;
			}
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			if (array_key_exists("tabs", $req_data_json)) {
				$split_plot[$id] = array();
				$tab_index = 1;
				foreach ($req_data_json["tabs"] as $tab) {
					$new_splitted_request = array_merge(array(), $tab);
					foreach (array_keys($req_data_json) as $key) {
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						if (in_array($key, array('tabs', 'startDate', 'stopDate', 'durationDay', 'durationHour', 'durationMin', 'durationSec'))) {
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							continue;
						}
						$new_splitted_request[$key] = $req_data_json[$key];
					}
					if (count($req_data_json["tabs"]) > 1) {
						if (!empty($new_splitted_request['tab-name'])) {
							$new_splitted_request['name'] .= ('_' . $new_splitted_request['tab-name']);
						}
						else {
							$new_splitted_request['name'] .= ('_Plot' . $tab_index);
						}
					}
					foreach (array("tab-name", "last-plotted-tab", "active-tab-id", "last-tab-id", "multi-plot-linked") as $key) {
						unset($new_splitted_request[$key]);
					}
					++$last_id;
					$new_splitted_request['id'] = "req_".$last_id;
					file_put_contents(IHMConfigClass::getStoredRequestPath() . $new_splitted_request['id'], json_encode($new_splitted_request));
					$split_plot[$id][$new_splitted_request['id']] = $new_splitted_request['name'];
					++$tab_index;
				}
			}
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		}
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		if (!empty($split_plot)) {
			//Backup
			$backupPath = IHMConfigClass::getMigrationBackupPath($this->wsInfo['version']);
			copy($req_mgr_file_path, $backupPath.basename($req_mgr_file_path));
			foreach ($split_plot as $old_key => $split) {
				$req_data_path = IHMConfigClass::getStoredRequestPath() . $old_key;
				copy($req_data_path, $backupPath.basename($req_data_path));
			}
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			//Apply split in user requests file + cleanup
			foreach ($split_plot as $old_key => $split) {
				$parentNode = $plot_requests[$old_key]->parentNode;
				$parentNode->removeChild($plot_requests[$old_key]);
				unlink(IHMConfigClass::getStoredRequestPath() . $old_key);
				foreach ($split as $new_key => $new_name) {
					$new_node = $dom->createElement("request");
					$new_node->setAttribute("xml:id", $new_key);
					$new_node->setAttribute("name", $new_name);
					$parentNode->appendChild($new_node);
				}
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			}
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			$dom->save($req_mgr_file_path);
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		}
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		return TRUE;
	}
}