364 lines
12 KiB
PHP
Executable File
364 lines
12 KiB
PHP
Executable File
<?php
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class MD_Resolution
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{
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public $equScale;
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public $scaleDist;
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}
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class MD_Keywords
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{
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public $keyword;
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public $keyTyp;
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public $thesaName;
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}
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class MD_BrowseGraphic
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{
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public $bgFileName;
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public $bgFileDesc;
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public $bgFileType;
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}
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class MD_Identification
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{
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public $idCitation;
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public $idAbs;
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public $idPurp;
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public $idCredit;
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public $idStatus;
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public $idPoc;
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public $resMaint;
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public $graphOver;
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public $dsFormat;
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public $descKeys;
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public $idSpecUse;
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public $resConst;
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public $aggrInfo;
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public $spatRpType;
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public $dataScale;
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public $dataLang;
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public $dataChar;
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public $tpCat;
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public $envirDesc;
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public $dataExt;
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public $suppInfo;
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public $SerIdent;
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}
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class MD_Metadata
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{
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public $mdFileID;//string
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public $mdLang;//conditional, string
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public $mdChar; //conditional, class
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public $mdParentID;//string
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public $mdHrLv;//class array
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public $mdHrLvName;//string array
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public $mdContact;//class array
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public $mdDateSt;//class,数据创建时间
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public $mdStanName;//string
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public $mdStanVer;//string
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public $dataSetUri;//string
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public $spatRepInfo;//array association
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public $refSysInfo;//array..
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public $mdExtInfo;//array..
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public $dtaIdInfo;//array...MD_Identification
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public $contInfo; //array ..
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public $distInfo;//association
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public $dqInfo;//array ..
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public $porCatInfo;//array..
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public $mdConst;//array..
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public $appSchInfo;//array..
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public $mdMaint;//association
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}
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/**
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* 采用DOM实现，需要PHP5
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**/
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class ISO19115
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{
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public $mdFileID;
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public $mdLang;
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public $mdChar;
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public $mdDateSt;
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public $mdStanName='ISO 19115';
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public $mdStanVer='19115:2003';
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public $mdContact;
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public $uuid;
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/**
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* 数据集标题
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* 字符串
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**/
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public $resTitle;
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public $resAltTitle;
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/**
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* 数据集简介
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**/
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public $idAbs;
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public $dataSetURI;
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public $bgFileName;
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/**
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* 数据集序列信息
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* 数组
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**/
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public $datasetSeries;//array
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/**
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* 类别代码，数组
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* 注意在geonetwork中的不是代码，而是直接的类别值
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**/
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public $tpCat;
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/**
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* 时间信息，start & end
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* 注意：geonetwork中和国家元数据标准的代码不同
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* ISO 19115中好像没有看到相关信息
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**/
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public $timebegin;
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public $timeend;
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/**
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* 空间信息
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* 数组形式['w'],s,e,n
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**/
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public $geoBox;
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public $thumbnail;
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public $graph;
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public $keyword;
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private $dom;
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public $keytypecode=array(1=>'discipline','place','stratum','temporal','theme');
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function __construct()
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{
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$this->dom = new DOMDocument();
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}
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/**
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* 从文件中读取元数据
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**/
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function load($file)
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{
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$this->dom->load($file);
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$this->parse();
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}
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/**
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* 从字符串中读取元数据
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*/
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function loadXML($str)
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{
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$this->dom->loadXML($str);
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$this->parse();
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}
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/**
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* 保存元数据到文件file中
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*/
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function save($file)
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{
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return $this->dom->save($file);
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}
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/**
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* 根据xml中的node保存为xml
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**/
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function saveXML($node="")
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{
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return $this->dom->saveXML($node);
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}
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/**
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* 根据UUID从数据库中提取元数据信息，不需要进行parse()操作
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**/
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function loadUUID($uuid)
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{
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}
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function saveDB()
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{
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}
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function parse()
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{
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$this->resTitle=$this->dom->getElementsByTagName('resTitle')->item(0)->nodeValue;
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$this->idAbs=$this->dom->getElementsByTagName('idAbs')->item(0)->nodeValue;
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$this->mdFileID=$this->dom->getElementsByTagName('mdFileID')->item(0)->nodeValue;
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$this->mdDateSt=$this->dom->getElementsByTagName('mdDateSt')->item(0)->nodeValue;
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@$this->dataSetURI=$this->dom->getElementsByTagName('dataSetURI')->item(0)->nodeValue;
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//引用说明
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@$this->citation=$this->dom->getElementsByTagName('otherCitDet')->item(0)->nodeValue;
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//数据大小，以MB为单位
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@$this->filesize=$this->dom->getElementsByTagName('transSize')->item(0)->nodeValue;
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//数据格式，可以多个，但此处只用一个？
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@$this->fileformat=$this->dom->getElementsByTagName('formatName')->item(0)->nodeValue;
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//投影类型，可以多个，但只选一个
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@$this->projection=$this->dom->getElementsByTagName('identCode')->item(0)->nodeValue;
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//数据作者
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$authors=$this->dom->getElementsByTagName('citRespParty');
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foreach($authors as $author)
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{
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if($author->getElementsByTagName('rpIndName')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0)->hasAttributes() &&
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$author->getElementsByTagName('RoleCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="author")
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{
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$this->author=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
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break;
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}elseif ($author->getElementsByTagName('rpIndName')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0)->hasAttributes() &&
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$author->getElementsByTagName('RoleCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="originator" )
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{
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$this->author=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
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break;
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}elseif ($author->getElementsByTagName('rpIndName')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0)->hasAttributes() &&
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$author->getElementsByTagName('RoleCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="owner" )
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{
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$this->author=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
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break;
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}elseif ($author->getElementsByTagName('rpIndName')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0)->hasAttributes() &&
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$author->getElementsByTagName('RoleCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="processor" )
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{
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$this->author=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
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break;
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}elseif ($author->getElementsByTagName('rpIndName')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0)->hasAttributes() &&
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$author->getElementsByTagName('RoleCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="publisher" )
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{
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$this->author=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
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break;
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}elseif ($author->getElementsByTagName('rpIndName')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0) &&
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$author->getElementsByTagName('RoleCd')->item(0)->hasAttributes() &&
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$author->getElementsByTagName('RoleCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="resourceProvider" )
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{
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$this->author=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
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break;
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}
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}
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//数据类型，在线或离线
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$this->datatype=0;
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$onlinesrc=$this->dom->getElementsByTagName('onLineSrc');
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foreach($onlinesrc as $k=>$src)
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{
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if ($src->getElementsByTagName('OnFunctCd')->item(0)
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&& $src->getElementsByTagName('OnFunctCd')->item(0)->hasAttributes()
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&& $src->getElementsByTagName('OnFunctCd')->item(0)->attributes->getNamedItem('value')->nodeValue=="offlineAccess")
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$this->datatype=1;
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else {
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//在线资源
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$this->onlineresource[$k]['linkage']=$src->getElementsByTagName('linkage')->item(0)->nodeValue;
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if ($src->getElementsByTagName('protocol')->item(0)) $this->onlineresource[$k]['protocol']=$src->getElementsByTagName('protocol')->item(0)->nodeValue;
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if ($src->getElementsByTagName('orName')->item(0)) $this->onlineresource[$k]['name']=$src->getElementsByTagName('orName')->item(0)->nodeValue;
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$this->onlineresource[$k]['description']=$src->getElementsByTagName('orDesc')->item(0)->nodeValue;
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}
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}
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$cats=$this->dom->getElementsByTagName('tpCat');
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foreach($cats as $cat)
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{
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if ($cat->getElementsByTagName('TopicCatCd')->item(0)->hasAttributes())
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$this->tpCat[]=$cat->getElementsByTagName('TopicCatCd')->item(0)->attributes->getNamedItem('value')->nodeValue;
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}
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@$this->bgFileName=$this->dom->getElementsByTagName('bgFileName')->item(0)->nodeValue;
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$keywords=$this->dom->getElementsByTagName('descKeys');//Keywords? which one?
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foreach($keywords as $keys)
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{
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if ($keys->getElementsByTagName('KeyTypCd')->item(0) && $keys->getElementsByTagName('KeyTypCd')->item(0)->hasAttributes())
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$k=$keys->getElementsByTagName('KeyTypCd')->item(0)->attributes->getNamedItem('value')->nodeValue;
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if (is_numeric($k))
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$kt=$this->keytypecode[(int)$k];
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else
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$kt=$k;
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//如果没有找到类别，则默认为主题关键词
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if (!$kt) $kt=$this->keytypecode[5];
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$ks=$keys->getElementsByTagName('keyword');
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foreach($ks as $key)
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{
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//处理特殊情况:多关键词输入在一起，用一些符号来分割，如分号等。
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$pos=strpos($key->nodeValue,';');
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if ($pos===false)
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$this->keyword[$kt][]=$key->nodeValue;
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else {
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$str=explode(';',$key->nodeValue);
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foreach($str as $s){
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$this->keyword[$kt][]=$s;
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}
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}
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}
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}
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//in ISO 19115 draft.
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$ds=$this->dom->getElementsByTagName('DatasetSeries');
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foreach($ds as $k=>$dataset)
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{
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$this->datasetSeries[$k]['seriesName']=$dataset->getElementsByTagName('seriesName')->item(0)->nodeValue;
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$this->datasetSeries[$k]['issId']=$dataset->getElementsByTagName('issId')->item(0)->nodeValue;
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$this->datasetSeries[$k]['artPage']=$dataset->getElementsByTagName('artPage')->item(0)->nodeValue;
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}
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//unsure which one.
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$ds=$this->dom->getElementsByTagName('Series');
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foreach($ds as $k=>$dataset)
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{
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$this->datasetSeries[$k]['seriesName']=$dataset->getElementsByTagName('Name')->item(0)->nodeValue;
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$this->datasetSeries[$k]['issId']=$dataset->getElementsByTagName('issId')->item(0)->nodeValue;
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$this->datasetSeries[$k]['artPage']=$dataset->getElementsByTagName('artPage')->item(0)->nodeValue;
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}
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//可能只适用于ESRI ARCCATELOG产生的元数据
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$extent=$this->dom->getElementsByTagName('geoBox');
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foreach($extent as $geo)
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{
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$this->geoBox['w']=$geo->getElementsByTagName('westBL')->item(0)->nodeValue;
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$this->geoBox['s']=$geo->getElementsByTagName('southBL')->item(0)->nodeValue;
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$this->geoBox['e']=$geo->getElementsByTagName('eastBL')->item(0)->nodeValue;
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$this->geoBox['n']=$geo->getElementsByTagName('northBL')->item(0)->nodeValue;
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}
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//提取ESRI格式中的UUID
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if (empty($this->uuid))
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{
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@$this->uuid=$this->dom->getElementsByTagName('MetaID')->item(0)->nodeValue;
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//剔除前后大括号
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$this->uuid=trim($this->uuid,'{');
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$this->uuid=trim($this->uuid,'}');
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}
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//根据mdFileID来判断uuid
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//如果mdFileID为uuid的组织形式，则进行提取
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if (strlen($this->mdFileID)==36 && empty($this->uuid))
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$this->uuid=$this->mdFileID;
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//仍然没有UUID信息，则创建一个
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if (empty($this->uuid))
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{
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$this->uuid=new uuid();
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$this->uuid=$this->uuid->toString();
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//反馈回XML文件
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$mdfile=$this->dom->getElementsByTagName('mdFileID');
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if ($mdfile->length>0) {
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$this->dom->getElementsByTagName('mdFileID')->item(0)->nodeValue=$this->uuid;
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} else {
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$mdfile=$this->dom->createElement('mdFileID', $this->uuid);
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$this->dom->getElementsByTagName('Metadata')->item(0)->appendChild($mdfile);
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}
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}
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//提取时间信息
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$tm_period=$this->dom->getElementsByTagName('TM_Period');
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foreach($tm_period as $period)
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{
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$this->timebegin=$period->getElementsByTagName('begin')->item(0)->nodeValue;
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$this->timeend=$period->getElementsByTagName('end')->item(0)->nodeValue;
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}
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//Todo:处理缩略图，限制为一个。
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//$thumb=$this->dom->getElementsByTagName('Thumbnail');
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$xpath = new DOMXPath($this->dom);
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$query = '//metadata/Binary/Thumbnail/Data';//should be Metadata
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$entries = $xpath->query($query);
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if ($entries->length>0)
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$this->thumbnail=$entries->item(0)->nodeValue;
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else {
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$query='//Metadata/Binary/Thumbnail/Data';
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$entries=$xpath->query($query);
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@$this->thumbnail=$entries->item(0)->nodeValue;
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}
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//如果是从GEONETWORK获取，判断是否已有缩略图，获取最小的缩略图
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$graphs=$this->dom->getElementsByTagName('graphOver');
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foreach ($graphs as $g)
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{
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if ($g->getElementsByTagName('bgFileDesc')->item(0)->nodeValue=='thumbnail') {
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$this->graph['filename']=$g->getElementsByTagName('bgFileName')->item(0)->nodeValue;
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$this->graph['filedesc']='thumbnail';
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$this->graph['filetype']=$g->getElementsByTagName('bgFileType')->item(0)->nodeValue;
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}
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}
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}
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}
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?>
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