RdfStore.js
资源名称:oa.rar [点击查看]
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:6k
源码类别:
OA系统
开发平台:
Java
- /*
- Copyright (c) 2004-2006, The Dojo Foundation
- All Rights Reserved.
- Licensed under the Academic Free License version 2.1 or above OR the
- modified BSD license. For more information on Dojo licensing, see:
- http://dojotoolkit.org/community/licensing.shtml
- */
- dojo.provide("dojo.data.RdfStore");
- dojo.provide("dojo.data.RhizomeStore");
- dojo.require("dojo.lang.declare");
- dojo.require("dojo.data.core.RemoteStore");
- dojo.require("dojo.experimental");
- dojo.data.RdfDatatypeSerializer = function (type, convertFunc, uri) {
- this.type = type;
- this._converter = convertFunc;
- this.uri = uri;
- this.serialize = function (value) {
- return this._converter.call(value, value);
- };
- };
- dojo.declare("dojo.data.RdfStore", dojo.data.core.RemoteStore, {_datatypeMap:{literal:function (value) {
- var literal = value.value;
- if (value["xml:lang"]) {
- literal.lang = value["xml:lang"];
- }
- return literal;
- }, uri:function (value) {
- return {id:value.value};
- }, bnode:function (value) {
- return {id:"_:" + value.value};
- }, "http://www.w3.org/2001/XMLSchema#int":function (value) {
- return parseInt(value.value);
- }, "http://www.w3.org/2001/XMLSchema#integer":function (value) {
- return parseInt(value.value);
- }, "http://www.w3.org/2001/XMLSchema#long":function (value) {
- return parseInt(value.value);
- }, "http://www.w3.org/2001/XMLSchema#float":function (value) {
- return parseFloat(value.value);
- }, "http://www.w3.org/2001/XMLSchema#double":function (value) {
- return parseFloat(value.value);
- }, "http://www.w3.org/2001/XMLSchema#boolean":function (value) {
- return !value || value == "false" || value == "0" ? false : true;
- }}, _datatypeSerializers:[new dojo.data.RdfDatatypeSerializer(Number, Number.toString, "http://www.w3.org/2001/XMLSchema#float"), new dojo.data.RdfDatatypeSerializer(Boolean, Boolean.toString, "http://www.w3.org/2001/XMLSchema#boolean")], _findDatatypeSerializer:function (value) {
- var length = this._datatypeSerializers.length;
- for (var i = 0; i < length; i++) {
- var datatype = this._datatypeSerializers[i];
- if (value instanceof datatype.type) {
- return datatype;
- }
- }
- }, _toRDFValue:function (value) {
- var rdfvalue = {};
- if (value.id) {
- if (value.id.slice(0, 2) == "_:") {
- rdfvalue.type = "bnode";
- rdfvalue.value = value.id.substring(2);
- } else {
- rdfvalue.type = "uri";
- rdfvalue.value = value.id;
- }
- } else {
- if (typeof value == "string" || value instanceof String) {
- rdfvalue.type = "literal";
- rdfvalue.value = value;
- if (value.lang) {
- rdfvalue["xml:lang"] = value.lang;
- }
- } else {
- if (typeof value == "number") {
- value = new Number(value);
- } else {
- if (typeof value == "boolean") {
- value = new Boolean(value);
- }
- }
- var datatype = this._findDatatypeSerializer(value);
- if (datatype) {
- rdfvalue = {"type":"typed-literal", "datatype":datatype.uri, "value":value.toString()};
- } else {
- rdfvalue = {"type":"literal", "value":value.toString()};
- }
- }
- }
- return rdfvalue;
- }, _setupSaveRequest:function (saveKeywordArgs, requestKw) {
- var rdfResult = {"head":{"vars":["s", "p", "o"]}, "results":{"bindings":[]}};
- var resources = [];
- for (var key in this._deleted) {
- resources.push(key);
- }
- rdfResult.results.deleted = resources;
- for (key in this._changed) {
- var subject = this._toRDFValue(this.getIdentity(key));
- var attributes = this._changed[key];
- for (var attr in attributes) {
- var predicate = {type:"uri", value:attr};
- var values = attributes[attr];
- if (!values.length) {
- continue;
- }
- var rdfvalues = [];
- for (var i = 0; i < values.length; i++) {
- var rdfvalue = this._toRDFValue(values[i]);
- rdfResult.results.bindings.push({s:subject, p:predicate, o:rdfvalue});
- }
- }
- }
- var oldRegistry = dojo.json.jsonRegistry;
- dojo.json.jsonRegistry = this._jsonRegistry;
- var jsonString = dojo.json.serialize(rdfResult);
- dojo.json.jsonRegistry = oldRegistry;
- requestKw.postContent = jsonString;
- }, _resultToQueryMetadata:function (json) {
- return json.head;
- }, _resultToQueryData:function (json) {
- var items = {};
- var stmts = json.results.bindings;
- for (var i = 0; i < stmts.length; i++) {
- var stmt = stmts[i];
- var subject = stmt.s.value;
- if (stmt.s.type == "bnode") {
- subject = "_:" + subject;
- }
- var attributes = data[subject];
- if (!attributes) {
- attributes = {};
- data[stmt.s] = attributes;
- }
- var attr = attributes[stmt.p.value];
- if (!attr) {
- attributes[stmt.p.value] = [stmt.o];
- } else {
- attr.push(stmt.o);
- }
- }
- return items;
- }});
- dojo.declare("dojo.data.RhizomeStore", dojo.data.RdfStore, {initializer:function (kwArgs) {
- this._serverQueryUrl = kwArgs.baseUrl + "search?view=json&searchType=RxPath&search=";
- this._serverSaveUrl = kwArgs.baseUrl + "save-metadata";
- }, _resultToQueryMetadata:function (json) {
- return json;
- }, _resultToQueryData:function (json) {
- return json;
- }, _setupSaveRequest:function (saveKeywordArgs, requestKw) {
- requestKw.url = this._serverSaveUrl;
- requestKw.method = "post";
- requestKw.mimetype = "text/plain";
- var resources = [];
- for (var key in this._deleted) {
- resources.push(key);
- }
- var changes = {};
- for (key in this._changed) {
- if (!this._added[key]) {
- resources.push(key);
- }
- var attributes = this._changed[key];
- var rdfattributes = {};
- for (var attr in attributes) {
- var values = attributes[attr];
- if (!values.length) {
- continue;
- }
- var rdfvalues = [];
- for (var i = 0; i < values.length; i++) {
- var rdfvalue = this._toRDFValue(values[i]);
- rdfvalues.push(rdfvalue);
- }
- rdfattributes[attr] = rdfvalues;
- }
- changes[key] = rdfattributes;
- }
- var oldRegistry = dojo.json.jsonRegistry;
- dojo.json.jsonRegistry = this._jsonRegistry;
- var jsonString = dojo.json.serialize(changes);
- dojo.json.jsonRegistry = oldRegistry;
- requestKw.content = {rdfFormat:"json", resource:resources, metadata:jsonString};
- }});