001/*
002 * Copyright 2011 The Kuali Foundation.
003 * 
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * 
008 * http://www.opensource.org/licenses/ecl2.php
009 * 
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.ole.select.service.impl;
017
018import org.apache.log4j.Logger;
019import org.kuali.ole.select.CitationParser;
020import org.kuali.ole.select.businessobject.BibInfoBean;
021import org.w3c.dom.Document;
022import org.w3c.dom.NodeList;
023
024import javax.xml.parsers.DocumentBuilder;
025import javax.xml.parsers.DocumentBuilderFactory;
026import javax.xml.xpath.XPath;
027import javax.xml.xpath.XPathConstants;
028import javax.xml.xpath.XPathExpression;
029import javax.xml.xpath.XPathFactory;
030import java.io.ByteArrayInputStream;
031import java.util.ArrayList;
032
033public class BuildCitationBibInfoBean {
034
035
036    private Logger LOG = org.apache.log4j.Logger.getLogger(BuildCitationBibInfoBean.class);
037    private DocumentBuilderFactory domFactory;
038    private DocumentBuilder builder;
039    private Document doc;
040    private String responseXmlString;
041    private CitationParser ciatationParser;
042    private BibInfoBean bibInfoBean;
043    private ArrayList<String> authorList;
044    private String citation;
045
046
047    public BibInfoBean getBean(String citationString, BibInfoBean bibInfoBean) throws Exception {
048        this.bibInfoBean = bibInfoBean;
049        if (null != citationString && !citationString.equals("")) {
050            initiateDocument();
051            citationResposeXML(citationString);
052            iterateXML();
053        }
054        return this.bibInfoBean;
055    }
056
057    private void initiateDocument() throws Exception {
058        domFactory = DocumentBuilderFactory.newInstance();
059        builder = domFactory.newDocumentBuilder();
060    }
061
062    private void citationResposeXML(String citationString) throws Exception {
063        ciatationParser = getCiatationParser();
064        citation = citationString;
065        String citationParamerter = "citation=";
066        String citationStringToParse = citationParamerter + citationString;
067        responseXmlString = ciatationParser.parse(citationStringToParse);
068    }
069
070    private void iterateXML() throws Exception {
071        if (responseXmlString != null) {
072            byte b[] = responseXmlString.getBytes();
073            ByteArrayInputStream input = new ByteArrayInputStream(b);
074            Document doc = builder.parse(input);
075            XPath xpath = XPathFactory.newInstance().newXPath();
076            XPathExpression expr = xpath.compile("//journal/*/text()");
077            XPathExpression expr1 = xpath.compile("//journal/*");
078
079            Object result = expr.evaluate(doc, XPathConstants.NODESET);
080            Object result1 = expr1.evaluate(doc, XPathConstants.NODESET);
081            NodeList nodes = (NodeList) result;
082            NodeList nodes1 = (NodeList) result1;
083
084            authorList = new ArrayList();
085            if (nodes.getLength() > 0) {
086                //bibInfoBean = new BibInfoBean();
087                for (int i = 0; i < nodes.getLength(); i++) {
088                    String nodeName = nodes1.item(i).getNodeName();
089                    String nodeValue = nodes.item(i).getNodeValue();
090                    convertToBean(nodeName, nodeValue);
091                }
092            } else {
093                String nodeName = "rft:atitle";
094                String nodeValue = citation;
095                convertToBean(nodeName, nodeValue);
096                //throw new Exception("The Citation value is incorrect.");
097            }
098        } else {
099            String nodeName = "rft:atitle";
100            String nodeValue = citation;
101            convertToBean(nodeName, nodeValue);
102        }
103    }
104
105    private void convertToBean(String nodeName, String nodeValue) throws Exception {
106        if (nodeName.equalsIgnoreCase("rft:atitle")) {
107            //bibInfoBean.setMainTitle(nodeValue);
108            bibInfoBean.setTitle(nodeValue);
109        } else if (nodeName.equalsIgnoreCase("rft:stitle")) {
110            bibInfoBean.setSubTitle(nodeValue);
111        } else if (nodeName.equalsIgnoreCase("rft:au")) {
112            authorList.add(nodeValue);
113            //bibInfoBean.setAuthors(authorList);
114            bibInfoBean.setAuthor(authorList.get(0));
115        } else if (nodeName.equalsIgnoreCase("rft:spage")) {
116            bibInfoBean.setStartPage(new Long(nodeValue));
117        } else if (nodeName.equalsIgnoreCase("rft:epage")) {
118            bibInfoBean.setEndPage(new Long(nodeValue));
119        } else if (nodeName.equalsIgnoreCase("rft:genre")) {
120            bibInfoBean.setCategory(nodeValue);
121        } else if (nodeName.equalsIgnoreCase("rft:date")) {
122            bibInfoBean.setYearOfPublication(nodeValue);
123        }
124    }
125
126    public CitationParser getCiatationParser() {
127        if (null == ciatationParser) {
128            ciatationParser = new CitationParser();
129        }
130        return ciatationParser;
131    }
132
133
134    public void setCiatationParser(CitationParser ciatationParser) {
135        this.ciatationParser = ciatationParser;
136    }
137
138
139}