/*
* The Kuali Financial System, a comprehensive financial management system for higher education.
*
* Copyright 2005-2014 The Kuali Foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.kuali.kfs.module.tem.batch;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.util.List;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.kuali.kfs.module.tem.TemConstants;
import org.kuali.kfs.module.tem.TemKeyConstants;
import org.kuali.kfs.module.tem.batch.businessobject.PerDiemForLoad;
import org.kuali.kfs.module.tem.batch.service.PerDiemLoadService;
import org.kuali.kfs.module.tem.batch.service.PerDiemLoadValidationService;
import org.kuali.kfs.sys.batch.XmlBatchInputFileTypeBase;
import org.kuali.kfs.sys.context.SpringContext;
import org.kuali.kfs.sys.exception.ParseException;
import org.kuali.kfs.sys.exception.XmlErrorHandler;
import org.kuali.rice.core.api.datetime.DateTimeService;
import org.springframework.core.io.UrlResource;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
public class PerDiemXmlInputFileType extends XmlBatchInputFileTypeBase {
private static Logger LOG = Logger.getLogger(PerDiemXmlInputFileType.class);
private DateTimeService dateTimeService;
private String fileNamePrefix;
/**
* @see org.kuali.kfs.sys.batch.BatchInputFileType#getFileName(java.lang.String, java.lang.Object, java.lang.String)
*/
@Override
public String getFileName(String principalName, Object parsedFileContents, String fileUserIdentifier) {
StringBuilder fileName = new StringBuilder();
fileUserIdentifier = StringUtils.deleteWhitespace(fileUserIdentifier);
fileUserIdentifier = StringUtils.remove(fileUserIdentifier, TemConstants.FILE_NAME_PART_DELIMITER);
fileName.append(this.getFileNamePrefix()).append(TemConstants.FILE_NAME_PART_DELIMITER);
fileName.append(principalName).append(TemConstants.FILE_NAME_PART_DELIMITER);
fileName.append(fileUserIdentifier).append(TemConstants.FILE_NAME_PART_DELIMITER);
fileName.append(dateTimeService.toDateTimeStringForFilename(dateTimeService.getCurrentDate()));
return fileName.toString();
}
/**
* @see org.kuali.kfs.sys.batch.BatchInputFileType#getFileTypeIdentifer()
*/
@Override
public String getFileTypeIdentifer() {
return TemConstants.PER_DIEM_XML_INPUT_FILE_TYPE_INDENTIFIER;
}
/**
* @see org.kuali.kfs.sys.batch.XmlBatchInputFileTypeBase#parse(byte[])
*/
@Override
public Object parse(byte[] fileByteContent) throws ParseException {
List<PerDiemForLoad> perDiemList = (List<PerDiemForLoad>)(super.parse(fileByteContent));
PerDiemLoadService perDiemLoadService = SpringContext.getBean(PerDiemLoadService.class);
perDiemList = perDiemLoadService.updatePerDiem(perDiemList);
return perDiemList;
}
/**
* @see org.kuali.kfs.sys.batch.BatchInputFileType#validate(java.lang.Object)
*/
@Override
public boolean validate(Object parsedFileContents) {
PerDiemLoadValidationService perDiemLoadValidationService = SpringContext.getBean(PerDiemLoadValidationService.class);
List<PerDiemForLoad> perDiemList = (List<PerDiemForLoad>)parsedFileContents;
return perDiemLoadValidationService.validate(perDiemList);
}
/**
* @see org.kuali.kfs.sys.batch.BatchInputType#getAuthorPrincipalName(java.io.File)
*/
@Override
public String getAuthorPrincipalName(File file) {
return StringUtils.substringBetween(file.getName(), this.getFileNamePrefix(), TemConstants.FILE_NAME_PART_DELIMITER);
}
/**
* @see org.kuali.kfs.sys.batch.BatchInputType#getTitleKey()
*/
@Override
public String getTitleKey() {
return TemKeyConstants.MESSAGE_BATCH_UPLOAD_TITLE_PER_DIEM_XML_FILE;
}
/**
* @see org.kuali.kfs.sys.batch.XmlBatchInputFileTypeBase#validateContentsAgainstSchema(java.lang.String, java.io.InputStream)
*/
@Override
protected void validateContentsAgainstSchema(String schemaLocation, InputStream fileContents) throws ParseException {
try {
// get schemaFile
UrlResource schemaResource = new UrlResource(schemaLocation);
// load a WXS schema, represented by a Schema instance
Source schemaSource = new StreamSource(schemaResource.getInputStream());
// create a SchemaFactory capable of understanding WXS schemas
SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = factory.newSchema(schemaSource);
// create a validator instance, which can be used to validate an instance document
Validator validator = schema.newValidator();
validator.setErrorHandler(new XmlErrorHandler());
Source source = this.transform(fileContents);
validator.validate(source);
}
catch (MalformedURLException e2) {
LOG.error("error getting schema url: " + e2.getMessage());
throw new RuntimeException("error getting schema url: " + e2.getMessage(), e2);
}
catch (SAXException e) {
LOG.error("error encountered while parsing xml " + e.getMessage());
throw new ParseException("Schema validation error occured while processing file: " + e.getMessage(), e);
}
catch (IOException e1) {
LOG.error("error occured while validating file contents: " + e1.getMessage());
throw new RuntimeException("error occurred while validating file contents: " + e1.getMessage(), e1);
}
}
protected Source transform(InputStream fileContents) {
try {
DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document document = documentBuilder.parse(fileContents);
document.getDocumentElement().setAttribute("xmlns", "http://www.kuali.org/kfs/tem/perDiem");
Source domSource = new DOMSource(document);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
StreamResult streamResult = new StreamResult(outputStream);
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
// Transform the document to the result stream
transformer.transform(domSource, streamResult);
InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
return new StreamSource(inputStream);
}
catch (TransformerConfigurationException ex) {
LOG.error("error occurred while validating file contents: " + ex.getMessage());
throw new RuntimeException("error occurred while validating file contents: " + ex.getMessage(), ex);
}
catch (TransformerException ex) {
LOG.error("error occurred while validating file contents: " + ex.getMessage());
throw new RuntimeException("error occurred while validating file contents: " + ex.getMessage(), ex);
}
catch (SAXException e) {
LOG.error("error encountered while parsing xml " + e.getMessage());
throw new ParseException("Schema validation error occured while processing file: " + e.getMessage(), e);
}
catch (IOException e1) {
LOG.error("error occured while validating file contents: " + e1.getMessage());
throw new RuntimeException("error occurred while validating file contents: " + e1.getMessage(), e1);
}
catch (ParserConfigurationException ex) {
LOG.error("error occurred while validating file contents: " + ex.getMessage());
throw new RuntimeException("error occurred while validating file contents: " + ex.getMessage(), ex);
}
}
/**
* Gets the dateTimeService attribute.
*
* @return Returns the dateTimeService.
*/
public DateTimeService getDateTimeService() {
return dateTimeService;
}
/**
* Sets the dateTimeService attribute value.
*
* @param dateTimeService The dateTimeService to set.
*/
public void setDateTimeService(DateTimeService dateTimeService) {
this.dateTimeService = dateTimeService;
}
/**
* Gets the fileNamePrefix attribute.
*
* @return Returns the fileNamePrefix.
*/
public String getFileNamePrefix() {
return fileNamePrefix;
}
/**
* Sets the fileNamePrefix attribute value.
*
* @param fileNamePrefix The fileNamePrefix to set.
*/
public void setFileNamePrefix(String fileNamePrefix) {
this.fileNamePrefix = fileNamePrefix;
}
}