package org.ovirt.engine.core.utils.ovf;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
import org.apache.commons.lang.StringUtils;
import org.ovirt.engine.core.common.businessentities.storage.DiskImage;
import org.ovirt.engine.core.compat.Guid;
import org.ovirt.engine.core.utils.ovf.xml.XmlDocument;
import org.ovirt.engine.core.utils.ovf.xml.XmlNode;
import org.ovirt.engine.core.utils.ovf.xml.XmlNodeList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class OvfParser {
private static final Logger log = LoggerFactory.getLogger(OvfParser.class);
private static final String utcFallbackDateFormatStr = "yyyy.MM.dd HH:mm:ss";
private static final String utcDateFormatStr = "yyyy/MM/dd HH:mm:ss";
public static final String formatStrFromDiskDescription = "EEE MMM d HH:mm:ss zzz yyyy";
private XmlDocument _document;
public OvfParser(String ovfstring) throws OvfReaderException {
try {
_document = new XmlDocument(ovfstring);
} catch (Exception e) {
log.error("Failed Parsing OVF due to {}", e.getMessage());
log.debug("Exception", e);
throw new OvfReaderException(e);
}
}
public boolean isTemplate() {
String id1 = "1";
String id2 = "2";
XmlNode node = _document.selectSingleNode("//*/Content/TemplateId");
if (!StringUtils.isBlank(node.innerText)) {
id1 = node.innerText;
}
XmlNodeList list = _document.selectNodes("//*/Content/Section");
for (XmlNode section : list) {
String value = section.attributes.get("xsi:type").getValue();
if (StringUtils.equals(value, "ovf:OperatingSystemSection_Type")) {
id2 = section.attributes.get("ovf:id").getValue();
}
}
return StringUtils.equals(id1, id2);
}
// imageFile is: [image group id]/[image id]
// 7D1FE0AA-A153-4AAF-95B3-3654A54443BE/7D1FE0AA-A153-4AAF-95B3-3654A54443BE
public static String createImageFile(DiskImage image) {
String retVal = "";
if (image.getId() != null) {
retVal += image.getId().toString();
} else {
retVal += Guid.Empty;
}
retVal += "/" + image.getImageId().toString();
return retVal;
}
public static Guid getImageGroupIdFromImageFile(String imageFile) {
if (!StringUtils.isBlank(imageFile)) {
return Guid.createGuidFromStringDefaultEmpty(imageFile.split("[/]", -1)[0]);
}
return null;
}
public static String localDateToUtcDateString(Date date) {
return getDateFormat(utcDateFormatStr).format(date);
}
private static DateFormat getDateFormat(final String format) {
final DateFormat utcDateTimeFormat = new SimpleDateFormat(format);
utcDateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
return utcDateTimeFormat;
}
/**
* Method return false if the format is not yyyy/mm/dd hh:mm:ss
*
* @return the date or null if parse failed
*/
public static Date utcDateStringToLocaDate(String str) {
if (StringUtils.isBlank(str)) {
return null;
}
try {
return getDateFormat(utcDateFormatStr).parse(str);
} catch (ParseException e1) {
try {
return getDateFormat(utcFallbackDateFormatStr).parse(str);
} catch (ParseException e) {
log.error("OVF DateTime format error: '{}', Expected: yyyy/M/dd hh:mm:ss", e.getMessage());
log.debug("Exception", e);
return null;
}
}
}
}