diff options
Diffstat (limited to 'spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/RequestParserUtils.java')
-rw-r--r-- | spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/RequestParserUtils.java | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/RequestParserUtils.java b/spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/RequestParserUtils.java new file mode 100644 index 000000000..0fff949b1 --- /dev/null +++ b/spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/RequestParserUtils.java @@ -0,0 +1,147 @@ +package at.gv.egovernment.moa.spss.api.xmlbind; + +import java.text.ParseException; +import java.util.Date; + +import org.w3c.dom.Element; +import org.w3c.dom.NodeList; + +import at.gv.egovernment.moa.util.Base64Utils; +import at.gv.egovernment.moa.util.Constants; +import at.gv.egovernment.moa.util.DOMUtils; +import at.gv.egovernment.moa.util.DateTimeUtils; +import at.gv.egovernment.moa.util.XPathUtils; + +import at.gv.egovernment.moa.spss.MOAApplicationException; +import at.gv.egovernment.moa.spss.api.SPSSFactory; +import at.gv.egovernment.moa.spss.api.common.Content; +import at.gv.egovernment.moa.spss.api.common.MetaInfo; +import at.gv.egovernment.moa.spss.api.common.XMLDataObjectAssociation; + +/** + * Utility methods for parsing XML requests definied in the MOA XML schema. + * + * @author Patrick Peck + * @version $Id$ + */ +public class RequestParserUtils { + // + // XPath expressions for parsing parts of a request + // + private static final String MOA = Constants.MOA_PREFIX + ":"; + private static final String REFERENCE_ATTR_NAME = "Reference"; + private static final String MIME_TYPE_XPATH = MOA + "MimeType"; + private static final String DESCRIPTION_XPATH = MOA + "Description"; + private static final String XML_ASSOC_CONTENT_XPATH = MOA + "Content"; + private static final String CONTENT_XPATH = + MOA + "Base64Content | " + MOA + "XMLContent"; + private static final String ANY_OTHER_XPATH = + "*[namespace-uri() != \"" + Constants.MOA_NS_URI + "\"]"; + + /** + * Parse a <code>XMLDataObjectAssociationType</code> kind of DOM element. + * + * @param assocElem The <code>XMLDataObjectAssociationType</code> kind of + * DOM elmeent to parse. + * @return The <code>XMLDataObjectAssociation</code> API object containing + * the data from the <code>XMLDataObjectAssociationType</code> DOM element. + */ + public static XMLDataObjectAssociation parseXMLDataObjectAssociation(Element assocElem) { + SPSSFactory factory = SPSSFactory.getInstance(); + MetaInfo metaInfo = parseMetaInfo(assocElem); + Element contentElem = + (Element) XPathUtils.selectSingleNode(assocElem, XML_ASSOC_CONTENT_XPATH); + Content content = parseContent(contentElem); + + return factory.createXMLDataObjectAssociation(metaInfo, content); + } + + /** + * Parse a <code>MetaInfoType</code> kind of DOM element. + * + * @param metaInfoElem The <code>MetaInfoType</code> kind of DOM element. + * @return The <code>MetaInfo</code> API object containing the data from + * the <code>metaInfoElem</code>. + */ + public static MetaInfo parseMetaInfo(Element metaInfoElem) { + SPSSFactory factory = SPSSFactory.getInstance(); + String mimeType = + XPathUtils.getElementValue(metaInfoElem, MIME_TYPE_XPATH, null); + String description = + XPathUtils.getElementValue(metaInfoElem, DESCRIPTION_XPATH, null); + NodeList anyOther = + XPathUtils.selectNodeList(metaInfoElem, ANY_OTHER_XPATH); + + return factory.createMetaInfo(mimeType, description, anyOther); + } + + /** + * Parse a <code>ContentOptionalRefType</code> or + * <code>ContentRequiredRefType</code> kind of DOM element. + * @param contentParentElem The DOM element being the parent of the + * content element. + * @return The <code>Content</code> API object containing the data from + * the given DOM element. + */ + public static Content parseContent(Element contentParentElem) { + SPSSFactory factory = SPSSFactory.getInstance(); + String referenceURI = + contentParentElem.hasAttribute(REFERENCE_ATTR_NAME) + ? contentParentElem.getAttribute(REFERENCE_ATTR_NAME) + : null; + Element contentElem = + (Element) XPathUtils.selectSingleNode(contentParentElem, CONTENT_XPATH); + + if (contentElem == null) { + return factory.createContent(referenceURI); + } + + if ("Base64Content".equals(contentElem.getLocalName())) { + String base64String = DOMUtils.getText(contentElem); + return factory.createContent( + Base64Utils.decodeToStream(base64String, true), + referenceURI); + } else { // "XMLContent".equals(contentElem.getLocalName()) + return factory.createContent(contentElem.getChildNodes(), referenceURI); + } + } + + /** + * Get the signing time from a Verfiy(CMS|XML)SignatureRequest. + * + * @param requestElem A <code>Verify(CMS|XML)SignatureRequest</code> DOM + * element. + * @param dateTimeXPath The XPath to lookup the <code>DateTime</code> element + * within the request. + * @return Date The date and time corresponding to the <code>DateTime</code> + * element in the request. If no <code>DateTime</code> element exists in the + * request, <code>null</code> is returned. + * @throws MOAApplicationException An error occurred during a parsing the + * <code>DateTime</code> element or creating the return value. + */ + public static Date parseDateTime(Element requestElem, String dateTimeXPath) + throws MOAApplicationException { + + Element dateTimeElem; + String dateTimeText; + + // select the DateTime element + dateTimeElem = + (Element) XPathUtils.selectSingleNode(requestElem, dateTimeXPath); + + // parse a date from the element value + if (dateTimeElem != null) { + dateTimeText = DOMUtils.getText(dateTimeElem); + try { + return DateTimeUtils.parseDateTime(dateTimeText); + } catch (ParseException e) { + throw new MOAApplicationException( + "1104", + new Object[] { dateTimeText }); + } + } else { + return null; + } + } + +} |