public static WebMetaData parse(
XMLStreamReader reader, DTDInfo info, boolean validation, PropertyReplacer propertyReplacer)
throws XMLStreamException {
if (reader == null) throw new IllegalArgumentException("Null reader");
if (info == null) throw new IllegalArgumentException("Null info");
reader.require(START_DOCUMENT, null, null);
// Read until the first start element
while (reader.hasNext() && reader.next() != START_ELEMENT) ;
String schemaLocation = readSchemaLocation(reader);
Version version = null;
if (info.getPublicID() != null) {
version = Version.fromPublicID(info.getPublicID());
}
if (version == null && info.getSystemID() != null) {
version = Version.fromSystemID(info.getSystemID());
}
if (version == null && schemaLocation != null) {
version = Version.fromSystemID(schemaLocation);
}
if (version == null) {
// Look at the version attribute
String versionString = null;
final int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
if (attributeHasNamespace(reader, i)) {
continue;
}
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
if (attribute == Attribute.VERSION) {
versionString = reader.getAttributeValue(i);
}
}
if ("2.4".equals(versionString)) {
version = Version.SERVLET_2_4;
} else if ("2.5".equals(versionString)) {
version = Version.SERVLET_2_5;
} else if ("3.0".equals(versionString)) {
version = Version.SERVLET_3_0;
}
}
if (version == null) version = Version.SERVLET_3_0;
// throw new IllegalStateException("Cannot obtain servlet version");
WebMetaData wmd = null;
switch (version) {
case SERVLET_2_2:
wmd = new Web22MetaData();
break;
case SERVLET_2_3:
wmd = new Web23MetaData();
break;
case SERVLET_2_4:
wmd = new Web24MetaData();
break;
case SERVLET_2_5:
wmd = new Web25MetaData();
break;
case SERVLET_3_0:
wmd = new Web30MetaData();
break;
}
// Set the publicId / systemId
if (info != null) wmd.setDTD(info.getBaseURI(), info.getPublicID(), info.getSystemID());
// Set the schema location if we have one
if (schemaLocation != null) wmd.setSchemaLocation(schemaLocation);
// Handle attributes
final int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
final String value = reader.getAttributeValue(i);
if (attributeHasNamespace(reader, i)) {
continue;
}
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case ID:
{
wmd.setId(value);
break;
}
case VERSION:
{
wmd.setVersion(value);
break;
}
case METADATA_COMPLETE:
{
if (wmd instanceof Web25MetaData || wmd instanceof Web30MetaData) {
if (Boolean.TRUE.equals(Boolean.valueOf(value))) {
if (wmd instanceof Web25MetaData) {
((Web25MetaData) wmd).setMetadataComplete(true);
}
if (wmd instanceof Web30MetaData) {
((Web30MetaData) wmd).setMetadataComplete(true);
}
}
} else {
throw unexpectedAttribute(reader, i);
}
break;
}
default:
throw unexpectedAttribute(reader, i);
}
}
DescriptionGroupMetaData descriptionGroup = new DescriptionGroupMetaData();
EnvironmentRefsGroupMetaData env = new EnvironmentRefsGroupMetaData();
// Handle elements
while (reader.hasNext() && reader.nextTag() != END_ELEMENT) {
if (WebCommonMetaDataParser.parse(reader, wmd, propertyReplacer)) {
continue;
}
if (EnvironmentRefsGroupMetaDataParser.parse(reader, env, propertyReplacer)) {
if (wmd.getJndiEnvironmentRefsGroup() == null) {
wmd.setJndiEnvironmentRefsGroup(env);
}
continue;
}
if (DescriptionGroupMetaDataParser.parse(reader, descriptionGroup)) {
if (wmd.getDescriptionGroup() == null) {
wmd.setDescriptionGroup(descriptionGroup);
}
continue;
}
final Element element = Element.forName(reader.getLocalName());
switch (element) {
case ABSOLUTE_ORDERING:
if (wmd instanceof Web30MetaData) {
((Web30MetaData) wmd)
.setAbsoluteOrdering(
AbsoluteOrderingMetaDataParser.parse(reader, propertyReplacer));
} else {
throw unexpectedElement(reader);
}
break;
case MODULE_NAME:
if (wmd instanceof Web30MetaData) {
((Web30MetaData) wmd).setModuleName(getElementText(reader, propertyReplacer));
} else {
throw unexpectedElement(reader);
}
break;
case TAGLIB:
if (wmd instanceof Web22MetaData || wmd instanceof Web23MetaData) {
JspConfigMetaData jspConfig = wmd.getJspConfig();
if (jspConfig == null) {
jspConfig = new JspConfigMetaData();
wmd.setJspConfig(jspConfig);
}
List<TaglibMetaData> taglibs = jspConfig.getTaglibs();
if (taglibs == null) {
taglibs = new ArrayList<TaglibMetaData>();
jspConfig.setTaglibs(taglibs);
}
taglibs.add(TaglibMetaDataParser.parse(reader, propertyReplacer));
} else {
throw unexpectedElement(reader);
}
break;
default:
throw unexpectedElement(reader);
}
}
return wmd;
}
@Override
public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
if (!DeploymentTypeMarker.isType(DeploymentType.WAR, deploymentUnit)) {
return; // Skip non web deployments
}
final ResourceRoot deploymentRoot = deploymentUnit.getAttachment(Attachments.DEPLOYMENT_ROOT);
final VirtualFile alternateDescriptor =
deploymentRoot.getAttachment(
org.jboss.as.ee.structure.Attachments.ALTERNATE_WEB_DEPLOYMENT_DESCRIPTOR);
// Locate the descriptor
final VirtualFile webXml;
if (alternateDescriptor != null) {
webXml = alternateDescriptor;
} else {
webXml = deploymentRoot.getRoot().getChild(WEB_XML);
}
final WarMetaData warMetaData = deploymentUnit.getAttachment(WarMetaData.ATTACHMENT_KEY);
assert warMetaData != null;
if (webXml.exists()) {
InputStream is = null;
try {
is = webXml.openStream();
final XMLInputFactory inputFactory = XMLInputFactory.newInstance();
MetaDataElementParser.DTDInfo dtdInfo = new MetaDataElementParser.DTDInfo();
inputFactory.setXMLResolver(dtdInfo);
final XMLStreamReader xmlReader = inputFactory.createXMLStreamReader(is);
WebMetaData webMetaData =
WebMetaDataParser.parse(
xmlReader,
dtdInfo,
SpecDescriptorPropertyReplacement.propertyReplacer(deploymentUnit));
if (schemaValidation && webMetaData.getSchemaLocation() != null) {
XMLSchemaValidator validator = new XMLSchemaValidator(new XMLResourceResolver());
InputStream xmlInput = webXml.openStream();
try {
if (webMetaData.is23())
validator.validate(
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN", xmlInput);
else if (webMetaData.is24())
validator.validate("http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd", xmlInput);
else if (webMetaData.is25())
validator.validate("http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd", xmlInput);
else if (webMetaData.is30())
validator.validate("http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd", xmlInput);
else if (webMetaData.is31())
validator.validate("http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd", xmlInput);
else
validator.validate(
"-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN", xmlInput);
} catch (SAXException e) {
throw new DeploymentUnitProcessingException("Failed to validate " + webXml, e);
} finally {
xmlInput.close();
}
}
warMetaData.setWebMetaData(webMetaData);
} catch (XMLStreamException e) {
throw new DeploymentUnitProcessingException(
MESSAGES.failToParseXMLDescriptor(
webXml, e.getLocation().getLineNumber(), e.getLocation().getColumnNumber()));
} catch (IOException e) {
throw new DeploymentUnitProcessingException(MESSAGES.failToParseXMLDescriptor(webXml), e);
} finally {
try {
if (is != null) {
is.close();
}
} catch (IOException e) {
// Ignore
}
}
}
}
