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// Portions Copyright [2016-2017] [Payara Foundation and/or its affiliates]
package org.glassfish.weld.connector;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.ServerTags;
import com.sun.enterprise.deployment.xml.RuntimeTagNames;
import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.decorator.Decorator;
import javax.ejb.MessageDriven;
import javax.ejb.Stateful;
import javax.ejb.Stateless;
import javax.enterprise.context.*;
import javax.enterprise.inject.Model;
import javax.enterprise.inject.Stereotype;
import javax.inject.Scope;
import javax.inject.Singleton;
import javax.interceptor.Interceptor;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.classmodel.reflect.AnnotationModel;
import org.glassfish.hk2.classmodel.reflect.AnnotationType;
import org.glassfish.hk2.classmodel.reflect.Type;
import org.glassfish.hk2.classmodel.reflect.Types;
import org.glassfish.internal.api.Globals;
import org.glassfish.internal.deployment.ExtendedDeploymentContext;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class WeldUtils {
public static final char SEPARATOR_CHAR = '/';
public static final String WEB_INF = "WEB-INF";
public static final String WEB_INF_CLASSES = WEB_INF + SEPARATOR_CHAR + "classes";
public static final String WEB_INF_LIB = WEB_INF + SEPARATOR_CHAR + "lib";
public static final String BEANS_XML_FILENAME = "beans.xml";
public static final String WEB_INF_BEANS_XML = WEB_INF + SEPARATOR_CHAR + BEANS_XML_FILENAME;
public static final String META_INF_BEANS_XML = "META-INF" + SEPARATOR_CHAR + BEANS_XML_FILENAME;
public static final String WEB_INF_CLASSES_META_INF_BEANS_XML = WEB_INF_CLASSES + SEPARATOR_CHAR + META_INF_BEANS_XML;
private static final String SERVICES_DIR = "services";
// We don't want this connector module to depend on CDI API, as connector can be present in a distribution
// which does not have CDI implementation. So, we use the class name as a string.
private static final String SERVICES_CLASSNAME = "javax.enterprise.inject.spi.Extension";
public static final String META_INF_SERVICES_EXTENSION =
"META-INF" + SEPARATOR_CHAR + SERVICES_DIR + SEPARATOR_CHAR + SERVICES_CLASSNAME;
public static final String CLASS_SUFFIX = ".class";
public static final String JAR_SUFFIX = ".jar";
public static final String RAR_SUFFIX = ".rar";
public static final String EXPANDED_RAR_SUFFIX = "_rar";
public static final String EXPANDED_JAR_SUFFIX = "_jar";
public static enum BDAType { WAR, JAR, RAR, UNKNOWN };
protected static final List cdiScopeAnnotations;
static {
cdiScopeAnnotations = new ArrayList();
cdiScopeAnnotations.add(Scope.class.getName());
cdiScopeAnnotations.add(NormalScope.class.getName());
cdiScopeAnnotations.add("javax.faces.view.ViewScoped");
cdiScopeAnnotations.add("javax.faces.flow.FlowScoped");
cdiScopeAnnotations.add(ConversationScoped.class.getName());
cdiScopeAnnotations.add(ApplicationScoped.class.getName());
cdiScopeAnnotations.add(SessionScoped.class.getName());
cdiScopeAnnotations.add(RequestScoped.class.getName());
cdiScopeAnnotations.add(Dependent.class.getName());
cdiScopeAnnotations.add(Singleton.class.getName());
cdiScopeAnnotations.add(Model.class.getName());
}
protected static final List cdiEnablingAnnotations;
static {
cdiEnablingAnnotations = new ArrayList();
// CDI scopes
cdiEnablingAnnotations.addAll(cdiScopeAnnotations);
// 1.2 updates
cdiEnablingAnnotations.add(Decorator.class.getName());
cdiEnablingAnnotations.add(Interceptor.class.getName());
cdiEnablingAnnotations.add(Stereotype.class.getName());
// EJB annotations
cdiEnablingAnnotations.add(MessageDriven.class.getName());
cdiEnablingAnnotations.add(Stateful.class.getName());
cdiEnablingAnnotations.add(Stateless.class.getName());
cdiEnablingAnnotations.add(javax.ejb.Singleton.class.getName());
}
protected static final List excludedAnnotationTypes = new ArrayList();
static {
// These are excluded because they are not scope annotations, and they cause the recursive
// analysis of parent annotations to continue infinitely because they reference each other,
// and in some cases, they reference themselves.
excludedAnnotationTypes.add(Documented.class.getName());
excludedAnnotationTypes.add(Retention.class.getName());
excludedAnnotationTypes.add(Target.class.getName());
}
/**
* Determine whether the specified archive is an implicit bean deployment archive.
*
* @param context The deployment context
* @param archive The archive in question
*
* @return true, if it is an implicit bean deployment archive; otherwise, false.
*/
public static boolean isImplicitBeanArchive(DeploymentContext context, ReadableArchive archive)
throws IOException {
boolean result = false;
// Archives with extensions are not candidates for implicit bean discovery
if (!archive.exists(META_INF_SERVICES_EXTENSION)) {
result = isImplicitBeanArchive(context, archive.getURI());
}
return result;
}
/**
* Determine whether the specified archive is an implicit bean deployment archive.
*
* @param context The deployment context
* @param archivePath The URI of the archive
*
* @return true, if it is an implicit bean deployment archive; otherwise, false.
*/
public static boolean isImplicitBeanArchive(DeploymentContext context, URI archivePath) {
return (isImplicitBeanDiscoveryEnabled(context) && hasCDIEnablingAnnotations(context, archivePath));
}
/**
* Determine whether there are any beans annotated with annotations that should enable CDI
* processing even in the absence of a beans.xml descriptor.
*
* @param context The DeploymentContext
* @param path The path to check for annotated beans
*
* @return true, if there is at least one bean annotated with a qualified annotation in the specified path
*/
public static boolean hasCDIEnablingAnnotations(DeploymentContext context, URI path) {
Set paths = new HashSet();
paths.add(path);
return hasCDIEnablingAnnotations(context, paths);
}
/**
* Determine whether there are any beans annotated with annotations that should enable CDI
* processing even in the absence of a beans.xml descriptor.
*
* @param context The DeploymentContext
* @param paths The paths to check for annotated beans
*
* @return true, if there is at least one bean annotated with a qualified annotation in the specified paths
*/
public static boolean hasCDIEnablingAnnotations(DeploymentContext context, Collection paths) {
List result = new ArrayList();
Types types = getTypes(context);
if (types != null) {
Iterator typesIter = types.getAllTypes().iterator();
while (typesIter.hasNext()) {
Type type = typesIter.next();
if (!(type instanceof AnnotationType)) {
Iterator annotations = type.getAnnotations().iterator();
while (annotations.hasNext()) {
AnnotationModel am = annotations.next();
AnnotationType at = am.getType();
if (isCDIEnablingAnnotation(at) && type.wasDefinedIn(paths)) {
if (!result.contains(at.getName())) {
result.add(at.getName());
}
}
}
}
}
}
return !(result.isEmpty());
}
/**
* Get the names of any annotation types that are applied to beans, which should enable CDI
* processing even in the absence of a beans.xml descriptor.
*
* @param context The DeploymentContext
*
* @return An array of annotation type names; The array could be empty if none are found.
*/
public static String[] getCDIEnablingAnnotations(DeploymentContext context) {
List result = new ArrayList();
Types types = getTypes(context);
if (types != null) {
Iterator typesIter = types.getAllTypes().iterator();
while (typesIter.hasNext()) {
Type type = typesIter.next();
if (!(type instanceof AnnotationType)) {
Iterator annotations = type.getAnnotations().iterator();
while (annotations.hasNext()) {
AnnotationModel am = annotations.next();
AnnotationType at = am.getType();
if (isCDIEnablingAnnotation(at)) {
if (!result.contains(at.getName())) {
result.add(at.getName());
}
}
}
}
}
}
return result.toArray(new String[result.size()]);
}
/**
* Get the names of any classes that are annotated with bean-defining annotations, which should
* enable CDI processing even in the absence of a beans.xml descriptor.
*
* @param context The DeploymentContext
*
* @return A collection of class names; The collection could be empty if none are found.
*/
public static Collection getCDIAnnotatedClassNames(DeploymentContext context) {
Set result = new HashSet();
Types types = getTypes(context);
if (types != null) {
Iterator typesIter = types.getAllTypes().iterator();
while (typesIter.hasNext()) {
Type type = typesIter.next();
if (!(type instanceof AnnotationType)) {
Iterator annotations = type.getAnnotations().iterator();
while (annotations.hasNext()) {
AnnotationModel am = annotations.next();
AnnotationType at = am.getType();
if (isCDIEnablingAnnotation(at)) {
if (!result.contains(at.getName())) {
result.add(type.getName());
}
}
}
}
}
}
return result;
}
/**
* Determine whether the specified class is annotated with a CDI scope annotation.
*
* @param clazz The class to check.
*
* @return true, if the specified class has a CDI scope annotation; Otherwise, false.
*/
public static boolean hasScopeAnnotation(Class clazz) {
return hasValidAnnotation(clazz, cdiScopeAnnotations, null);
}
/**
* Determine whether the specified class is annotated with a CDI-enabling annotation.
*
* @param clazz The class to check.
*
* @return true, if the specified class has a CDI scope annotation; Otherwise, false.
*/
public static boolean hasCDIEnablingAnnotation(Class clazz) {
return hasValidAnnotation(clazz, cdiEnablingAnnotations, null);
}
/**
* Determine if the specified annotation type is a CDI-enabling annotation
*
* @param annotationType The annotation type to check
*
* @return true, if the specified annotation type qualifies as a CDI enabler; Otherwise, false
*/
private static boolean isCDIEnablingAnnotation(AnnotationType annotationType) {
return isCDIEnablingAnnotation(annotationType, null);
}
/**
* Determine if the specified annotation type is a CDI-enabling annotation
*
* @param annotationType The annotation type to check
* @param excludedTypeNames The Set of annotation type names that should be excluded from the analysis
*
* @return true, if the specified annotation type qualifies as a CDI enabler; Otherwise, false
*/
private static boolean isCDIEnablingAnnotation(AnnotationType annotationType,
Set excludedTypeNames) {
boolean result = false;
Set exclusions = new HashSet();
if (excludedTypeNames != null) {
exclusions.addAll(excludedTypeNames);
}
String annotationTypeName = annotationType.getName();
if (cdiEnablingAnnotations.contains(annotationTypeName) && !exclusions.contains(annotationTypeName)) {
result = true;
} else if (!exclusions.contains(annotationTypeName)) {
// If the annotation type itself is not an excluded type, then check it's annotation
// types, less itself (to avoid infinite recursion)
exclusions.add(annotationTypeName);
for (AnnotationModel parent : annotationType.getAnnotations()) {
if (isCDIEnablingAnnotation(parent.getType(), exclusions)) {
result = true;
break;
}
}
}
return result;
}
/**
* Determine whether the specified class is annotated with one of the annotations in the specified
* validScopes collection, but not with any of the annotations in the specified exclusion set.
*
* @param annotatedClass The class to check.
* @param validScopes A collection of valid CDI scope type names
* @param excludedScopes A collection of excluded CDI scope type names
*
* @return true, if the specified class has at least one of the annotations specified in
* validScopes, and none of the annotations specified in excludedScopes; Otherwise, false.
*/
public static boolean hasValidAnnotation(Class annotatedClass,
Collection validScopes,
Collection excludedScopes) {
boolean result = false;
// Check all the annotations on the specified Class to determine if the class is annotated
// with a supported CDI scope
for (Annotation annotation : annotatedClass.getAnnotations()) {
if (WeldUtils.isValidAnnotation(annotation.annotationType(),
validScopes,
excludedScopes)) {
result =true;
break;
}
}
return result;
}
/**
* Determine whether the specified annotation type is one of the specified valid types and not
* in the specified exclusion list. Positive results include those annotations which are themselves
* annotated with types in the valid list.
*
* @param annotationType The annotation type to check
* @param validTypeNames The valid annotation type names
* @param excludedTypeNames The excluded annotation type names
*
* @return true, if the specified type is in the valid list and not in the excluded list; Otherwise, false.
*/
protected static boolean isValidAnnotation(Class annotationType,
Collection validTypeNames,
Collection excludedTypeNames) {
boolean result = false;
if (validTypeNames != null && !validTypeNames.isEmpty()) {
HashSet excludedScopes = new HashSet();
if (excludedTypeNames != null) {
excludedScopes.addAll(excludedTypeNames);
}
String annotationTypeName = annotationType.getName();
if (validTypeNames.contains(annotationTypeName) && !excludedScopes.contains(annotationTypeName)) {
result = true;
} else if (!excludedScopes.contains(annotationTypeName)){
// If the annotation type itself is not an excluded type, then check it's annotation
// types, less itself (to avoid infinite recursion)
excludedScopes.add(annotationTypeName);
for (Annotation parent : annotationType.getAnnotations()) {
if (isValidAnnotation(parent.annotationType(), validTypeNames, excludedScopes)) {
result = true;
break;
}
}
}
}
return result;
}
private static Types getTypes(DeploymentContext context) {
String metadataKey = Types.class.getName();
Types types = (Types) context.getTransientAppMetadata().get(metadataKey);
while (types == null) {
context = ((ExtendedDeploymentContext) context).getParentContext();
if (context != null) {
types = (Types) context.getTransientAppMetadata().get(metadataKey);
} else {
break;
}
}
return types;
}
public static boolean isImplicitBeanDiscoveryEnabled() {
boolean result = false;
// Check the "global" configuration
ServiceLocator serviceLocator = Globals.getDefaultHabitat();
if (serviceLocator != null) {
Config config = serviceLocator.getService(Config.class, ServerEnvironment.DEFAULT_INSTANCE_NAME);
if (config != null) {
result = Boolean.valueOf(config.getExtensionByType(CDIService.class).getEnableImplicitCdi());
}
}
return result;
}
public static boolean isImplicitBeanDiscoveryEnabled(DeploymentContext context) {
boolean result = false;
if (isImplicitBeanDiscoveryEnabled()) {
// If implicit discovery is enabled for the server, then check if it's disabled for the
// deployment of this application.
Object propValue = context.getAppProps().get(RuntimeTagNames.IMPLICIT_CDI_ENABLED_PROP);
Object appPropValue = context.getAppProps().get(RuntimeTagNames.PAYARA_ENABLE_IMPLICIT_CDI);
if(appPropValue != null) {
propValue = appPropValue;
}
// If the property is not set, or it's value is true, then implicit discovery is enabled
result = (propValue == null || Boolean.parseBoolean((String) propValue));
}
return result;
}
public static boolean isCDIDevModeEnabled(DeploymentContext context) {
Object propValue = context.getAppProps().get(ServerTags.CDI_DEV_MODE_ENABLED_PROP);
return propValue != null && Boolean.parseBoolean((String) propValue);
}
public static InputStream getBeansXmlInputStream(DeploymentContext context) {
return getBeansXmlInputStream( context.getSource() );
}
/**
* Determine if an archive is a valid bda based on what the spec says about extensions.
* See section 12.1 which states that if an archive contains an extension but no beans.xml then it is NOT
* a valid bean deployment archive.
*
* @param archive The archive to check.
* @return false if there is an extension and no beans.xml
* true otherwise
*/
public static boolean isValidBdaBasedOnExtensionAndBeansXml( ReadableArchive archive ) {
boolean retVal = true;
try {
if ( archive.exists(META_INF_SERVICES_EXTENSION)) {
retVal = false;
InputStream inputStream = getBeansXmlInputStream( archive );
if ( inputStream != null ) {
retVal = true; // is a valid bda
try {
inputStream.close();
} catch (IOException ignore) {
}
}
}
} catch (IOException ignore) {
}
return retVal;
}
public static InputStream getBeansXmlInputStream( ReadableArchive archive ) {
InputStream inputStream = null;
try {
if (archive.exists(WeldUtils.WEB_INF)) {
inputStream = archive.getEntry(WeldUtils.WEB_INF_BEANS_XML);
if (inputStream == null) {
inputStream = archive.getEntry(WeldUtils.WEB_INF_CLASSES_META_INF_BEANS_XML);
}
} else {
inputStream = archive.getEntry(WeldUtils.META_INF_BEANS_XML);
}
} catch (IOException e) {
return null;
}
return inputStream;
}
/**
* Get the "bean-discovery-mode" from the "beans" element if it exists in beans.xml
* From section 12.1 of CDI spec:
* A bean archive has a bean discovery mode of all, annotated or none. A bean archive which
* contains a beans.xml file with no version has a default bean discovery mode of all. A bean
* archive which contains a beans.xml file with version 1.1 (or later) must specify the bean-
* discovey-mode attribute. The default value for the attribute is annotated.
*
* @param beansXmlInputStream The InputStream for the beans.xml to check.
* @return "annotated" if there is no beans.xml
* "all" if the bean-discovery-mode is missing
* "annotated" if the bean-discovery-mode is empty
* The value of bean-discovery-mode in all other cases.
*/
public static String getBeanDiscoveryMode( InputStream beansXmlInputStream ) {
if ( beansXmlInputStream == null ) {
// there is no beans.xml.
return "annotated";
}
String beanDiscoveryMode = null;
LocalDefaultHandler handler = new LocalDefaultHandler();
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
saxParser.parse(beansXmlInputStream, handler);
} catch ( SAXStoppedIntentionallyException exc ) {
beanDiscoveryMode = handler.getBeanDiscoveryMode();
} catch (Exception ignore) {
}
if (beanDiscoveryMode == null ) {
return "all";
} else if (beanDiscoveryMode.equals("")) {
return "annotated";
} else {
return beanDiscoveryMode;
}
}
private static class LocalDefaultHandler extends DefaultHandler {
String beanDiscoveryMode = null;
public void startElement(String uri, String localName,String qName, Attributes attributes) throws SAXException {
if ( qName.equals( "beans" ) ) {
beanDiscoveryMode = attributes.getValue("bean-discovery-mode");
if ( beanDiscoveryMode != null ) {
if ( beanDiscoveryMode.equals( "" ) ) {
beanDiscoveryMode = "annotated";
}
}
throw new SAXStoppedIntentionallyException();
}
}
public String getBeanDiscoveryMode() {
return beanDiscoveryMode;
}
}
private static class SAXStoppedIntentionallyException extends SAXException {
private SAXStoppedIntentionallyException() {
super();
}
}
}