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package org.glassfish.weld.connector;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.deployment.archive.ArchiveType;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.internal.deployment.GenericSniffer;
import org.jvnet.hk2.annotations.Service;
import javax.enterprise.deploy.shared.ModuleType;
import javax.inject.Singleton;
import java.io.IOException;
import java.util.Enumeration;
/**
* Implementation of the Sniffer for Weld.
*/
@Service(name="weld")
@Singleton
public class WeldSniffer extends GenericSniffer {
private static final String[] containers = { "org.glassfish.weld.WeldContainer" };
public WeldSniffer() {
// We do not haGenericSniffer(String containerName, String appStigma, String urlPattern
super("weld", null /* appStigma */, null /* urlPattern */);
}
/**
* Returns true if the archive contains beans.xml as defined by packaging rules of Weld
*/
@Override
public boolean handles(ReadableArchive archive) {
boolean isWeldArchive = false;
// scan for beans.xml in expected locations. If at least one is found, this is
// a Weld archive
//
if (isEntryPresent(archive, WeldUtils.WEB_INF)) {
isWeldArchive = isEntryPresent(archive, WeldUtils.WEB_INF_BEANS_XML) ||
isEntryPresent(archive, WeldUtils.WEB_INF_CLASSES_META_INF_BEANS_XML);
if (!isWeldArchive) {
// Check jars under WEB_INF/lib
if (isEntryPresent(archive, WeldUtils.WEB_INF_LIB)) {
isWeldArchive = scanLibDir(archive, WeldUtils.WEB_INF_LIB);
}
}
}
// TODO This doesn't seem to match the ReadableArchive for a stand-alone ejb-jar.
// It might only be true for an ejb-jar within an .ear. Revisit when officially
// adding support for .ears
String archiveName = archive.getName();
if (!isWeldArchive && archiveName != null && archiveName.endsWith(WeldUtils.EXPANDED_JAR_SUFFIX)) {
isWeldArchive = isEntryPresent(archive, WeldUtils.META_INF_BEANS_XML);
}
// If stand-alone ejb-jar
if (!isWeldArchive && isEntryPresent(archive, WeldUtils.META_INF_BEANS_XML) ) {
isWeldArchive = true;
}
if (!isWeldArchive && archiveName != null && archiveName.endsWith(WeldUtils.EXPANDED_RAR_SUFFIX)) {
isWeldArchive = isEntryPresent(archive, WeldUtils.META_INF_BEANS_XML);
if (!isWeldArchive) {
// Check jars in root dir of rar
isWeldArchive = scanLibDir(archive, "");
}
}
return isWeldArchive;
}
private boolean scanLibDir(ReadableArchive archive, String libLocation) {
boolean entryPresent = false;
if (libLocation != null) {
Enumeration<String> entries = archive.entries(libLocation);
while (entries.hasMoreElements() && !entryPresent) {
String entryName = entries.nextElement();
// if a jar in lib dir and not WEB-INF/lib/foo/bar.jar
if (entryName.endsWith(WeldUtils.JAR_SUFFIX) &&
entryName.indexOf(WeldUtils.SEPARATOR_CHAR, libLocation.length() + 1 ) == -1 ) {
try {
ReadableArchive jarInLib = archive.getSubArchive(entryName);
entryPresent = isEntryPresent(jarInLib, WeldUtils.META_INF_BEANS_XML);
jarInLib.close();
} catch (IOException e) {
}
}
}
}
return entryPresent;
}
private boolean isEntryPresent(ReadableArchive archive, String entry) {
boolean entryPresent = false;
try {
entryPresent = archive.exists(entry);
} catch (IOException e) {
// ignore
}
return entryPresent;
}
public String[] getContainersNames() {
return containers;
}
/**
*
* This API is used to help determine if the sniffer should recognize
* the current archive.
* If the sniffer does not support the archive type associated with
* the current deployment, the sniffer should not recognize the archive.
*
* @param archiveType the archive type to check
* @return whether the sniffer supports the archive type
*
*/
public boolean supportsArchiveType(ArchiveType archiveType) {
if (archiveType.toString().equals(ModuleType.WAR.toString()) ||
archiveType.toString().equals(ModuleType.EJB.toString()) ||
archiveType.toString().equals(ModuleType.RAR.toString())) {
return true;
}
return false;
}
@Override
public String[] getAnnotationNames(DeploymentContext context) {
return WeldUtils.isImplicitBeanDiscoveryEnabled() ? WeldUtils.getCDIEnablingAnnotations(context) : null;
}
}