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package org.glassfish.weld.connector;
import java.io.IOException;
import java.util.Enumeration;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.api.deployment.archive.ArchiveType;
import org.glassfish.javaee.core.deployment.ApplicationHolder;
import org.jvnet.hk2.annotations.Service;
import javax.inject.Singleton;
import javax.enterprise.deploy.shared.ModuleType;
/**
* This sniffer determines if there are any beans.xml at the ear level.
*/
@Service(name = "weldCompositeSniffer")
@Singleton
public class WeldCompositeSniffer extends WeldSniffer {
public boolean handles(DeploymentContext context) {
ArchiveType archiveType = habitat.getService(ArchiveType.class, context.getArchiveHandler().getArchiveType());
if (archiveType != null && !supportsArchiveType(archiveType)) {
return false;
}
boolean isWeldApplication = false;
ApplicationHolder holder = context.getModuleMetaData(ApplicationHolder.class);
ReadableArchive appRoot = context.getSource();
if ((holder != null) && (holder.app != null)) {
isWeldApplication = scanLibDir(appRoot, holder.app.getLibraryDirectory(), context);
}
return isWeldApplication;
}
/**
*
* 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.EAR.toString())) {
return true;
}
return false;
}
// This method returns true if at least one /lib jar is a Weld archive
// A more thorough scan is done in WeldDeployer to extract all Weld archives
// under the /lib directory.
private boolean scanLibDir(ReadableArchive archive, String libLocation, DeploymentContext context) {
boolean entryPresent = false;
if (libLocation != null && !libLocation.isEmpty()) {
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);
if (!entryPresent) {
entryPresent = WeldUtils.isImplicitBeanArchive(context, jarInLib);
}
jarInLib.close();
if (entryPresent) break;
} 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;
}
}