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package org.glassfish.appclient.server.core;
import com.sun.enterprise.deployment.Application;
import com.sun.enterprise.deployment.BundleDescriptor;
import org.glassfish.deployment.common.ModuleDescriptor;
import com.sun.enterprise.module.Module;
import com.sun.enterprise.module.ModulesRegistry;
import java.io.*;
import java.net.URL;
import java.util.Collection;
import java.util.Iterator;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.inject.Inject;
import org.glassfish.api.deployment.DeployCommandParameters;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.deployment.common.ClientArtifactsManager;
import org.glassfish.deployment.common.DeploymentException;
import org.glassfish.deployment.versioning.VersioningSyntaxException;
import org.glassfish.appclient.server.connector.CarType;
import org.glassfish.deployment.common.DeploymentUtils;
import org.glassfish.deployment.versioning.VersioningUtils;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PerLookup;
/**
* Generates the app client group (EAR-level) facade JAR.
* <p>
* Because an EAR can contain multiple clients, this might be run multiple
* times. To avoid extra work the class stores a flag that it has done its
* work in the deployment context's transient app data.
*
* @author tjquinn
*/
@Service
@PerLookup
public class AppClientGroupFacadeGenerator {
private static final String GLASSFISH_APPCLIENT_GROUP_FACADE_CLASS_NAME =
"org.glassfish.appclient.client.AppClientGroupFacade";
private static final Attributes.Name GLASSFISH_APPCLIENT_GROUP = new Attributes.Name("GlassFish-AppClient-Group");
private static final String GF_CLIENT_MODULE_NAME = "org.glassfish.main.appclient.gf-client-module";
private static final String GROUP_FACADE_ALREADY_GENERATED = "groupFacadeAlreadyGenerated";
private DeploymentContext dc;
private AppClientDeployerHelper helper;
@Inject
private ModulesRegistry modulesRegistry;
@Inject
private CarType carType;
private ClassLoader gfClientModuleClassLoader = null;
void run(final AppClientDeployerHelper helper) {
dc = helper.dc();
this.helper = helper;
if ( ! groupFacadeAlreadyGenerated().get()) {
generateGroupFacade();
}
}
private ClassLoader gfClientModuleClassLoader() {
if (gfClientModuleClassLoader == null) {
for (Module module : modulesRegistry.getModules(GF_CLIENT_MODULE_NAME)) {
gfClientModuleClassLoader = module.getClassLoader();
}
}
return gfClientModuleClassLoader;
}
private AtomicBoolean groupFacadeAlreadyGenerated() {
AtomicBoolean groupFacadeAlreadyGenerated =
dc.getTransientAppMetaData(GROUP_FACADE_ALREADY_GENERATED, AtomicBoolean.class);
if (groupFacadeAlreadyGenerated == null) {
groupFacadeAlreadyGenerated = new AtomicBoolean(false);
dc.addTransientAppMetaData(GROUP_FACADE_ALREADY_GENERATED,
groupFacadeAlreadyGenerated);
}
return groupFacadeAlreadyGenerated;
}
private void recordGroupFacadeGeneration() {
dc.getTransientAppMetaData(GROUP_FACADE_ALREADY_GENERATED, AtomicBoolean.class).set(true);
}
private void generateGroupFacade() {
final Application application = dc.getModuleMetaData(Application.class);
final Collection<ModuleDescriptor<BundleDescriptor>> appClients =
application.getModuleDescriptorsByType(carType);
final StringBuilder appClientGroupListSB = new StringBuilder();
/*
/*
* For each app client, get its facade's URI to include in the
* generated EAR facade's client group listing.
*/
for (Iterator<ModuleDescriptor<BundleDescriptor>> it = appClients.iterator(); it.hasNext(); ) {
ModuleDescriptor<BundleDescriptor> md = it.next();
appClientGroupListSB.append((appClientGroupListSB.length() > 0) ? " " : "")
.append(earDirUserURIText(dc)).append(appClientFacadeUserURI(md.getArchiveUri()));
}
try {
/*
* Pass the EAR's generated/xml directory for where to generated the
* group facade. Because the directories are flattened, even if the
* client is actually x/y/z.jar its expanded directory will be just
* one level lower than the EAR's directory.
*/
generateAndRecordEARFacadeContents(
dc,
appClientGroupListSB.toString());
recordGroupFacadeGeneration();
} catch (Exception e) {
throw new DeploymentException(e);
}
}
private String earDirUserURIText(final DeploymentContext dc) {
final DeployCommandParameters deployParams = dc.getCommandParameters(DeployCommandParameters.class);
final String appName = deployParams.name();
try {
return VersioningUtils.getUntaggedName(appName) + "Client/";
} catch (VersioningSyntaxException ex) {
Logger.getLogger(AppClientGroupFacadeGenerator.class.getName()).log(Level.SEVERE, null, ex);
}
return appName;
}
private String appClientFacadeUserURI(String appClientModuleURIText) {
if (appClientModuleURIText.endsWith("_jar")) {
appClientModuleURIText = appClientModuleURIText.substring(0, appClientModuleURIText.lastIndexOf("_jar")) + ".jar";
}
final int dotJar = appClientModuleURIText.lastIndexOf(".jar");
String appClientFacadePath = appClientModuleURIText.substring(0, dotJar) + "Client.jar";
return appClientFacadePath;
}
/**
* Generates content for the top-level generated client JAR from the
* app clients in this app.
* <p>
* Higher-level logic will actually create the client JAR, because the need
* for a client JAR can be triggered by other deployers (EJB for generated
* stubs and web services), not only app clients.
* @param dc
* @param appScratchDir
* @param facadeFileName
* @param appClientGroupList
* @throws IOException
*/
private void generateAndRecordEARFacadeContents(
final DeploymentContext dc,
final String appClientGroupList) throws IOException {
final ClientArtifactsManager clientArtifactsManager = ClientArtifactsManager.get(dc);
final Manifest manifest = new Manifest();
Attributes mainAttrs = manifest.getMainAttributes();
mainAttrs.put(Attributes.Name.MANIFEST_VERSION, "1.0");
mainAttrs.put(Attributes.Name.MAIN_CLASS, GLASSFISH_APPCLIENT_GROUP_FACADE_CLASS_NAME);
mainAttrs.put(GLASSFISH_APPCLIENT_GROUP, appClientGroupList);
//Now manifest is ready to be written.
final File manifestFile = File.createTempFile("groupMF", ".MF");
final OutputStream manifestOutputStream = new BufferedOutputStream(new FileOutputStream(manifestFile)); //facadeArchive.putNextEntry(JarFile.MANIFEST_NAME);
try {
manifest.write(manifestOutputStream);
} finally {
manifestOutputStream.close();
}
clientArtifactsManager.add(manifestFile, JarFile.MANIFEST_NAME, true /* isTemp */);
writeMainClass(clientArtifactsManager);
/*
* Higher-level code will copy the files generated here plus other deployers'
* artifacts - such as generated stubs - into the generated client JAR
* which the app client deployer views as the group facade.
* Each client's individual facade JARs then refer
* to the group facade in their Class-Path so they can see the stubs.
* This also allows Java SE clients to add the group facade JAR to
* the runtime class path and see the stubs. (This allows users who
* did this in v2 to use the same technique.)
*/
}
private void writeMainClass(final ClientArtifactsManager clientArtifactsManager) throws IOException {
final String mainClassResourceName =
GLASSFISH_APPCLIENT_GROUP_FACADE_CLASS_NAME.replace('.', '/') +
".class";
final File mainClassFile = File.createTempFile("main", ".class");
final OutputStream os = new BufferedOutputStream(new FileOutputStream(mainClassFile));
try {
InputStream is = openByteCodeStream(mainClassResourceName);
DeploymentUtils.copyStream(is, os);
os.close();
is.close();
clientArtifactsManager.add(mainClassFile, mainClassResourceName, true);
} catch (Exception e) {
throw new DeploymentException(e);
}
}
protected InputStream openByteCodeStream(final String resourceName) throws IOException {
URL url = gfClientModuleClassLoader().getResource(resourceName);
if (url == null) {
throw new IllegalArgumentException(resourceName);
}
InputStream is = url.openStream();
return is;
}
}