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Micro Distribution of the Payara Project for IBM JDK
/*
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*
* Copyright (c) 2010-2013 Oracle and/or its affiliates. All rights reserved.
*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
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* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.sun.enterprise.glassfish.bootstrap.osgi;
import com.sun.enterprise.glassfish.bootstrap.Constants;
import org.glassfish.embeddable.*;
import org.osgi.framework.*;
import java.io.File;
import java.net.URI;
import java.util.Enumeration;
import java.util.Properties;
import java.util.Set;
import static com.sun.enterprise.glassfish.bootstrap.osgi.Constants.AUTO_INSTALL_PROP;
import static com.sun.enterprise.glassfish.bootstrap.osgi.Constants.AUTO_START_PROP;
/**
* This activator is used when glassfish.jar is installed and started
* in an existing OSGi runtime. It expects install root and instance root
* to be set via framework context properties called com.sun.aas.installRoot and com.sun.aas.instanceRoot
* respectively. The former one refers to the directory where glassfish is installed.
* (e.g., /tmp/glassfish4/glassfish)
* The latter one refers to the domain directory - this is a directory containing
* configuration information and deployed applications, etc.
* If instance root is not set, it defaults to $installRoot/domains/domain1/.
*
* Depending on the two context, it either builds a new GlassFishRuntime from scratch (i.e., by installing
* necessary GlassFish bundles) or it just makes a new GlassFishRuntime and registers it in service registry.
* Former is the case when user installs and starts just this bundle, where as latter is the case when this
* bundle is invoked as part of GlassFish launching code as found in {@link OSGiGlassFishRuntimeBuilder}.
* The reason for registering a GlassFishRuntime service is that the service has dependency on things like HK2
* which are not available via parent loader, so unless we register here, we will have ClassCastException.
*
* @author [email protected]
* @see #prepareStartupContext(org.osgi.framework.BundleContext)
*/
public class GlassFishMainActivator implements BundleActivator {
private String installRoot;
/**
* GlassFishRuntime being a singleton can't be bootstrapped more than once.
* We can't maintain a static variable & perform a null check to detect whether it has been bootstrapped
* or not, because this class being a non-exported class will get replaced when this bundle is updated.
* Nor can we assume that GlassFishRuntime.class is loaded by this bundle, for we actually expect/recommend
* users to have embeddable packages be part of system bundle. In such a case, we can't bootstrap it
* more than once in the same framework without shutting down GlassFishRuntime.
* So, we make use of the service registry to help us detect if we have bootstrapped the runtime
* or someone else has. When we bootstrap, we note it by storing it in a field and accordingly shutdown in our
* stop().
*
* @see #start
*/
private GlassFishRuntime gfr;
/**
* The created GlassFish instance - can be null. We currently create GlassFish only in embedded mode.
* In non-embedde mode, we let it get created by the launcher.
*/
private GlassFish gf;
private static final String[] DEFAULT_INSTALLATION_LOCATIONS_RELATIVE = new String[]{
// Order is important. endorsed must be ahead of others
"modules/endorsed/",
"modules/",
"modules/autostart/"
};
private static final String[] DEFAULT_START_LOCATIONS_RELATIVE = new String[]{
// Order is important. endorsed must be ahead of others
// osgi-resource-locator must come ahead of osgi-adapter
"modules/endorsed/",
"modules/osgi-resource-locator.jar",
"modules/osgi-adapter.jar",
"modules/autostart/"
};
/**
* Are in activated in embedded or non-embedded mode?
* Depending on the mode, either we bootstrap the runtime or just register the runtime as a service.
*/
private boolean nonEmbedded;
public void start(BundleContext context) throws Exception {
nonEmbedded = context.getProperty(Constants.BUILDER_NAME_PROPERTY) != null;
if (nonEmbedded) {
GlassFishRuntime embeddedGfr = new EmbeddedOSGiGlassFishRuntime(context);
context.registerService(GlassFishRuntime.class.getName(), embeddedGfr, null);
System.out.println("Registered " + embeddedGfr + " in service registry.");
} else {
Properties properties = prepareStartupContext(context);
final BootstrapProperties bsProperties = new BootstrapProperties(properties);
System.out.println(GlassFishRuntime.class + " is loaded by [" + GlassFishRuntime.class.getClassLoader() + "]");
GlassFishRuntime existingGfr = lookupGfr(context);
if (existingGfr == null) {
System.out.println("Bootstrapping a new GlassFishRuntime");
// Should we do the following in a separate thread?
gfr = GlassFishRuntime.bootstrap(bsProperties, getClass().getClassLoader());
existingGfr = gfr;
} else {
System.out.println("Using existing GlassFishRuntime: [" + existingGfr + "]");
}
gf = existingGfr.newGlassFish(new GlassFishProperties(properties));
gf.start();
}
}
/**
*
* @return an already bootstrapped GlassFishRuntime or null if no such runtime is bootstrapped
*/
private GlassFishRuntime lookupGfr(BundleContext context) {
if (context == null) {
return null;
}
final ServiceReference serviceReference = context.getServiceReference(GlassFishRuntime.class.getName());
return serviceReference != null ? (GlassFishRuntime) context.getService(serviceReference) : null;
}
private Properties prepareStartupContext(final BundleContext context) {
Properties properties = new Properties();
properties.putAll(System.getProperties());
// override by what's defined in BundleContext,
for (String key : properties.stringPropertyNames()) {
String value = context.getProperty(key);
if (value != null && !value.equals(System.getProperty(key))) {
properties.setProperty(key, value);
}
}
installRoot = context.getProperty(Constants.INSTALL_ROOT_PROP_NAME);
if (installRoot == null) {
installRoot = guessInstallRoot(context);
if (installRoot == null) {
throw new RuntimeException("Property named " + Constants.INSTALL_ROOT_PROP_NAME + " is not set.");
} else {
System.out.println("Deduced install root as : " + installRoot + " from location of bundle. " +
"If this is not correct, set correct value in a property called " +
Constants.INSTALL_ROOT_PROP_NAME);
}
}
if (!new File(installRoot).exists()) {
throw new RuntimeException("No such directory: [" + installRoot + "]");
}
properties.setProperty(Constants.INSTALL_ROOT_PROP_NAME,
installRoot);
String instanceRoot = context.getProperty(Constants.INSTANCE_ROOT_PROP_NAME);
if (instanceRoot == null) {
instanceRoot = new File(installRoot, "domains/domain1/").getAbsolutePath();
}
properties.setProperty(Constants.INSTANCE_ROOT_PROP_NAME,
instanceRoot);
properties.putAll(makeProvisioningOptions(context));
// This property is understood by our corresponding builder.
properties.setProperty(Constants.BUILDER_NAME_PROPERTY, EmbeddedOSGiGlassFishRuntimeBuilder.class.getName());
return properties;
}
/**
* This method tries to guess install root based on location of the bundle. Please note, because location of a
* bundle is free form string, this method can come to very wrong conclusion if user wants to fool us.
*
* @param context
* @return
*/
private String guessInstallRoot(BundleContext context) {
String location = context.getBundle().getLocation();
try {
final URI uri = URI.create(location);
File f = new File(uri);
// We can't assume it is glassfish/modules/glassfish.jar.
// Bare nucleus is installed as nucleus/modules/glassfish.jar.
if (f.exists() && f.isFile() && f.getParentFile().getCanonicalPath().endsWith("modules")) {
return f.getParentFile().getParentFile().getAbsolutePath();
}
} catch (Exception e) {
}
return null;
}
private Properties makeProvisioningOptions(BundleContext context) {
Properties provisioningOptions = new Properties();
URI installURI = new File(installRoot).toURI();
String installLocations = context.getProperty(AUTO_INSTALL_PROP);
if (installLocations == null) {
StringBuilder defaultInstallLocations = new StringBuilder();
for (String entry : DEFAULT_INSTALLATION_LOCATIONS_RELATIVE) {
defaultInstallLocations.append(installURI.resolve(entry).toString()).append(" ");
}
installLocations = defaultInstallLocations.toString();
}
provisioningOptions.setProperty(AUTO_INSTALL_PROP, installLocations);
String startLocations = context.getProperty(AUTO_START_PROP);
if (startLocations == null) {
StringBuilder deafultStartLocations = new StringBuilder();
for (String entry : DEFAULT_START_LOCATIONS_RELATIVE) {
deafultStartLocations.append(installURI.resolve(entry).toString()).append(" ");
}
startLocations = deafultStartLocations.toString();
}
provisioningOptions.setProperty(AUTO_START_PROP, startLocations);
System.out.println("Provisioning options are " + provisioningOptions);
return provisioningOptions;
}
public void stop(BundleContext context) throws Exception {
if (nonEmbedded) {
System.out.println("We are in non-embedded mode, so " + context.getBundle() + " has nothing to do.");
return;
}
try {
// gf can be null - especially in non-embedded mode.
if (gf != null && gf.getStatus() != GlassFish.Status.DISPOSED) {
gf.dispose(); // dispose calls stop
}
} finally {
gf = null;
}
if (gfr != null) { // gfr is non-null only if this activator has bootstrapped, else it's null.
gfr.shutdown();
gfr = null;
}
}
}
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