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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.core.config;
import com.yahoo.osgi.Osgi;
import org.osgi.framework.Bundle;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Used to install the bundles that are added as platform bundles by the config-model.
*
* All platform bundles reside on disk, and they are never uninstalled.
* Platform bundles are allowed to pre-install other bundles on disk via the
* X-JDisc-Preinstall-Bundle manifest header.
*
* Attempts to install additional bundles, after the first call, should be a NOP.
*
* @author gjoranv
*/
public class PlatformBundleLoader {
private static final Logger log = Logger.getLogger(PlatformBundleLoader.class.getName());
private final Osgi osgi;
private final DiskBundleInstaller installer;
private Set<Bundle> installedBundles;
private boolean hasLoadedBundles = false;
public PlatformBundleLoader(Osgi osgi) {
this(osgi, new DiskBundleInstaller());
}
PlatformBundleLoader(Osgi osgi, DiskBundleInstaller installer) {
this.osgi = osgi;
this.installer = installer;
}
public void useBundles(List<String> bundlePaths) {
if (hasLoadedBundles) {
log.log(Level.FINE, () -> "Platform bundles have already been installed." +
"\nInstalled bundles: " + installedBundles +
"\nGiven files: " + bundlePaths);
return;
}
installedBundles = install(bundlePaths);
BundleStarter.startBundles(installedBundles);
hasLoadedBundles = true;
}
private Set<Bundle> install(List<String> bundlesToInstall) {
var allInstalled = new LinkedHashSet<Bundle>();
for (String bundlePath : bundlesToInstall) {
try {
allInstalled.addAll(installBundleFromDisk(bundlePath));
}
catch(Exception e) {
throw new RuntimeException("Could not install bundle '" + bundlePath + "'", e);
}
}
return allInstalled;
}
private List<Bundle> installBundleFromDisk(String bundlePath) {
log.log(Level.FINE, "Installing bundle from disk: " + bundlePath);
List<Bundle> bundles = installer.installBundles(bundlePath, osgi);
log.log(Level.FINE, "Installed " + bundles.size() + " bundles for file " + bundlePath);
return bundles;
}
}
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