/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sling.installer.core.impl.tasks;
import org.apache.sling.installer.api.tasks.InstallationContext;
import org.apache.sling.installer.api.tasks.ResourceState;
import org.apache.sling.installer.api.tasks.TaskResourceGroup;
import org.osgi.framework.Bundle;
import org.osgi.service.startlevel.StartLevel;
/**
* Install a bundle supplied as a RegisteredResource.
* Creates a BundleStartTask to start the bundle.
*/
public class BundleInstallTask extends AbstractBundleTask {
private static final String BUNDLE_INSTALL_ORDER = "40-";
public BundleInstallTask(final TaskResourceGroup r,
final TaskSupport creator) {
super(r, creator);
}
/**
* @see org.apache.sling.installer.api.tasks.InstallTask#execute(org.apache.sling.installer.api.tasks.InstallationContext)
*/
@Override
public void execute(final InstallationContext ctx) {
final int startLevel = this.getBundleStartLevel();
try {
final Bundle b = this.getBundleContext().installBundle(getResource().getURL(), getResource().getInputStream());
ctx.log("Installed bundle {} from resource {}", b, getResource());
// optionally set the start level
if ( startLevel > 0 ) {
// get the start level service (if possible) so we can set the initial start level
final StartLevel startLevelService = this.getStartLevel();
if (startLevelService != null) {
startLevelService.setBundleStartLevel(b, startLevel);
ctx.log("Set start level for bundle {} to {}", b, startLevel);
} else {
this.getLogger().info("Ignoring start level {} for bundle {} - start level service not available.",
startLevel, b);
}
}
// fragment?
if ( BundleUtil.isSystemBundleFragment(b) ) {
// first install of a system fragment does not need a refresh of the host
// so we can just set the state and are done.
this.setFinishedState(ResourceState.INSTALLED);
} else {
final String fragmentHostHeader = BundleUtil.getFragmentHostHeader(b);
if (fragmentHostHeader != null) {
this.getLogger().debug("Need to do a refresh of the bundle's {} host", b);
for (final Bundle bundle : this.getBundleContext().getBundles()) {
if (fragmentHostHeader.equals(bundle.getSymbolicName())) {
this.getLogger().debug("Found host bundle for {} to refresh: {}", b, bundle);
RefreshBundlesTask.markBundleForRefresh(ctx, this.getTaskSupport(), bundle);
break;
}
}
this.setFinishedState(ResourceState.INSTALLED);
} else {
// mark this resource as to be started
BundleUtil.markBundleStart(getResource());
ctx.addTaskToCurrentCycle(new BundleStartTask(getResourceGroup(), b.getBundleId(), this.getTaskSupport()));
}
}
} catch (final Exception ex) {
// if something goes wrong we simply try it again
this.getLogger().info("Exception during install of bundle " + this.getResource() + " : " + ex.getMessage() + ". Retrying later.", ex);
}
}
@Override
public String getSortKey() {
return BUNDLE_INSTALL_ORDER + getSortableStartLevel() + "-" + getResource().getURL();
}
}