/*
* 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 java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
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.apache.sling.installer.core.impl.AbstractInstallTask;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleException;
/**
* Update the system bundle from a RegisteredResource.
*/
public class SystemBundleUpdateTask extends AbstractInstallTask {
private static final String BUNDLE_UPDATE_ORDER = "01-";
private static final String SYSTEM_BUNDLE_UPDATE_ORDER = BUNDLE_UPDATE_ORDER + "systembundle(0)";
public SystemBundleUpdateTask(final TaskResourceGroup r,
final TaskSupport taskSupport) {
super(r, taskSupport);
}
@Override
public void execute(final InstallationContext ctx) {
final Bundle systemBundle = this.getBundleContext().getBundle(0);
// sanity check
if ( systemBundle == null ) {
this.setFinishedState(ResourceState.IGNORED);
ctx.asyncTaskFailed(this);
return;
}
// restart system bundle
if ( this.getResource() == null ) {
ctx.log("Refreshing system bundle.");
this.getBundleRefresher().refreshBundles(ctx, Collections.singletonList(systemBundle), false);
} else {
InputStream is = null;
try {
is = getResource().getInputStream();
if (is == null) {
getLogger().warn(
"RegisteredResource provides null InputStream, cannot update system bundle: "
+ getResource());
this.setFinishedState(ResourceState.IGNORED);
ctx.asyncTaskFailed(this);
} else {
try {
systemBundle.update(is);
} catch (final BundleException e) {
getLogger().warn("Updating system bundle failed - unable to retry: " + this, e);
this.setFinishedState(ResourceState.IGNORED);
ctx.asyncTaskFailed(this);
}
}
} catch (final IOException e) {
this.getLogger().warn("Removing failing task - unable to retry: " + this, e);
this.setFinishedState(ResourceState.IGNORED);
ctx.asyncTaskFailed(this);
} finally {
if ( is != null ) {
try {
is.close();
} catch (final IOException ignore) {}
}
}
}
}
@Override
public boolean isAsynchronousTask() {
return true;
}
@Override
public String getSortKey() {
if ( getResource() == null ) {
return SYSTEM_BUNDLE_UPDATE_ORDER;
}
return BUNDLE_UPDATE_ORDER + getResource().getURL();
}
}