/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.patching.management;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.patching.Constants;
import org.jboss.as.patching.installation.AddOn;
import org.jboss.as.patching.installation.InstalledIdentity;
import org.jboss.as.patching.installation.Layer;
import org.jboss.as.patching.installation.PatchableTarget;
import org.jboss.as.patching.logging.PatchLogger;
import org.jboss.dmr.ModelNode;
/**
* @author Alexey Loubyansky
*/
abstract class ElementProviderAttributeReadHandler extends PatchStreamResourceOperationStepHandler {
@Override
protected String getPatchStreamName(OperationContext context) {
final PathAddress currentAddress = context.getCurrentAddress();
final PathElement stream = currentAddress.getElement(currentAddress.size() - 2);
final String streamName;
if(Constants.PATCH_STREAM.equals(stream.getKey())) {
streamName = stream.getValue();
} else {
streamName = null;
}
return streamName;
}
@Override
protected void execute(final OperationContext context, final ModelNode operation, final InstalledIdentity installedIdentity) throws OperationFailedException {
final PathAddress address = PathAddress.pathAddress(operation.require(ModelDescriptionConstants.OP_ADDR));
final PathElement element = address.getLastElement();
final String name = element.getValue();
PatchableTarget target = getProvider(name, installedIdentity);
final ModelNode result = context.getResult();
handle(result, target);
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
protected abstract PatchableTarget getProvider(final String name, final InstalledIdentity identity) throws OperationFailedException;
abstract void handle(ModelNode result, PatchableTarget layer) throws OperationFailedException;
/**
* @author Alexey Loubyansky
*/
abstract static class AddOnAttributeReadHandler extends ElementProviderAttributeReadHandler {
@Override
protected PatchableTarget getProvider(final String name, final InstalledIdentity identity) throws OperationFailedException {
final AddOn target = identity.getAddOn(name);
if (target == null) {
throw new OperationFailedException(PatchLogger.ROOT_LOGGER.noSuchLayer(name).getLocalizedMessage());
}
return target;
}
}
/**
* @author Alexey Loubyansky
*/
abstract static class LayerAttributeReadHandler extends ElementProviderAttributeReadHandler {
@Override
protected Layer getProvider(final String name, final InstalledIdentity identity) throws OperationFailedException {
final Layer target = identity.getLayer(name);
if (target == null) {
throw new OperationFailedException(PatchLogger.ROOT_LOGGER.noSuchLayer(name).getLocalizedMessage());
}
return target;
}
}
}