/**
* Copyright 2005-2014 Red Hat, Inc.
*
* Red Hat 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 io.fabric8.commands.support;
import io.fabric8.api.FabricRequirements;
import io.fabric8.api.FabricService;
import org.apache.karaf.shell.console.AbstractAction;
/**
*/
public abstract class ChangeRequirementSupport extends AbstractAction {
private final FabricService fabricService;
public ChangeRequirementSupport(FabricService fabricService) {
this.fabricService = fabricService;
}
public FabricService getFabricService() {
return fabricService;
}
@Override
protected Object doExecute() throws Exception {
FabricRequirements requirements = getFabricService().getRequirements();
if (requirements == null) {
requirements = new FabricRequirements();
}
if (updateRequirements(requirements)) {
getFabricService().setRequirements(requirements);
}
return null;
}
/**
* Performs the updates on the requirements, returning true if the requirements are updated.
*/
protected abstract boolean updateRequirements(FabricRequirements requirements);
}