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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* ================================================================================
* Licensed 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.core.engine.executor.context;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
import org.onap.policy.apex.model.basicmodel.service.ModelService;
import org.onap.policy.apex.model.policymodel.concepts.AxState;
import org.onap.policy.apex.model.policymodel.concepts.AxTasks;
/**
* The Class AxStateFacade acts as a facade into the AxState class so that task logic can easily
* access information in an AxState instance.
*
* @author Sven van der Meer (sven.van.der.meer@ericsson.com)
*/
public class AxStateFacade {
// CHECKSTYLE:OFF: checkstyle:visibilityModifier Logic has access to this field
/** The full definition information for the state. */
public final AxState state;
// CHECKSTYLE:ON: checkstyle:visibilityModifier
/**
* Instantiates a new AxState facade.
*
* @param state the state for which a facade is being presented
*/
public AxStateFacade(final AxState state) {
this.state = state;
}
/**
* Gets the default task key of the state.
*
* @return the default task key
*/
public AxArtifactKey getDefaultTaskKey() {
return state.getDefaultTask();
}
/**
* Gets the ID of the state.
*
* @return the ID
*/
public String getId() {
return state.getKey().getId();
}
/**
* Gets the name of the state.
*
* @return the state name
*/
public String getStateName() {
return state.getKey().getLocalName();
}
/**
* Check if a task is defined for a given task name on a state and, if so, return its key.
*
* @param taskName the name of the task to get
* @return the task key or null if it does not exist
*/
public AxArtifactKey getTaskKey(final String taskName) {
if (taskName == null) {
return null;
}
return ModelService.getModel(AxTasks.class).get(taskName).getKey();
}
/**
* Check if a task is defined for a given task name on a state and, if so, return its key.
*
* @return unmodifiable list of names of tasks available
*/
public List<String> getTaskNames() {
final Set<AxArtifactKey> tasks = state.getTaskReferences().keySet();
final List<String> ret = new ArrayList<>(tasks.size());
for (final AxArtifactKey task : tasks) {
ret.add(task.getName());
}
return Collections.unmodifiableList(ret);
}
}
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