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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.apex.model.basicmodel.service;
import org.onap.apex.model.basicmodel.concepts.ApexRuntimeException;
import org.onap.policy.apex.model.utilities.Assertions;
/**
* This class defines an abstract parameter class that acts as a base class for all parameters in Apex. The abstract parameter class holds the name of a
* subclass of this abstract parameter class {@link AbstractParameters}. The class of the parameter class is checked at construction and on calls to the
* {@link #getParameterClass()} method.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public abstract class AbstractParameters {
// The name of the parameter subclass
private String parameterClassName = this.getClass().getCanonicalName();
/**
* Constructor, creates a parameter class that must be a subclass of {@link AbstractParameters}.
*
* @param parameterClassName the full canonical class name of the parameter class
*/
public AbstractParameters(final String parameterClassName) {
try {
Assertions.assignableFrom(Class.forName(parameterClassName), AbstractParameters.class);
}
catch (IllegalArgumentException | ClassNotFoundException e) {
throw new ApexRuntimeException(
"class \"" + parameterClassName + "\" not found or not an instance of \"" + this.getClass().getCanonicalName() + "\"", e);
}
}
/**
* Gets the parameter class.
*
* @return the parameter class
*/
@SuppressWarnings("unchecked")
public final Class<? extends AbstractParameters> getParameterClass() {
try {
return (Class<? extends AbstractParameters>) Class.forName(parameterClassName);
}
catch (final ClassNotFoundException e) {
throw new ApexRuntimeException("class not found for parameter class name \"" + parameterClassName + "\"");
}
}
/**
* Gets the parameter class name.
*
* @return the parameter class name
*/
public final String getParameterClassName() {
return parameterClassName;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "AbstractParameters [parameterClassName=" + parameterClassName + "]";
}
}
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