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AbstractTypedSubstitutionStrategy.java
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AbstractTypedSubstitutionStrategy.java
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/*
* Copyright (c) 2017 Bosch Software Innovations GmbH.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/epl-2.0/index.php
*
* Contributors:
* Bosch Software Innovations GmbH - initial contribution
*/
package org.eclipse.ditto.services.concierge.enforcement.placeholders.strategies;
import static java.util.Objects.requireNonNull;
import org.eclipse.ditto.model.base.headers.WithDittoHeaders;
/**
* Abstract base class for instances of {@link SubstitutionStrategy} which match on a concrete subtype of
* {@link WithDittoHeaders}.
* @param <T> the subtype of {@link WithDittoHeaders} handled by this strategy.
*/
abstract class AbstractTypedSubstitutionStrategy<T extends WithDittoHeaders> implements SubstitutionStrategy<T> {
private final Class<T> type;
AbstractTypedSubstitutionStrategy(final Class<T> type) {
this.type = requireNonNull(type);
}
@Override
public boolean matches(final WithDittoHeaders withDittoHeaders) {
return type.isAssignableFrom(withDittoHeaders.getClass());
}
}