AbstractTypeDefinitionFactory.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.
 */

package org.kie.workbench.common.stunner.core.factory.definition;

import java.util.Set;

import org.kie.workbench.common.stunner.core.definition.adapter.binding.BindableAdapterUtils;

public abstract class AbstractTypeDefinitionFactory<T> implements TypeDefinitionFactory<T> {

    public abstract Set<Class<? extends T>> getAcceptedClasses();

    @Override
    public boolean accepts(final Class<? extends T> type) {
        return getAcceptedClasses().contains(type);
    }

    @Override
    public boolean accepts(final String id) {
        return getClass(id) != null;
    }

    @Override
    public T build(final String id) {
        final Class<? extends T> clazz = getClass(id);
        if (null != clazz) {
            return build(clazz);
        }
        return null;
    }

    protected Class<? extends T> getClass(final String id) {
        final Set<Class<? extends T>> acceptedClasses = getAcceptedClasses();
        if (null != acceptedClasses && !acceptedClasses.isEmpty()) {
            for (final Class<? extends T> clazz : acceptedClasses) {
                if (BindableAdapterUtils.getGenericClassName(clazz).equals(id)) {
                    return clazz;
                }
            }
        }
        return null;
    }
}