io.jmnarloch.spring.boot.rxjava.subscribable.Subscribables.java Source code

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/**
 * Copyright (c) 2015-2016 the original author or authors
 *
 * 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 io.jmnarloch.spring.boot.rxjava.subscribable;

import org.springframework.util.Assert;
import rx.Observable;
import rx.Single;

/**
 * A convenient utility class that allows to wrap a RxJava type like {@link Observable} or {@link Single}
 * into {@link Subscribable}.
 *
 * @author Jakub Narloch
 */
public final class Subscribables {

    private Subscribables() {
    }

    public static Subscribable toSubscribable(Object result) {
        Assert.notNull(result, "Parameter 'result' can not be null");
        if (result instanceof Observable) {
            return new ObservableSubscribable((Observable) result);
        } else if (result instanceof Single) {
            return new SingleSubscribable((Single) result);
        } else {
            throw new IllegalStateException(
                    String.format("The %s type can not be converted to Subscribable", result.getClass().getName()));
        }
    }
}