/*
 * Copyright 2021, TeamDev. 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
 *
 * Redistribution and use in source and/or binary forms, with or without
 * modification, must retain the above copyright notice and the following
 * disclaimer.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package io.spine.client;

import com.google.errorprone.annotations.Immutable;
import io.spine.base.EventMessage;
import io.spine.type.TypeUrl;

import static java.lang.String.format;

/**
 * Useful methods for {@link Subscription}.
 */
@Immutable
public interface SubscriptionMixin extends SubscriptionOrBuilder {

    /**
     * Obtains the URL of the target type.
     */
    default TypeUrl targetType() {
        var topic = getTopic();
        var typeAsString = topic.getTarget().getType();
        var result = TypeUrl.parse(typeAsString);
        return result;
    }

    /**
     * Tells if the subscription target is events.
     */
    default boolean ofEvent() {
        var target = targetType();
        var javaClass = target.toJavaClass();
        var result = EventMessage.class.isAssignableFrom(javaClass);
        return result;
    }

    /**
     * Obtains a short printable form of subscription.
     *
     * <p>Standard {@link Subscription#toString()} includes all subscription data and thus its
     * output is too huge to use in short log messages and stack traces.
     *
     * @return a printable {@code String} with core subscription data
     */
    default String toShortString() {
        var id = getId().getValue();
        var type = getTopic().getTarget().getType();
        var result = format("(ID: %s, target: %s)", id, type);
        return result;
    }
}

/*
 * Copyright 2021, TeamDev. 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
 *
 * Redistribution and use in source and/or binary forms, with or without
 * modification, must retain the above copyright notice and the following
 * disclaimer.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package io.spine.client;

import com.google.errorprone.annotations.Immutable;
import io.spine.base.EventMessage;
import io.spine.type.TypeUrl;

import static java.lang.String.format;

/**
 * Useful methods for {@link Subscription}.
 */
@Immutable
public interface SubscriptionMixin extends SubscriptionOrBuilder {

    /**
     * Obtains the URL of the target type.
     */
    default TypeUrl targetType() {
        var topic = getTopic();
        var typeAsString = topic.getTarget().getType();
        var result = TypeUrl.parse(typeAsString);
        return result;
    }

    /**
     * Tells if the subscription target is events.
     */
    default boolean ofEvent() {
        var target = targetType();
        var javaClass = target.toJavaClass();
        var result = EventMessage.class.isAssignableFrom(javaClass);
        return result;
    }

    /**
     * Obtains a short printable form of subscription.
     *
     * <p>Standard {@link Subscription#toString()} includes all subscription data and thus its
     * output is too huge to use in short log messages and stack traces.
     *
     * @return a printable {@code String} with core subscription data
     */
    default String toShortString() {
        var id = getId().getValue();
        var type = getTopic().getTarget().getType();
        var result = format("(ID: `%s`, target: `%s`)", id, type);
        return result;
    }
}

Add the backticks.