org.jitsi.metaconfig.Condition.kt Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jitsi-metaconfig Show documentation

jitsi-metaconfig helps solve the problems around the evolution of configuration properties

The newest version!

/*
 * Copyright @ 2018 - present 8x8, Inc.
 *
 * 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.jitsi.metaconfig

/**
 * A guard for whether or not a property can be accessed based on the return
 * value of the given predicate.
 */
data class Condition(
    val context: String,
    private val predicate: () -> Boolean
) {
    fun isMet(): Boolean {
        return try {
            predicate()
        } catch (t: Throwable) {
            // Any exception while evaluating the predicate results in the condition failing
            false
        }
    }
}

val AlwaysEnabled = Condition("") { true }