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path: root/ui/window/MultiWindowPlayground/kotlinApp/Application/src/main/java/com/android/multiwindowplayground/logger/MessageOnlyLogFilter.kt
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/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * 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 com.android.multiwindowplayground.logger

/**
 * Simple [LogNode] filter, removes everything except the message.
 * Useful for situations like on-screen log output where you don't want a lot of metadata
 * displayed, just easy-to-read message updates as they're happening.
 */
class MessageOnlyLogFilter : LogNode {

    var next: LogNode? = null

    override fun println(priority: Int, tag: String?, msg: String, tr: Throwable?) {
        next?.println(Log.NONE, null, msg, null)
    }

}