Quelle  Test919.java

/*
 * Copyright (C) 2016 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 art;

import java.util.function.Consumer;
import java.util.Base64;

public class Test919 {
    static class Transform {
        private Consumer<String> reporter;
        public Transform(Consumer<String> reporter) {
            this.reporter = reporter;
        }

        private void Start() {
            reporter.accept("hello - private");
        }

        private void Finish() {
            reporter.accept("goodbye - private");
        }

        public void sayHi(Runnable r) {
            reporter.accept("Pre Start private method call");
            Start();
            reporter.accept("Post Start private method call");
            r.run();
            reporter.accept("Pre Finish private method call");
            Finish();
            reporter.accept("Post Finish private method call");
        }
    }


    // What follows is the base64 encoded representation of the following class:
    //
    // import java.util.function.Consumer;
    //
    // static class Transform {
    //   private Consumer<String> reporter;
    //   public Transform(Consumer<String> reporter) {
    //     this.reporter = reporter;
    //   }
    //
    //   private void Start() {
    //     reporter.accept("Hello - private - Transformed");
    //   }
    //
    //   private void Finish() {
    //     reporter.accept("Goodbye - private - Transformed");
    //   }
    //
    //   public void sayHi(Runnable r) {
    //     reporter.accept("pre Start private method call - Transformed");
    //     Start();
    //     reporter.accept("post Start private method call - Transformed");
    //     r.run();
    //     reporter.accept("pre Finish private method call - Transformed");
    //     Finish();
    //     reporter.accept("post Finish private method call - Transformed");
    //   }
    // }
    private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
            "yv66vgAAADQAOAoADgAfCQANACAIACELACIAIwgAJAgAJQoADQAmCAAnCwAoACkIACoKAA0AKwgA" +
            "LAcALgcAMQEACHJlcG9ydGVyAQAdTGphdmEvdXRpbC9mdW5jdGlvbi9Db25zdW1lcjsBAAlTaWdu" +
            "YXR1cmUBADFMamF2YS91dGlsL2Z1bmN0aW9uL0NvbnN1bWVyPExqYXZhL2xhbmcvU3RyaW5nOz47" +
            "AQAGPGluaXQ+AQAgKExqYXZhL3V0aWwvZnVuY3Rpb24vQ29uc3VtZXI7KVYBAARDb2RlAQAPTGlu" +
            "ZU51bWJlclRhYmxlAQA0KExqYXZhL3V0aWwvZnVuY3Rpb24vQ29uc3VtZXI8TGphdmEvbGFuZy9T" +
            "dHJpbmc7PjspVgEABVN0YXJ0AQADKClWAQAGRmluaXNoAQAFc2F5SGkBABcoTGphdmEvbGFuZy9S" +
            "dW5uYWJsZTspVgEAClNvdXJjZUZpbGUBAAxUZXN0OTE5LmphdmEMABMAGQwADwAQAQAdSGVsbG8g" +
            "LSBwcml2YXRlIC0gVHJhbnNmb3JtZWQHADIMADMANAEAH0dvb2RieWUgLSBwcml2YXRlIC0gVHJh" +
            "bnNmb3JtZWQBACtwcmUgU3RhcnQgcHJpdmF0ZSBtZXRob2QgY2FsbCAtIFRyYW5zZm9ybWVkDAAY" +
            "ABkBACxwb3N0IFN0YXJ0IHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAcANQwANgAZ" +
            "AQAscHJlIEZpbmlzaCBwcml2YXRlIG1ldGhvZCBjYWxsIC0gVHJhbnNmb3JtZWQMABoAGQEALXBv" +
            "c3QgRmluaXNoIHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAcANwEAFWFydC9UZXN0" +
            "OTE5JFRyYW5zZm9ybQEACVRyYW5zZm9ybQEADElubmVyQ2xhc3NlcwEAEGphdmEvbGFuZy9PYmpl" +
            "Y3QBABtqYXZhL3V0aWwvZnVuY3Rpb24vQ29uc3VtZXIBAAZhY2NlcHQBABUoTGphdmEvbGFuZy9P" +
            "YmplY3Q7KVYBABJqYXZhL2xhbmcvUnVubmFibGUBAANydW4BAAthcnQvVGVzdDkxOQAgAA0ADgAA" +
            "AAEAAgAPABAAAQARAAAAAgASAAQAAQATABQAAgAVAAAAKgACAAIAAAAKKrcAASortQACsQAAAAEA" +
            "FgAAAA4AAwAAAAgABAAJAAkACgARAAAAAgAXAAIAGAAZAAEAFQAAACgAAgABAAAADCq0AAISA7kA" +
            "BAIAsQAAAAEAFgAAAAoAAgAAAA0ACwAOAAIAGgAZAAEAFQAAACgAAgABAAAADCq0AAISBbkABAIA" +
            "sQAAAAEAFgAAAAoAAgAAABEACwASAAEAGwAcAAEAFQAAAG8AAgACAAAAOyq0AAISBrkABAIAKrcA" +
            "Byq0AAISCLkABAIAK7kACQEAKrQAAhIKuQAEAgAqtwALKrQAAhIMuQAEAgCxAAAAAQAWAAAAIgAI" +
            "AAAAFQALABYADwAXABoAGAAgABkAKwAaAC8AGwA6ABwAAgAdAAAAAgAeADAAAAAKAAEADQAtAC8A" +
            "CA==");
    private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
            "ZGV4CjAzNQBeEZYBAAAAAAAAAAAAAAAAAAAAAAAAAACMBgAAcAAAAHhWNBIAAAAAAAAAAMgFAAAi" +
            "AAAAcAAAAAkAAAD4AAAABAAAABwBAAABAAAATAEAAAcAAABUAQAAAQAAAIwBAADgBAAArAEAAKwB" +
            "AACvAQAAsgEAALoBAAC+AQAAxAEAAMwBAADtAQAADAIAACUCAAA0AgAAWAIAAHgCAACXAgAAqwIA" +
            "AMECAADVAgAA8wIAABIDAAAZAwAAJwMAADIDAAA1AwAAOQMAAEEDAABOAwAAVAMAAIMDAACxAwAA" +
            "3wMAAAwEAAAWBAAAGwQAACIEAAAIAAAACQAAAAoAAAALAAAADAAAAA0AAAAOAAAAEQAAABUAAAAV" +
            "AAAACAAAAAAAAAAWAAAACAAAADQEAAAWAAAACAAAADwEAAAWAAAACAAAACwEAAAAAAcAHgAAAAAA" +
            "AwACAAAAAAAAAAUAAAAAAAAAEgAAAAAAAgAgAAAABQAAAAIAAAAGAAAAHwAAAAcAAQAXAAAAAAAA" +
            "AAAAAAAFAAAAAAAAABMAAACoBQAARAUAAAAAAAABKAABPAAGPGluaXQ+AAI+OwAEPjspVgAGRmlu" +
            "aXNoAB9Hb29kYnllIC0gcHJpdmF0ZSAtIFRyYW5zZm9ybWVkAB1IZWxsbyAtIHByaXZhdGUgLSBU" +
            "cmFuc2Zvcm1lZAAXTGFydC9UZXN0OTE5JFRyYW5zZm9ybTsADUxhcnQvVGVzdDkxOTsAIkxkYWx2" +
            "aWsvYW5ub3RhdGlvbi9FbmNsb3NpbmdDbGFzczsAHkxkYWx2aWsvYW5ub3RhdGlvbi9Jbm5lckNs" +
            "YXNzOwAdTGRhbHZpay9hbm5vdGF0aW9uL1NpZ25hdHVyZTsAEkxqYXZhL2xhbmcvT2JqZWN0OwAU" +
            "TGphdmEvbGFuZy9SdW5uYWJsZTsAEkxqYXZhL2xhbmcvU3RyaW5nOwAcTGphdmEvdXRpbC9mdW5j" +
            "dGlvbi9Db25zdW1lcgAdTGphdmEvdXRpbC9mdW5jdGlvbi9Db25zdW1lcjsABVN0YXJ0AAxUZXN0" +
            "OTE5LmphdmEACVRyYW5zZm9ybQABVgACVkwABmFjY2VwdAALYWNjZXNzRmxhZ3MABG5hbWUALXBv" +
            "c3QgRmluaXNoIHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAAscG9zdCBTdGFydCBw" +
            "cml2YXRlIG1ldGhvZCBjYWxsIC0gVHJhbnNmb3JtZWQALHByZSBGaW5pc2ggcHJpdmF0ZSBtZXRo" +
            "b2QgY2FsbCAtIFRyYW5zZm9ybWVkACtwcmUgU3RhcnQgcHJpdmF0ZSBtZXRob2QgY2FsbCAtIFRy" +
            "YW5zZm9ybWVkAAhyZXBvcnRlcgADcnVuAAVzYXlIaQAFdmFsdWUAAAAAAQAAAAcAAAABAAAABQAA" +
            "AAEAAAAGAAAACAEABw4BAw8BAg8AEQAHDgEIDwANAAcOAQgPABUBAAcOAQgPAQMPAQgPAQMPAQgP" +
            "AQMPAQgPAAACAAIAAQAAAEQEAAAGAAAAcBAEAAAAWwEAAA4AAwABAAIAAABQBAAACQAAAFQgAAAb" +
            "AQYAAAByIAYAEAAOAAAAAwABAAIAAABYBAAACQAAAFQgAAAbAQcAAAByIAYAEAAOAAAABAACAAIA" +
            "AABgBAAAKgAAAFQgAAAbAR0AAAByIAYAEABwEAIAAgBUIAAAGwEbAAAAciAGABAAchAFAAMAVCAA" +
            "ABsBHAAAAHIgBgAQAHAQAQACAFQgAAAbARoAAAByIAYAEAAOAAABAwEAAgCBgAT8CAECmAkBArwJ" +
            "AwHgCQICASEYAQIDAhgECBkXFAIEASEcBBcQFwEXDxcDAgQBIRwFFwAXEBcBFw8XBAAAAAIAAABc" +
            "BQAAYgUAAAEAAABrBQAAAQAAAHkFAACMBQAAAQAAAAEAAAAAAAAAAAAAAJgFAAAAAAAAoAUAABAA" +
            "AAAAAAAAAQAAAAAAAAABAAAAIgAAAHAAAAACAAAACQAAAPgAAAADAAAABAAAABwBAAAEAAAAAQAA" +
            "AEwBAAAFAAAABwAAAFQBAAAGAAAAAQAAAIwBAAACIAAAIgAAAKwBAAABEAAAAwAAACwEAAADIAAA" +
            "BAAAAEQEAAABIAAABAAAAHwEAAAAIAAAAQAAAEQFAAAEIAAABAAAAFwFAAADEAAAAwAAAIwFAAAG" +
            "IAAAAQAAAKgFAAAAEAAAAQAAAMgFAAA=");

    // A class that we can use to keep track of the output of this test.
    private static class TestWatcher implements Consumer<String> {
        private StringBuilder sb;
        public TestWatcher() {
            sb = new StringBuilder();
        }

        @Override
        public void accept(String s) {
            sb.append(s);
            sb.append('\n');
        }

        public String getOutput() {
            return sb.toString();
        }
    }

    public static void run() {
        Redefinition.setTestConfiguration(Redefinition.Config.COMMON_REDEFINE);
        TestWatcher w = new TestWatcher();
        doTest(new Transform(w), w);
    }

    public static void doTest(Transform t, TestWatcher w) {
        Runnable do_redefinition = () -> {
            w.accept("transforming calling function");
            Redefinition.doCommonClassRedefinition(Transform.class, CLASS_BYTES, DEX_BYTES);
        };
        // This just prints something out to show we are running the Runnable.
        Runnable say_nothing = () -> { w.accept("Not doing anything here"); };

        // Try and redefine.
        t.sayHi(say_nothing);
        t.sayHi(do_redefinition);
        t.sayHi(say_nothing);

        // Print output of last run.
        System.out.print(w.getOutput());
    }
}