BasicMisc.java

/*
 * Copyright 2012-2017 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 org.glowroot.agent.weaving.targets;

import java.lang.annotation.Retention;
import java.lang.reflect.Method;

import javax.annotation.Nullable;

import org.glowroot.agent.weaving.SomeAspect.SomeClass;
import org.glowroot.agent.weaving.SomeAspect.SomeMethod;

import static java.lang.annotation.RetentionPolicy.RUNTIME;

@SomeClass
public class BasicMisc extends SuperBasicMisc implements Misc, Misc2, Misc3, SubMisc2 {

    // the cascading constructor is for testing that MixinInit is called exactly once
    public BasicMisc() {
        this(null);
    }

    public BasicMisc(@SuppressWarnings("unused") Object dummy) {
        // call some junk to test PatchedAdviceAdapter
        new Object().toString();
        String.valueOf("abc");
        new Object[0].hashCode();
    }

    // Misc implementation
    @Override
    @TestAnnotation
    public void execute1() {
        // do some stuff that can be intercepted
        new BasicMisc();
        withInnerArg(null);
        Method method;
        try {
            method = BasicMisc.class.getDeclaredMethod("execute1");
        } catch (Exception e) {
            throw new AssertionError(e);
        }
        if (!method.isAnnotationPresent(TestAnnotation.class)) {
            throw new AssertionError();
        }
    }

    @Override
    @SomeMethod
    public String executeWithReturn() {
        return "xyz";
    }

    @Override
    public final void executeWithArgs(String one, int two) {
        one = "reassigned param local";
        two = 22222222;
    }

    // Misc2 implementation
    @Override
    public void execute2() {}

    // Misc3 implementation
    @Override
    public BasicMisc identity(BasicMisc misc) {
        return misc;
    }

    @Override
    void superBasic() {}

    private void withInnerArg(@SuppressWarnings("unused") @Nullable Inner inner) {}

    private static class Inner {}

    public static class InnerMisc implements Misc {

        @Override
        public void execute1() {}

        @Override
        public @Nullable String executeWithReturn() {
            return null;
        }

        @Override
        public void executeWithArgs(String one, int two) {}
    }

    @Retention(RUNTIME)
    public @interface TestAnnotation {}

    @Override
    public void sub() {}
}