Merge branch 'master' into fix/restemplate-plugin-issue

     */

    private void findBackupServer() {

        selectedServer++;

        if (selectedServer == serverList.length) {

        if (selectedServer >= serverList.length) {

            selectedServer = 0;

        }

    }

    /**

     * Try to sleep, and ignore the {@link InterruptedException}

     *

     * @param millis the length of time to sleep in milliseconds

     */

    private void try2Sleep(long millis) {

        try {

            Thread.sleep(millis);

        } catch (InterruptedException e) {

        if (serverList.length == 0) {

            selectedServer = -1;

        }

    }

}

<?xml version="1.0" encoding="UTF-8"?>

<!--

  ~ Copyright 2017, OpenSkywalking Organization 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

  ~

  ~ 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.

  ~

  ~ Project repository: https://github.com/OpenSkywalking/skywalking

  -->

<project xmlns="http://maven.apache.org/POM/4.0.0"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <parent>

        <artifactId>spring-plugins</artifactId>

        <groupId>org.skywalking</groupId>

        <version>3.2.5-2017</version>

    </parent>

    <modelVersion>4.0.0</modelVersion>

    <artifactId>apm-spring-core-patch</artifactId>

    <name>core-patch</name>

    <dependencies>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aop</artifactId>

            <version>3.2.9.RELEASE</version>

            <scope>provided</scope>

        </dependency>

    </dependencies>

</project>

/*

 * Copyright 2017, OpenSkywalking Organization 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

 *

 * 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.

 *

 * Project repository: https://github.com/OpenSkywalking/skywalking

 */

package org.skywalking.apm.plugin.spring.patch;

import java.lang.reflect.Method;

import org.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance;

import org.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodsAroundInterceptor;

import org.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult;

import org.springframework.aop.framework.AdvisedSupport;

/**

 * {@link CreateAopProxyInterceptor} check that the bean has been implement {@link EnhancedInstance}. <p/>

 * if yes, true will be returned.

 *

 * @author zhang xin

 */

public class CreateAopProxyInterceptor implements InstanceMethodsAroundInterceptor {

    @Override

    public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes,

        MethodInterceptResult result) throws Throwable {

    }

    @Override

    public Object afterMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes,

        Object ret) throws Throwable {

        AdvisedSupport advisedSupport = (AdvisedSupport)allArguments[0];

        if (EnhancedInstance.class.isAssignableFrom(advisedSupport.getTargetClass())) {

            return true;

        }

        return ret;

    }

    @Override public void handleMethodException(EnhancedInstance objInst, Method method, Object[] allArguments,

        Class<?>[] argumentsTypes, Throwable t) {

    }

}

/*

 * Copyright 2017, OpenSkywalking Organization 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

 *

 * 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.

 *

 * Project repository: https://github.com/OpenSkywalking/skywalking

 */

package org.skywalking.apm.plugin.spring.patch.define;

import net.bytebuddy.description.method.MethodDescription;

import net.bytebuddy.matcher.ElementMatcher;

import org.skywalking.apm.agent.core.plugin.interceptor.ConstructorInterceptPoint;

import org.skywalking.apm.agent.core.plugin.interceptor.InstanceMethodsInterceptPoint;

import org.skywalking.apm.agent.core.plugin.interceptor.enhance.ClassInstanceMethodsEnhancePluginDefine;

import org.skywalking.apm.agent.core.plugin.match.ClassMatch;

import static net.bytebuddy.matcher.ElementMatchers.named;

import static org.skywalking.apm.agent.core.plugin.match.NameMatch.byName;

/**

 * {@link AopProxyFactoryInstrumentation} indicate that spring core patch plugin intercepts the {@link

 * org.springframework.aop.framework.DefaultAopProxyFactory#hasNoUserSuppliedProxyInterfaces} method by using {@link

 * org.skywalking.apm.plugin.spring.patch.CreateAopProxyInterceptor} class.

 *

 * @author zhangxin

 */

public class AopProxyFactoryInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {

    private static final String ENHANCE_CLASS = "org.springframework.aop.framework.DefaultAopProxyFactory";

    public static final String ENHANCE_METHOD = "hasNoUserSuppliedProxyInterfaces";

    public static final String INTERCEPT_CLASS = "org.skywalking.apm.plugin.spring.patch.CreateAopProxyInterceptor";

    @Override protected final ConstructorInterceptPoint[] getConstructorsInterceptPoints() {

        return new ConstructorInterceptPoint[0];

    }

    @Override protected final InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {

        return new InstanceMethodsInterceptPoint[] {

            new InstanceMethodsInterceptPoint() {

                @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {

                    return named(ENHANCE_METHOD);

                }

                @Override public String getMethodsInterceptor() {

                    return INTERCEPT_CLASS;

                }

                @Override public boolean isOverrideArgs() {

                    return false;

                }

            }

        };

    }

    @Override protected ClassMatch enhanceClass() {

        return byName(ENHANCE_CLASS);

    }

}

spring-core-patch=org.skywalking.apm.plugin.spring.patch.define.AopProxyFactoryInstrumentation