| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.alibaba.dubbo.rpc.cluster; |
| |
| |
| import com.alibaba.dubbo.common.Constants; |
| import com.alibaba.dubbo.common.URL; |
| import com.alibaba.dubbo.rpc.Invocation; |
| import com.alibaba.dubbo.rpc.Invoker; |
| import com.alibaba.dubbo.rpc.Result; |
| import com.alibaba.dubbo.rpc.RpcException; |
| import com.alibaba.dubbo.rpc.RpcInvocation; |
| import com.alibaba.dubbo.rpc.RpcResult; |
| import com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker; |
| |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import static org.mockito.BDDMockito.given; |
| import static org.mockito.Mockito.mock; |
| |
| @SuppressWarnings("unchecked") |
| public class StickyTest { |
| |
| private List<Invoker<StickyTest>> invokers = new ArrayList<Invoker<StickyTest>>(); |
| |
| |
| private Invoker<StickyTest> invoker1 = mock(Invoker.class); |
| private Invoker<StickyTest> invoker2 = mock(Invoker.class); |
| private RpcInvocation invocation; |
| private Directory<StickyTest> dic; |
| private Result result = new RpcResult(); |
| private StickyClusterInvoker<StickyTest> clusterinvoker = null; |
| private URL url = URL.valueOf("test://test:11/test?" |
| + "&loadbalance=roundrobin" |
| + "&" + Constants.CLUSTER_STICKY_KEY + "=true" |
| ); |
| private int runs = 1; |
| |
| @Before |
| public void setUp() throws Exception { |
| dic = mock(Directory.class); |
| invocation = new RpcInvocation(); |
| |
| given(dic.getUrl()).willReturn(url); |
| given(dic.list(invocation)).willReturn(invokers); |
| given(dic.getInterface()).willReturn(StickyTest.class); |
| |
| invokers.add(invoker1); |
| invokers.add(invoker2); |
| |
| clusterinvoker = new StickyClusterInvoker<StickyTest>(dic); |
| } |
| |
| @Test |
| public void testStickyNoCheck() { |
| int count = testSticky(null, false); |
| System.out.println(count); |
| Assert.assertTrue(count > 0 && count <= runs); |
| } |
| |
| @Test |
| public void testStickyForceCheck() { |
| int count = testSticky(null, true); |
| Assert.assertTrue(count == 0 || count == runs); |
| } |
| |
| @Test |
| public void testMethodStickyNoCheck() { |
| int count = testSticky("method1", false); |
| System.out.println(count); |
| Assert.assertTrue(count > 0 && count <= runs); |
| } |
| |
| @Test |
| public void testMethodStickyForceCheck() { |
| int count = testSticky("method1", true); |
| Assert.assertTrue(count == 0 || count == runs); |
| } |
| |
| @Test |
| public void testMethodsSticky() { |
| for (int i = 0; i < 100; i++) {//Two different methods should always use the same invoker every time. |
| int count1 = testSticky("method1", true); |
| int count2 = testSticky("method2", true); |
| Assert.assertTrue(count1 == count2); |
| } |
| } |
| |
| public int testSticky(String methodName, boolean check) { |
| if (methodName == null) { |
| url = url.addParameter(Constants.CLUSTER_STICKY_KEY, String.valueOf(check)); |
| } else { |
| url = url.addParameter(methodName + "." + Constants.CLUSTER_STICKY_KEY, String.valueOf(check)); |
| } |
| |
| given(invoker1.invoke(invocation)).willReturn(result); |
| given(invoker1.isAvailable()).willReturn(true); |
| given(invoker1.getUrl()).willReturn(url); |
| given(invoker1.getInterface()).willReturn(StickyTest.class); |
| |
| given(invoker2.invoke(invocation)).willReturn(result); |
| given(invoker2.isAvailable()).willReturn(true); |
| given(invoker2.getUrl()).willReturn(url); |
| given(invoker2.getInterface()).willReturn(StickyTest.class); |
| |
| invocation.setMethodName(methodName); |
| |
| int count = 0; |
| for (int i = 0; i < runs; i++) { |
| Assert.assertEquals(null, clusterinvoker.invoke(invocation)); |
| if (invoker1 == clusterinvoker.getSelectedInvoker()) { |
| count++; |
| } |
| } |
| return count; |
| } |
| |
| |
| static class StickyClusterInvoker<T> extends AbstractClusterInvoker<T> { |
| private Invoker<T> selectedInvoker; |
| |
| public StickyClusterInvoker(Directory<T> directory) { |
| super(directory); |
| } |
| |
| public StickyClusterInvoker(Directory<T> directory, URL url) { |
| super(directory, url); |
| } |
| |
| @Override |
| protected Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, |
| LoadBalance loadbalance) throws RpcException { |
| Invoker<T> invoker = select(loadbalance, invocation, invokers, null); |
| selectedInvoker = invoker; |
| return null; |
| } |
| |
| public Invoker<T> getSelectedInvoker() { |
| return selectedInvoker; |
| } |
| } |
| } |