/**
* Copyright 2015 Netflix, Inc.
*
* 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.netflix.hystrix.contrib.javanica.test.common;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.netflix.hystrix.HystrixCommand;
import com.netflix.hystrix.HystrixCommandKey;
import com.netflix.hystrix.HystrixCommandMetrics;
import com.netflix.hystrix.HystrixInvokableInfo;
import com.netflix.hystrix.HystrixRequestLog;
import javax.annotation.Nullable;
import java.util.Collection;
import java.util.List;
import static org.junit.Assert.assertTrue;
public class CommonUtils {
public HystrixCommandMetrics getMetrics(String commandKey) {
return HystrixCommandMetrics.getInstance(HystrixCommandKey.Factory.asKey(commandKey));
}
public static HystrixInvokableInfo<?> getLastExecutedCommand() {
Collection<HystrixInvokableInfo<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getAllExecutedCommands();
return Iterables.getLast(executedCommands);
}
public static void assertExecutedCommands(String... commands) {
Collection<HystrixInvokableInfo<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getAllExecutedCommands();
List<String> executedCommandsKeys = getExecutedCommandsKeys(Lists.newArrayList(executedCommands));
for (String cmd : commands) {
assertTrue("command: '" + cmd + "' wasn't executed", executedCommandsKeys.contains(cmd));
}
}
public static List<String> getExecutedCommandsKeys() {
Collection<HystrixInvokableInfo<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getAllExecutedCommands();
return getExecutedCommandsKeys(Lists.newArrayList(executedCommands));
}
public static List<String> getExecutedCommandsKeys(List<HystrixInvokableInfo<?>> executedCommands) {
return Lists.transform(executedCommands, new Function<HystrixInvokableInfo<?>, String>() {
@Nullable
@Override
public String apply(@Nullable HystrixInvokableInfo<?> input) {
return input.getCommandKey().name();
}
});
}
public static HystrixInvokableInfo getHystrixCommandByKey(String key) {
HystrixInvokableInfo hystrixCommand = null;
Collection<HystrixInvokableInfo<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getAllExecutedCommands();
for (HystrixInvokableInfo command : executedCommands) {
if (command.getCommandKey().name().equals(key)) {
hystrixCommand = command;
break;
}
}
return hystrixCommand;
}
}