package com.netflix.hystrix.contrib.javanica;
import com.google.common.base.Function;
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.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 void assertExecutedCommands(String... commands) {
Collection<HystrixCommand<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getExecutedCommands();
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<HystrixCommand<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getExecutedCommands();
return getExecutedCommandsKeys(Lists.newArrayList(executedCommands));
}
public static List<String> getExecutedCommandsKeys(List<HystrixCommand<?>> executedCommands) {
return Lists.transform(executedCommands, new Function<HystrixCommand<?>, String>() {
@Nullable
@Override
public String apply(@Nullable HystrixCommand<?> input) {
return input.getCommandKey().name();
}
});
}
public static HystrixCommand getHystrixCommandByKey(String key) {
HystrixCommand hystrixCommand = null;
Collection<HystrixCommand<?>> executedCommands =
HystrixRequestLog.getCurrentRequest().getExecutedCommands();
for (HystrixCommand command : executedCommands) {
if (command.getCommandKey().name().equals(key)) {
hystrixCommand = command;
break;
}
}
return hystrixCommand;
}
}