| /* |
| * 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 org.apache.htrace.core; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| public class TestSpanReceiverBuilder { |
| private static final Log LOG = |
| LogFactory.getLog(TestSpanReceiverBuilder.class); |
| |
| private List<SpanReceiver> createSpanReceivers(String classes) { |
| Tracer tracer = new Tracer.Builder(). |
| name("MyTracer"). |
| tracerPool(new TracerPool("createSpanReceivers")). |
| conf(HTraceConfiguration.fromKeyValuePairs( |
| "span.receiver.classes", classes)). |
| build(); |
| SpanReceiver[] receivers = tracer.getTracerPool().getReceivers(); |
| tracer.close(); |
| LinkedList<SpanReceiver> receiverList = new LinkedList<SpanReceiver>(); |
| for (SpanReceiver item: receivers) { |
| receiverList.add(item); |
| } |
| return receiverList; |
| } |
| |
| @Test |
| public void TestCreateStandardSpanReceivers() { |
| List<SpanReceiver> receivers; |
| receivers = createSpanReceivers(""); |
| Assert.assertTrue(receivers.isEmpty()); |
| receivers = createSpanReceivers("POJOSpanReceiver"); |
| Assert.assertTrue(receivers.get(0).getClass().getName(). |
| equals("org.apache.htrace.core.POJOSpanReceiver")); |
| receivers = createSpanReceivers( |
| "org.apache.htrace.core.StandardOutSpanReceiver"); |
| Assert.assertTrue(receivers.get(0).getClass().getName(). |
| equals("org.apache.htrace.core.StandardOutSpanReceiver")); |
| receivers = createSpanReceivers( |
| "POJOSpanReceiver;StandardOutSpanReceiver"); |
| Assert.assertEquals(2, receivers.size()); |
| for (Iterator<SpanReceiver> iter = receivers.iterator(); iter.hasNext();) { |
| SpanReceiver receiver = iter.next(); |
| if (receiver.getClass().getName().equals( |
| "org.apache.htrace.core.POJOSpanReceiver")) { |
| iter.remove(); |
| break; |
| } |
| } |
| for (Iterator<SpanReceiver> iter = receivers.iterator(); iter.hasNext();) { |
| SpanReceiver receiver = iter.next(); |
| if (receiver.getClass().getName().equals( |
| "org.apache.htrace.core.StandardOutSpanReceiver")) { |
| iter.remove(); |
| break; |
| } |
| } |
| Assert.assertEquals(0, receivers.size()); |
| } |
| |
| public static class GoodSpanReceiver extends SpanReceiver { |
| public GoodSpanReceiver(HTraceConfiguration conf) { |
| } |
| |
| @Override |
| public void receiveSpan(Span span) { |
| } |
| |
| @Override |
| public void close() throws IOException { |
| } |
| } |
| |
| public static class BadSpanReceiver extends SpanReceiver { |
| public BadSpanReceiver(HTraceConfiguration conf) { |
| throw new RuntimeException("Can't create BadSpanReceiver"); |
| } |
| |
| @Override |
| public void receiveSpan(Span span) { |
| } |
| |
| @Override |
| public void close() throws IOException { |
| } |
| } |
| |
| /** |
| * Test trying to create a SpanReceiver that experiences an error in the |
| * constructor. |
| */ |
| @Test |
| public void testGetSpanReceiverWithConstructorError() throws Exception { |
| List<SpanReceiver> receivers; |
| receivers = createSpanReceivers( |
| GoodSpanReceiver.class.getName()); |
| Assert.assertEquals(1, receivers.size()); |
| Assert.assertTrue(receivers.get(0).getClass().getName(). |
| contains("GoodSpanReceiver")); |
| receivers = createSpanReceivers( |
| BadSpanReceiver.class.getName()); |
| Assert.assertEquals(0, receivers.size()); |
| } |
| } |