/**
* 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.flume.node;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import com.google.common.base.Charsets;
import junit.framework.Assert;
import org.apache.commons.io.IOUtils;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.apache.curator.test.TestingServer;
import org.apache.curator.utils.EnsurePath;
import org.apache.flume.conf.FlumeConfiguration;
import org.apache.flume.conf.FlumeConfigurationError;
import org.junit.After;
import org.junit.Before;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
public abstract class TestAbstractZooKeeperConfigurationProvider {
private static final String FLUME_CONF_FILE = "flume-conf.properties";
protected static final String AGENT_NAME = "a1";
protected static final String AGENT_PATH =
AbstractZooKeeperConfigurationProvider.DEFAULT_ZK_BASE_PATH
+ "/" + AGENT_NAME;
protected TestingServer zkServer;
protected CuratorFramework client;
@Before
public void setUp() throws Exception {
zkServer = new TestingServer();
client = CuratorFrameworkFactory
.newClient("localhost:" + zkServer.getPort(),
new ExponentialBackoffRetry(1000, 3));
client.start();
EnsurePath ensurePath = new EnsurePath(AGENT_PATH);
ensurePath.ensure(client.getZookeeperClient());
doSetUp();
}
protected abstract void doSetUp() throws Exception;
@After
public void tearDown() throws Exception {
doTearDown();
zkServer.close();
client.close();
}
protected abstract void doTearDown() throws Exception;
protected void addData() throws Exception {
Reader in = new InputStreamReader(getClass().getClassLoader()
.getResourceAsStream(FLUME_CONF_FILE), Charsets.UTF_8);
try {
String config = IOUtils.toString(in);
client.setData().forPath(AGENT_PATH, config.getBytes());
} finally {
in.close();
}
}
protected void verifyProperties(AbstractConfigurationProvider cp) {
FlumeConfiguration configuration = cp.getFlumeConfiguration();
Assert.assertNotNull(configuration);
/*
* Test the known errors in the file
*/
List<String> expected = Lists.newArrayList();
expected.add("host5 CONFIG_ERROR");
expected.add("host5 INVALID_PROPERTY");
expected.add("host4 CONFIG_ERROR");
expected.add("host4 CONFIG_ERROR");
expected.add("host4 PROPERTY_VALUE_NULL");
expected.add("host4 PROPERTY_VALUE_NULL");
expected.add("host4 PROPERTY_VALUE_NULL");
expected.add("host4 AGENT_CONFIGURATION_INVALID");
expected.add("ch2 ATTRS_MISSING");
expected.add("host3 CONFIG_ERROR");
expected.add("host3 PROPERTY_VALUE_NULL");
expected.add("host3 AGENT_CONFIGURATION_INVALID");
expected.add("host2 PROPERTY_VALUE_NULL");
expected.add("host2 AGENT_CONFIGURATION_INVALID");
List<String> actual = Lists.newArrayList();
for (FlumeConfigurationError error : configuration
.getConfigurationErrors()) {
actual.add(error.getComponentName() + " "
+ error.getErrorType().toString());
}
Collections.sort(expected);
Collections.sort(actual);
Assert.assertEquals(expected, actual);
FlumeConfiguration.AgentConfiguration agentConfiguration = configuration
.getConfigurationFor("host1");
Assert.assertNotNull(agentConfiguration);
Set<String> sources = Sets.newHashSet("source1");
Set<String> sinks = Sets.newHashSet("sink1");
Set<String> channels = Sets.newHashSet("channel1");
Assert.assertEquals(sources, agentConfiguration.getSourceSet());
Assert.assertEquals(sinks, agentConfiguration.getSinkSet());
Assert.assertEquals(channels, agentConfiguration.getChannelSet());
}
}