/**
* 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.ambari.server.controller.jmx;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.ambari.server.configuration.ComponentSSLConfiguration;
import org.apache.ambari.server.controller.internal.URLStreamProvider;
public class TestStreamProvider extends URLStreamProvider {
protected static Map<String, String> FILE_MAPPING = new HashMap<>();
static {
FILE_MAPPING.put("50070", "hdfs_namenode_jmx.json");
FILE_MAPPING.put("50075", "hdfs_datanode_jmx.json");
FILE_MAPPING.put("50030", "mapreduce_jobtracker_jmx.json");
FILE_MAPPING.put("50060", "mapreduce_tasktracker_jmx.json");
FILE_MAPPING.put("60010", "hbase_hbasemaster_jmx.json");
FILE_MAPPING.put("60011", "hbase_hbasemaster_jmx_2.json");
FILE_MAPPING.put("8088", "resourcemanager_jmx.json");
FILE_MAPPING.put("8480", "hdfs_journalnode_jmx.json");
FILE_MAPPING.put("8745", "storm_rest_api_jmx.json");
}
private static String NN_HASTATE_ONLY_JMX = "hdfs_namenode_jmx_ha_only.json";
/**
* Delay to simulate response time.
*/
protected final long delay;
private String lastSpec;
private List<String> specs = new ArrayList<>();
private boolean isLastSpecUpdated;
public TestStreamProvider() {
super(1000, 1000, ComponentSSLConfiguration.instance());
delay = 0;
}
public TestStreamProvider(long delay) {
super(1000, 1000, ComponentSSLConfiguration.instance());
this.delay = delay;
}
@Override
public InputStream readFrom(String spec) throws IOException {
specs.add(spec);
if (!isLastSpecUpdated)
lastSpec = spec;
isLastSpecUpdated = false;
String filename = null;
if (spec.endsWith(":50070/jmx?get=Hadoop:service=NameNode,name=FSNamesystem::tag.HAState")) {
filename = NN_HASTATE_ONLY_JMX;
} else {
filename = FILE_MAPPING.get(getPort(spec));
}
if (filename == null) {
throw new IOException("Can't find JMX source for " + spec);
}
if (delay > 0) {
try {
Thread.sleep(delay);
} catch (InterruptedException e) {
// do nothing
}
}
return ClassLoader.getSystemResourceAsStream(filename);
}
public String getLastSpec() {
return lastSpec;
}
public List<String> getSpecs() {
return specs;
}
private String getPort(String spec) {
int colonIndex = spec.indexOf(":", 5);
int slashIndex = spec.indexOf("/", colonIndex);
return spec.substring(colonIndex + 1, slashIndex);
}
@Override
public InputStream readFrom(String spec, String requestMethod, String params) throws IOException {
lastSpec = spec + "?" + params;
isLastSpecUpdated = true;
return readFrom(spec);
}
}