/**
* 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.scom;
import org.apache.ambari.msi.AbstractResourceProvider;
import org.apache.ambari.msi.ClusterDefinition;
import org.apache.ambari.msi.StateProvider;
import org.apache.ambari.scom.utilities.SCOMMetricHelper;
import org.apache.ambari.server.configuration.ComponentSSLConfiguration;
import org.apache.ambari.server.controller.internal.DefaultProviderModule;
import org.apache.ambari.server.controller.internal.URLStreamProvider;
import org.apache.ambari.server.controller.jdbc.ConnectionFactory;
import org.apache.ambari.server.controller.jmx.JMXPropertyProvider;
import org.apache.ambari.server.controller.spi.PropertyProvider;
import org.apache.ambari.server.controller.spi.Resource;
import org.apache.ambari.server.controller.spi.ResourceProvider;
import org.apache.ambari.server.controller.spi.SystemException;
import org.apache.ambari.server.controller.utilities.PropertyHelper;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Provider module used to install PropertyProviders required for ambari-scom.
*/
public class SQLProviderModule extends DefaultProviderModule implements HostInfoProvider, StateProvider {
private final ClusterDefinition clusterDefinition;
// TODO : these elements should be injected...
private final ConnectionFactory connectionFactory = SinkConnectionFactory.instance();
private final ComponentSSLConfiguration sslConfiguration = ComponentSSLConfiguration.instance();
private final URLStreamProvider urlStreamProvider = new URLStreamProvider(5000, 10000,
sslConfiguration.getTruststorePath(), sslConfiguration.getTruststorePassword(), sslConfiguration.getTruststoreType());
// ----- Constants ---------------------------------------------------------
private static Map<String, String> serviceNames = new HashMap<String, String>();
private void initServiceNames() {
Integer majorStackVersion = clusterDefinition.getMajorStackVersion();
Integer minorStackVersion = clusterDefinition.getMinorStackVersion();
if(majorStackVersion != null) {
serviceNames.put("HIVE_SERVER", majorStackVersion == 1 ? "hiveserver" : "hiveserver2");
if(minorStackVersion != null) {
serviceNames.put("HISTORYSERVER", majorStackVersion > 1 && minorStackVersion > 0 ? "jobhistoryserver" : "historyserver");
}
}
serviceNames.put("NAMENODE", "namenode");
serviceNames.put("SECONDARY_NAMENODE", "secondarynamenode");
serviceNames.put("JOBTRACKER", "jobtracker");
serviceNames.put("HIVE_METASTORE", "metastore");
serviceNames.put("HIVE_CLIENT", "hwi");
serviceNames.put("OOZIE_SERVER", "oozieservice");
serviceNames.put("FLUME_SERVER", "flumagent");
serviceNames.put("HBASE_MASTER", "master");
serviceNames.put("HBASE_REGIONSERVER", "regionserver");
serviceNames.put("ZOOKEEPER_SERVER", "zkServer");
serviceNames.put("ZKFC", "zkfc");
serviceNames.put("DATANODE", "datanode");
serviceNames.put("TASKTRACKER", "tasktracker");
serviceNames.put("WEBHCAT_SERVER", "templeton");
serviceNames.put("NODEMANAGER", "nodemanager");
serviceNames.put("RESOURCEMANAGER", "resourcemanager");
serviceNames.put("JOURNALNODE", "journalnode");
}
private static final String STATE_PREFIX = "STATE : ";
// ----- Constructor -------------------------------------------------------
public SQLProviderModule() {
clusterDefinition = new ClusterDefinition(this, ClusterDefinitionProvider.instance(), this);
initServiceNames();
}
// ----- AbstractProviderModule --------------------------------------------
@Override
protected ResourceProvider createResourceProvider(Resource.Type type) {
return AbstractResourceProvider.getResourceProvider(type, clusterDefinition);
}
@Override
protected void createPropertyProviders(Resource.Type type) {
List<PropertyProvider> providers = new LinkedList<PropertyProvider>();
if (type.equals(Resource.Type.Component)) {
providers.add(new JMXPropertyProvider(
SCOMMetricHelper.getJMXPropertyIds(type),
urlStreamProvider,
this,
this,
PropertyHelper.getPropertyId("ServiceComponentInfo", "cluster_name"),
null,
PropertyHelper.getPropertyId("ServiceComponentInfo", "component_name"),
PropertyHelper.getPropertyId("ServiceComponentInfo", "state")));
providers.add(new SQLPropertyProvider(
SCOMMetricHelper.getSqlServerPropertyIds(type),
this,
PropertyHelper.getPropertyId("ServiceComponentInfo", "cluster_name"),
null,
PropertyHelper.getPropertyId("ServiceComponentInfo", "component_name"),
PropertyHelper.getPropertyId("ServiceComponentInfo", "service_name"),
connectionFactory));
} else if (type.equals(Resource.Type.HostComponent)) {
providers.add(new JMXPropertyProvider(
SCOMMetricHelper.getJMXPropertyIds(type),
urlStreamProvider,
this,
this,
PropertyHelper.getPropertyId("HostRoles", "cluster_name"),
PropertyHelper.getPropertyId("HostRoles", "host_name"),
PropertyHelper.getPropertyId("HostRoles", "component_name"),
PropertyHelper.getPropertyId("HostRoles", "state")));
providers.add(new SQLPropertyProvider(
SCOMMetricHelper.getSqlServerPropertyIds(type),
this,
PropertyHelper.getPropertyId("HostRoles", "cluster_name"),
PropertyHelper.getPropertyId("HostRoles", "host_name"),
PropertyHelper.getPropertyId("HostRoles", "component_name"),
PropertyHelper.getPropertyId("HostRoles", "service_name"),
connectionFactory));
}
putPropertyProviders(type, providers);
}
// ----- HostProvider ------------------------------------------------------
@Override
public String getHostName(String clusterName, String componentName) throws SystemException {
return getClusterNodeName(super.getHostName(clusterName, componentName));
}
@Override
public Set<String> getHostNames(String clusterName, String componentName) {
return super.getHostNames(clusterName, componentName);
}
@Override
public String getHostName(String id) throws SystemException {
return getClusterNodeName(id);
}
@Override
public String getHostAddress(String id) throws SystemException {
return getClusterHostAddress(id);
}
// ----- StateProvider -----------------------------------------------------
@Override
public State getRunningState(String hostName, String componentName) {
String serviceName = getServiceName(componentName);
if (serviceName != null) {
String[] cmdStrings = {"sc", "\\\\" + hostName, "query", "\"" + serviceName + "\""}; // Windows specific command
java.lang.Process process = runProcess(cmdStrings);
if (process.exitValue() == 0) {
String response = getProcessResponse(process.getInputStream());
int i = response.indexOf(STATE_PREFIX);
if (i >= 0) {
int state = Integer.parseInt(response.substring(i + STATE_PREFIX.length(), i + STATE_PREFIX.length() + 1));
switch (state) {
case (1): // service stopped
return State.Stopped;
case (4): // service started
return State.Running;
}
}
}
}
return State.Unknown;
}
@Override
public Process setRunningState(String hostName, String componentName, State state) {
String serviceName = getServiceName(componentName);
if (serviceName != null) {
String command = state == State.Running ? "start" : "stop";
String[] cmdStrings = {"sc", "\\\\" + hostName, command, "\"" + serviceName + "\""}; // Windows specific command
return new StateProcess(runProcess(cmdStrings));
}
return null;
}
// ----- utility methods ---------------------------------------------------
// get the hostname
private String getClusterNodeName(String hostname) throws SystemException {
try {
if (hostname.equalsIgnoreCase("localhost")) {
return InetAddress.getLocalHost().getCanonicalHostName();
}
return InetAddress.getByName(hostname).getCanonicalHostName();
} catch (Exception e) {
throw new SystemException("Error getting hostname.", e);
}
}
// get the hostname
private String getClusterHostAddress(String hostname) throws SystemException {
try {
if (hostname.equalsIgnoreCase("localhost")) {
return InetAddress.getLocalHost().getHostAddress();
}
return InetAddress.getByName(hostname).getHostAddress();
} catch (Exception e) {
throw new SystemException("Error getting ip address.", e);
}
}
// get the Windows service name from the given component name
private String getServiceName(String componentName) {
return serviceNames.get(componentName);
}
// run a process specified by the given command strings
private java.lang.Process runProcess(String... commands) {
Runtime runtime = Runtime.getRuntime();
java.lang.Process process;
try {
process = runtime.exec(commands);
process.waitFor();
} catch (Exception e) {
return null;
}
return process;
}
// get the response text from a completed process stream
private static String getProcessResponse(InputStream stream) {
StringBuilder sb = new StringBuilder();
BufferedReader stdInput = new BufferedReader(new InputStreamReader(stream));
try {
String line;
while ((line = stdInput.readLine()) != null) {
sb.append(line);
}
} catch (Exception e) {
return null;
}
return sb.toString();
}
// ----- inner class : StateProcess ----------------------------------------
public static class StateProcess implements Process {
private final java.lang.Process process;
private String output = null;
private String error = null;
public StateProcess(java.lang.Process process) {
this.process = process;
}
@Override
public boolean isRunning() {
try {
process.exitValue();
} catch (IllegalThreadStateException e) {
return true;
}
return false;
}
@Override
public int getExitCode() {
return process.exitValue();
}
@Override
public String getOutput() {
if (output != null) {
return output;
}
String processResponse = getProcessResponse(process.getInputStream());
if (!isRunning()) {
output = processResponse;
}
return processResponse;
}
@Override
public String getError() {
if (error != null) {
return error;
}
String processResponse = getProcessResponse(process.getErrorStream());
if (!isRunning()) {
error = processResponse;
}
return processResponse;
}
}
}