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CassDefinitionsServiceImpl.java
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CassDefinitionsServiceImpl.java
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/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed 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.hawkular.alerts.engine.impl;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.ejb.EJB;
import javax.ejb.Singleton;
import org.hawkular.alerts.api.model.Severity;
import org.hawkular.alerts.api.model.condition.AvailabilityCondition;
import org.hawkular.alerts.api.model.condition.CompareCondition;
import org.hawkular.alerts.api.model.condition.Condition;
import org.hawkular.alerts.api.model.condition.ExternalCondition;
import org.hawkular.alerts.api.model.condition.StringCondition;
import org.hawkular.alerts.api.model.condition.ThresholdCondition;
import org.hawkular.alerts.api.model.condition.ThresholdRangeCondition;
import org.hawkular.alerts.api.model.dampening.Dampening;
import org.hawkular.alerts.api.model.trigger.Tag;
import org.hawkular.alerts.api.model.trigger.Trigger;
import org.hawkular.alerts.api.model.trigger.TriggerTemplate;
import org.hawkular.alerts.api.services.DefinitionsEvent;
import org.hawkular.alerts.api.services.DefinitionsEvent.EventType;
import org.hawkular.alerts.api.services.DefinitionsListener;
import org.hawkular.alerts.api.services.DefinitionsService;
import org.hawkular.alerts.engine.log.MsgLogger;
import org.hawkular.alerts.engine.service.AlertsEngine;
import org.jboss.logging.Logger;
import com.datastax.driver.core.BoundStatement;
import com.datastax.driver.core.PreparedStatement;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.ResultSetFuture;
import com.datastax.driver.core.Row;
import com.datastax.driver.core.Session;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.util.concurrent.Futures;
/**
* A Cassandra implementation of {@link org.hawkular.alerts.api.services.DefinitionsService}.
*
* @author Lucas Ponce
*/
@Singleton
public class CassDefinitionsServiceImpl implements DefinitionsService {
private static final String JBOSS_DATA_DIR = "jboss.server.data.dir";
private static final String INIT_FOLDER = "hawkular-alerts";
private static final String CASSANDRA_KEYSPACE = "hawkular-alerts.cassandra-keyspace";
private final MsgLogger msgLog = MsgLogger.LOGGER;
private final Logger log = Logger.getLogger(CassDefinitionsServiceImpl.class);
private ObjectMapper objectMapper = new ObjectMapper();
private Session session;
private String keyspace;
private boolean initialized = false;
private Map<DefinitionsListener, Set<EventType>> listeners = new HashMap<>();
@EJB
AlertsEngine alertsEngine;
public CassDefinitionsServiceImpl() {
}
public AlertsEngine getAlertsEngine() {
return alertsEngine;
}
public void setAlertsEngine(AlertsEngine alertsEngine) {
this.alertsEngine = alertsEngine;
}
@PostConstruct
public void init() {
try {
if (this.keyspace == null) {
this.keyspace = AlertProperties.getProperty(CASSANDRA_KEYSPACE, "hawkular_alerts");
}
if (session == null) {
session = CassCluster.getSession();
}
/*
Initial data works here because we are in a singleton
*/
initialData();
} catch (Throwable t) {
msgLog.errorCannotInitializeDefinitionsService(t.getMessage());
t.printStackTrace();
}
}
// Note, the cassandra cluster shutdown should be performed only once and is performed here because
// this is a singleton bean. If it becomes Stateless this login will need to be moved.
@PreDestroy
public void shutdown() {
CassCluster.shutdown();
}
private void initialData() throws IOException {
String data = System.getProperty(JBOSS_DATA_DIR);
if (data == null || data.isEmpty()) {
msgLog.errorFolderNotFound(data);
return;
}
String folder = data + "/" + INIT_FOLDER;
initFiles(folder);
initialized = true;
}
private void initFiles(String folder) {
if (folder == null) {
msgLog.errorFolderMustBeNotNull();
return;
}
if (session == null) {
msgLog.errorDatabaseException("Cassandra session is null. Initialization can not work.");
return;
}
File fFolder = new File(folder);
if (!fFolder.exists()) {
log.debugf("Data folder doesn't exits. Skipping initialization.");
return;
}
try {
initTriggers(fFolder);
initConditions(fFolder);
initDampenings(fFolder);
initActions(fFolder);
} catch (Exception e) {
if (log.isDebugEnabled()) {
e.printStackTrace();
}
msgLog.errorDatabaseException("Error initializing files. Msg: " + e);
}
}
private void initTriggers(File fFolder) throws Exception {
File triggersFile = new File(fFolder, "triggers-data.json");
if (triggersFile.exists() && triggersFile.isFile()) {
Map<String, Object> triggers = objectMapper.readValue(triggersFile, Map.class);
if (triggers != null && !triggers.isEmpty() && triggers.get("triggers") != null) {
List<Map<String, Object>> aTriggers = (List<Map<String, Object>>)triggers.get("triggers");
for (Map<String, Object> t : aTriggers) {
String tenantId = (String)t.get("tenantId");
String triggerId = (String)t.get("triggerId");
boolean enabled = (Boolean)t.get("enabled");
String name = (String)t.get("name");
String description = (String)t.get("description");
boolean autoDisable = (Boolean)t.get("autoDisable");
boolean autoEnable = (Boolean)t.get("autoEnable");
boolean autoResolve = (Boolean)t.get("autoResolve");
boolean autoResolveAlerts = (Boolean)t.get("autoResolveAlerts");
Severity severity = Severity.valueOf((String)t.get("severity"));
TriggerTemplate.Match firingMatch = TriggerTemplate.Match.valueOf((String)t.get("firingMatch"));
TriggerTemplate.Match autoResolveMatch = TriggerTemplate.Match
.valueOf((String)t.get("autoResolveMatch"));
List<Map<String, String>> actions = (List<Map<String, String>>)t.get("actions");
Map<String, String> context = (Map<String, String>)t.get("context");
Trigger trigger = new Trigger(triggerId, name);
trigger.setEnabled(enabled);
trigger.setAutoDisable(autoDisable);
trigger.setAutoEnable(autoEnable);
trigger.setAutoResolve(autoResolve);
trigger.setAutoResolveAlerts(autoResolveAlerts);
trigger.setSeverity(severity);
trigger.setDescription(description);
trigger.setFiringMatch(firingMatch);
trigger.setAutoResolveMatch(autoResolveMatch);
trigger.setTenantId(tenantId);
for (Map<String, String> action : actions) {
trigger.addAction(action.get("actionPlugin"), action.get("actionId"));
}
trigger.setContext(context);
addTrigger(tenantId, trigger);
log.debugf("Init file - Inserting [%s]", trigger);
}
}
} else {
msgLog.warningFileNotFound("triggers-data.json");
}
}
private void initConditions(File initFolder) throws Exception {
File conditionsFile = new File(initFolder, "conditions-data.json");
if (conditionsFile.exists() && conditionsFile.isFile()) {
Map<String, Object> conditions = objectMapper.readValue(conditionsFile, Map.class);
if (conditions != null && !conditions.isEmpty() && conditions.get("conditions") != null) {
List<Map<String, Object>> aConditions = (List<Map<String, Object>>)conditions.get("conditions");
for (Map<String, Object> c : aConditions) {
String tenantId = (String)c.get("tenantId");
String triggerId = (String)c.get("triggerId");
Trigger.Mode triggerMode = Trigger.Mode.valueOf((String)c.get("triggerMode"));
int conditionSetSize = (Integer)c.get("conditionSetSize");
int conditionSetIndex = (Integer)c.get("conditionSetIndex");
String type = (String)c.get("type");
if (type != null && !type.isEmpty() && type.equals("threshold")) {
String dataId = (String)c.get("dataId");
String operator = (String)c.get("operator");
Double threshold = (Double)c.get("threshold");
ThresholdCondition newCondition = new ThresholdCondition();
newCondition.setTriggerId(triggerId);
newCondition.setTriggerMode(triggerMode);
newCondition.setConditionSetSize(conditionSetSize);
newCondition.setConditionSetIndex(conditionSetIndex);
newCondition.setDataId(dataId);
newCondition.setOperator(ThresholdCondition.Operator.valueOf(operator));
newCondition.setThreshold(threshold);
newCondition.setTenantId(tenantId);
initCondition(newCondition);
log.debugf("Init file - Inserting [%s]", newCondition);
}
if (type != null && !type.isEmpty() && type.equals("range")) {
String dataId = (String)c.get("dataId");
String operatorLow = (String)c.get("operatorLow");
String operatorHigh = (String)c.get("operatorHigh");
Double thresholdLow = (Double)c.get("thresholdLow");
Double thresholdHigh = (Double)c.get("thresholdHigh");
boolean inRange = (Boolean)c.get("inRange");
ThresholdRangeCondition newCondition = new ThresholdRangeCondition();
newCondition.setTriggerId(triggerId);
newCondition.setTriggerMode(triggerMode);
newCondition.setConditionSetSize(conditionSetSize);
newCondition.setConditionSetIndex(conditionSetIndex);
newCondition.setDataId(dataId);
newCondition.setOperatorLow(ThresholdRangeCondition.Operator.valueOf(operatorLow));
newCondition.setOperatorHigh(ThresholdRangeCondition.Operator.valueOf(operatorHigh));
newCondition.setThresholdLow(thresholdLow);
newCondition.setThresholdHigh(thresholdHigh);
newCondition.setInRange(inRange);
newCondition.setTenantId(tenantId);
initCondition(newCondition);
log.debugf("Init file - Inserting [%s]", newCondition);
}
if (type != null && !type.isEmpty() && type.equals("compare")) {
String dataId = (String)c.get("dataId");
String operator = (String)c.get("operator");
Double data2Multiplier = (Double)c.get("data2Multiplier");
String data2Id = (String)c.get("data2Id");
CompareCondition newCondition = new CompareCondition();
newCondition.setTriggerId(triggerId);
newCondition.setTriggerMode(triggerMode);
newCondition.setConditionSetSize(conditionSetSize);
newCondition.setConditionSetIndex(conditionSetIndex);
newCondition.setDataId(dataId);
newCondition.setOperator(CompareCondition.Operator.valueOf(operator));
newCondition.setData2Multiplier(data2Multiplier);
newCondition.setData2Id(data2Id);
newCondition.setTenantId(tenantId);
initCondition(newCondition);
log.debugf("Init file - Inserting [%s]", newCondition);
}
if (type != null && !type.isEmpty() && type.equals("string")) {
String dataId = (String)c.get("dataId");
String operator = (String)c.get("operator");
String pattern = (String)c.get("pattern");
boolean ignoreCase = (Boolean)c.get("ignoreCase");
StringCondition newCondition = new StringCondition();
newCondition.setTriggerId(triggerId);
newCondition.setTriggerMode(triggerMode);
newCondition.setConditionSetSize(conditionSetSize);
newCondition.setConditionSetIndex(conditionSetIndex);
newCondition.setDataId(dataId);
newCondition.setOperator(StringCondition.Operator.valueOf(operator));
newCondition.setPattern(pattern);
newCondition.setIgnoreCase(ignoreCase);
newCondition.setTenantId(tenantId);
initCondition(newCondition);
log.debugf("Init file - Inserting [%s]", newCondition);
}
if (type != null && !type.isEmpty() && type.equals("availability")) {
String dataId = (String)c.get("dataId");
String operator = (String)c.get("operator");
AvailabilityCondition newCondition = new AvailabilityCondition();
newCondition.setTriggerId(triggerId);
newCondition.setTriggerMode(triggerMode);
newCondition.setConditionSetSize(conditionSetSize);
newCondition.setConditionSetIndex(conditionSetIndex);
newCondition.setDataId(dataId);
newCondition.setOperator(AvailabilityCondition.Operator.valueOf(operator));
newCondition.setTenantId(tenantId);
initCondition(newCondition);
log.debugf("Init file - Inserting [%s]", newCondition);
}
}
}
} else {
msgLog.warningFileNotFound("conditions-data.json");
}
}
private void initCondition(Condition condition) throws Exception {
Collection<Condition> conditions = getTriggerConditions(condition.getTenantId(), condition.getTriggerId(),
condition.getTriggerMode());
conditions.add(condition);
setConditions(condition.getTenantId(), condition.getTriggerId(), condition.getTriggerMode(), conditions);
}
private void initDampenings(File initFolder) throws Exception {
File dampeningFile = new File(initFolder, "dampening-data.json");
if (dampeningFile.exists() && dampeningFile.isFile()) {
Map<String, Object> dampenings = objectMapper.readValue(dampeningFile, Map.class);
if (dampenings != null && !dampenings.isEmpty() && dampenings.get("dampenings") != null) {
List<Map<String, Object>> aDampenings = (List<Map<String, Object>>)dampenings.get("dampenings");
for (Map<String, Object> d : aDampenings) {
String tenantId = (String)d.get("tenantId");
String triggerId = (String)d.get("triggerId");
Trigger.Mode triggerMode = Trigger.Mode.valueOf((String)d.get("triggerMode"));
String type = (String)d.get("type");
int evalTrueSetting = (Integer)d.get("evalTrueSetting");
int evalTotalSetting = (Integer)d.get("evalTotalSetting");
long evalTimeSetting = (Integer)d.get("evalTimeSetting");
Dampening newDampening = new Dampening(triggerId, triggerMode, Dampening.Type.valueOf(type),
evalTrueSetting, evalTotalSetting, evalTimeSetting);
addDampening(tenantId, newDampening);
log.debugf("Init file - Inserting [%s]", newDampening);
}
}
} else {
msgLog.warningFileNotFound("dampening-data.json");
}
}
private void initActions(File initFolder) throws Exception {
File actionsFile = new File(initFolder, "actions-data.json");
if (actionsFile.exists() && actionsFile.isFile()) {
Map<String, Object> actions = objectMapper.readValue(actionsFile, Map.class);
if (actions != null && !actions.isEmpty() && actions.get("actions") != null) {
List<Map<String, Object>> aActions = (List)actions.get("actions");
for (Map<String, Object> a : aActions) {
Map<String, String> newAction = new HashMap<>();
String tenantId = (String)a.get("tenantId");
newAction.put("tenantId", tenantId);
String actionPlugin = (String)a.get("actionPlugin");
newAction.put("actionPlugin", actionPlugin);
String actionId = (String)a.get("actionId");
newAction.put("actionId", actionId);
Map<String, String> properties = (Map<String, String>)a.get("properties");
newAction.putAll(properties);
addAction(tenantId, actionPlugin, actionId, newAction);
log.debugf("Init file - Inserting [%s]", newAction);
}
}
} else {
msgLog.warningFileNotFound("actions-data.json");
}
}
@Override
public void addAction(String tenantId, String actionPlugin, String actionId, Map<String, String> properties)
throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(actionPlugin)) {
throw new IllegalArgumentException("ActionPlugin must be not null");
}
if (isEmpty(actionId)) {
throw new IllegalArgumentException("ActionId must be not null");
}
if (properties == null || properties.isEmpty()) {
throw new IllegalArgumentException("Properties must be not null");
}
properties.put("actionId", actionId);
properties.put("actionPlugin", actionPlugin);
properties.put("tenantId", tenantId);
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement insertAction = CassStatement.get(session, CassStatement.INSERT_ACTION);
if (insertAction == null) {
throw new RuntimeException("insertAction PreparedStatement is null");
}
try {
session.execute(insertAction.bind(tenantId, actionPlugin, actionId, properties));
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
}
@Override
public void addTrigger(String tenantId, Trigger trigger) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(trigger)) {
throw new IllegalArgumentException("TriggerId must be not null");
}
checkTenantId(tenantId, trigger);
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement insertTrigger = CassStatement.get(session, CassStatement.INSERT_TRIGGER);
if (insertTrigger == null) {
throw new RuntimeException("insertTrigger PreparedStatement is null");
}
try {
session.execute(insertTrigger.bind(trigger.getName(), trigger.getDescription(),
trigger.isAutoDisable(), trigger.isAutoEnable(), trigger.isAutoResolve(),
trigger.isAutoResolveAlerts(), trigger.getSeverity().name(),
trigger.getFiringMatch().name(), trigger.getAutoResolveMatch().name(),
trigger.getId(), trigger.isEnabled(), trigger.getTenantId(), trigger.getContext()));
insertTriggerActions(trigger);
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
notifyListeners(DefinitionsEvent.EventType.TRIGGER_CREATE);
}
private void insertTriggerActions(Trigger trigger) throws Exception {
PreparedStatement insertTriggerActions = CassStatement.get(session, CassStatement.INSERT_TRIGGER_ACTIONS);
if (insertTriggerActions == null) {
throw new RuntimeException("insertTriggerActions PreparedStatement is null");
}
if (trigger.getActions() != null) {
List<ResultSetFuture> futures = trigger.getActions().keySet().stream()
.filter(actionPlugin -> trigger.getActions().get(actionPlugin) != null &&
!trigger.getActions().get(actionPlugin).isEmpty())
.map(actionPlugin -> session.executeAsync(insertTriggerActions.bind(trigger.getTenantId(),
trigger.getId(), actionPlugin, trigger.getActions().get(actionPlugin))))
.collect(Collectors.toList());
Futures.allAsList(futures).get();
}
}
@Override
public void removeTrigger(String tenantId, String triggerId) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(triggerId)) {
throw new IllegalArgumentException("TriggerId must be not null");
}
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement deleteDampenings = CassStatement.get(session, CassStatement.DELETE_DAMPENINGS);
PreparedStatement deleteConditions = CassStatement.get(session, CassStatement.DELETE_CONDITIONS);
PreparedStatement deleteTrigger = CassStatement.get(session, CassStatement.DELETE_TRIGGER);
if (deleteDampenings == null || deleteConditions == null || deleteTrigger == null) {
throw new RuntimeException("delete*Triggers PreparedStatement is null");
}
try {
deleteTags(tenantId, triggerId, null, null);
List<ResultSetFuture> futures = new ArrayList<>();
futures.add(session.executeAsync(deleteDampenings.bind(tenantId, triggerId)));
futures.add(session.executeAsync(deleteConditions.bind(tenantId, triggerId)));
futures.add(session.executeAsync(deleteTrigger.bind(tenantId, triggerId)));
Futures.allAsList(futures).get();
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
notifyListeners(DefinitionsEvent.EventType.TRIGGER_REMOVE);
}
@Override
public Trigger updateTrigger(String tenantId, Trigger trigger) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(trigger)) {
throw new IllegalArgumentException("TriggerId must be not null");
}
checkTenantId(tenantId, trigger);
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement updateTrigger = CassStatement.get(session, CassStatement.UPDATE_TRIGGER);
if (updateTrigger == null) {
throw new RuntimeException("updateTrigger PreparedStatement is null");
}
try {
session.execute(updateTrigger.bind(trigger.getName(), trigger.getDescription(), trigger.isAutoDisable(),
trigger.isAutoEnable(), trigger.isAutoResolve(), trigger.isAutoResolveAlerts(),
trigger.getSeverity().name(), trigger.getFiringMatch().name(),
trigger.getAutoResolveMatch().name(), trigger.isEnabled(), trigger.getTenantId(),
trigger.getId()));
deleteTriggerActions(trigger);
insertTriggerActions(trigger);
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
if (initialized && null != alertsEngine) {
alertsEngine.reloadTrigger(trigger.getTenantId(), trigger.getId());
}
notifyListeners(DefinitionsEvent.EventType.TRIGGER_UPDATE);
return trigger;
}
private void deleteTriggerActions(Trigger trigger) throws Exception {
PreparedStatement deleteTriggerActions = CassStatement.get(session, CassStatement.DELETE_TRIGGER_ACTIONS);
if (deleteTriggerActions == null) {
throw new RuntimeException("updateTrigger PreparedStatement is null");
}
session.execute(deleteTriggerActions.bind(trigger.getTenantId(), trigger.getId()));
}
@Override
public Trigger getTrigger(String tenantId, String triggerId) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(triggerId)) {
throw new IllegalArgumentException("TriggerId must be not null");
}
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement selectTrigger = CassStatement.get(session, CassStatement.SELECT_TRIGGER);
if (selectTrigger == null) {
throw new RuntimeException("selectTrigger PreparedStatement is null");
}
Trigger trigger = null;
try {
ResultSet rsTrigger = session.execute(selectTrigger.bind(tenantId, triggerId));
Iterator<Row> itTrigger = rsTrigger.iterator();
if (itTrigger.hasNext()) {
Row row = itTrigger.next();
trigger = mapTrigger(row);
selectTriggerActions(trigger);
}
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
return trigger;
}
// TODO: This fetch perform cross-tenant fetch and may be inefficient at scale
@Override
public Collection<Trigger> getAllTriggers() throws Exception {
return selectTriggers(null);
}
@Override
public Collection<Trigger> getTriggers(String tenantId) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
return selectTriggers(tenantId);
}
private Collection<Trigger> selectTriggers(String tenantId) throws Exception {
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement selectTriggers = isEmpty(tenantId) ?
CassStatement.get(session, CassStatement.SELECT_TRIGGERS_ALL) :
CassStatement.get(session, CassStatement.SELECT_TRIGGERS_TENANT);
if (null == selectTriggers) {
throw new RuntimeException("selectTriggersTenant PreparedStatement is null");
}
List<Trigger> triggers = new ArrayList<>();
try {
ResultSet rsTriggers = session.execute(isEmpty(tenantId) ?
selectTriggers.bind() :
selectTriggers.bind(tenantId));
for (Row row : rsTriggers) {
Trigger trigger = mapTrigger(row);
selectTriggerActions(trigger);
triggers.add(trigger);
}
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
return triggers;
}
// TODO: This performs a cross-tenant fetch and may be inefficient at scale
@Override
public Collection<Trigger> getAllTriggersByTag(String category, String name) throws Exception {
if (isEmpty(name)) {
throw new IllegalArgumentException("Name must be not null");
}
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
try {
// first, get all the partitions for tags (i.e. tenants)
BoundStatement bs = CassStatement.get(session, CassStatement.SELECT_PARTITIONS_TAGS).bind();
Set<String> tenants = new HashSet<>();
for (Row row : session.execute(bs)) {
tenants.add(row.getString("tenantId"));
}
// next, get all of the tagged triggerIds
PreparedStatement selectTagsTriggers = isEmpty(category) ?
CassStatement.get(session, CassStatement.SELECT_TAGS_TRIGGERS_BY_NAME) :
CassStatement.get(session, CassStatement.SELECT_TAGS_TRIGGERS_BY_CATEGORY_AND_NAME);
if (selectTagsTriggers == null) {
throw new RuntimeException("selectTagsTriggersByTag PreparedStatement is null");
}
Map<String, Set<String>> tenantTriggerIdsMap = new HashMap<>();
List<ResultSetFuture> futures = isEmpty(category) ?
tenants.stream()
.map(tenantId -> session.executeAsync(selectTagsTriggers.bind(tenantId, name)))
.collect(Collectors.toList()) :
tenants.stream()
.map(tenantId -> session.executeAsync(selectTagsTriggers.bind(tenantId, category, name)))
.collect(Collectors.toList());
List<ResultSet> rsTriggerIds = Futures.allAsList(futures).get();
rsTriggerIds.stream().forEach(rs -> {
for (Row row : rs) {
String tenantId = row.getString("tenantId");
Set<String> triggerIds = row.getSet("triggers", String.class);
Set<String> storedTriggerIds = tenantTriggerIdsMap.get(tenantId);
if (null != storedTriggerIds) {
triggerIds.addAll(storedTriggerIds);
}
tenantTriggerIdsMap.put(tenantId, triggerIds);
}
});
// Now, generate a cross-tenant result set if Triggers using the tenantIds and triggerIds
List<Trigger> triggers = new ArrayList<>();
PreparedStatement selectTrigger = CassStatement.get(session, CassStatement.SELECT_TRIGGER);
for (Map.Entry<String, Set<String>> entry : tenantTriggerIdsMap.entrySet()) {
String tenantId = entry.getKey();
Set<String> triggerIds = entry.getValue();
futures = triggerIds.stream().map(triggerId ->
session.executeAsync(selectTrigger.bind(tenantId, triggerId)))
.collect(Collectors.toList());
List<ResultSet> rsTriggers = Futures.allAsList(futures).get();
rsTriggers.stream().forEach(r -> {
for (Row row : r) {
triggers.add(mapTrigger(row));
}
});
}
return triggers;
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
}
@Override
public Collection<Trigger> getTriggersByTag(String tenantId, String category, String name) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("tenantId must be not null");
}
if (isEmpty(category) && isEmpty(name)) {
throw new IllegalArgumentException("Category and Name can not both be null");
}
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
try {
Set<String> triggerIds = getTriggerIdsByTag(tenantId, category, name);
// Now, generate a result set of Triggers using the triggerIds
List<Trigger> triggers = new ArrayList<>(triggerIds.size());
PreparedStatement selectTrigger = CassStatement.get(session, CassStatement.SELECT_TRIGGER);
List<ResultSetFuture> futures = triggerIds.stream().map(triggerId ->
session.executeAsync(selectTrigger.bind(tenantId, triggerId)))
.collect(Collectors.toList());
List<ResultSet> rsTriggers = Futures.allAsList(futures).get();
rsTriggers.stream().forEach(r -> {
for (Row row : r) {
triggers.add(mapTrigger(row));
}
});
return triggers;
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
}
private void selectTriggerActions(Trigger trigger) throws Exception {
if (trigger == null) {
throw new IllegalArgumentException("Trigger must be not null");
}
PreparedStatement selectTriggerActions = CassStatement.get(session, CassStatement.SELECT_TRIGGER_ACTIONS);
if (selectTriggerActions == null) {
throw new RuntimeException("selectTriggerActions PreparedStatement is null");
}
ResultSet rsTriggerActions = session
.execute(selectTriggerActions.bind(trigger.getTenantId(), trigger.getId()));
for (Row row : rsTriggerActions) {
String actionPlugin = row.getString("actionPlugin");
Set<String> actions = row.getSet("actions", String.class);
trigger.addActions(actionPlugin, actions);
}
}
private Trigger mapTrigger(Row row) {
Trigger trigger = new Trigger();
trigger.setName(row.getString("name"));
trigger.setDescription(row.getString("description"));
trigger.setAutoDisable(row.getBool("autoDisable"));
trigger.setAutoEnable(row.getBool("autoEnable"));
trigger.setAutoResolve(row.getBool("autoResolve"));
trigger.setAutoResolveAlerts(row.getBool("autoResolveAlerts"));
trigger.setSeverity(Severity.valueOf(row.getString("severity")));
trigger.setFiringMatch(TriggerTemplate.Match.valueOf(row.getString("firingMatch")));
trigger.setAutoResolveMatch(TriggerTemplate.Match.valueOf(row.getString("autoResolveMatch")));
trigger.setId(row.getString("id"));
trigger.setEnabled(row.getBool("enabled"));
trigger.setTenantId(row.getString("tenantId"));
trigger.setContext(row.getMap("context", String.class, String.class));
return trigger;
}
@Override
public Trigger copyTrigger(String tenantId, String triggerId, Map<String, String> dataIdMap) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(triggerId)) {
throw new IllegalArgumentException("TriggerId must be not null");
}
if (isEmpty(dataIdMap)) {
throw new IllegalArgumentException("DataIdMap must be not null");
}
Trigger trigger = getTrigger(tenantId, triggerId);
if (trigger == null) {
throw new IllegalArgumentException("Trigger not found for tenantId [ " + tenantId + "] and triggerId [" +
triggerId + "]");
}
// ensure we have a 1-1 mapping for the dataId substitution
Set<String> dataIdTokens = new HashSet<>();
Collection<Condition> conditions = getTriggerConditions(tenantId, triggerId, null);
for (Condition c : conditions) {
if (c instanceof CompareCondition) {
dataIdTokens.add(c.getDataId());
dataIdTokens.add(((CompareCondition)c).getData2Id());
} else {
dataIdTokens.add(c.getDataId());
}
}
if (!dataIdTokens.equals(dataIdMap.keySet())) {
throw new IllegalArgumentException(
"DataIdMap must contain the exact dataIds (keyset) expected by the condition set. Expected: "
+ dataIdMap.keySet() + ", dataIdMap: " + dataIdMap.keySet());
}
Collection<Dampening> dampenings = getTriggerDampenings(tenantId, triggerId, null);
Trigger newTrigger = new Trigger(trigger.getName());
newTrigger.setName(trigger.getName());
newTrigger.setDescription(trigger.getDescription());
newTrigger.setSeverity(trigger.getSeverity());
newTrigger.setFiringMatch(trigger.getFiringMatch());
newTrigger.setAutoResolveMatch(trigger.getAutoResolveMatch());
newTrigger.setActions(trigger.getActions());
newTrigger.setTenantId(trigger.getTenantId());
addTrigger(tenantId, newTrigger);
for (Condition c : conditions) {
Condition newCondition = null;
if (c instanceof ThresholdCondition) {
newCondition = new ThresholdCondition(newTrigger.getId(), c.getTriggerMode(),
c.getConditionSetSize(), c.getConditionSetIndex(), dataIdMap.get(c.getDataId()),
((ThresholdCondition)c).getOperator(), ((ThresholdCondition)c).getThreshold());
} else if (c instanceof ThresholdRangeCondition) {
newCondition = new ThresholdRangeCondition(newTrigger.getId(), c.getTriggerMode(),
c.getConditionSetSize(), c.getConditionSetIndex(), dataIdMap.get(c.getDataId()),
((ThresholdRangeCondition)c).getOperatorLow(),
((ThresholdRangeCondition)c).getOperatorHigh(),
((ThresholdRangeCondition)c).getThresholdLow(),
((ThresholdRangeCondition)c).getThresholdHigh(),
((ThresholdRangeCondition)c).isInRange());
} else if (c instanceof AvailabilityCondition) {
newCondition = new AvailabilityCondition(newTrigger.getId(), c.getTriggerMode(),
c.getConditionSetSize(), c.getConditionSetIndex(), dataIdMap.get(c.getDataId()),
((AvailabilityCondition)c).getOperator());
} else if (c instanceof CompareCondition) {
newCondition = new CompareCondition(newTrigger.getId(), c.getTriggerMode(),
c.getConditionSetSize(), c.getConditionSetIndex(), dataIdMap.get(c.getDataId()),
((CompareCondition)c).getOperator(),
((CompareCondition)c).getData2Multiplier(),
dataIdMap.get(((CompareCondition)c).getData2Id()));
} else if (c instanceof StringCondition) {
newCondition = new StringCondition(newTrigger.getId(), c.getTriggerMode(),
c.getConditionSetSize(), c.getConditionSetIndex(), dataIdMap.get(c.getDataId()),
((StringCondition)c).getOperator(), ((StringCondition)c).getPattern(),
((StringCondition)c).isIgnoreCase());
}
if (newCondition != null) {
newCondition.setTenantId(newTrigger.getTenantId());
addCondition(newTrigger.getTenantId(), newTrigger.getId(), newCondition.getTriggerMode(), newCondition);
}
}
for (Dampening d : dampenings) {
Dampening newDampening = new Dampening(newTrigger.getId(), d.getTriggerMode(), d.getType(),
d.getEvalTrueSetting(), d.getEvalTotalSetting(), d.getEvalTimeSetting());
newDampening.setTenantId(newTrigger.getTenantId());
addDampening(newTrigger.getTenantId(), newDampening);
}
return newTrigger;
}
@Override
public Dampening addDampening(String tenantId, Dampening dampening) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(dampening)) {
throw new IllegalArgumentException("TriggerId must be not null");
}
checkTenantId(tenantId, dampening);
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement insertDampening = CassStatement.get(session, CassStatement.INSERT_DAMPENING);
if (insertDampening == null) {
throw new RuntimeException("insertDampening PreparedStatement is null");
}
try {
session.execute(insertDampening.bind(dampening.getTriggerId(), dampening.getTriggerMode().name(),
dampening.getType().name(), dampening.getEvalTrueSetting(), dampening.getEvalTotalSetting(),
dampening.getEvalTimeSetting(), dampening.getDampeningId(), dampening.getTenantId()));
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
if (initialized && null != alertsEngine) {
alertsEngine.reloadTrigger(dampening.getTenantId(), dampening.getTriggerId());
}
notifyListeners(DefinitionsEvent.EventType.DAMPENING_CHANGE);
return dampening;
}
@Override
public void removeDampening(String tenantId, String dampeningId) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(dampeningId)) {
throw new IllegalArgumentException("dampeningId must be not null");
}
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement deleteDampeningId = CassStatement.get(session, CassStatement.DELETE_DAMPENING_ID);
if (deleteDampeningId == null) {
throw new RuntimeException("deleteDampeningId PreparedStatement is null");
}
Dampening dampening = getDampening(tenantId, dampeningId);
if (dampening == null) {
log.debugf("Ignoring removeDampening(" + dampeningId + "), the Dampening does not exist.");
return;
}
try {
session.execute(deleteDampeningId.bind(dampening.getTenantId(), dampening.getTriggerId(),
dampening.getTriggerMode().name(), dampeningId));
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
if (initialized && null != alertsEngine) {
alertsEngine.reloadTrigger(dampening.getTenantId(), dampening.getTriggerId());
}
notifyListeners(DefinitionsEvent.EventType.DAMPENING_CHANGE);
}
@Override
public Dampening updateDampening(String tenantId, Dampening dampening) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(dampening)) {
throw new IllegalArgumentException("DampeningId must be not null");
}
checkTenantId(tenantId, dampening);
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}
PreparedStatement updateDampeningId = CassStatement.get(session, CassStatement.UPDATE_DAMPENING_ID);
if (updateDampeningId == null) {
throw new RuntimeException("updateDampeningId PreparedStatement is null");
}
try {
session.execute(updateDampeningId.bind(dampening.getType().name(), dampening.getEvalTrueSetting(),
dampening.getEvalTotalSetting(), dampening.getEvalTimeSetting(), dampening.getTenantId(),
dampening.getTriggerId(), dampening.getTriggerMode().name(), dampening.getDampeningId()));
} catch (Exception e) {
msgLog.errorDatabaseException(e.getMessage());
throw e;
}
if (initialized && null != alertsEngine) {
alertsEngine.reloadTrigger(dampening.getTenantId(), dampening.getTriggerId());
}
notifyListeners(DefinitionsEvent.EventType.DAMPENING_CHANGE);
return dampening;
}
@Override
public Dampening getDampening(String tenantId, String dampeningId) throws Exception {
if (isEmpty(tenantId)) {
throw new IllegalArgumentException("TenantId must be not null");
}
if (isEmpty(dampeningId)) {
throw new IllegalArgumentException("DampeningId must be not null");
}
session = CassCluster.getSession();
if (session == null) {
throw new RuntimeException("Cassandra session is null");
}