/**
* 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.whirr.actions;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.whirr.ClusterSpec;
import org.apache.whirr.InstanceTemplate;
import org.apache.whirr.RolePredicates;
import org.apache.whirr.service.ClusterActionEvent;
import org.apache.whirr.service.ClusterActionHandler;
import org.apache.whirr.service.FirewallManager.Rule;
import org.jclouds.compute.ComputeServiceContext;
import com.google.common.base.Function;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.Collections2;
import com.google.common.primitives.Ints;
/**
* A {@link org.apache.whirr.ClusterAction} for running a configuration script on instances
* in the cluster after it has been bootstrapped.
*/
public class ConfigureServicesAction extends ScriptBasedClusterAction {
public ConfigureServicesAction(
Function<ClusterSpec, ComputeServiceContext> getCompute,
LoadingCache<String, ClusterActionHandler> handlerMap
) {
super(getCompute, handlerMap);
}
public ConfigureServicesAction(
Function<ClusterSpec, ComputeServiceContext> getCompute,
LoadingCache<String, ClusterActionHandler> handlerMap,
Set<String> targetRoles,
Set<String> targetInstanceIds
) {
super(getCompute, handlerMap, targetRoles, targetInstanceIds);
}
@Override
protected String getAction() {
return ClusterActionHandler.CONFIGURE_ACTION;
}
/**
* Apply the firewall rules specified via configuration.
*/
protected void eventSpecificActions(InstanceTemplate instanceTemplate, ClusterActionEvent event)
throws IOException {
ClusterSpec clusterSpec = event.getClusterSpec();
Map<String, List<String>> firewallRules = clusterSpec.getFirewallRules();
for (String role: firewallRules.keySet()) {
if (!roleIsInTarget(role)) {
continue; // skip execution for this role
}
Rule rule = Rule.create();
if (role == null) {
rule.destination(event.getCluster().getInstances());
} else {
rule.destination(RolePredicates.role(role));
}
List<String> ports = firewallRules.get(role);
rule.ports(Ints.toArray(Collections2.transform(ports, new Function<String,Integer>() {
@Override
public Integer apply(String input) {
return Integer.valueOf(input);
}
})));
event.getFirewallManager().addRule(rule);
}
}
}