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Support jclouds API for provisioning cloud locations
/*
* 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.brooklyn.location.jclouds;
import static org.apache.brooklyn.util.JavaGroovyEquivalents.groovyTruth;
import java.net.InetAddress;
import java.util.Set;
import org.apache.brooklyn.location.winrm.WinRmMachineLocation;
import org.apache.brooklyn.util.core.flags.SetFromFlag;
import org.apache.brooklyn.util.net.Networking;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.compute.callables.RunScriptOnNode;
import org.jclouds.compute.domain.Image;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.Template;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Objects;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableSet;
public class JcloudsWinRmMachineLocation extends WinRmMachineLocation implements JcloudsMachineLocation {
private static final Logger LOG = LoggerFactory.getLogger(JcloudsWinRmMachineLocation.class);
@SetFromFlag
JcloudsLocation jcloudsParent;
/**
* @deprecated since 0.9.0; the node should not be persisted.
*/
@SetFromFlag
@Deprecated
NodeMetadata node;
/**
* @deprecated since 0.9.0; the template should not be persisted.
*/
@SetFromFlag
@Deprecated
Template template;
@SetFromFlag
String nodeId;
@SetFromFlag
String imageId;
@SetFromFlag
Set privateAddresses;
@SetFromFlag
Set publicAddresses;
@SetFromFlag
String hostname;
/**
* Historically, "node" and "template" were persisted. However that is a very bad idea!
* It means we pull in lots of jclouds classes into the persisted state. We are at an
* intermediate stage, where we want to handle rebinding to old state that has "node"
* and new state that should not. We therefore leave in the {@code @SetFromFlag} on node
* so that we read it back, but we ensure the value is null when we write it out!
*
* TODO We will rename these to get rid of the ugly underscore when the old node/template
* fields are deleted.
*/
private transient Optional _node;
private transient Optional _template;
private transient Optional _image;
private transient String _privateHostname;
public JcloudsWinRmMachineLocation() {
}
@Override
public void init() {
if (jcloudsParent != null) {
super.init();
if (node != null) {
setNode(node);
}
if (template != null) {
setTemplate(template);
}
} else {
// TODO Need to fix the rebind-detection, and not call init() on rebind.
// This will all change when locations become entities.
if (LOG.isDebugEnabled()) LOG.debug("Not doing init() of {} because parent not set; presuming rebinding", this);
}
}
@Override
public void rebind() {
super.rebind();
if (node != null) {
setNode(node);
node = null;
}
if (template != null) {
setTemplate(template);
template = null;
}
}
@Override
public String toVerboseString() {
return Objects.toStringHelper(this).omitNullValues()
.add("id", getId()).add("name", getDisplayName())
.add("user", getUser())
.add("address", getAddress())
.add("port", getPort())
.add("node", _node)
.add("nodeId", getJcloudsId())
.add("imageId", getImageId())
.add("privateAddresses", getPrivateAddresses())
.add("publicAddresses", getPublicAddresses())
.add("parentLocation", getParent())
.add("osDetails", getOsDetails())
.toString();
}
protected void setNode(NodeMetadata node) {
this.node = null;
nodeId = node.getId();
imageId = node.getImageId();
privateAddresses = node.getPrivateAddresses();
publicAddresses = node.getPublicAddresses();
hostname = node.getHostname();
_node = Optional.of(node);
}
protected void setTemplate(Template template) {
this.template = null;
_template = Optional.of(template);
_image = Optional.fromNullable(template.getImage());
}
@Override
public JcloudsLocation getParent() {
return jcloudsParent;
}
@Override
public Optional getOptionalNode() {
if (_node == null) {
_node = Optional.fromNullable(getParent().getComputeService().getNodeMetadata(nodeId));
}
return _node;
}
@VisibleForTesting
Optional peekNode() {
return _node;
}
protected Optional getOptionalImage() {
if (_image == null) {
_image = Optional.fromNullable(getParent().getComputeService().getImage(imageId));
}
return _image;
}
/**
* @since 0.9.0
* @deprecated since 0.9.0 (only added as aid until the deprecated {@link #getTemplate()} is deleted)
*/
@Deprecated
protected Optional getOptionalTemplate() {
if (_template == null) {
_template = Optional.absent();
}
return _template;
}
/**
* @deprecated since 0.9.0
*/
@Override
@Deprecated
public NodeMetadata getNode() {
Optional result = getOptionalNode();
if (result.isPresent()) {
return result.get();
} else {
throw new IllegalStateException("Node "+nodeId+" not present in "+getParent());
}
}
/**
* @deprecated since 0.9.0
*/
@Override
@Deprecated
public Template getTemplate() {
Optional result = getOptionalTemplate();
if (result.isPresent()) {
String msg = "Deprecated use of getTemplate() for "+this;
LOG.warn(msg + " - see debug log for stacktrace");
LOG.debug(msg, new Exception("for stacktrace"));
return result.get();
} else {
throw new IllegalStateException("Template for "+nodeId+" (in "+getParent()+") not cached (deprecated use of getTemplate())");
}
}
@Override
public String getHostname() {
if (hostname != null) {
return hostname;
}
InetAddress address = getAddress();
return (address != null) ? address.getHostAddress() : null;
}
/** In clouds like AWS, the public hostname is the only way to ensure VMs in different zones can access each other. */
@Override
public Set getPublicAddresses() {
return (publicAddresses == null) ? ImmutableSet.of() : publicAddresses;
}
@Override
public Set getPrivateAddresses() {
return (privateAddresses == null) ? ImmutableSet.of() : privateAddresses;
}
@Override
public String getSubnetHostname() {
// Same impl as JcloudsSshMachineLocation
if (_privateHostname == null) {
for (String p : getPrivateAddresses()) {
if (Networking.isLocalOnly(p)) continue;
_privateHostname = p;
}
if (groovyTruth(getPublicAddresses())) {
_privateHostname = getPublicAddresses().iterator().next();
} else if (groovyTruth(getHostname())) {
_privateHostname = getHostname();
} else {
return null;
}
}
return _privateHostname;
}
@Override
public String getSubnetIp() {
// Same impl as JcloudsSshMachineLocation
Optional privateAddress = getPrivateAddress();
if (privateAddress.isPresent()) {
return privateAddress.get();
}
if (groovyTruth(node.getPublicAddresses())) {
return node.getPublicAddresses().iterator().next();
}
return null;
}
protected Optional getPrivateAddress() {
// Same impl as JcloudsSshMachineLocation
for (String p : getPrivateAddresses()) {
if (Networking.isLocalOnly(p)) continue;
return Optional.of(p);
}
return Optional.absent();
}
@Override
public String getJcloudsId() {
return nodeId;
}
protected String getImageId() {
return imageId;
}
}
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