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NodeRestController.groovy
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/
NodeRestController.groovy
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package yana.node
import groovy.xml.MarkupBuilder
import grails.converters.XML
import grails.converters.JSON
import yana.XmlParserUtil
import yana.attributes.*
class NodeRestController {
//
// List the nodes. Url: GET /api/nodes
//
def list = {
def list = Node.list()
println "DEBUG: params.format="+params.format
switch (params.format) {
case "json":
render list as JSON
break
case "rundeck-xml":
render generateRundeckXml(list)
break;
default:
render list as XML
}
}
//
// Generates a Rundeck XML formatted view of the Nodes
//
def generateRundeckXml(list) {
def writer = new StringWriter()
def xml = new MarkupBuilder(writer)
xml.project() {
list.each{ Node nodeInstance->
node( name:nodeInstance.name,
description:nodeInstance.description,
osName:nodeInstance.osName,
hostname:nodeInstance.hostname,
osFamily:nodeInstance.osFamily,
tags: nodeInstance.tagsString(",")
) {
nodeInstance.attributes.each{ Attribute attr->
attribute(name:attr.name, value:attr.value)
}
nodeInstance.externalAttributes.each{ Attributes attrs->
attrs.external.each{ ExternalAttribute eattr->
// prefix with Attributes' name
attribute(name:attrs.name+"."+eattr.name,
value:eattr.value)
}
}
}
}
}
return writer.toString()
}
//
// Get the node. Url: GET /api/nodes/{id}
//
def show = {
Node obj = Node.get(params.id)
if (obj) {
switch (params.format) {
case "json":
render obj as JSON
break
default:
render obj as XML
}
} else {
response.sendError(404)
}
}
//
// Add a node. Url: POST /api/nodes
//
def add = {
println "DEBUG: HEY, inside method: nodeRest#add ..."
def parser = new XmlParser()
def xmlnode = parser.parse(request.getInputStream())
def nodeMap = XmlParserUtil.toObject(xmlnode)
println "DEBUG: XmlParserUtil.toObject(xmlnode)= "+ nodeMap
if (Node.exists(nodeMap.id)) {
// Forbidden. The node already exists.
render status:403, contentType:"text/xml", encoding:"utf-8", {
errors {
error {
message("Node already exists")
references {
node(id:nodeMap.id)
}
}
}
}
} else {
// Create a new node instance
def nodeInstance = Node.fromMap(nodeMap)
nodeInstance.save(flush:true)
if (nodeInstance && !nodeInstance.hasErrors()) {
render status:201, contentType:"text/xml", encoding:"utf-8", {
results {
result {
message("Created new node")
references {
node(id:nodeInstance.id)
}
}
}
}
} else {
// Bad request.
render status:400, contentType:"text/xml", encoding:"utf-8", {
errors {
nodeInstance?.errors?.fieldErrors?.each { err ->
error {
field(err.field)
message(g.message(error: err))
}
}
}
}
}
}
}
//
// Save a node. Url: POST /api/nodes/{id}
//
def save = {
println "DEBUG: HEY, inside method: nodeRest#save ..."
def nodeInstance = Node.get(params.id)
if (nodeInstance) {
// Save the node updates
println "DEBUG: params['node']="+params['node']
nodeInstance.properties = params['node']
if (!nodeInstance.hasErrors() && nodeInstance.save(flush:true)) {
render status:200, contentType:"text/xml", encoding:"utf-8", {
results {
result {
message("saved node data")
}
}
}
} else {
render status:403, contentType:"text/xml", encoding:"utf-8", {
errors {
nodeInstance?.errors?.fieldErrors?.each { err ->
error {
field(err.field)
message(g.message(error: err))
}
}
}
}
}
} else {
// Not Found.
render status:404, contentType:"text/xml", encoding:"utf-8", {
errors {
error {
message("Node not found")
references {
node(id:params.id)
}
}
}
}
}
if (nodeInstance && !nodeInstance.hasErrors()) {
render status:202, contentType: "text/xml", encoding: "utf-8", {
results {
result {
message("Node info saved")
}
}
}
} else {
// Bad request.
render status:400, contentType:"text/xml", encoding:"utf-8", {
errors {
nodeInstance?.errors?.fieldErrors?.each { err ->
error {
field(err.field)
message(g.message(error: err))
}
}
}
}
}
}
//
// Delete a node. Url: DELETE /api/nodes/{id}
//
def delete = {
println "DEBUG: inside method: nodeRest#delete"
println "DEBUG: checking for id: " + params.id
def nodeInstance = Node.get(params.id)
if (nodeInstance) {
nodeInstance.delete(flush: true)
// Ok.
render status:200, contentType:"text/xml", encoding:"utf-8", {
results {
result {
message("Node removed")
references {
node(id:params.id)
}
}
}
}
} else {
// Accepted.
render status:202, contentType:"text/xml", encoding:"utf-8", {
results {
result {
message("Node not found")
references {
node(id:params.id)
}
}
}
}
}
}
//
// List the tags. Url: GET /api/nodes/{id}/tags
//
def listTags = {
Node obj = Node.get(params.id)
if (obj) {
def writer = new StringWriter()
def xml = new MarkupBuilder(writer)
def list = obj.tags
xml.tags() {
list.each{ Tag tagInstance->
tag(id:tagInstance.id) {
name(tagInstance.name)
}
}
}
render writer.toString()
} else {
response.sendError(404)
}
}
}