root / src / com / rackspace / cloud / loadbalancer / api / client / NodeManager.java @ 1b82ddb3
History | View | Annotate | Download (8.9 kB)
| 1 |
package com.rackspace.cloud.loadbalancer.api.client; |
|---|---|
| 2 |
|
| 3 |
import java.io.IOException; |
| 4 |
import java.io.StringReader; |
| 5 |
import java.io.UnsupportedEncodingException; |
| 6 |
import java.util.ArrayList; |
| 7 |
|
| 8 |
import javax.xml.parsers.FactoryConfigurationError; |
| 9 |
import javax.xml.parsers.ParserConfigurationException; |
| 10 |
import javax.xml.parsers.SAXParser; |
| 11 |
import javax.xml.parsers.SAXParserFactory; |
| 12 |
|
| 13 |
import org.apache.http.HttpResponse; |
| 14 |
import org.apache.http.client.ClientProtocolException; |
| 15 |
import org.apache.http.client.methods.HttpDelete; |
| 16 |
import org.apache.http.client.methods.HttpGet; |
| 17 |
import org.apache.http.client.methods.HttpPost; |
| 18 |
import org.apache.http.client.methods.HttpPut; |
| 19 |
import org.apache.http.entity.StringEntity; |
| 20 |
import org.apache.http.impl.client.BasicResponseHandler; |
| 21 |
import org.apache.http.protocol.RequestExpectContinue; |
| 22 |
import org.xml.sax.InputSource; |
| 23 |
import org.xml.sax.SAXException; |
| 24 |
import org.xml.sax.XMLReader; |
| 25 |
|
| 26 |
import android.content.Context; |
| 27 |
|
| 28 |
import com.rackspace.cloud.files.api.client.CustomHttpClient; |
| 29 |
import com.rackspace.cloud.loadbalancer.api.client.http.LoadBalancersException; |
| 30 |
import com.rackspace.cloud.loadbalancer.api.parsers.CloudLoadBalancersFaultXMLParser; |
| 31 |
import com.rackspace.cloud.loadbalancer.api.parsers.NodesXMLParser; |
| 32 |
import com.rackspace.cloud.servers.api.client.Account; |
| 33 |
import com.rackspace.cloud.servers.api.client.CloudServersException; |
| 34 |
import com.rackspace.cloud.servers.api.client.http.HttpBundle; |
| 35 |
|
| 36 |
public class NodeManager { |
| 37 |
|
| 38 |
private Context context; |
| 39 |
|
| 40 |
public NodeManager(Context context) { |
| 41 |
this.context = context;
|
| 42 |
} |
| 43 |
|
| 44 |
public ArrayList<Node> createList(LoadBalancer loadBalancer) throws LoadBalancersException { |
| 45 |
CustomHttpClient httpclient = new CustomHttpClient(context);
|
| 46 |
HttpGet get = new HttpGet(LoadBalancer.getRegionUrl(loadBalancer.getRegion()) + Account.getAccount().getAccountId()
|
| 47 |
+ "/loadbalancers/" + loadBalancer.getId() + "/nodes.xml"); |
| 48 |
ArrayList<Node> nodes = new ArrayList<Node>(); |
| 49 |
|
| 50 |
get.addHeader("X-Auth-Token", Account.getAccount().getAuthToken());
|
| 51 |
|
| 52 |
try {
|
| 53 |
HttpResponse resp = httpclient.execute(get); |
| 54 |
BasicResponseHandler responseHandler = new BasicResponseHandler();
|
| 55 |
String body = responseHandler.handleResponse(resp);
|
| 56 |
if (resp.getStatusLine().getStatusCode() == 200 || resp.getStatusLine().getStatusCode() == 202) { |
| 57 |
NodesXMLParser nodesXMLParser = new NodesXMLParser();
|
| 58 |
SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser(); |
| 59 |
XMLReader xmlReader = saxParser.getXMLReader(); |
| 60 |
xmlReader.setContentHandler(nodesXMLParser); |
| 61 |
xmlReader.parse(new InputSource(new StringReader(body))); |
| 62 |
nodes = nodesXMLParser.getNodes(); |
| 63 |
} else {
|
| 64 |
CloudLoadBalancersFaultXMLParser parser = new CloudLoadBalancersFaultXMLParser();
|
| 65 |
SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser(); |
| 66 |
XMLReader xmlReader = saxParser.getXMLReader(); |
| 67 |
xmlReader.setContentHandler(parser); |
| 68 |
xmlReader.parse(new InputSource(new StringReader(body))); |
| 69 |
LoadBalancersException cse = parser.getException(); |
| 70 |
throw cse;
|
| 71 |
} |
| 72 |
} catch (ClientProtocolException e) {
|
| 73 |
LoadBalancersException cse = new LoadBalancersException();
|
| 74 |
cse.setMessage(e.getLocalizedMessage()); |
| 75 |
throw cse;
|
| 76 |
} catch (IOException e) { |
| 77 |
LoadBalancersException cse = new LoadBalancersException();
|
| 78 |
cse.setMessage(e.getLocalizedMessage()); |
| 79 |
throw cse;
|
| 80 |
} catch (ParserConfigurationException e) { |
| 81 |
LoadBalancersException cse = new LoadBalancersException();
|
| 82 |
cse.setMessage(e.getLocalizedMessage()); |
| 83 |
throw cse;
|
| 84 |
} catch (SAXException e) {
|
| 85 |
LoadBalancersException cse = new LoadBalancersException();
|
| 86 |
cse.setMessage(e.getLocalizedMessage()); |
| 87 |
throw cse;
|
| 88 |
} catch (FactoryConfigurationError e) { |
| 89 |
LoadBalancersException cse = new LoadBalancersException();
|
| 90 |
cse.setMessage(e.getLocalizedMessage()); |
| 91 |
throw cse;
|
| 92 |
} |
| 93 |
return nodes;
|
| 94 |
} |
| 95 |
|
| 96 |
public HttpBundle add(LoadBalancer loadBalancer, ArrayList<Node> nodes) throws CloudServersException { |
| 97 |
HttpResponse resp = null;
|
| 98 |
CustomHttpClient httpclient = new CustomHttpClient(context);
|
| 99 |
|
| 100 |
HttpPost post = new HttpPost(LoadBalancer.getRegionUrl(loadBalancer.getRegion()) + Account.getAccount().getAccountId() + "/loadbalancers/" + loadBalancer.getId() + "/nodes"); |
| 101 |
|
| 102 |
post.addHeader("X-Auth-Token", Account.getAccount().getAuthToken());
|
| 103 |
post.addHeader("Content-Type", "application/xml"); |
| 104 |
|
| 105 |
String xml = "<nodes xmlns=\"http://docs.openstack.org/loadbalancers/api/v1.0\"> "; |
| 106 |
for(int i = 0;i < nodes.size(); i++){ |
| 107 |
Node node = nodes.get(i); |
| 108 |
|
| 109 |
/*
|
| 110 |
* if the algorithm is not weighted then weight for the node will
|
| 111 |
* be null or ""
|
| 112 |
*/
|
| 113 |
if(node.getWeight() == null || node.getWeight().equals("")){ |
| 114 |
xml += "<node address=\"" + node.getAddress() + "\" port=\"" + node.getPort() + "\" condition=\"" + node.getCondition() + "\"/>"; |
| 115 |
} |
| 116 |
else{
|
| 117 |
xml += "<node address=\"" + node.getAddress() + "\" port=\"" + node.getPort() + "\" condition=\"" + node.getCondition() + "\" weight=\"" + node.getWeight() + "\"/>"; |
| 118 |
} |
| 119 |
} |
| 120 |
xml += " </nodes>";
|
| 121 |
|
| 122 |
StringEntity tmp = null;
|
| 123 |
try {
|
| 124 |
tmp = new StringEntity(xml);
|
| 125 |
} catch (UnsupportedEncodingException e) { |
| 126 |
CloudServersException cse = new CloudServersException();
|
| 127 |
cse.setMessage(e.getLocalizedMessage()); |
| 128 |
throw cse;
|
| 129 |
} |
| 130 |
|
| 131 |
post.setEntity(tmp); |
| 132 |
httpclient.removeRequestInterceptorByClass(RequestExpectContinue.class); |
| 133 |
|
| 134 |
HttpBundle bundle = new HttpBundle();
|
| 135 |
bundle.setCurlRequest(post); |
| 136 |
|
| 137 |
try {
|
| 138 |
resp = httpclient.execute(post); |
| 139 |
bundle.setHttpResponse(resp); |
| 140 |
} catch (ClientProtocolException e) {
|
| 141 |
CloudServersException cse = new CloudServersException();
|
| 142 |
cse.setMessage(e.getLocalizedMessage()); |
| 143 |
throw cse;
|
| 144 |
} catch (IOException e) { |
| 145 |
CloudServersException cse = new CloudServersException();
|
| 146 |
cse.setMessage(e.getLocalizedMessage()); |
| 147 |
throw cse;
|
| 148 |
} catch (FactoryConfigurationError e) { |
| 149 |
CloudServersException cse = new CloudServersException();
|
| 150 |
cse.setMessage(e.getLocalizedMessage()); |
| 151 |
throw cse;
|
| 152 |
} |
| 153 |
return bundle;
|
| 154 |
} |
| 155 |
|
| 156 |
public HttpBundle update(LoadBalancer loadBalancer, Node node, String condition, String weight) throws CloudServersException { |
| 157 |
HttpResponse resp = null;
|
| 158 |
CustomHttpClient httpclient = new CustomHttpClient(context);
|
| 159 |
|
| 160 |
HttpPut put = new HttpPut(LoadBalancer.getRegionUrl(loadBalancer.getRegion()) + Account.getAccount().getAccountId() + "/loadbalancers/" + loadBalancer.getId() + "/nodes/" + node.getId()); |
| 161 |
|
| 162 |
put.addHeader("X-Auth-Token", Account.getAccount().getAuthToken());
|
| 163 |
put.addHeader("Content-Type", "application/xml"); |
| 164 |
|
| 165 |
String xml;
|
| 166 |
//different request body if the nodes have weight
|
| 167 |
if(weight == null || weight.equals("")){ |
| 168 |
xml = "<node xmlns=\"http://docs.openstack.org/loadbalancers/api/v1.0\" condition=\"" + condition.toUpperCase() + "\"/>"; |
| 169 |
} |
| 170 |
else{
|
| 171 |
xml = "<node xmlns=\"http://docs.openstack.org/loadbalancers/api/v1.0\" condition=\"" + condition.toUpperCase() + "\" weight=\"" + weight + "\"" + "/>"; |
| 172 |
} |
| 173 |
|
| 174 |
StringEntity tmp = null;
|
| 175 |
try {
|
| 176 |
tmp = new StringEntity(xml);
|
| 177 |
} catch (UnsupportedEncodingException e) { |
| 178 |
CloudServersException cse = new CloudServersException();
|
| 179 |
cse.setMessage(e.getLocalizedMessage()); |
| 180 |
throw cse;
|
| 181 |
} |
| 182 |
|
| 183 |
put.setEntity(tmp); |
| 184 |
httpclient.removeRequestInterceptorByClass(RequestExpectContinue.class); |
| 185 |
|
| 186 |
HttpBundle bundle = new HttpBundle();
|
| 187 |
bundle.setCurlRequest(put); |
| 188 |
|
| 189 |
try {
|
| 190 |
resp = httpclient.execute(put); |
| 191 |
bundle.setHttpResponse(resp); |
| 192 |
} catch (ClientProtocolException e) {
|
| 193 |
CloudServersException cse = new CloudServersException();
|
| 194 |
cse.setMessage(e.getLocalizedMessage()); |
| 195 |
throw cse;
|
| 196 |
} catch (IOException e) { |
| 197 |
CloudServersException cse = new CloudServersException();
|
| 198 |
cse.setMessage(e.getLocalizedMessage()); |
| 199 |
throw cse;
|
| 200 |
} catch (FactoryConfigurationError e) { |
| 201 |
CloudServersException cse = new CloudServersException();
|
| 202 |
cse.setMessage(e.getLocalizedMessage()); |
| 203 |
throw cse;
|
| 204 |
} |
| 205 |
return bundle;
|
| 206 |
} |
| 207 |
|
| 208 |
public HttpBundle remove(LoadBalancer loadBalancer, Node node) throws CloudServersException { |
| 209 |
HttpResponse resp = null;
|
| 210 |
CustomHttpClient httpclient = new CustomHttpClient(context);
|
| 211 |
|
| 212 |
HttpDelete delete = new HttpDelete(LoadBalancer.getRegionUrl(loadBalancer.getRegion()) + Account.getAccount().getAccountId() + "/loadbalancers/" + loadBalancer.getId() + "/nodes/" + node.getId()); |
| 213 |
|
| 214 |
delete.addHeader("X-Auth-Token", Account.getAccount().getAuthToken());
|
| 215 |
|
| 216 |
httpclient.removeRequestInterceptorByClass(RequestExpectContinue.class); |
| 217 |
|
| 218 |
HttpBundle bundle = new HttpBundle();
|
| 219 |
bundle.setCurlRequest(delete); |
| 220 |
|
| 221 |
try {
|
| 222 |
resp = httpclient.execute(delete); |
| 223 |
bundle.setHttpResponse(resp); |
| 224 |
} catch (ClientProtocolException e) {
|
| 225 |
CloudServersException cse = new CloudServersException();
|
| 226 |
cse.setMessage(e.getLocalizedMessage()); |
| 227 |
throw cse;
|
| 228 |
} catch (IOException e) { |
| 229 |
CloudServersException cse = new CloudServersException();
|
| 230 |
cse.setMessage(e.getLocalizedMessage()); |
| 231 |
throw cse;
|
| 232 |
} catch (FactoryConfigurationError e) { |
| 233 |
CloudServersException cse = new CloudServersException();
|
| 234 |
cse.setMessage(e.getLocalizedMessage()); |
| 235 |
throw cse;
|
| 236 |
} |
| 237 |
return bundle;
|
| 238 |
} |
| 239 |
|
| 240 |
} |