/**
* Copyright 2013 Technische Universitat Wien (TUW), Distributed SystemsGroup
* E184. * This work was partially supported by the European Commission in terms
* of the CELAR FP7 project (FP7-ICT-2011-8 #317790).
*
* 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.
*/
/**
* Author : Georgiana Copil - e.copil@dsg.tuwien.ac.at
*/
package at.ac.tuwien.dsg.rSybl.cloudInteractionUnit.api;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import at.ac.tuwien.dsg.csdg.Node;
import at.ac.tuwien.dsg.csdg.elasticityInformation.ElasticityCapabilityInformation;
import at.ac.tuwien.dsg.csdg.elasticityInformation.ElasticityRequirement;
import at.ac.tuwien.dsg.csdg.elasticityInformation.elasticityRequirements.Strategy;
import at.ac.tuwien.dsg.csdg.outputProcessing.eventsNotification.CustomEvent;
import at.ac.tuwien.dsg.csdg.outputProcessing.eventsNotification.EventNotification;
import at.ac.tuwien.dsg.csdg.outputProcessing.eventsNotification.IEvent;
import at.ac.tuwien.dsg.rSybl.cloudInteractionUnit.enforcementPlugins.OfferedEnforcementCapabilities;
import at.ac.tuwien.dsg.rSybl.cloudInteractionUnit.enforcementPlugins.interfaces.EnforcementInterface;
import at.ac.tuwien.dsg.rSybl.cloudInteractionUnit.utils.Configuration;
import at.ac.tuwien.dsg.rSybl.cloudInteractionUnit.utils.RuntimeLogger;
import at.ac.tuwien.dsg.rSybl.dataProcessingUnit.api.MonitoringAPIInterface;
import at.ac.tuwien.dsg.rSybl.dataProcessingUnit.monitoringPlugins.melaPlugin.MELA_API;
public class EnforcementAPI {
private static HashMap<Node, ArrayList<Float>> avgRunningTimes = new HashMap<Node, ArrayList<Float>>();
private boolean executingControlAction = false;
private MonitoringAPIInterface monitoringAPIInterface;
private Node controlledService;
private EnforcementInterface offeredCapabilities;
private String className;
private int numberOfWaits = 0;
public EnforcementAPI() {
}
public boolean containsElasticityCapability(Node controlledService, String capability) {
return offeredCapabilities.containsElasticityCapability(controlledService, capability);
}
public void setControlledService(Node controlledService, String className) {
this.className = className;
this.controlledService = controlledService;
offeredCapabilities = OfferedEnforcementCapabilities.getInstance(
className, this.controlledService);
}
public void setControlledService(Node controlledService) {
this.controlledService = controlledService;
offeredCapabilities = OfferedEnforcementCapabilities
.getInstance(this.controlledService);
}
public void refreshControlService(Node cloudService) {
controlledService = cloudService;
}
public boolean isExecutingControlAction() {
return executingControlAction;
}
public boolean enforceAction(String target, String actionName, Node node, Object[] parameters,double violationDegree) {
Method foundMethod = null;
boolean res = false;
try {
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.contains(actionName.toLowerCase())) {
foundMethod = method;
}
}
if (foundMethod != null) {
Class[] partypes = new Class[parameters.length + 2];
Object[] myParameters = new Object[parameters.length + 2];
partypes[0] = Double.class;
myParameters[0] = violationDegree;
partypes[1] = Node.class;
myParameters[1] = node;
int i = 2;
for (Object o : parameters) {
partypes[i] = o.getClass();
myParameters[i] = o;
i += 1;
}
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException | SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
res = false;
}
} else {
String myAction="enforceAction";
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.equalsIgnoreCase(myAction.toLowerCase())) {
foundMethod = method;
}
}
Class[] partypes = new Class[2];
Object[] myParameters = new Object[2];
partypes[1] = String.class;
myParameters[1] = actionName;
partypes[0] = Node.class;
myParameters[0] = node;
int i = 2;
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(node);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
numberOfWaits=0;
while (!monitoringAPIInterface.isHealthy()) {
RuntimeLogger.logger.info("Waiting for action....");
numberOfWaits++;
if (numberOfWaits>10){
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(node.getId());
customEvent.setMessage(node.getId()+" not healthy for "+(numberOfWaits*15000)+" seconds.");
eventNotification.sendEvent(customEvent);
}
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(node);
// monitoringAPIInterface.enforcingActionStarted("ScaleIn", arg0);
this.numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
boolean myMetrics = true;
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(node.getId());
customEvent.setMessage(node.getId() + "not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
RuntimeLogger.logger.info("Waiting for action....");
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
} catch (SecurityException | ClassNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
return res;
}
public boolean enforceAction(String actionName, Node node,
Object[] parameters) {
Method foundMethod = null;
boolean res = false;
try {
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.contains(actionName.toLowerCase())) {
foundMethod = method;
}
}
if (foundMethod != null) {
Class[] partypes = new Class[parameters.length + 1];
Object[] myParameters = new Object[parameters.length + 1];
partypes[0] = Node.class;
myParameters[0] = node;
int i = 1;
for (Object o : parameters) {
partypes[i] = o.getClass();
myParameters[i] = o;
i += 1;
}
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException | SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
res = false;
}
} else {
String myAction="enforceAction";
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.equalsIgnoreCase(myAction.toLowerCase())) {
foundMethod = method;
}
}
Class[] partypes = new Class[2];
Object[] myParameters = new Object[2];
partypes[1] = String.class;
myParameters[1] = actionName;
partypes[0] = Node.class;
myParameters[0] = node;
int i = 2;
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(node);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
numberOfWaits=0;
while (!monitoringAPIInterface.isHealthy()) {
RuntimeLogger.logger.info("Waiting for action....");
numberOfWaits++;
if (numberOfWaits>10){
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(node.getId());
customEvent.setMessage(node.getId()+" not healthy for "+(numberOfWaits*15000)+" seconds.");
eventNotification.sendEvent(customEvent);
}
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(node);
// monitoringAPIInterface.enforcingActionStarted("ScaleIn", arg0);
numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
RuntimeLogger.logger.info("Waiting for action....");
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(node.getId());
customEvent.setMessage(node.getId() + "not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
} catch (SecurityException | ClassNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
return res;
}
public boolean scalein(Node arg0) {
boolean res = false;
if (arg0.getAllRelatedNodes().size() > 1) {
res = offeredCapabilities.scaleIn(arg0);
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(arg0);
numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(arg0.getId());
customEvent.setMessage(arg0.getId() + "not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
RuntimeLogger.logger.info("Waiting for action....");
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
// monitoringAPIInterface.enforcingActionEnded("ScaleIn", arg0);
RuntimeLogger.logger.info("Finished scaling in " + arg0.getId()
+ " ...");
} else {
res = false;
RuntimeLogger.logger.info("Number of nodes associated with "
+ arg0.getAllRelatedNodes().size());
}
return res;
}
public boolean scaleout(Node arg0) {
boolean res = true;
res = offeredCapabilities.scaleOut(arg0);
List<String> metrics = monitoringAPIInterface.getAvailableMetrics(arg0);
// monitoringAPIInterface.enforcingActionStarted("ScaleOut", arg0);
numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(arg0.getId());
customEvent.setMessage(arg0.getId() + "not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
RuntimeLogger.logger.info("Waiting for action....");
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
try {
Thread.sleep(60000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
// monitoringAPIInterface.enforcingActionEnded("ScaleOut", arg0);
RuntimeLogger.logger.info("Finished scaling out " + arg0.getId()
+ " ...");
return res;
}
public boolean scaleout(Node arg0,double violationDegree) {
boolean res = true;
res = offeredCapabilities.scaleOut(arg0,violationDegree);
List<String> metrics = monitoringAPIInterface.getAvailableMetrics(arg0);
// monitoringAPIInterface.enforcingActionStarted("ScaleOut", arg0);
numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(arg0.getId());
customEvent.setMessage(arg0.getId() + " not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
RuntimeLogger.logger.info("Waiting for action....");
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
try {
Thread.sleep(60000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
// monitoringAPIInterface.enforcingActionEnded("ScaleOut", arg0);
RuntimeLogger.logger.info("Finished scaling out " + arg0.getId()
+ " ...");
return res;
}
public boolean enforceAction(String actionName, Node e) {
Method foundMethod = null;
boolean res = false;
try {
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.contains(actionName.toLowerCase()) || actionName.toLowerCase().contains(method.getName().toLowerCase())) {
foundMethod = method;
}
}
if (foundMethod != null) {
Class[] partypes = new Class[1];
Object[] myParameters = new Object[1];
partypes[0] = Node.class;
myParameters[0] = e;
int i = 1;
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(e);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(e.getId());
customEvent.setMessage(e.getId() + " not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
RuntimeLogger.logger.info("Waiting for action....");
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
} else {
String myAction="enforceAction";
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.equalsIgnoreCase(myAction.toLowerCase())) {
foundMethod = method;
}
}
Class[] partypes = new Class[2];
Object[] myParameters = new Object[2];
partypes[1] = String.class;
myParameters[1] = actionName;
partypes[0] = Node.class;
myParameters[0] = e;
int i = 2;
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(e);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
numberOfWaits=0;
while (!monitoringAPIInterface.isHealthy()) {
RuntimeLogger.logger.info("Waiting for action....");
numberOfWaits++;
if (numberOfWaits>10){
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(e.getId());
customEvent.setMessage(e.getId()+" not healthy for "+(numberOfWaits*15000)+" seconds.");
eventNotification.sendEvent(customEvent);
}
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
}
} catch (SecurityException | ClassNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
return res;
}
public boolean enforceAction( String actionName, Node e,double violationDegree) {
if (className == null) {
className = Configuration.getEnforcementPlugin();
}
Method foundMethod = null;
boolean res = false;
try {
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.equalsIgnoreCase(actionName.toLowerCase())) {
foundMethod = method;
}
}
if (foundMethod != null) {
Class[] partypes = new Class[2];
Object[] myParameters = new Object[2];
partypes[0] = Double.class;
myParameters[0] = violationDegree;
partypes[1] = Node.class;
myParameters[1] = e;
int i = 2;
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(e);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
numberOfWaits=0;
while (!monitoringAPIInterface.isHealthy()) {
RuntimeLogger.logger.info("Waiting for action....");
numberOfWaits++;
if (numberOfWaits>10){
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(e.getId());
customEvent.setMessage(e.getId()+" not healthy for "+(numberOfWaits*15000)+" seconds.");
eventNotification.sendEvent(customEvent);
}
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
} else {
String myAction="enforceAction";
for (Method method : Class.forName(className).getMethods()) {
if (method.getName().toLowerCase()
.equalsIgnoreCase(myAction.toLowerCase())) {
foundMethod = method;
}
}
Class[] partypes = new Class[2];
Object[] myParameters = new Object[2];
partypes[1] = String.class;
myParameters[1] = actionName;
partypes[0] = Node.class;
myParameters[0] = e;
int i = 2;
Method actionMethod;
try {
actionMethod = Class.forName(className).getMethod(
foundMethod.getName(), partypes);
res = (boolean) actionMethod.invoke(offeredCapabilities,
myParameters);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(e);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
numberOfWaits=0;
while (!monitoringAPIInterface.isHealthy()) {
RuntimeLogger.logger.info("Waiting for action....");
numberOfWaits++;
if (numberOfWaits>10){
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(e.getId());
customEvent.setMessage(e.getId()+" not healthy for "+(numberOfWaits*15000)+" seconds.");
eventNotification.sendEvent(customEvent);
}
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
}
} catch (SecurityException | ClassNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
res = false;
}
return res;
}
public void setMonitoringPlugin(MonitoringAPIInterface monitoringInterface) {
monitoringAPIInterface = monitoringInterface;
offeredCapabilities.setMonitoringPlugin(monitoringInterface);
}
public void undeployService(Node service) {
offeredCapabilities.undeployService(service);
}
public Node getControlledService() {
return offeredCapabilities.getControlledService();
}
public void dynamicallyScale(Node service, Strategy strategy) {
offeredCapabilities.diagonallyScale(service, strategy);
}
public void submitElasticityRequirements(
ArrayList<ElasticityRequirement> description) {
// TODO Auto-generated method stub
}
// TODO depending on the protocol specified and the parameters, call the
// capability = default parameter - Service Part ID
public boolean enforceElasticityCapability(ElasticityCapabilityInformation capability,
Node e) {
boolean res = false;
if (e != null) {
RuntimeLogger.logger.info("Enforcing capability " + capability.getApiMethod()
+ " ...");
if (capability.getCallType().toLowerCase().contains("rest")) {
URL url = null;
HttpURLConnection connection = null;
try {
url = new URL(capability.getEndpoint());
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setInstanceFollowRedirects(false);
if (capability.getCallType().toLowerCase().contains("post")) {
connection.setRequestMethod("POST");
} else {
connection.setRequestMethod("PUT");
}
// write message body
OutputStream os = connection.getOutputStream();
if (capability.getParameter().size() == 0) {
connection.setRequestProperty("Content-Type",
"text/plain");
connection.setRequestProperty("Accept", "text/plain");
os.write(e.getId().getBytes());
} else {
// tODO: add parameters here parameter=x
}
os.flush();
os.close();
res = true;
InputStream errorStream = connection.getErrorStream();
if (errorStream != null) {
BufferedReader reader = new BufferedReader(
new InputStreamReader(errorStream));
String line;
while ((line = reader.readLine()) != null) {
Logger.getLogger(MELA_API.class.getName()).log(
Level.SEVERE, line);
res = false;
}
}
InputStream inputStream = connection.getInputStream();
if (inputStream != null) {
BufferedReader reader = new BufferedReader(
new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
Logger.getLogger(MELA_API.class.getName()).log(
Level.SEVERE, line);
}
}
} catch (Exception ex) {
Logger.getLogger(MELA_API.class.getName()).log(
Level.SEVERE, ex.getMessage(), e);
} finally {
if (connection != null) {
connection.disconnect();
}
}
} else {
if (capability.getCallType().toLowerCase().contains("plugin")) {
// res = offeredCapabilities.enforceAction(
// capability.getEndpoint(), e);
}
}
RuntimeLogger.logger.info("Finished enforcing action "
+ capability.getName() + " on the node " + e + " ...");
}
return res;
}
public void setExecutingControlAction(boolean executingControlAction) {
this.executingControlAction = executingControlAction;
}
public boolean scalein(Node arg0, double violationDegree) {
boolean res = false;
if (arg0.getAllRelatedNodes().size() > 1) {
res = offeredCapabilities.scaleIn(arg0,violationDegree);
List<String> metrics = monitoringAPIInterface
.getAvailableMetrics(arg0);
numberOfWaits = 0;
while (!monitoringAPIInterface.isHealthy()) {
numberOfWaits++;
if (numberOfWaits > 10) {
EventNotification eventNotification = EventNotification.getEventNotification();
CustomEvent customEvent = new CustomEvent();
customEvent.setCloudServiceID(this.getControlledService().getId());
customEvent.setType(IEvent.Type.UNHEALTHY_SP);
customEvent.setTarget(arg0.getId());
customEvent.setMessage(arg0.getId() + "not healthy for " + (numberOfWaits * 15000) + " seconds.");
eventNotification.sendEvent(customEvent);
}
RuntimeLogger.logger.info("Waiting for action....");
try {
Thread.sleep(15000);
} catch (InterruptedException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
}
// monitoringAPIInterface.enforcingActionEnded("ScaleIn", arg0);
RuntimeLogger.logger.info("Finished scaling in " + arg0.getId()
+ " ...");
} else {
res = false;
RuntimeLogger.logger.info("Number of nodes associated with "
+ arg0.getAllRelatedNodes().size());
}
return res;
}
public boolean enforceAction(String actionName, String parameter) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
public boolean enforceAction(String actionName, Node e, String parameter) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
public boolean enforceAction(String actionName, Node e, String parameter1, String parameter2) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}