package org.onap.dmaap.datarouter.provisioning;
-import java.io.FileInputStream;
import java.io.IOException;
-import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
-import java.util.Properties;
import java.util.Set;
import java.util.Timer;
import java.util.TimerTask;
import java.util.TreeSet;
-import javax.servlet.ServletException;
-
import org.apache.log4j.Logger;
import org.json.JSONException;
import org.json.JSONObject;
import org.onap.dmaap.datarouter.provisioning.utils.*;
/**
- * This class handles the two timers (described in R1 Design Notes), and takes care of issuing
- * the GET to each node of the URL to "poke".
+ * This class handles the two timers (described in R1 Design Notes), and takes care of issuing the GET to each node of
+ * the URL to "poke".
*
* @author Robert Eby
* @version $Id: Poker.java,v 1.11 2014/01/08 16:13:47 eby Exp $
*/
public class Poker extends TimerTask {
- /** Template used to generate the URL to issue the GET against */
- public static final String POKE_URL_TEMPLATE = "http://%s/internal/fetchProv";
-
-
+ /**
+ * Template used to generate the URL to issue the GET against
+ */
+ private static final String POKE_URL_TEMPLATE = "http://%s/internal/fetchProv";
- /** This is a singleton -- there is only one Poker object in the server */
- private static Poker p;
+ /**
+ * This is a singleton -- there is only one Poker object in the server
+ */
+ private static Poker poker;
/**
* Get the singleton Poker object.
+ *
* @return the Poker
*/
public static synchronized Poker getPoker() {
- if (p == null)
- p = new Poker();
- return p;
+ if (poker == null) {
+ poker = new Poker();
+ }
+ return poker;
}
private long timer1;
private long timer2;
- private Timer rolex;
- private String this_pod; // DNS name of this machine
+ private String thisPod; // DNS name of this machine
private Logger logger;
- private String provstring;
+ private String provString;
private Poker() {
timer1 = timer2 = 0;
- rolex = new Timer();
+ Timer rolex = new Timer();
logger = Logger.getLogger("org.onap.dmaap.datarouter.provisioning.internal");
try {
- this_pod = InetAddress.getLocalHost().getHostName();
+ thisPod = InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
- this_pod = "*UNKNOWN*"; // not a major problem
+ thisPod = "*UNKNOWN*"; // not a major problem
}
- provstring = buildProvisioningString();
+ provString = buildProvisioningString();
rolex.scheduleAtFixedRate(this, 0L, 1000L); // Run once a second to check the timers
}
/**
* This method sets the two timers described in the design notes.
- * @param t1 the first timer controls how long to wait after a provisioning request before poking each node
- * This timer can be reset if it has not "gone off".
+ *
+ * @param t1 the first timer controls how long to wait after a provisioning request before poking each node This
+ * timer can be reset if it has not "gone off".
* @param t2 the second timer set the outer bound on how long to wait. It cannot be reset.
*/
public void setTimers(long t1, long t2) {
- synchronized (this_pod) {
- if (timer1 == 0 || t1 > timer1)
+ synchronized (thisPod) {
+ if (timer1 == 0 || t1 > timer1) {
timer1 = t1;
- if (timer2 == 0)
+ }
+ if (timer2 == 0) {
timer2 = t2;
+ }
}
- if (logger.isDebugEnabled())
+ if (logger.isDebugEnabled()) {
logger.debug("Poker timers set to " + timer1 + " and " + timer2);
+ }
}
/**
* Return the last provisioning string built.
+ *
* @return the last provisioning string built.
*/
public String getProvisioningString() {
- return provstring;
+ return provString;
}
/**
- * The method to run at the predefined interval (once per second). This method checks
- * to see if either of the two timers has expired, and if so, will rebuild the provisioning
- * string, and poke all the nodes and other PODs. The timers are then reset to 0.
+ * The method to run at the predefined interval (once per second). This method checks to see if either of the two
+ * timers has expired, and if so, will rebuild the provisioning string, and poke all the nodes and other PODs. The
+ * timers are then reset to 0.
*/
@Override
public void run() {
if (timer1 > 0) {
long now = System.currentTimeMillis();
boolean fire = false;
- synchronized (this_pod) {
+ synchronized (thisPod) {
if (now > timer1 || now > timer2) {
timer1 = timer2 = 0;
fire = true;
}
}
if (fire) {
- // Rebuild the prov string
- provstring = buildProvisioningString();
-
- // Only the active POD should poke nodes, etc.
- boolean active = SynchronizerTask.getSynchronizer().isActive();
- if (active) {
- // Poke all the DR nodes
- for (String n : BaseServlet.getNodes()) {
- pokeNode(n);
- }
- // Poke the pod that is not us
- for (String n : BaseServlet.getPods()) {
- if (n.length() > 0 && !n.equals(this_pod))
- pokeNode(n);
- }
- }
+ pokeNodes();
}
}
} catch (Exception e) {
- logger.warn("PROV0020: Caught exception in Poker: "+e);
+ logger.warn("PROV0020: Caught exception in Poker: " + e);
e.printStackTrace();
}
}
- private void pokeNode(final String nodename) {
- logger.debug("PROV0012 Poking node " + nodename + " ...");
- Runnable r = new Runnable() {
- @Override
- public void run() {
- try {
- String u = String.format(POKE_URL_TEMPLATE, nodename+":"+DB.HTTP_PORT);
- URL url = new URL(u);
- HttpURLConnection conn = (HttpURLConnection) url.openConnection();
- conn.setConnectTimeout(60000); //Fixes for Itrack DATARTR-3, poke timeout
- conn.connect();
- conn.getContentLength(); // Force the GET through
- conn.disconnect();
- } catch (MalformedURLException e) {
- logger.warn("PROV0013 MalformedURLException Error poking node "+nodename+": " + e.getMessage());
- } catch (IOException e) {
- logger.warn("PROV0013 IOException Error poking node "+nodename+": " + e.getMessage());
+ private void pokeNodes() {
+ // Rebuild the prov string
+ provString = buildProvisioningString();
+ // Only the active POD should poke nodes, etc.
+ boolean active = SynchronizerTask.getSynchronizer().isActive();
+ if (active) {
+ // Poke all the DR nodes
+ for (String n : BaseServlet.getNodes()) {
+ pokeNode(n);
+ }
+ // Poke the pod that is not us
+ for (String n : BaseServlet.getPods()) {
+ if (n.length() > 0 && !n.equals(thisPod)) {
+ pokeNode(n);
}
}
+ }
+ }
+
+ private void pokeNode(final String nodename) {
+ logger.debug("PROV0012 Poking node " + nodename + " ...");
+ String nodeUrl = String.format(POKE_URL_TEMPLATE, nodename + ":" + DB.HTTP_PORT);
+ Runnable r = () -> {
+ try {
+ URL url = new URL(nodeUrl);
+ HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+ conn.setConnectTimeout(60000); //Fixes for Itrack DATARTR-3, poke timeout
+ conn.connect();
+ conn.getContentLength(); // Force the GET through
+ conn.disconnect();
+ } catch (MalformedURLException e) {
+ logger.warn("PROV0013 MalformedURLException Error poking node at " + nodeUrl + " : " + e.getMessage());
+ } catch (IOException e) {
+ logger.warn("PROV0013 IOException Error poking node at " + nodeUrl + " : " + e.getMessage());
+ }
};
-// Thread t = new Thread(r);
-// t.start();
r.run();
}
- @SuppressWarnings("unused")
+
private String buildProvisioningString() {
StringBuilder sb = new StringBuilder("{\n");
}
sb.append("\n],\n");
-
// Append Subscriptions to the string
pfx = "\n";
sb.append("\"subscriptions\": [");
for (Subscription s : Subscription.getAllSubscriptions()) {
sb.append(pfx);
- if(s!=null)
- sb.append(s.asJSONObject().toString());
+ if (s != null) {
+ sb.append(s.asJSONObject().toString());
+ }
pfx = ",\n";
}
sb.append("\n],\n");
// Append Parameters to the string
pfx = "\n";
sb.append("\"parameters\": {");
- Map<String,String> props = Parameters.getParameters();
+ Map<String, String> props = Parameters.getParameters();
Set<String> ivals = new HashSet<String>();
String intv = props.get("_INT_VALUES");
- if (intv != null)
+ if (intv != null) {
ivals.addAll(Arrays.asList(intv.split("\\|")));
+ }
for (String key : new TreeSet<String>(props.keySet())) {
String v = props.get(key);
sb.append(pfx);
for (EgressRoute eg : EgressRoute.getAllEgressRoutes()) {
sb.append(pfx);
String t = eg.asJSONObject().toString();
- t = t.substring(1, t.length()-1);
+ t = t.substring(1, t.length() - 1);
sb.append(t);
pfx = ",\n";
}
sb.append("\n}");
// Convert to string and verify it is valid JSON
- String provstring = sb.toString();
+ String tempProvString = sb.toString();
try {
- new JSONObject(new JSONTokener(provstring));
+ new JSONObject(new JSONTokener(tempProvString));
} catch (JSONException e) {
- logger.warn("PROV0016: Possible invalid prov string: "+e);
+ logger.warn("PROV0016: Possible invalid prov string: " + e);
}
- return provstring;
+ return tempProvString;
}
+
private String quote(String s) {
StringBuilder sb = new StringBuilder();
for (char ch : s.toCharArray()) {
Code Review / dmaap / datarouter.git / blobdiff