import com.google.common.collect.Sets;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.InetSocketAddress;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.regex.Pattern;
+import javax.annotation.concurrent.ThreadSafe;
+import javax.management.InstanceNotFoundException;
+import javax.management.MBeanServerConnection;
+import javax.management.Notification;
+import javax.management.NotificationListener;
+import javax.management.ObjectName;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import org.opendaylight.controller.config.api.ConflictingVersionException;
import org.opendaylight.controller.config.persist.api.ConfigSnapshotHolder;
import org.opendaylight.controller.config.persist.api.Persister;
import org.opendaylight.controller.netconf.api.NetconfMessage;
import org.opendaylight.controller.netconf.api.jmx.NetconfJMXNotification;
import org.opendaylight.controller.netconf.client.NetconfClient;
import org.opendaylight.controller.netconf.client.NetconfClientDispatcher;
+import org.opendaylight.controller.netconf.util.xml.XMLNetconfUtil;
import org.opendaylight.controller.netconf.util.xml.XmlElement;
import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
import org.opendaylight.controller.netconf.util.xml.XmlUtil;
import org.w3c.dom.Element;
import org.xml.sax.SAXException;
-import javax.annotation.concurrent.ThreadSafe;
-import javax.management.InstanceNotFoundException;
-import javax.management.MBeanServerConnection;
-import javax.management.Notification;
-import javax.management.NotificationListener;
-import javax.management.ObjectName;
-import javax.net.ssl.SSLContext;
-import java.io.Closeable;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.InetSocketAddress;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Set;
-import java.util.regex.Pattern;
-
/**
* Responsible for listening for notifications from netconf containing latest
* committed configuration that should be persisted, and also for loading last
private final Persister persister;
private final MBeanServerConnection mbeanServer;
- private Long currentSessionId;
+
private final ObjectName on = DefaultCommitOperationMXBean.objectName;
if (maybeConfig.isPresent()) {
logger.debug("Last config found {}", persister);
+ ConflictingVersionException lastException = null;
+ pushLastConfigWithRetries(maybeConfig, lastException);
+
+ } else {
+ // this ensures that netconf is initialized, this is first
+ // connection
+ // this means we can register as listener for commit
+ registerToNetconf(Collections.<String>emptySet());
+ logger.info("No last config provided by backend storage {}", persister);
+ }
+ registerAsJMXListener();
+ }
+
+ private void pushLastConfigWithRetries(Optional<ConfigSnapshotHolder> maybeConfig, ConflictingVersionException lastException) throws InterruptedException {
+ int maxAttempts = 30;
+ for(int i = 0 ; i < maxAttempts; i++) {
registerToNetconf(maybeConfig.get().getCapabilities());
final String configSnapshot = maybeConfig.get().getConfigSnapshot();
logger.trace("Pushing following xml to netconf {}", configSnapshot);
try {
pushLastConfig(XmlUtil.readXmlToElement(configSnapshot));
+ return;
+ } catch(ConflictingVersionException e) {
+ closeClientAndDispatcher(netconfClient, netconfClientDispatcher);
+ lastException = e;
+ Thread.sleep(1000);
} catch (SAXException | IOException e) {
throw new IllegalStateException("Unable to load last config", e);
}
-
- } else {
- // this ensures that netconf is initialized, this is first
- // connection
- // this means we can register as listener for commit
- registerToNetconf(Collections.<String>emptySet());
-
- logger.info("No last config provided by backend storage {}", persister);
}
- registerAsJMXListener();
+ throw new IllegalStateException("Failed to push configuration, maximum attempt count has been reached: "
+ + maxAttempts, lastException);
}
private synchronized long registerToNetconf(Set<String> expectedCaps) throws InterruptedException {
int attempt = 0;
- while (true) {
+ long deadline = pollingStart + timeout;
+ while (System.currentTimeMillis() < deadline) {
attempt++;
-
- netconfClientDispatcher = new NetconfClientDispatcher(Optional.<SSLContext>absent(), nettyThreadgroup, nettyThreadgroup);
+ netconfClientDispatcher = new NetconfClientDispatcher(nettyThreadgroup, nettyThreadgroup);
try {
netconfClient = new NetconfClient(this.toString(), address, delay, netconfClientDispatcher);
} catch (IllegalStateException e) {
if (isSubset(currentCapabilities, expectedCaps)) {
logger.debug("Hello from netconf stable with {} capabilities", currentCapabilities);
- currentSessionId = netconfClient.getSessionId();
+ long currentSessionId = netconfClient.getSessionId();
logger.info("Session id received from netconf server: {}", currentSessionId);
return currentSessionId;
}
- if (System.currentTimeMillis() > pollingStart + timeout) {
- break;
- }
+
logger.debug("Polling hello from netconf, attempt {}, capabilities {}", attempt, currentCapabilities);
}
private void registerAsJMXListener() {
+ logger.trace("Called registerAsJMXListener");
try {
mbeanServer.addNotificationListener(on, this, null, null);
} catch (InstanceNotFoundException | IOException e) {
// Socket should not be closed at this point
// Activator unregisters this as JMX listener before close is called
- logger.debug("Received notification {}", notification);
+ logger.info("Received notification {}", notification);
if (notification instanceof CommitJMXNotification) {
try {
handleAfterCommitNotification((CommitJMXNotification) notification);
try {
persister.persistConfig(new CapabilityStrippingConfigSnapshotHolder(notification.getConfigSnapshot(),
notification.getCapabilities(), ignoredMissingCapabilityRegex));
- logger.debug("Configuration persisted successfully");
+ logger.info("Configuration persisted successfully");
} catch (IOException e) {
throw new RuntimeException("Unable to persist configuration snapshot", e);
}
return maybeConfigElement;
}
- private synchronized void pushLastConfig(Element xmlToBePersisted) {
+ private synchronized void pushLastConfig(Element xmlToBePersisted) throws ConflictingVersionException {
logger.info("Pushing last configuration to netconf");
StringBuilder response = new StringBuilder("editConfig response = {");
logger.trace("Detailed message {}", response);
}
- private void checkIsOk(XmlElement element, NetconfMessage responseMessage) {
+ static void checkIsOk(XmlElement element, NetconfMessage responseMessage) throws ConflictingVersionException {
if (element.getName().equals(XmlNetconfConstants.OK)) {
return;
- } else {
- if (element.getName().equals(XmlNetconfConstants.RPC_ERROR)) {
- logger.warn("Can not load last configuration, operation failed");
- throw new IllegalStateException("Can not load last configuration, operation failed: "
- + XmlUtil.toString(responseMessage.getDocument()));
+ }
+
+ if (element.getName().equals(XmlNetconfConstants.RPC_ERROR)) {
+ logger.warn("Can not load last configuration, operation failed");
+ // is it ConflictingVersionException ?
+ XPathExpression xPathExpression = XMLNetconfUtil.compileXPath("/netconf:rpc-reply/netconf:rpc-error/netconf:error-info/netconf:error");
+ String error = (String) XmlUtil.evaluateXPath(xPathExpression, element.getDomElement(), XPathConstants.STRING);
+ if (error!=null && error.contains(ConflictingVersionException.class.getCanonicalName())) {
+ throw new ConflictingVersionException(error);
}
- logger.warn("Can not load last configuration. Operation failed.");
- throw new IllegalStateException("Can not load last configuration. Operation failed: "
+ throw new IllegalStateException("Can not load last configuration, operation failed: "
+ XmlUtil.toString(responseMessage.getDocument()));
}
+
+ logger.warn("Can not load last configuration. Operation failed.");
+ throw new IllegalStateException("Can not load last configuration. Operation failed: "
+ + XmlUtil.toString(responseMessage.getDocument()));
}
private static NetconfMessage createEditConfigMessage(Element dataElement, String editConfigResourcename) {
Code Review / controller.git / blobdiff