gerrit.fd Code Review - hc2vpp.git/blob

   1 package org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.v3po2vpp.rev160406;
   2
   3 import io.fd.honeycomb.translate.impl.read.GenericListReader;
   4 import io.fd.honeycomb.translate.impl.read.GenericReader;
   5 import io.fd.honeycomb.translate.read.ReaderFactory;
   6 import io.fd.honeycomb.translate.read.registry.ModifiableReaderRegistryBuilder;
   7 import io.fd.honeycomb.translate.util.read.KeepaliveReaderWrapper;
   8 import io.fd.honeycomb.translate.v3po.util.NamingContext;
   9 import io.fd.honeycomb.translate.v3po.util.ReadTimeoutException;
  10 import io.fd.honeycomb.translate.v3po.vppstate.BridgeDomainCustomizer;
  11 import io.fd.honeycomb.translate.v3po.vppstate.L2FibEntryCustomizer;
  12 import io.fd.honeycomb.translate.v3po.vppstate.VersionCustomizer;
  13 import java.lang.management.ManagementFactory;
  14 import javax.management.Attribute;
  15 import javax.management.InstanceNotFoundException;
  16 import javax.management.ObjectName;
  17 import org.opendaylight.controller.config.api.ConflictingVersionException;
  18 import org.opendaylight.controller.config.api.ValidationException;
  19 import org.opendaylight.controller.config.threadpool.ScheduledThreadPool;
  20 import org.opendaylight.controller.config.util.ConfigRegistryJMXClient;
  21 import org.opendaylight.controller.config.util.ConfigTransactionJMXClient;
  22 import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.vpp.jvpp.cfg.rev160406.VppJvppImplModule;
  23 import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.vpp.jvpp.cfg.rev160406.VppJvppImplModuleFactory;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppState;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppStateBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.L2FibTable;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.L2FibTableBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.l2.fib.table.L2FibEntry;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.BridgeDomains;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.BridgeDomainsBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.Version;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.bridge.domains.BridgeDomain;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.openvpp.jvpp.future.FutureJVpp;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 public class VppStateHoneycombReaderModule extends
  39     org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.v3po2vpp.rev160406.AbstractVppStateHoneycombReaderModule {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(VppStateHoneycombReaderModule.class);
  42
  43     public VppStateHoneycombReaderModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  44                                          org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
  45         super(identifier, dependencyResolver);
  46     }
  47
  48     public VppStateHoneycombReaderModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  49                                          org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
  50                                          org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.v3po2vpp.rev160406.VppStateHoneycombReaderModule oldModule,
  51                                          java.lang.AutoCloseable oldInstance) {
  52         super(identifier, dependencyResolver, oldModule, oldInstance);
  53     }
  54
  55     @Override
  56     public void customValidation() {
  57         // add custom validation form module attributes here.
  58     }
  59
  60     @Override
  61     public java.lang.AutoCloseable createInstance() {
  62         return new VppStateHoneycombReaderFactory(getVppJvppDependency(),
  63                 getInterfaceContextVppStateDependency(),
  64                 getBridgeDomainContextVppStateDependency(),
  65                 getKeepaliveExecutorDependency());
  66     }
  67
  68     private static long reinitializationCounter;
  69     private static final long reinitializationLimit = 10;
  70
  71     /**
  72      * In case we detect connection issues with VPP, reinitialize JVpp.
  73      */
  74     private static void reinitializeJVpp(final long currentAttempt) {
  75         // FIXME https://jira.fd.io/browse/HONEYCOMB-78 This code correctly re-initializes all the components
  76         // starting with jvpp, but jvpp reconnect fails. Test in a JVpp test and then from C
  77         LOG.info("Reinitializing JVpp, attempt: {}", currentAttempt);
  78
  79         final long nextAttempt = currentAttempt + 1;
  80         if (nextAttempt - reinitializationCounter > reinitializationLimit) {
  81             LOG.error("Too many JVpp reinitialization attempts. Unable to reinitialize JVpp in {} attempts. Giving up",
  82                 reinitializationLimit);
  83             throw new IllegalStateException("Too many JVpp reinitialization attempts. Unable to reinitialize JVpp in "
  84                 + reinitializationLimit + " attempts. Giving up");
  85         }
  86
  87         final ConfigRegistryJMXClient cfgRegistryClient =
  88             ConfigRegistryJMXClient.createWithoutNotifications(ManagementFactory.getPlatformMBeanServer());
  89
  90         final ObjectName objectName = cfgRegistryClient.beginConfig();
  91         final ConfigTransactionJMXClient txClient = cfgRegistryClient.getConfigTransactionClient(objectName);
  92
  93         final ObjectName jvppOn;
  94         try {
  95             final String attributeName = VppJvppImplModule.descriptionJmxAttribute.getAttributeName();
  96             final String factoryName = VppJvppImplModuleFactory.NAME;
  97             jvppOn = txClient.lookupConfigBean(factoryName, "vpp-jvpp");
  98
  99             // Change configuration attribute of JVpp to trigger full reinitialization here using config subsystem
 100             // TODO improve this when switching from karaf in planned minimal distribution
 101             txClient.setAttribute(jvppOn, attributeName, new Attribute(attributeName,
 102                 Long.toString(nextAttempt)));
 103
 104             txClient.validateConfig();
 105             cfgRegistryClient.commitConfig(txClient.getObjectName());
 106             LOG.info("JVpp reinitialized successfully");
 107         } catch (InstanceNotFoundException | ValidationException e) {
 108             LOG.error("Unable to reinitialize JVpp. Honeycomb will not work properly from now on.", e);
 109             throw new IllegalStateException("Unable to find jvpp instance in config subsystem. Unable to reinitialize JVpp", e);
 110         } catch (ConflictingVersionException e) {
 111             LOG.debug("Conflict changes occurred, retrying", e);
 112             // Just retry until there's no conflicting change in progress
 113             reinitializeJVpp(nextAttempt);
 114         }
 115
 116         reinitializationCounter = nextAttempt;
 117     }
 118
 119
 120     private static final class VppStateHoneycombReaderFactory implements ReaderFactory, AutoCloseable {
 121
 122         private final FutureJVpp jVpp;
 123         private final NamingContext ifcCtx;
 124         private final NamingContext bdCtx;
 125         private final ScheduledThreadPool keepaliveExecutor;
 126
 127         public VppStateHoneycombReaderFactory(final FutureJVpp jVpp,
 128                                               final NamingContext ifcCtx,
 129                                               final NamingContext bdCtx,
 130                                               final ScheduledThreadPool keepaliveExecutorDependency) {
 131             this.jVpp = jVpp;
 132             this.ifcCtx = ifcCtx;
 133             this.bdCtx = bdCtx;
 134             this.keepaliveExecutor = keepaliveExecutorDependency;
 135         }
 136
 137         @Override
 138         public void init(final ModifiableReaderRegistryBuilder registry) {
 139             // VppState(Structural)
 140             final InstanceIdentifier<VppState> vppStateId = InstanceIdentifier.create(VppState.class);
 141             registry.addStructuralReader(vppStateId, VppStateBuilder.class);
 142             //  Version
 143             // Wrap with keepalive reader to detect connection issues
 144             // TODO keepalive reader wrapper relies on VersionReaderCustomizer (to perform timeout on reads)
 145             // Once readers+customizers are asynchronous, pull the timeout to keepalive executor so that keepalive wrapper
 146             // is truly generic
 147             registry.add(new KeepaliveReaderWrapper<>(
 148                     new GenericReader<>(vppStateId.child(Version.class), new VersionCustomizer(jVpp)),
 149                     keepaliveExecutor.getExecutor(), ReadTimeoutException.class, 30,
 150                     () -> reinitializeJVpp(reinitializationCounter)));
 151             //  BridgeDomains(Structural)
 152             final InstanceIdentifier<BridgeDomains> bridgeDomainsId = vppStateId.child(BridgeDomains.class);
 153             registry.addStructuralReader(bridgeDomainsId, BridgeDomainsBuilder.class);
 154             //   BridgeDomain
 155             final InstanceIdentifier<BridgeDomain> bridgeDomainId = bridgeDomainsId.child(BridgeDomain.class);
 156             registry.add(new GenericListReader<>(bridgeDomainId, new BridgeDomainCustomizer(jVpp, bdCtx)));
 157             //    L2FibTable(Structural)
 158             final InstanceIdentifier<L2FibTable> l2FibTableId = bridgeDomainId.child(L2FibTable.class);
 159             registry.addStructuralReader(l2FibTableId, L2FibTableBuilder.class);
 160             //     L2FibEntry
 161             registry.add(new GenericListReader<>(l2FibTableId.child(L2FibEntry.class),
 162                     new L2FibEntryCustomizer(jVpp, bdCtx, ifcCtx)));
 163         }
 164     }
 165 }