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.v3po.translate.impl.read.CompositeChildReader;
   4 import io.fd.honeycomb.v3po.translate.impl.read.CompositeListReader;
   5 import io.fd.honeycomb.v3po.translate.impl.read.CompositeRootReader;
   6 import io.fd.honeycomb.v3po.translate.read.ChildReader;
   7 import io.fd.honeycomb.v3po.translate.util.KeepaliveReaderWrapper;
   8 import io.fd.honeycomb.v3po.translate.util.RWUtils;
   9 import io.fd.honeycomb.v3po.translate.util.read.CloseableReader;
  10 import io.fd.honeycomb.v3po.translate.util.read.ReflexiveChildReaderCustomizer;
  11 import io.fd.honeycomb.v3po.translate.util.read.ReflexiveRootReaderCustomizer;
  12 import io.fd.honeycomb.v3po.translate.v3po.util.ReadTimeoutException;
  13 import io.fd.honeycomb.v3po.translate.v3po.vppstate.BridgeDomainCustomizer;
  14 import io.fd.honeycomb.v3po.translate.v3po.vppstate.L2FibEntryCustomizer;
  15 import io.fd.honeycomb.v3po.translate.v3po.vppstate.VersionCustomizer;
  16 import java.lang.management.ManagementFactory;
  17 import java.util.ArrayList;
  18 import java.util.List;
  19 import javax.management.Attribute;
  20 import javax.management.InstanceNotFoundException;
  21 import javax.management.ObjectName;
  22 import org.opendaylight.controller.config.api.ConflictingVersionException;
  23 import org.opendaylight.controller.config.api.ValidationException;
  24 import org.opendaylight.controller.config.util.ConfigRegistryJMXClient;
  25 import org.opendaylight.controller.config.util.ConfigTransactionJMXClient;
  26 import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.vpp.jvpp.cfg.rev160406.VppJvppImplModule;
  27 import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.vpp.jvpp.cfg.rev160406.VppJvppImplModuleFactory;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppState;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppStateBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.L2FibTable;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.L2FibTableBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.l2.fib.table.L2FibEntry;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.l2.fib.table.L2FibEntryBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.l2.fib.attributes.l2.fib.table.L2FibEntryKey;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.BridgeDomains;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.BridgeDomainsBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.Version;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.bridge.domains.BridgeDomain;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.bridge.domains.BridgeDomainBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.vpp.state.bridge.domains.BridgeDomainKey;
  41 import org.opendaylight.yangtools.yang.binding.ChildOf;
  42 import org.openvpp.jvpp.future.FutureJVpp;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 public class VppStateHoneycombReaderModule extends
  47     org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.v3po2vpp.rev160406.AbstractVppStateHoneycombReaderModule {
  48
  49     private static final Logger LOG = LoggerFactory.getLogger(VppStateHoneycombReaderModule.class);
  50
  51     public VppStateHoneycombReaderModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  52                                          org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
  53         super(identifier, dependencyResolver);
  54     }
  55
  56     public VppStateHoneycombReaderModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  57                                          org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
  58                                          org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.v3po2vpp.rev160406.VppStateHoneycombReaderModule oldModule,
  59                                          java.lang.AutoCloseable oldInstance) {
  60         super(identifier, dependencyResolver, oldModule, oldInstance);
  61     }
  62
  63     @Override
  64     public void customValidation() {
  65         // add custom validation form module attributes here.
  66     }
  67
  68     @Override
  69     public java.lang.AutoCloseable createInstance() {
  70         final FutureJVpp vppApi = getVppJvppDependency();
  71
  72         ChildReader<Version> versionReader = new CompositeChildReader<>(Version.class, new VersionCustomizer(vppApi));
  73         // Wrap with keepalive reader to detect connection issues
  74         // TODO keepalive reader wrapper relies on VersionReaderCustomizer (to perform timeout on reads)
  75         // Once readers+customizers are asynchronous, pull the timeout to keepalive executor so that keepalive wrapper
  76         // is truly generic
  77         versionReader = new KeepaliveReaderWrapper<>(versionReader, getKeepaliveExecutorDependency().getExecutor(),
  78             ReadTimeoutException.class, 30, () -> reinitializeJVpp(reinitializationCounter));
  79
  80         final CompositeListReader<L2FibEntry, L2FibEntryKey, L2FibEntryBuilder> l2FibEntryReader =
  81             new CompositeListReader<>(L2FibEntry.class,
  82                 new L2FibEntryCustomizer(vppApi,
  83                     getBridgeDomainContextVppStateDependency(), getInterfaceContextVppStateDependency()));
  84
  85         final ChildReader<L2FibTable> l2FibTableReader = new CompositeChildReader<>(
  86             L2FibTable.class,
  87             RWUtils.singletonChildReaderList(l2FibEntryReader),
  88             new ReflexiveChildReaderCustomizer<>(L2FibTableBuilder.class));
  89
  90         final CompositeListReader<BridgeDomain, BridgeDomainKey, BridgeDomainBuilder> bridgeDomainReader =
  91             new CompositeListReader<>(BridgeDomain.class,
  92                 RWUtils.singletonChildReaderList((ChildReader) l2FibTableReader),
  93                 new BridgeDomainCustomizer(vppApi,
  94                     getBridgeDomainContextVppStateDependency()));
  95
  96         final ChildReader<BridgeDomains> bridgeDomainsReader = new CompositeChildReader<>(
  97             BridgeDomains.class,
  98             RWUtils.singletonChildReaderList(bridgeDomainReader),
  99             new ReflexiveChildReaderCustomizer<>(BridgeDomainsBuilder.class));
 100
 101         final List<ChildReader<? extends ChildOf<VppState>>> childVppReaders = new ArrayList<>();
 102         childVppReaders.add(versionReader);
 103         childVppReaders.add(bridgeDomainsReader);
 104
 105         return new CloseableReader<>(new CompositeRootReader<>(
 106             VppState.class,
 107             childVppReaders,
 108             RWUtils.emptyAugReaderList(),
 109             new ReflexiveRootReaderCustomizer<>(VppStateBuilder.class)));
 110     }
 111
 112     private static long reinitializationCounter;
 113     private static final long reinitializationLimit = 10;
 114
 115     /**
 116      * In case we detect connection issues with VPP, reinitialize JVpp
 117      */
 118     private void reinitializeJVpp(final long currentAttempt) {
 119         // FIXME https://jira.fd.io/browse/HONEYCOMB-78 This code correctly re-initializes all the components
 120         // starting with jvpp, but jvpp reconnect fails. Test in a JVpp test and then from C
 121         LOG.info("Reinitializing JVpp, attempt: {}", currentAttempt);
 122
 123         final long nextAttempt = currentAttempt + 1;
 124         if (nextAttempt - reinitializationCounter > reinitializationLimit) {
 125             LOG.error("Too many JVpp reinitialization attempts. Unable to reinitialize JVpp in {} attempts. Giving up",
 126                 reinitializationLimit);
 127             throw new IllegalStateException("Too many JVpp reinitialization attempts. Unable to reinitialize JVpp in "
 128                 + reinitializationLimit + " attempts. Giving up");
 129         }
 130
 131         final ConfigRegistryJMXClient cfgRegistryClient =
 132             ConfigRegistryJMXClient.createWithoutNotifications(ManagementFactory.getPlatformMBeanServer());
 133
 134         final ObjectName objectName = cfgRegistryClient.beginConfig();
 135         final ConfigTransactionJMXClient txClient = cfgRegistryClient.getConfigTransactionClient(objectName);
 136
 137         final ObjectName jvppOn;
 138         try {
 139             final String attributeName = VppJvppImplModule.descriptionJmxAttribute.getAttributeName();
 140             final String factoryName = VppJvppImplModuleFactory.NAME;
 141             jvppOn = txClient.lookupConfigBean(factoryName, "vpp-jvpp");
 142
 143             // Change configuration attribute of JVpp to trigger full reinitialization here using config subsystem
 144             // TODO improve this when switching from karaf in planned minimal distribution
 145             txClient.setAttribute(jvppOn, attributeName, new Attribute(attributeName,
 146                 Long.toString(nextAttempt)));
 147
 148             txClient.validateConfig();
 149             cfgRegistryClient.commitConfig(txClient.getObjectName());
 150             LOG.info("JVpp reinitialized successfully");
 151         } catch (InstanceNotFoundException | ValidationException e) {
 152             LOG.error("Unable to reinitialize JVpp. Honeycomb will not work properly from now on.", e);
 153             throw new IllegalStateException("Unable to find jvpp instance in config subsystem. " +
 154                 "Unable to reinitialize JVpp", e);
 155         } catch (ConflictingVersionException e) {
 156             LOG.debug("Conflict changes occurred, retrying", e);
 157             // Just retry until there's no conflicting change in progress
 158             reinitializeJVpp(nextAttempt);
 159         }
 160
 161         reinitializationCounter = nextAttempt;
 162     }
 163 }