/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2013, 2017 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
*/
package org.opendaylight.controller.config.manager.impl.dependencyresolver;
-import static java.lang.String.format;
-
import com.google.common.base.Preconditions;
import java.util.HashSet;
import java.util.LinkedHashSet;
* by creating proxy that would throw exception if those methods are called
* during validation. Tracks dependencies for ordering purposes.
*/
-final class DependencyResolverImpl implements DependencyResolver,
- Comparable<DependencyResolverImpl> {
+public final class DependencyResolverImpl implements DependencyResolver, Comparable<DependencyResolverImpl> {
private static final Logger LOG = LoggerFactory.getLogger(DependencyResolverImpl.class);
private final ModulesHolder modulesHolder;
private final ServiceReferenceReadableRegistry readableRegistry;
private final BindingContextProvider bindingContextProvider;
private final String transactionName;
- private final MBeanServer mBeanServer;
+ private final MBeanServer beanServer;
+ private Integer maxDependencyDepth;
- DependencyResolverImpl(ModuleIdentifier currentModule,
- TransactionStatus transactionStatus, ModulesHolder modulesHolder,
- ServiceReferenceReadableRegistry readableRegistry, BindingContextProvider bindingContextProvider,
- String transactionName, MBeanServer mBeanServer) {
+ public DependencyResolverImpl(final ModuleIdentifier currentModule, final TransactionStatus transactionStatus,
+ final ModulesHolder modulesHolder, final ServiceReferenceReadableRegistry readableRegistry,
+ final BindingContextProvider bindingContextProvider, final String transactionName,
+ final MBeanServer beanServer) {
this.bindingContextProvider = bindingContextProvider;
this.name = currentModule;
this.transactionStatus = transactionStatus;
this.modulesHolder = modulesHolder;
this.readableRegistry = readableRegistry;
this.transactionName = transactionName;
- this.mBeanServer = mBeanServer;
+ this.beanServer = beanServer;
}
/**
* {@inheritDoc}
*/
- //TODO: check for cycles
+ // TODO: check for cycles
@Override
- public void validateDependency(
- Class<? extends AbstractServiceInterface> expectedServiceInterface,
- ObjectName dependentReadOnlyON, JmxAttribute jmxAttribute) {
+ public void validateDependency(final Class<? extends AbstractServiceInterface> expectedServiceInterface,
+ final ObjectName dependentReadOnlyON, final JmxAttribute jmxAttribute) {
- transactionStatus.checkNotCommitted();
+ this.transactionStatus.checkNotCommitted();
if (expectedServiceInterface == null) {
- throw new NullPointerException(
- "Parameter 'expectedServiceInterface' is null");
+ throw new NullPointerException("Parameter 'expectedServiceInterface' is null");
}
if (jmxAttribute == null) {
throw new NullPointerException("Parameter 'jmxAttribute' is null");
}
JmxAttributeValidationException.checkNotNull(dependentReadOnlyON,
- "is null, expected dependency implementing "
- + expectedServiceInterface, jmxAttribute
- );
-
+ "is null, expected dependency implementing " + expectedServiceInterface, jmxAttribute);
// check that objectName belongs to this transaction - this should be
// stripped
// in DynamicWritableWrapper
- boolean hasTransaction = ObjectNameUtil
- .getTransactionName(dependentReadOnlyON) != null;
- JmxAttributeValidationException.checkCondition(
- hasTransaction == false,
- format("ObjectName should not contain "
- + "transaction name. %s set to %s. ", jmxAttribute,
- dependentReadOnlyON
- ), jmxAttribute
- );
+ final boolean hasTransaction = ObjectNameUtil.getTransactionName(dependentReadOnlyON) != null;
+ JmxAttributeValidationException.checkCondition(!hasTransaction,
+ String.format("ObjectName should not contain " + "transaction name. %s set to %s. ", jmxAttribute,
+ dependentReadOnlyON),
+ jmxAttribute);
- ObjectName newDependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
+ final ObjectName newDependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
- ModuleIdentifier moduleIdentifier = ObjectNameUtil.fromON(newDependentReadOnlyON, ObjectNameUtil
- .TYPE_MODULE);
+ final ModuleIdentifier moduleIdentifier = ObjectNameUtil.fromON(newDependentReadOnlyON,
+ ObjectNameUtil.TYPE_MODULE);
- ModuleFactory foundFactory = modulesHolder.findModuleFactory(moduleIdentifier, jmxAttribute);
+ final ModuleFactory foundFactory = this.modulesHolder.findModuleFactory(moduleIdentifier, jmxAttribute);
- boolean implementsSI = foundFactory
- .isModuleImplementingServiceInterface(expectedServiceInterface);
- if (implementsSI == false) {
- String message = format(
+ final boolean implementsSI = foundFactory.isModuleImplementingServiceInterface(expectedServiceInterface);
+ if (!implementsSI) {
+ final String message = String.format(
"Found module factory does not expose expected service interface. "
+ "Module name is %s : %s, expected service interface %s, dependent module ON %s , "
+ "attribute %s",
- foundFactory.getImplementationName(), foundFactory,
- expectedServiceInterface, newDependentReadOnlyON,
- jmxAttribute
- );
+ foundFactory.getImplementationName(), foundFactory, expectedServiceInterface,
+ newDependentReadOnlyON, jmxAttribute);
throw new JmxAttributeValidationException(message, jmxAttribute);
}
synchronized (this) {
- dependencies.add(moduleIdentifier);
+ this.dependencies.add(moduleIdentifier);
}
}
// translate from serviceref to module ON
- private ObjectName translateServiceRefIfPossible(ObjectName dependentReadOnlyON) {
+ private ObjectName translateServiceRefIfPossible(final ObjectName dependentReadOnlyON) {
ObjectName translatedDependentReadOnlyON = dependentReadOnlyON;
if (ObjectNameUtil.isServiceReference(translatedDependentReadOnlyON)) {
- String serviceQName = ObjectNameUtil.getServiceQName(translatedDependentReadOnlyON);
- String refName = ObjectNameUtil.getReferenceName(translatedDependentReadOnlyON);
- translatedDependentReadOnlyON = ObjectNameUtil.withoutTransactionName( // strip again of transaction name
- readableRegistry.lookupConfigBeanByServiceInterfaceName(serviceQName, refName));
+ final String serviceQName = ObjectNameUtil.getServiceQName(translatedDependentReadOnlyON);
+ final String refName = ObjectNameUtil.getReferenceName(translatedDependentReadOnlyON);
+ // strip again of transaction name
+ translatedDependentReadOnlyON = ObjectNameUtil.withoutTransactionName(
+ this.readableRegistry.lookupConfigBeanByServiceInterfaceName(serviceQName, refName));
}
return translatedDependentReadOnlyON;
}
- /**
- * {@inheritDoc}
- */
- //TODO: check for cycles
+ // TODO: check for cycles
@Override
- public <T> T resolveInstance(Class<T> expectedType, ObjectName dependentReadOnlyON,
- JmxAttribute jmxAttribute) {
- Module module = resolveModuleInstance(dependentReadOnlyON, jmxAttribute);
+ public <T> T resolveInstance(final Class<T> expectedType, final ObjectName dependentReadOnlyON,
+ final JmxAttribute jmxAttribute) {
+ final Module module = resolveModuleInstance(dependentReadOnlyON, jmxAttribute);
synchronized (this) {
- dependencies.add(module.getIdentifier());
+ this.dependencies.add(module.getIdentifier());
}
- AutoCloseable instance = module.getInstance();
+ final AutoCloseable instance = module.getInstance();
if (instance == null) {
- String message = format(
- "Error while %s resolving instance %s. getInstance() returned null. "
- + "Expected type %s , attribute %s", name,
- module.getIdentifier(), expectedType, jmxAttribute
- );
+ final String message = String.format(
+ "Error while %s resolving instance %s. getInstance() returned null. Expected type %s, attribute %s",
+ this.name, module.getIdentifier(), expectedType, jmxAttribute);
throw new JmxAttributeValidationException(message, jmxAttribute);
}
try {
return expectedType.cast(instance);
- } catch (ClassCastException e) {
- String message = format(
- "Instance cannot be cast to expected type. Instance class is %s , "
- + "expected type %s , attribute %s",
- instance.getClass(), expectedType, jmxAttribute
- );
+ } catch (final ClassCastException e) {
+ final String message = String.format(
+ "Instance cannot be cast to expected type. Instance class is %s, expected type %s , attribute %s",
+ instance.getClass(), expectedType, jmxAttribute);
throw new JmxAttributeValidationException(message, e, jmxAttribute);
}
}
- private Module resolveModuleInstance(ObjectName dependentReadOnlyON,
- JmxAttribute jmxAttribute) {
- Preconditions.checkArgument(dependentReadOnlyON != null ,"dependentReadOnlyON");
+ private Module resolveModuleInstance(final ObjectName dependentReadOnlyON, final JmxAttribute jmxAttribute) {
+ Preconditions.checkArgument(dependentReadOnlyON != null, "dependentReadOnlyON");
Preconditions.checkArgument(jmxAttribute != null, "jmxAttribute");
- ObjectName translatedDependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
- transactionStatus.checkCommitStarted();
- transactionStatus.checkNotCommitted();
+ final ObjectName translatedDependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
+ this.transactionStatus.checkCommitStarted();
+ this.transactionStatus.checkNotCommitted();
- ModuleIdentifier dependentModuleIdentifier = ObjectNameUtil.fromON(
- translatedDependentReadOnlyON, ObjectNameUtil.TYPE_MODULE);
+ final ModuleIdentifier dependentModuleIdentifier = ObjectNameUtil.fromON(translatedDependentReadOnlyON,
+ ObjectNameUtil.TYPE_MODULE);
- return Preconditions.checkNotNull(modulesHolder.findModule(dependentModuleIdentifier, jmxAttribute));
+ return Preconditions.checkNotNull(this.modulesHolder.findModule(dependentModuleIdentifier, jmxAttribute));
}
@Override
- public boolean canReuseDependency(ObjectName objectName, JmxAttribute jmxAttribute) {
+ public boolean canReuseDependency(final ObjectName objectName, final JmxAttribute jmxAttribute) {
Preconditions.checkNotNull(objectName);
Preconditions.checkNotNull(jmxAttribute);
- Module currentModule = resolveModuleInstance(objectName, jmxAttribute);
- ModuleIdentifier identifier = currentModule.getIdentifier();
- ModuleInternalTransactionalInfo moduleInternalTransactionalInfo = modulesHolder.findModuleInternalTransactionalInfo(identifier);
+ final Module currentModule = resolveModuleInstance(objectName, jmxAttribute);
+ final ModuleIdentifier identifier = currentModule.getIdentifier();
+ final ModuleInternalTransactionalInfo moduleInternalTransactionalInfo = this.modulesHolder
+ .findModuleInternalTransactionalInfo(identifier);
- if(moduleInternalTransactionalInfo.hasOldModule()) {
- Module oldModule = moduleInternalTransactionalInfo.getOldInternalInfo().getReadableModule().getModule();
+ if (moduleInternalTransactionalInfo.hasOldModule()) {
+ final Module oldModule = moduleInternalTransactionalInfo.getOldInternalInfo().getReadableModule()
+ .getModule();
return currentModule.canReuse(oldModule);
}
return false;
}
@Override
- public <T extends BaseIdentity> Class<? extends T> resolveIdentity(IdentityAttributeRef identityRef, Class<T> expectedBaseClass) {
+ public <T extends BaseIdentity> Class<? extends T> resolveIdentity(final IdentityAttributeRef identityRef,
+ final Class<T> expectedBaseClass) {
final QName qName = QName.create(identityRef.getqNameOfIdentity());
- Class<?> deserialized = bindingContextProvider.getBindingContext().getIdentityClass(qName);
+ final Class<?> deserialized = this.bindingContextProvider.getBindingContext().getIdentityClass(qName);
if (deserialized == null) {
throw new IllegalStateException("Unable to retrieve identity class for " + qName + ", null response from "
- + bindingContextProvider.getBindingContext());
+ + this.bindingContextProvider.getBindingContext());
}
if (expectedBaseClass.isAssignableFrom(deserialized)) {
return (Class<T>) deserialized;
- } else {
- LOG.error("Cannot resolve class of identity {} : deserialized class {} is not a subclass of {}.",
- identityRef, deserialized, expectedBaseClass);
- throw new IllegalArgumentException("Deserialized identity " + deserialized + " cannot be cast to " + expectedBaseClass);
}
+ LOG.error("Cannot resolve class of identity {} : deserialized class {} is not a subclass of {}.", identityRef,
+ deserialized, expectedBaseClass);
+ throw new IllegalArgumentException(
+ "Deserialized identity " + deserialized + " cannot be cast to " + expectedBaseClass);
}
@Override
- public <T extends BaseIdentity> void validateIdentity(IdentityAttributeRef identityRef, Class<T> expectedBaseClass, JmxAttribute jmxAttribute) {
- try {
- resolveIdentity(identityRef, expectedBaseClass);
- } catch (Exception e) {
- throw JmxAttributeValidationException.wrap(e, jmxAttribute);
- }
+ public <T extends BaseIdentity> void validateIdentity(final IdentityAttributeRef identityRef,
+ final Class<T> expectedBaseClass, final JmxAttribute jmxAttribute) {
+ resolveIdentity(identityRef, expectedBaseClass);
}
@Override
- public int compareTo(DependencyResolverImpl o) {
- transactionStatus.checkCommitStarted();
- return Integer.compare(getMaxDependencyDepth(),
- o.getMaxDependencyDepth());
+ public int compareTo(final DependencyResolverImpl dependencyResolverImpl) {
+ this.transactionStatus.checkCommitStarted();
+ return Integer.compare(getMaxDependencyDepth(), dependencyResolverImpl.getMaxDependencyDepth());
}
- private Integer maxDependencyDepth;
-
int getMaxDependencyDepth() {
- if (maxDependencyDepth == null) {
+ if (this.maxDependencyDepth == null) {
throw new IllegalStateException("Dependency depth was not computed");
}
- return maxDependencyDepth;
+ return this.maxDependencyDepth;
}
- void countMaxDependencyDepth(DependencyResolverManager manager) {
+ void countMaxDependencyDepth(final DependencyResolverManager manager) {
// We can calculate the dependency after second phase commit was started
- // Second phase commit starts after validation and validation adds the dependencies into the dependency resolver, which are necessary for the calculation
- // FIXME generated code for abstract module declares validate method as non-final
- // Overriding the validate would cause recreate every time instead of reuse + also possibly wrong close order if there is another module depending
- transactionStatus.checkCommitStarted();
- if (maxDependencyDepth == null) {
- maxDependencyDepth = getMaxDepth(this, manager,
- new LinkedHashSet<ModuleIdentifier>());
+ // Second phase commit starts after validation and validation adds the
+ // dependencies into the dependency resolver, which are necessary for the
+ // calculation
+ // FIXME generated code for abstract module declares validate method as
+ // non-final
+ // Overriding the validate would cause recreate every time instead of reuse +
+ // also possibly wrong close order if there is another module depending
+ this.transactionStatus.checkCommitStarted();
+ if (this.maxDependencyDepth == null) {
+ this.maxDependencyDepth = getMaxDepth(this, manager, new LinkedHashSet<>());
}
}
- private static int getMaxDepth(DependencyResolverImpl impl,
- DependencyResolverManager manager,
- LinkedHashSet<ModuleIdentifier> chainForDetectingCycles) {
+ private static int getMaxDepth(final DependencyResolverImpl impl, final DependencyResolverManager manager,
+ final LinkedHashSet<ModuleIdentifier> chainForDetectingCycles) {
int maxDepth = 0;
- LinkedHashSet<ModuleIdentifier> chainForDetectingCycles2 = new LinkedHashSet<>(
- chainForDetectingCycles);
+ final LinkedHashSet<ModuleIdentifier> chainForDetectingCycles2 = new LinkedHashSet<>(chainForDetectingCycles);
chainForDetectingCycles2.add(impl.getIdentifier());
- for (ModuleIdentifier dependencyName : impl.dependencies) {
- DependencyResolverImpl dependentDRI = manager
- .getOrCreate(dependencyName);
+ for (final ModuleIdentifier dependencyName : impl.dependencies) {
+ final DependencyResolverImpl dependentDRI = manager.getOrCreate(dependencyName);
if (chainForDetectingCycles2.contains(dependencyName)) {
- throw new IllegalStateException(format(
- "Cycle detected, %s contains %s",
- chainForDetectingCycles2, dependencyName));
+ throw new IllegalStateException(
+ String.format("Cycle detected, %s contains %s", chainForDetectingCycles2, dependencyName));
}
int subDepth;
if (dependentDRI.maxDependencyDepth != null) {
subDepth = dependentDRI.maxDependencyDepth;
} else {
- subDepth = getMaxDepth(dependentDRI, manager,
- chainForDetectingCycles2);
+ subDepth = getMaxDepth(dependentDRI, manager, chainForDetectingCycles2);
dependentDRI.maxDependencyDepth = subDepth;
}
if (subDepth + 1 > maxDepth) {
@Override
public ModuleIdentifier getIdentifier() {
- return name;
+ return this.name;
}
@Override
- public Object getAttribute(ObjectName name, String attribute)
+ public Object getAttribute(final ObjectName name, final String attribute)
throws MBeanException, AttributeNotFoundException, InstanceNotFoundException, ReflectionException {
ObjectName newName = translateServiceRefIfPossible(name);
// add transaction name
- newName = ObjectNameUtil.withTransactionName(newName, transactionName);
- return mBeanServer.getAttribute(newName, attribute);
+ newName = ObjectNameUtil.withTransactionName(newName, this.transactionName);
+ return this.beanServer.getAttribute(newName, attribute);
}
@Override
- public <T> T newMXBeanProxy(ObjectName name, Class<T> interfaceClass) {
+ public <T> T newMXBeanProxy(final ObjectName name, final Class<T> interfaceClass) {
ObjectName newName = translateServiceRefIfPossible(name);
// add transaction name
- newName = ObjectNameUtil.withTransactionName(newName, transactionName);
- return JMX.newMXBeanProxy(mBeanServer, newName, interfaceClass);
+ newName = ObjectNameUtil.withTransactionName(newName, this.transactionName);
+ return JMX.newMXBeanProxy(this.beanServer, newName, interfaceClass);
}
}