Merge "Cleanup RpcRoutingStrategy definition"
[controller.git] / opendaylight / config / config-manager / src / main / java / org / opendaylight / controller / config / manager / impl / dependencyresolver / DependencyResolverImpl.java
index ec9678fd2d7df3545f15bc5a8fa0e7b8129b5760..a7a67d3d16c734267fd123472880dc598e5f0b28 100644 (file)
@@ -7,6 +7,19 @@
  */
 package org.opendaylight.controller.config.manager.impl.dependencyresolver;
 
+import static java.lang.String.format;
+
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.Set;
+import javax.annotation.concurrent.GuardedBy;
+import javax.management.AttributeNotFoundException;
+import javax.management.InstanceNotFoundException;
+import javax.management.JMX;
+import javax.management.MBeanException;
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
+import javax.management.ReflectionException;
 import org.opendaylight.controller.config.api.DependencyResolver;
 import org.opendaylight.controller.config.api.IdentityAttributeRef;
 import org.opendaylight.controller.config.api.JmxAttribute;
@@ -25,22 +38,14 @@ import org.opendaylight.yangtools.yang.data.impl.codec.IdentityCodec;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.annotation.concurrent.GuardedBy;
-import javax.management.ObjectName;
-import java.util.HashSet;
-import java.util.LinkedHashSet;
-import java.util.Set;
-
-import static java.lang.String.format;
-
 /**
  * Protect {@link org.opendaylight.controller.config.spi.Module#getInstance()}
  * 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> {
-    private static final Logger logger = LoggerFactory.getLogger(DependencyResolverImpl.class);
+        Comparable<DependencyResolverImpl> {
+    private static final Logger LOGGER = LoggerFactory.getLogger(DependencyResolverImpl.class);
 
     private final ModulesHolder modulesHolder;
     private final ModuleIdentifier name;
@@ -49,15 +54,20 @@ final class DependencyResolverImpl implements DependencyResolver,
     private final Set<ModuleIdentifier> dependencies = new HashSet<>();
     private final ServiceReferenceReadableRegistry readableRegistry;
     private final CodecRegistry codecRegistry;
+    private final String transactionName;
+    private final MBeanServer mBeanServer;
 
     DependencyResolverImpl(ModuleIdentifier currentModule,
                            TransactionStatus transactionStatus, ModulesHolder modulesHolder,
-                           ServiceReferenceReadableRegistry readableRegistry, CodecRegistry codecRegistry) {
+                           ServiceReferenceReadableRegistry readableRegistry, CodecRegistry codecRegistry,
+                           String transactionName, MBeanServer mBeanServer) {
         this.codecRegistry = codecRegistry;
         this.name = currentModule;
         this.transactionStatus = transactionStatus;
         this.modulesHolder = modulesHolder;
         this.readableRegistry = readableRegistry;
+        this.transactionName = transactionName;
+        this.mBeanServer = mBeanServer;
     }
 
     /**
@@ -74,13 +84,14 @@ final class DependencyResolverImpl implements DependencyResolver,
             throw new NullPointerException(
                     "Parameter 'expectedServiceInterface' is null");
         }
-        if (jmxAttribute == null)
+        if (jmxAttribute == null) {
             throw new NullPointerException("Parameter 'jmxAttribute' is null");
+        }
 
         JmxAttributeValidationException.checkNotNull(dependentReadOnlyON,
                 "is null, expected dependency implementing "
-                        + expectedServiceInterface, jmxAttribute);
-
+                        + expectedServiceInterface, jmxAttribute
+        );
 
 
         // check that objectName belongs to this transaction - this should be
@@ -91,12 +102,14 @@ final class DependencyResolverImpl implements DependencyResolver,
         JmxAttributeValidationException.checkCondition(
                 hasTransaction == false,
                 format("ObjectName should not contain "
-                        + "transaction name. %s set to %s. ", jmxAttribute,
-                        dependentReadOnlyON), jmxAttribute);
+                                + "transaction name. %s set to %s. ", jmxAttribute,
+                        dependentReadOnlyON
+                ), jmxAttribute
+        );
 
-        dependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
+        ObjectName newDependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
 
-        ModuleIdentifier moduleIdentifier = ObjectNameUtil.fromON(dependentReadOnlyON, ObjectNameUtil
+        ModuleIdentifier moduleIdentifier = ObjectNameUtil.fromON(newDependentReadOnlyON, ObjectNameUtil
                 .TYPE_MODULE);
 
         ModuleFactory foundFactory = modulesHolder.findModuleFactory(moduleIdentifier, jmxAttribute);
@@ -109,8 +122,9 @@ final class DependencyResolverImpl implements DependencyResolver,
                             + "Module name is %s : %s, expected service interface %s, dependent module ON %s , "
                             + "attribute %s",
                     foundFactory.getImplementationName(), foundFactory,
-                    expectedServiceInterface, dependentReadOnlyON,
-                    jmxAttribute);
+                    expectedServiceInterface, newDependentReadOnlyON,
+                    jmxAttribute
+            );
             throw new JmxAttributeValidationException(message, jmxAttribute);
         }
         synchronized (this) {
@@ -118,15 +132,16 @@ final class DependencyResolverImpl implements DependencyResolver,
         }
     }
 
-    // transalate from serviceref to module ON
+    // translate from serviceref to module ON
     private ObjectName translateServiceRefIfPossible(ObjectName dependentReadOnlyON) {
-        if (ObjectNameUtil.isServiceReference(dependentReadOnlyON)) {
-            String serviceQName = ObjectNameUtil.getServiceQName(dependentReadOnlyON);
-            String refName = ObjectNameUtil.getReferenceName(dependentReadOnlyON);
-            dependentReadOnlyON = ObjectNameUtil.withoutTransactionName( // strip again of transaction name
+        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));
         }
-        return dependentReadOnlyON;
+        return translatedDependentReadOnlyON;
     }
 
     /**
@@ -135,18 +150,18 @@ final class DependencyResolverImpl implements DependencyResolver,
     //TODO: check for cycles
     @Override
     public <T> T resolveInstance(Class<T> expectedType, ObjectName dependentReadOnlyON,
-            JmxAttribute jmxAttribute) {
+                                 JmxAttribute jmxAttribute) {
         if (expectedType == null || dependentReadOnlyON == null || jmxAttribute == null) {
             throw new IllegalArgumentException(format(
                     "Null parameters not allowed, got %s %s %s", expectedType,
                     dependentReadOnlyON, jmxAttribute));
         }
-        dependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
+        ObjectName translatedDependentReadOnlyON = translateServiceRefIfPossible(dependentReadOnlyON);
         transactionStatus.checkCommitStarted();
         transactionStatus.checkNotCommitted();
 
         ModuleIdentifier dependentModuleIdentifier = ObjectNameUtil.fromON(
-                dependentReadOnlyON, ObjectNameUtil.TYPE_MODULE);
+                translatedDependentReadOnlyON, ObjectNameUtil.TYPE_MODULE);
         Module module = modulesHolder.findModule(dependentModuleIdentifier,
                 jmxAttribute);
         synchronized (this) {
@@ -157,17 +172,18 @@ final class DependencyResolverImpl implements DependencyResolver,
             String message = format(
                     "Error while %s resolving instance %s. getInstance() returned null. "
                             + "Expected type %s , attribute %s", name,
-                    dependentModuleIdentifier, expectedType, jmxAttribute);
+                    dependentModuleIdentifier, expectedType, jmxAttribute
+            );
             throw new JmxAttributeValidationException(message, jmxAttribute);
         }
         try {
-            T result = expectedType.cast(instance);
-            return result;
+            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);
+                    instance.getClass(), expectedType, jmxAttribute
+            );
             throw new JmxAttributeValidationException(message, e, jmxAttribute);
         }
     }
@@ -178,13 +194,13 @@ final class DependencyResolverImpl implements DependencyResolver,
         IdentityCodec<?> identityCodec = codecRegistry.getIdentityCodec();
         Class<? extends BaseIdentity> deserialized = identityCodec.deserialize(qName);
         if (deserialized == null) {
-            throw new RuntimeException("Unable to retrieve identity class for " + qName + ", null response from "
+            throw new IllegalStateException("Unable to retrieve identity class for " + qName + ", null response from "
                     + codecRegistry);
         }
         if (expectedBaseClass.isAssignableFrom(deserialized)) {
             return (Class<T>) deserialized;
         } else {
-            logger.error("Cannot resolve class of identity {} : deserialized class {} is not a subclass of {}.",
+            LOGGER.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);
         }
@@ -194,7 +210,7 @@ final class DependencyResolverImpl implements DependencyResolver,
     public <T extends BaseIdentity> void validateIdentity(IdentityAttributeRef identityRef, Class<T> expectedBaseClass, JmxAttribute jmxAttribute) {
         try {
             resolveIdentity(identityRef, expectedBaseClass);
-        } catch(Exception e) {
+        } catch (Exception e) {
             throw JmxAttributeValidationException.wrap(e, jmxAttribute);
         }
     }
@@ -215,7 +231,7 @@ final class DependencyResolverImpl implements DependencyResolver,
         return maxDependencyDepth;
     }
 
-    public void countMaxDependencyDepth(DependencyResolverManager manager) {
+    void countMaxDependencyDepth(DependencyResolverManager manager) {
         transactionStatus.checkCommitted();
         if (maxDependencyDepth == null) {
             maxDependencyDepth = getMaxDepth(this, manager,
@@ -224,8 +240,8 @@ final class DependencyResolverImpl implements DependencyResolver,
     }
 
     private static int getMaxDepth(DependencyResolverImpl impl,
-            DependencyResolverManager manager,
-            LinkedHashSet<ModuleIdentifier> chainForDetectingCycles) {
+                                   DependencyResolverManager manager,
+                                   LinkedHashSet<ModuleIdentifier> chainForDetectingCycles) {
         int maxDepth = 0;
         LinkedHashSet<ModuleIdentifier> chainForDetectingCycles2 = new LinkedHashSet<>(
                 chainForDetectingCycles);
@@ -258,4 +274,21 @@ final class DependencyResolverImpl implements DependencyResolver,
     public ModuleIdentifier getIdentifier() {
         return name;
     }
+
+    @Override
+    public Object getAttribute(ObjectName name, String attribute)
+            throws MBeanException, AttributeNotFoundException, InstanceNotFoundException, ReflectionException {
+        ObjectName newName = translateServiceRefIfPossible(name);
+        // add transaction name
+        newName = ObjectNameUtil.withTransactionName(newName, transactionName);
+        return mBeanServer.getAttribute(newName, attribute);
+    }
+
+    @Override
+    public <T> T newMXBeanProxy(ObjectName name, Class<T> interfaceClass) {
+        ObjectName newName = translateServiceRefIfPossible(name);
+        // add transaction name
+        newName = ObjectNameUtil.withTransactionName(newName, transactionName);
+        return JMX.newMXBeanProxy(mBeanServer, newName, interfaceClass);
+    }
 }