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Diffstat (limited to 'branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/wire/jdk/JDKInboundInvocationHandler.java')
-rw-r--r-- | branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/wire/jdk/JDKInboundInvocationHandler.java | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/wire/jdk/JDKInboundInvocationHandler.java b/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/wire/jdk/JDKInboundInvocationHandler.java deleted file mode 100644 index d0d82484e3..0000000000 --- a/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/wire/jdk/JDKInboundInvocationHandler.java +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.core.wire.jdk; - -import java.io.Externalizable; -import java.io.IOException; -import java.io.ObjectInput; -import java.io.ObjectOutput; -import java.lang.reflect.InvocationHandler; -import java.lang.reflect.Method; -import java.util.HashMap; -import java.util.Map; - -import org.apache.tuscany.spi.component.AtomicComponent; -import org.apache.tuscany.spi.component.ReactivationException; -import org.apache.tuscany.spi.component.SCAExternalizable; -import org.apache.tuscany.spi.component.TargetInvocationException; -import org.apache.tuscany.spi.component.WorkContext; -import org.apache.tuscany.spi.wire.AbstractInboundInvocationHandler; -import org.apache.tuscany.spi.wire.InboundInvocationChain; -import org.apache.tuscany.spi.wire.InboundWire; -import org.apache.tuscany.spi.wire.TargetInvoker; -import org.apache.tuscany.spi.wire.WireInvocationHandler; - -import org.apache.tuscany.core.wire.WireUtils; - - -/** - * Receives a request from a proxy and performs an invocation on an {@link org.apache.tuscany.spi.wire.InboundWire} via - * an {@link InboundInvocationChain} - * - * @version $Rev$ $Date$ - */ -public final class JDKInboundInvocationHandler extends AbstractInboundInvocationHandler - implements WireInvocationHandler, InvocationHandler, Externalizable, SCAExternalizable { - private static final long serialVersionUID = -307902641125881043L; - - /* - * an association of an operation to chain holder. The holder contains the invocation chain - * and a local clone of the master TargetInvoker. TargetInvokers will be cloned by the handler and placed in the - * holder if they are cacheable. This allows optimizations such as avoiding target resolution when a source refers - * to a target of greater scope since the target reference can be maintained by the invoker. When a target invoker - * is not cacheable, the master associated with the wire chains will be used. - */ - private transient Map<Method, ChainHolder> chains; - private transient WorkContext context; - private String serviceName; - private Class<?> interfaze; - - /** - * Constructor used for deserialization only - */ - public JDKInboundInvocationHandler() { - } - - public JDKInboundInvocationHandler(Class<?> interfaze, InboundWire wire, WorkContext context) { - this.context = context; - this.serviceName = wire.getServiceName(); - this.interfaze = interfaze; - init(interfaze, wire); - } - - public void setWorkContext(WorkContext context) { - this.context = context; - } - - /** - * Dispatches a client request made on a proxy - */ - public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { - ChainHolder holder = chains.get(method); - if (holder == null) { - if (method.getParameterTypes().length == 0 && "toString".equals(method.getName())) { - return "[Proxy - " + Integer.toHexString(hashCode()) + "]"; - } else if (method.getDeclaringClass().equals(Object.class) - && "equals".equals(method.getName())) { - // TODO implement - throw new UnsupportedOperationException(); - } else if (Object.class.equals(method.getDeclaringClass()) - && "hashCode".equals(method.getName())) { - return hashCode(); - // TODO beter hash algorithm - } - throw new TargetInvocationException("Operation not configured", method.getName()); - } - InboundInvocationChain chain = holder.chain; - TargetInvoker invoker; - if (holder.cachedInvoker == null) { - assert chain != null; - if (chain.getTargetInvoker() == null) { - String name = chain.getOperation().getName(); - throw new TargetInvocationException("No target invoker configured for operation", name); - } - if (chain.getTargetInvoker().isCacheable()) { - // clone and store the invoker locally - holder.cachedInvoker = (TargetInvoker) chain.getTargetInvoker().clone(); - invoker = holder.cachedInvoker; - } else { - invoker = chain.getTargetInvoker(); - } - } else { - assert chain != null; - invoker = chain.getTargetInvoker(); - } - context.setCurrentCorrelationId(null); - return invoke(chain, invoker, args); - } - - - public Object invoke(Method method, Object[] args) throws Throwable { - return invoke(null, method, args); - } - - public void writeExternal(ObjectOutput out) throws IOException { - out.writeObject(serviceName); - out.writeObject(interfaze); - } - - public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { - serviceName = (String) in.readObject(); - interfaze = (Class<?>) in.readObject(); - } - - public void reactivate() throws ReactivationException { - // TODO this method will be extremely slow - look to optimize - AtomicComponent owner = context.getCurrentAtomicComponent(); - if (owner == null) { - throw new ReactivationException("Current atomic component not set on work context"); - } - InboundWire wire = owner.getInboundWire(serviceName); - init(interfaze, wire); - } - - private void init(Class<?> interfaze, InboundWire wire) { - this.chains = new HashMap<Method, ChainHolder>(); - Method[] methods = interfaze.getMethods(); - Map<Method, InboundInvocationChain> invocationChains = WireUtils.createInboundMapping(wire, methods); - for (Map.Entry<Method, InboundInvocationChain> entry : invocationChains.entrySet()) { - this.chains.put(entry.getKey(), new ChainHolder(entry.getValue())); - } - } - - /** - * A holder used to associate an wire chain with a local copy of a target invoker that was previously cloned from - * the chain master - */ - private class ChainHolder { - InboundInvocationChain chain; - TargetInvoker cachedInvoker; - - public ChainHolder(InboundInvocationChain config) { - this.chain = config; - } - - } - -} |