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/*
* 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.extension.script;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import static org.apache.tuscany.spi.idl.java.JavaIDLUtils.findMethod;
import static org.apache.tuscany.spi.idl.java.JavaIDLUtils.findMethod2;
import org.apache.tuscany.spi.model.Operation;
import org.apache.tuscany.spi.model.physical.PhysicalOperationDefinition;
import org.apache.tuscany.spi.wire.ChainHolder;
import org.apache.tuscany.spi.wire.Interceptor;
import org.apache.tuscany.spi.wire.InvocationChain;
import org.apache.tuscany.spi.wire.ProxyCreationException;
import org.apache.tuscany.spi.wire.Wire;
/**
* Utilities for operating on wires
*
* @version $Rev$ $Date$
*/
public final class WireUtils {
private WireUtils() {
}
/**
* Maps methods on an interface to operations on a wire
*
* @param interfaze the interface to map from
* @param wire the wire to map to
* @return a collection of method to operation mappings
* @throws NoMethodForOperationException
* @Deprecated
*/
public static Map<Method, ChainHolder> createInterfaceToWireMapping(Class<?> interfaze, Wire wire) {
Map<Operation<?>, InvocationChain> invocationChains = wire.getInvocationChains();
Map<Method, ChainHolder> chains = new HashMap<Method, ChainHolder>(invocationChains.size());
for (Map.Entry<Operation<?>, InvocationChain> entry : invocationChains.entrySet()) {
Operation operation = entry.getKey();
try {
Method method = findMethod(interfaze, operation);
chains.put(method, new ChainHolder(entry.getValue()));
} catch (NoSuchMethodException e) {
throw new RuntimeException(operation.getName());
}
}
return chains;
}
public static Map<Method, InvocationChain> createInterfaceToWireMapping2(Class<?> interfaze, Wire wire) {
Map<PhysicalOperationDefinition, InvocationChain> invocationChains = wire.getPhysicalInvocationChains();
Map<Method, InvocationChain> chains = new HashMap<Method, InvocationChain>(invocationChains.size());
for (Map.Entry<PhysicalOperationDefinition, InvocationChain> entry : invocationChains.entrySet()) {
PhysicalOperationDefinition operation = entry.getKey();
try {
Method method = findMethod2(interfaze, operation);
chains.put(method, entry.getValue());
} catch (NoSuchMethodException e) {
throw new RuntimeException(operation.getName());
} catch (ClassNotFoundException e) {
throw new ProxyCreationException(e);
}
}
return chains;
}
/**
* Determines if the given wire is optimizable, i.e. its invocation chains may be bypassed during an invocation.
* This is typically calculated during the connect phase to optimize away invocation chains.
*
* @param wire the wire
* @return true if the wire is optimizable
*/
public static boolean isOptimizable(Wire wire) {
for (InvocationChain chain : wire.getInvocationChains().values()) {
if (chain.getHeadInterceptor() != null) {
Interceptor current = chain.getHeadInterceptor();
if (current == null) {
break;
}
while (current != null) {
if (!current.isOptimizable()) {
return false;
}
current = current.getNext();
}
}
}
// if there is a callback, the wire is never optimizable since the callback target needs to be disambiguated
return wire.getCallbackInvocationChains().isEmpty();
}
}
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