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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.core.mock.wire;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.apache.tuscany.spi.wire.Interceptor;
import org.apache.tuscany.spi.wire.InvocationRuntimeException;
import org.apache.tuscany.spi.wire.Message;
import org.apache.tuscany.spi.wire.TargetInvoker;
import org.apache.tuscany.spi.component.WorkContext;
/**
* Caches component instances that do not need to be resolved for every wire, e.g. an wire originating from a lesser
* scope intended for a target with a wider scope
*
* @version $Rev$ $Date$
*/
public class MockStaticInvoker implements TargetInvoker {
private Object instance;
private Method operation;
private boolean cacheable;
public MockStaticInvoker(Method operation, Object instance) {
this.operation = operation;
this.instance = instance;
}
public boolean isCacheable() {
return cacheable;
}
public void setCacheable(boolean cacheable) {
this.cacheable = cacheable;
}
public boolean isOptimizable() {
return isCacheable();
}
public Object invokeTarget(final Object payload, final short sequence, WorkContext workContext) throws InvocationTargetException {
try {
if (payload != null && !payload.getClass().isArray()) {
return operation.invoke(instance, payload);
} else {
return operation.invoke(instance, (Object[]) payload);
}
} catch (IllegalAccessException e) {
throw new InvocationRuntimeException(e);
}
}
public Message invoke(Message msg) throws InvocationRuntimeException {
try {
Object resp = invokeTarget(msg.getBody(), TargetInvoker.NONE, null);
msg.setBody(resp);
} catch (InvocationTargetException e) {
msg.setBodyWithFault(e.getCause());
} catch (Throwable e) {
msg.setBodyWithFault(e);
}
return msg;
}
public void setNext(Interceptor next) {
throw new IllegalStateException("This interceptor must be the last interceptor in an interceptor chain");
}
public Object clone() throws CloneNotSupportedException {
try {
MockStaticInvoker invoker = (MockStaticInvoker) super.clone();
invoker.instance = this.instance;
invoker.operation = this.operation;
return invoker;
} catch (CloneNotSupportedException e) {
return null; // will not happen
}
}
}
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