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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.implementation.composite;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.tuscany.core.wire.jdk.JDKWireService;
import org.apache.tuscany.spi.ObjectCreationException;
import org.apache.tuscany.spi.component.AtomicComponent;
import org.apache.tuscany.spi.component.CompositeComponent;
import org.apache.tuscany.spi.component.TargetDestructionException;
import org.apache.tuscany.spi.component.TargetInitializationException;
import org.apache.tuscany.spi.component.TargetResolutionException;
import org.apache.tuscany.spi.extension.AbstractComponentExtension;
import org.apache.tuscany.spi.idl.java.JavaServiceContract;
import org.apache.tuscany.spi.model.Operation;
import org.apache.tuscany.spi.model.Scope;
import org.apache.tuscany.spi.model.ServiceDefinition;
import org.apache.tuscany.spi.wire.InboundWire;
import org.apache.tuscany.spi.wire.OutboundWire;
import org.apache.tuscany.spi.wire.TargetInvoker;
import org.apache.tuscany.spi.wire.WireService;
/**
* An {@link org.apache.tuscany.spi.component.AtomicComponent} used when registering objects directly into a composite
*
* @version $$Rev$$ $$Date$$
*/
public class SystemSingletonAtomicComponent<S, T extends S> extends AbstractComponentExtension
implements AtomicComponent {
private T instance;
private Map<String, InboundWire> inboundWires;
private WireService wireService = new JDKWireService();
public SystemSingletonAtomicComponent(String name, CompositeComponent parent, Class<S> interfaze, T instance) {
super(name, parent);
this.instance = instance;
inboundWires = new HashMap<String, InboundWire>();
initWire(interfaze);
}
public SystemSingletonAtomicComponent(String name,
CompositeComponent parent,
List<Class<?>> services,
T instance) {
super(name, parent);
this.instance = instance;
inboundWires = new HashMap<String, InboundWire>();
for (Class<?> interfaze : services) {
initWire(interfaze);
}
}
public Scope getScope() {
return Scope.COMPOSITE;
}
public boolean isEagerInit() {
return false;
}
public boolean isDestroyable() {
return false;
}
public int getInitLevel() {
return 0;
}
public long getMaxIdleTime() {
return -1;
}
public long getMaxAge() {
return -1;
}
public T getTargetInstance() throws TargetResolutionException {
return instance;
}
public void init(Object instance) throws TargetInitializationException {
}
public void destroy(Object instance) throws TargetDestructionException {
}
public Object createInstance() throws ObjectCreationException {
throw new UnsupportedOperationException();
}
public void removeInstance() {
throw new UnsupportedOperationException();
}
public void addInboundWire(InboundWire wire) {
inboundWires.put(wire.getServiceName(), wire);
}
public Collection<InboundWire> getInboundWires() {
return Collections.unmodifiableCollection(inboundWires.values());
}
public InboundWire getInboundWire(String serviceName) {
return inboundWires.get(serviceName);
}
public void addOutboundWire(OutboundWire wire) {
throw new UnsupportedOperationException();
}
public void addOutboundWires(List<OutboundWire> wires) {
throw new UnsupportedOperationException();
}
public Map<String, List<OutboundWire>> getOutboundWires() {
return Collections.emptyMap();
}
public TargetInvoker createTargetInvoker(String targetName, Operation operation, InboundWire callbackWire) {
return null;
}
public boolean isSystem() {
return true;
}
private void initWire(Class<?> interfaze) {
JavaServiceContract serviceContract = new JavaServiceContract(interfaze);
ServiceDefinition def = new ServiceDefinition(interfaze.getName(), serviceContract, false);
InboundWire wire = wireService.createWire(def);
wire.setContainer(this);
inboundWires.put(wire.getServiceName(), wire);
}
@Override
public boolean isOptimizable() {
return true;
}
}
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