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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.component;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import org.apache.tuscany.core.injection.SingletonObjectFactory;
import org.apache.tuscany.spi.ObjectCreationException;
import org.apache.tuscany.spi.ObjectFactory;
import org.apache.tuscany.spi.component.AtomicComponent;
import org.apache.tuscany.spi.component.InstanceWrapper;
import org.apache.tuscany.spi.component.TargetInvokerCreationException;
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.ServiceContract;
import org.apache.tuscany.spi.model.physical.PhysicalOperationDefinition;
import org.apache.tuscany.spi.wire.TargetInvoker;
import org.apache.tuscany.spi.wire.Wire;
/**
* 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<T> {
private T instance;
private List<ServiceContract> serviceContracts = new ArrayList<ServiceContract>();
public SystemSingletonAtomicComponent(URI name, JavaServiceContract<S> contract, T instance) {
super(name);
this.instance = instance;
this.serviceContracts.add(contract);
}
public SystemSingletonAtomicComponent(URI name, List<JavaServiceContract<?>> services, T instance) {
super(name);
this.instance = instance;
for (ServiceContract<?> contract : services) {
serviceContracts.add(contract);
}
}
public Scope getScope() {
return Scope.COMPOSITE;
}
public boolean isEagerInit() {
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 Object createInstance() throws ObjectCreationException {
throw new UnsupportedOperationException();
}
public void removeInstance() {
throw new UnsupportedOperationException();
}
public InstanceWrapper<T> createInstanceWrapper() throws ObjectCreationException {
throw new UnsupportedOperationException();
}
public ObjectFactory<T> createObjectFactory() {
return new SingletonObjectFactory<T>(instance);
}
public boolean isOptimizable() {
return true;
}
public void attachWire(Wire wire) {
throw new UnsupportedOperationException();
}
public void attachWires(List<Wire> wires) {
throw new UnsupportedOperationException();
}
public List<Wire> getWires(String name) {
throw new UnsupportedOperationException();
}
public void attachCallbackWire(Wire wire) {
throw new UnsupportedOperationException();
}
public TargetInvoker createTargetInvoker(String targetName, Operation operation) {
return null;
}
public TargetInvoker createTargetInvoker(String targetName, PhysicalOperationDefinition operation)
throws TargetInvokerCreationException {
return null;
}
public List<ServiceContract> getServiceContracts() {
return serviceContracts;
}
}
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