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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 crud;
import java.util.Collections;
import java.util.List;
import org.apache.tuscany.assembly.ConstrainingType;
import org.apache.tuscany.assembly.Implementation;
import org.apache.tuscany.assembly.Property;
import org.apache.tuscany.assembly.Reference;
import org.apache.tuscany.assembly.Service;
import org.apache.tuscany.assembly.impl.ServiceImpl;
import org.apache.tuscany.interfacedef.java.JavaInterface;
import org.apache.tuscany.interfacedef.java.JavaInterfaceContract;
import org.apache.tuscany.interfacedef.java.impl.JavaInterfaceContractImpl;
import org.apache.tuscany.interfacedef.java.impl.JavaInterfaceImpl;
import org.apache.tuscany.policy.Intent;
import org.apache.tuscany.policy.PolicySet;
/**
* The model representing a sample CRUD implementation in an SCA
* assembly model.
*
* The sample CRUD implementation is not a full blown implementation,
* it only supports a subset of what a component implementation can
* support:
* - a single fixed service (as opposed to a list of services typed by different
* interfaces)
* - a directory attribute used to specify where a CRUD component is going
* to persist resources
* - no references or properties
* - no policy intents or policy sets
*
* @version $$Rev$$ $$Date$$
*/
public class CRUDImplementation implements Implementation {
private Service crudService;
private String directory;
/**
* Constructs a new CRUD implementation.
*/
public CRUDImplementation() {
// CRUD implementation always provide a single service exposing
// the CRUD interface, and have no references and properties
crudService = new ServiceImpl();
crudService.setName("CRUD");
JavaInterface javaInterface = new JavaInterfaceImpl();
javaInterface.setJavaClass(CRUD.class);
JavaInterfaceContract interfaceContract = new JavaInterfaceContractImpl();
interfaceContract.setInterface(javaInterface);
crudService.setInterfaceContract(interfaceContract);
}
/**
* Returns the directory used by CRUD implementations to persist
* resources.
*
* @return the directory used to persist resources
*/
public String getDirectory() {
return directory;
}
/**
* Sets the directory used by CRUD implementations to persist
* resources.
*
* @param directory the directory used to persist resources
*/
public void setDirectory(String directory) {
this.directory = directory;
}
public ConstrainingType getConstrainingType() {
// CRUD implementations do not support constrainingTypes
return null;
}
public List<Property> getProperties() {
// CRUD implementations do not support properties
return Collections.emptyList();
}
public List<Reference> getReferences() {
// CRUD implementations do not support properties
return Collections.emptyList();
}
public List<Service> getServices() {
// CRUD implementations provide a single fixed CRUD service
return Collections.singletonList(crudService);
}
public String getURI() {
// CRUD implementations don't have a URI
return null;
}
public void setConstrainingType(ConstrainingType constrainingType) {
// CRUD implementations do not support constrainingTypes
}
public void setURI(String uri) {
// CRUD implementations don't have a URI
}
public List<PolicySet> getPolicySets() {
// CRUD implementations do not support policy sets
return Collections.emptyList();
}
public List<Intent> getRequiredIntents() {
// CRUD implementations do not support intents
return Collections.emptyList();
}
public List<Object> getExtensions() {
// CRUD implementations do not support extensions
return Collections.emptyList();
}
public boolean isUnresolved() {
// CRUD implementations are always resolved
return false;
}
public void setUnresolved(boolean unresolved) {
// CRUD implementations are always resolved
}
}
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