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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.sca.assembly.builder.impl;
import org.apache.tuscany.sca.assembly.Binding;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.assembly.CompositeService;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.builder.EndpointBuilder;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
/**
* A factory for the Endpoint model.
*
* @version $Rev$ $Date$
*/
public abstract class EndpointBuilderImpl implements EndpointBuilder {
private Monitor monitor;
public EndpointBuilderImpl (Monitor monitor){
this.monitor = monitor;
}
private void warning(String message, Object model, String... messageParameters) {
if (monitor != null){
Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
/**
* Resolve an endpoint against the provided target information and the
* set of candidate bindings.
*/
public void build(Endpoint endpoint) {
// If this endpoint is not fully configured then don't try and resolve it
if (endpoint.getTargetComponentService() == null){
return;
}
// Does the reference expect callbacks
boolean bidirectional = false;
if (endpoint.getSourceComponentReference().getInterfaceContract() != null &&
endpoint.getSourceComponentReference().getInterfaceContract().getCallbackInterface() != null) {
bidirectional = true;
}
// if the target service is a promoted service then find the
// service it promotes
if (endpoint.getTargetComponentService().getService() instanceof CompositeService) {
CompositeService compositeService = (CompositeService) endpoint.getTargetComponentService().getService();
// Find the promoted component service
ComponentService promotedComponentService = ServiceConfigurationUtil.getPromotedComponentService(compositeService);
if (promotedComponentService != null && !promotedComponentService.isUnresolved()) {
endpoint.setTargetComponentService(promotedComponentService);
}
}
try {
PolicyConfigurationUtil.determineApplicableBindingPolicySets(endpoint.getSourceComponentReference(),
endpoint.getTargetComponentService());
} catch ( Exception e ) {
warning("Policy related exception: " + e, e);
}
// Match the binding against the bindings of the target service
Binding resolvedBinding = BindingConfigurationUtil.matchBinding(endpoint.getTargetComponent(),
endpoint.getTargetComponentService(),
endpoint.getCandidateBindings(),
endpoint.getTargetComponentService().getBindings());
if (resolvedBinding == null) {
warning("NoMatchingBinding",
endpoint.getSourceComponentReference(),
endpoint.getSourceComponentReference().getName(),
endpoint.getTargetComponentService().getName());
} else {
endpoint.setSourceBinding(resolvedBinding);
}
if (bidirectional) {
Binding resolvedCallbackBinding = BindingConfigurationUtil.matchBinding(endpoint.getTargetComponent(),
endpoint.getTargetComponentService(),
endpoint.getSourceComponentReference().getCallback().getBindings(),
endpoint.getTargetComponentService().getCallback().getBindings());
if (resolvedBinding == null) {
warning("NoMatchingCallbackBinding",
endpoint.getSourceComponentReference(),
endpoint.getSourceComponentReference().getName(),
endpoint.getTargetComponentService().getName());
} else {
endpoint.setSourceCallbackBinding(resolvedCallbackBinding);
}
}
}
}
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