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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
InvokeFactoryServiceConstructor.java | 100% | 96.2% | 100% | 97.4% |
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// Copyright 2004 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.hivemind.impl;
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import java.util.List;
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import org.apache.commons.logging.Log;
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import org.apache.hivemind.ApplicationRuntimeException;
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import org.apache.hivemind.ErrorHandler;
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import org.apache.hivemind.Occurances;
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import org.apache.hivemind.ServiceImplementationFactory;
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import org.apache.hivemind.internal.Module;
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import org.apache.hivemind.internal.ServiceImplementationConstructor;
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import org.apache.hivemind.internal.ServicePoint;
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import org.apache.hivemind.schema.Schema;
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/**
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* Constructs a new service by invoking methods on
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* another service (which implements the
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* {@link org.apache.hivemind.ServiceImplementationFactory} interface.
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*
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* @author Howard Lewis Ship
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*/
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public final class InvokeFactoryServiceConstructor |
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extends BaseLocatable
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implements ServiceImplementationConstructor
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{ |
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private String _factoryServiceId;
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private ServicePoint _serviceExtensionPoint;
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private Module _contributingModule;
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/** List of {@link org.apache.hivemind.Element}, the raw XML parameters. */
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private List _parameters;
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/** The factory service to be invoked. */
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private ServiceImplementationFactory _factory;
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/** The parameters converted to objects as per the factory's parameter schema. */
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private List _convertedParameters;
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// TODO: Should this method be synchronized?
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public Object constructCoreServiceImplementation()
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{ |
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Log serviceLog = _serviceExtensionPoint.getServiceLog(); |
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if (_factory == null) |
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{ |
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ServicePoint factoryPoint = _contributingModule.getServicePoint(_factoryServiceId); |
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Occurances expected = factoryPoint.getParametersCount(); |
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_factory = |
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(ServiceImplementationFactory) factoryPoint.getService( |
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ServiceImplementationFactory.class);
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Schema schema = factoryPoint.getParametersSchema(); |
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// Note: it's kind of a toss up whether logging should occur using the
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// id of the service being constructed, or of the factory being invoked.
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// Here, we're using the constructed service ... with the intent being that
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// users will enable debugging for the service (or search the logs for the service)
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// if it fails to build properly.
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ErrorHandler errorHandler = _contributingModule.getErrorHandler(); |
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SchemaProcessorImpl processor = |
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new SchemaProcessorImpl(errorHandler, serviceLog, schema);
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processor.process(_parameters, _contributingModule); |
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_convertedParameters = processor.getElements(); |
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checkParameterCounts(errorHandler, serviceLog, expected); |
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} |
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try
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{ |
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return _factory.createCoreServiceImplementation(
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_serviceExtensionPoint.getExtensionPointId(), |
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_serviceExtensionPoint.getServiceInterface(), |
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serviceLog, |
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_contributingModule, |
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_convertedParameters); |
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} |
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catch (Exception ex)
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{ |
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throw new ApplicationRuntimeException(ex.getMessage(), getLocation(), ex); |
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} |
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} |
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/**
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* Checks that the number of parameter elements matches the expected count.
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*/
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private void checkParameterCounts(ErrorHandler handler, Log log, Occurances expected) |
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{ |
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int actual = _convertedParameters.size();
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if (expected.inRange(actual))
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return;
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String message = ImplMessages.wrongNumberOfParameters(_factoryServiceId, actual, expected); |
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handler.error(log, message, getLocation(), null);
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} |
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public Module getContributingModule()
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{ |
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return _contributingModule;
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} |
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public void setContributingModule(Module module) |
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{ |
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_contributingModule = module; |
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} |
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public List getParameters()
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{ |
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return _parameters;
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} |
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public ServicePoint getServiceExtensionPoint()
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{ |
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return _serviceExtensionPoint;
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} |
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public void setParameters(List list) |
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{ |
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_parameters = list; |
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} |
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public void setFactoryServiceId(String string) |
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{ |
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_factoryServiceId = string; |
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} |
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public void setServiceExtensionPoint(ServicePoint point) |
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{ |
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_serviceExtensionPoint = point; |
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} |
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} |
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