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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.container.dataaccess;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.tuscany.container.dataaccessscript.DataAccessEngine;
import org.apache.tuscany.container.dataaccessscript.DataAccessInstanceImpl;
import org.apache.tuscany.das.rdb.DAS;
import org.apache.tuscany.spi.ObjectCreationException;
import org.apache.tuscany.spi.ObjectFactory;
/**
* A data access script
*/
public class DataAccessInstanceFactory implements ObjectFactory<DataAccessInstance> {
protected String dasConfig;
protected InputStream dasConfigStream;
protected String dataAccessType;
protected ClassLoader classLoader;
protected Map<String, ObjectFactory> contextObjects;
private DataAccessEngine dataAccessEngine = new DataAccessEngine();
/**
* Create a new DataAccess object.
*
* @param dasConfig
* the name of the Data Access configuration file to be used
* @param dataAccessType
* what type of data access mechanism is being used (e.g rdb)
*/
public DataAccessInstanceFactory(String dasConfiguration, InputStream dasConfigStream, String dataAccessType, ClassLoader classLoader) {
this.dasConfig = dasConfiguration;
this.dasConfigStream = dasConfigStream;
this.dataAccessType = dataAccessType;
this.classLoader = classLoader;
}
/**
* Create a new invokeable instance of the script <p/> objects to add to scope of the script instance
*
* @return a DataAccessInstance
*/
public DataAccessInstance getInstance() throws ObjectCreationException {
if (dataAccessType == null) {
return null;
} else {
//the commented one gives STREAM CLOSED exception from xerces - in JUnit???
DAS das = dataAccessEngine.getDAS(dataAccessType, dasConfig);// factory, currently only for rdb
//DAS das = dataAccessEngine.getDAS(dataAccessType, dasConfigStream);// factory, currently only for rdb
return new DataAccessInstanceImpl(das, this.dataAccessType);
}
}
protected Map<String, Class> getResponseClasses(List<Class> services) {
Map<String, Class> responseClasses = new HashMap<String, Class>();
if (services != null) {
for (Class s : services) {
for (Method m : s.getMethods()) {
responseClasses.put(m.getName(), m.getReturnType());
}
}
}
return responseClasses;
}
public void addContextObjectFactory(String name, ObjectFactory<?> factory) {
contextObjects.put(name, factory);
}
}
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