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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.extensibility;
import java.io.IOException;
import java.net.URL;
import java.util.Enumeration;
import java.util.Map;
/**
* Service declaration using J2SE Jar service provider spec Classes specified
* inside this declaration are loaded using the ClassLoader used to read the
* configuration file corresponding to this declaration.
*
* @version $Rev$ $Date$
* @tuscany.spi.extension.asclient
*/
public interface ServiceDeclaration {
/**
* Load a java class in the same context as the service definition
* @param className The class name
* @return The loaded class
* @throws ClassNotFoundException
*/
Class<?> loadClass(String className) throws ClassNotFoundException;
/**
* Get the java class for the service impl
* @return The java class
*/
Class<?> loadClass() throws ClassNotFoundException;
/**
* Get all attributes (name=value pairs) defined for the given entry
* @return All attributes keyed by name
*/
Map<String, String> getAttributes();
/**
* Check if the service implementation class is a type of the service
* @param serviceType The java class of the service SPI
* @return true if the implementation class is a type of the service
*/
boolean isAssignableTo(Class<?> serviceType);
URL getLocation();
/**
* Return the class name for the service provider
* @return
*/
String getClassName();
URL getResource(String name);
Enumeration<URL> getResources(String name) throws IOException;
/**
* The service descriptor might be hashed
* @param obj Another object
* @return
*/
boolean equals(Object obj);
/**
* The service descriptor might be hashed
* @return
*/
int hashCode();
}
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