2 * Copyright 2007 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.system.core;
18 import java.util.Arrays;
21 * Default implementation of a service descriptor.
23 * @author Erik Brakkee
25 public class DefaultProvidedInterface implements ProvidedInterface {
28 private Class[] _interfaces;
29 private Object _implementation;
32 * Constructs the descriptor.
33 * @param aInterface Type of service.
35 public DefaultProvidedInterface(String aName, Class aInterface) {
37 _interfaces = new Class[] { aInterface };
40 public DefaultProvidedInterface(String aName, Class[] aInterfaces) {
42 _interfaces = Arrays.copyOf(aInterfaces, aInterfaces.length);
46 public String getName() {
51 public Class[] getInterfaceTypes() {
56 public void publish(Object aImplementation) {
57 _implementation = aImplementation;
61 public Object getImplementation() {
62 return _implementation;
66 public boolean equals(Object obj) {
67 if ( !(obj instanceof DefaultProvidedInterface)) {
70 DefaultProvidedInterface descr = (DefaultProvidedInterface)obj;
71 if ( _interfaces.length != descr._interfaces.length ) {
74 String[] interfaces1 = new String[_interfaces.length];
75 String[] interfaces2 = new String[_interfaces.length];
76 for (int i = 0; i < _interfaces.length; i++) {
77 interfaces1[i] = _interfaces[i].getName();
78 interfaces2[i] = descr._interfaces[i].getName();
80 Arrays.sort(interfaces1);
81 Arrays.sort(interfaces2);
82 return Arrays.equals(interfaces1, interfaces2);
86 public int hashCode() {
87 return _interfaces.hashCode();
91 public String toString() {
92 StringBuffer buf = new StringBuffer();
93 buf.append(getName());
95 for (Class intf: _interfaces) {
96 buf.append(" " + intf.getName());
98 return buf.toString();