wamblee.org Git - utils/blob - system/general/src/main/java/org/wamblee/system/AbstractProvidedInterfaceDescriptor.java

   1 package org.wamblee.system;
   2
   3 import java.util.Arrays;
   4
   5 /**
   6  * Default implementation of a service descriptor.
   7  *
   8  * @author Erik Brakkee
   9  */
  10 public class AbstractProvidedInterfaceDescriptor implements ProvidedInterfaceDescriptor {
  11
  12         private String _name;
  13         private Class[] _interfaces;
  14
  15         /**
  16          * Constructs the descriptor.
  17          * @param aInterface Type of service.
  18          */
  19         public AbstractProvidedInterfaceDescriptor(String aName, Class aInterface) {
  20                 _name = aName;
  21                 _interfaces = new Class[] { aInterface };
  22         }
  23
  24         public AbstractProvidedInterfaceDescriptor(String aName, Class[] aInterfaces) {
  25                 _name = aName;
  26                 _interfaces = Arrays.copyOf(aInterfaces, aInterfaces.length);
  27         }
  28
  29         @Override
  30         public String getName() {
  31                 return _name;
  32         }
  33
  34         @Override
  35         public Class[] getInterfaceTypes() {
  36                 return _interfaces;
  37         }
  38
  39         @Override
  40         public boolean equals(Object obj) {
  41                 if ( !(obj instanceof AbstractProvidedInterfaceDescriptor)) {
  42                         return false;
  43                 }
  44                 AbstractProvidedInterfaceDescriptor descr = (AbstractProvidedInterfaceDescriptor)obj;
  45                 if ( _interfaces.length != descr._interfaces.length ) {
  46                         return false;
  47                 }
  48                 String[] interfaces1 = new String[_interfaces.length];
  49                 String[] interfaces2 = new String[_interfaces.length];
  50                 for (int i = 0; i < _interfaces.length; i++) {
  51                         interfaces1[i] = _interfaces[i].getName();
  52                         interfaces2[i] = descr._interfaces[i].getName();
  53                 }
  54                 Arrays.sort(interfaces1);
  55                 Arrays.sort(interfaces2);
  56                 return Arrays.equals(interfaces1, interfaces2);
  57         }
  58
  59         @Override
  60         public int hashCode() {
  61                 return _interfaces.hashCode();
  62         }
  63
  64         @Override
  65         public String toString() {
  66                 StringBuffer buf = new StringBuffer();
  67                 for (Class intf: _interfaces) {
  68                         buf.append("." + intf.getName());
  69                 }
  70                 return buf.toString();
  71         }
  72 }