X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fcore%2FDefaultRequiredInterface.java;h=9810d79f2d6d43e133533367a34bb71715aabf2a;hb=49ce7cb8387601982d5e6ef186ce206d38f6e3d7;hp=01575db2c0dbc4e78b9bc53ac989b9cd22f0e2a6;hpb=ad6e06e3c1ba0c4ae0dea100596b1c5503bfe1c6;p=utils

diff --git a/system/general/src/main/java/org/wamblee/system/core/DefaultRequiredInterface.java b/system/general/src/main/java/org/wamblee/system/core/DefaultRequiredInterface.java
index 01575db2..9810d79f 100644
--- a/system/general/src/main/java/org/wamblee/system/core/DefaultRequiredInterface.java
+++ b/system/general/src/main/java/org/wamblee/system/core/DefaultRequiredInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007 the original author or authors.
+ * Copyright 2005-2010 the original author or authors.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -12,127 +12,172 @@
  * 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.wamblee.system.core;
 
+import org.wamblee.reflection.ReflectionUtils;
+
 import java.util.Arrays;
 
+/**
+ * 
+ * @author $author$
+ * @version $Revision$
+ */
 public class DefaultRequiredInterface implements RequiredInterface {
+    private String name;
+
+    private boolean optional;
+
+    private Class[] required;
+
+    private ProvidedInterface provider;
+
+    /**
+     * Creates a new DefaultRequiredInterface object.
+     * 
+     */
+    public DefaultRequiredInterface(String aName, Class aInterface) {
+        this(aName, new Class[] { aInterface });
+    }
+
+    /**
+     * Creates a new DefaultRequiredInterface object.
+     * 
+     */
+    public DefaultRequiredInterface(String aName, Class[] aInterfaces) {
+        this(aName, aInterfaces, false);
+    }
+
+    /**
+     * Creates a new DefaultRequiredInterface object.
+     * 
+     */
+    public DefaultRequiredInterface(String aName, Class aInterface,
+        boolean aIsOptional) {
+        this(aName, new Class[] { aInterface }, aIsOptional);
+    }
+
+    /**
+     * Creates a new DefaultRequiredInterface object.
+     * 
+     */
+    public DefaultRequiredInterface(String aName, Class[] aInterfaces,
+        boolean aIsOptional) {
+        name = aName;
+        optional = aIsOptional;
+        required = aInterfaces;
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public boolean isOptional() {
+        return optional;
+    }
+
+    @Override
+    public boolean implementedBy(ProvidedInterface aDescriptor) {
+        Class[] provided = aDescriptor.getInterfaceTypes();
+
+        for (Class requiredIntf : required) {
+            if (!serviceProvided(requiredIntf, provided)) {
+                return false;
+            }
+        }
+
+        // all required interfaces are provided.
+        return true;
+    }
+
+    /**
+     * Check if the required interface is implemented by one of the provided
+     * interfaces.
+     * 
+     * @param aRequired
+     *            required interface
+     * @param aProvided
+     *            Provided interfaces.
+     * 
+     * @return
+     */
+    private boolean serviceProvided(Class aRequired, Class[] aProvided) {
+        for (Class provided : aProvided) {
+            try {
+                provided = ReflectionUtils.wrapIfNeeded(provided);
+                aRequired = ReflectionUtils.wrapIfNeeded(aRequired);
+                provided.asSubclass(aRequired);
+
+                return true;
+            } catch (ClassCastException e) {
+                // No match, try the next one.
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public ProvidedInterface getProvider() {
+        return provider;
+    }
+
+    @Override
+    public void setProvider(ProvidedInterface aProvider) {
+        assert aProvider != null;
+        assert implementedBy(aProvider);
+        provider = aProvider;
+    }
+
+    @Override
+    public boolean equals(Object aObject) {
+        return this == aObject;
+    }
+
+    @Override
+    public boolean covers(RequiredInterface aObject) {
+        // TODO do more than equals.
+        if (!(aObject instanceof DefaultRequiredInterface)) {
+            return false;
+        }
+
+        DefaultRequiredInterface descr = (DefaultRequiredInterface) aObject;
+
+        if (required.length != descr.required.length) {
+            return false;
+        }
+
+        String[] interfaces1 = new String[required.length];
+        String[] interfaces2 = new String[required.length];
+
+        for (int i = 0; i < required.length; i++) {
+            interfaces1[i] = required[i].getName();
+            interfaces2[i] = descr.required[i].getName();
+        }
+
+        Arrays.sort(interfaces1);
+        Arrays.sort(interfaces2);
+
+        return Arrays.equals(interfaces1, interfaces2);
+    }
+
+    @Override
+    public int hashCode() {
+        return Arrays.hashCode(required);
+    }
+
+    @Override
+    public String toString() {
+        StringBuffer buf = new StringBuffer();
+        buf.append("." + getName() + ":");
+
+        for (Class intf : required) {
+            buf.append("." + intf.getName());
+        }
 
-	private String _name;
-	private boolean _optional; 
-	private Class[] _required;
-	private ProvidedInterface _provider; 
-	
-	public DefaultRequiredInterface(String aName, Class aInterface) {
-		this(aName, new Class[] { aInterface }); 
-	}
-
-	public DefaultRequiredInterface(String aName, Class[] aInterfaces) {
-		this(aName, aInterfaces, false); 
-	}
-	
-	public DefaultRequiredInterface(String aName, Class aInterface, boolean aIsOptional) {
-	    this(aName, new Class[] { aInterface }, aIsOptional );
-	}
-
-	
-	public DefaultRequiredInterface(String aName, Class[] aInterfaces, boolean aIsOptional) {
-		_name = aName; 
-		_optional = aIsOptional; 
-		_required = aInterfaces; 
-	}
-
-	@Override
-	public String getName() {
-		return _name;
-	}
-	
-	@Override
-	public boolean isOptional() {
-		return _optional; 
-	}
-	
-	@Override
-	public boolean implementedBy(ProvidedInterface aDescriptor) {
-		Class[] provided = aDescriptor.getInterfaceTypes();
-		for (Class required : _required) {
-			if ( !serviceProvided(required, provided)) { 
-				return false; 
-			}
-		}
-		// all required interfaces are provided.
-		return true; 
-	}
-	
-	/**
-	 * Check if the required interface is implemented by one of the provided interfaces. 
-	 * @param aRequired required interface
-	 * @param aProvided Provided interfaces.
-	 * @return
-	 */
-	private boolean serviceProvided(Class aRequired, Class[] aProvided) { 
-		for (Class provided: aProvided) {
-			try {
-				provided.asSubclass(aRequired);
-				return true; 
-			} catch (ClassCastException e) {
-				// No match, try the next one.
-			}
-		}
-		return false; 
-	}
-	
-	@Override
-	public ProvidedInterface getProvider() {
-		return _provider; 
-	}
-	
-	@Override
-	public void setProvider(ProvidedInterface aProvider) {
-	    assert aProvider != null; 
-	    assert implementedBy(aProvider);
-		_provider = aProvider; 	
-	}
-	
-	@Override
-	public boolean equals(Object obj) { 
-	    return this == obj; 
-	}
-	
-	@Override
-	public boolean covers(RequiredInterface obj) {
-	    // TODO do more than equals. 
-		if ( !(obj instanceof DefaultRequiredInterface)) { 
-			return false; 
-		}
-		DefaultRequiredInterface descr = (DefaultRequiredInterface)obj;
-		if ( _required.length != descr._required.length ) { 
-			return false; 
-		}
-		String[] interfaces1 = new String[_required.length];
-		String[] interfaces2 = new String[_required.length];
-		for (int i = 0; i < _required.length; i++) {  
-			interfaces1[i] = _required[i].getName();
-			interfaces2[i] = descr._required[i].getName();
-		}
-		Arrays.sort(interfaces1);
-		Arrays.sort(interfaces2);
-		return Arrays.equals(interfaces1, interfaces2);
-	}
-
-	@Override
-	public int hashCode() {
-		return _required.hashCode(); 
-	}
-	
-	@Override
-	public String toString() {
-		StringBuffer buf = new StringBuffer();
-		buf.append("." + getName() + ":");
-		for (Class intf: _required) { 
-			buf.append("." + intf.getName());
-		}
-		return buf.toString();
-	}
+        return buf.toString();
+    }
 }