package org.webslinger.bsf;

 import org.apache.bsf.BSFException;

 public class ApplyKey<C> extends Key<C> {

     private final String[] names;

     private final Class[] types;

     public ApplyKey(Object id, String[] names, Class[] types) {

         super(id);

         this.names = names;

         this.types = types;

     }

     protected ApplyKey(Object id) {

         this(id, null, null);

     }

     public String[] getNames() {

         return names;

     }

     public Class[] getTypes() {

         return types;

     }

     public static String getLastPart(String name) {

         int period = name.lastIndexOf(".");

         if (period == -1) return name;

         return name.substring(period + 1);

     }

     public String toString() {

         StringBuilder sb = new StringBuilder();

         sb.append("ApplyKey<").append(getId()).append(", [");

         for (int i = 0; i < names.length; i++) {

             if (i != 0) sb.append(", ");

             sb.append(names[i]);

         }

         sb.append("], [");

         for (int i = 0; i < types.length; i++) {

             if (i != 0) sb.append(", ");

             sb.append(getLastPart(types[i].getName()));

         }

         return sb.append("]>").toString();

     }

     protected int computeHashCode() {

         int tmpHashCode = super.computeHashCode();

         if (this instanceof ApplyKeyDynamic) return tmpHashCode;

         for (String name: getNames()) {

             tmpHashCode ^= name.hashCode();

         }

         for (Class type: getTypes()) {

             tmpHashCode ^= type.hashCode();

         }

         return tmpHashCode;

     }

     protected boolean keyEquals(Key key) {

         if (!super.keyEquals(key)) return false;

         if (this instanceof ApplyKeyDynamic) return true;

         if (key instanceof ApplyKeyDynamic) return key.equals(this);

         ApplyKey other = (ApplyKey) key;

         String[] myNames = getNames();

         String[] otherNames = other.getNames();

         if (myNames.length != otherNames.length) return false;

         for (int i = 0; i < myNames.length; i++) {

             if (!myNames[i].equals(otherNames[i])) return false;

         }

         Class[] myTypes = getTypes();

         Class[] otherTypes = other.getTypes();

         if (myTypes.length != otherTypes.length) return false;

         for (int i = 0; i < myTypes.length; i++) {

             if (!myTypes[i].equals(otherTypes[i])) return false;

         }

         return true;

     }

     public <V> C compile(Compiler<V, C> compiler, Compiler<V, C>.CompilerContext context) throws BSFException {

         return compiler.compileKey(this, context);

     }

 }