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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package com.sun.tools.internal.xjc.model.nav;

import java.lang.reflect.Type;
import java.util.Collection;

import com.sun.codemodel.internal.JClass;
import com.sun.xml.internal.bind.v2.model.nav.Navigator;
import com.sun.xml.internal.bind.v2.runtime.Location;

Navigator implementation for XJC. Most of the Navigator methods are used for parsing the model, which doesn't happen in XJC. So Most of the methods aren't really implemented. Implementations should be filled in as needed. 
Author:
Kohsuke Kawaguchi/**
 * {@link Navigator} implementation for XJC.
 *
 * Most of the Navigator methods are used for parsing the model, which doesn't happen
 * in XJC. So Most of the methods aren't really implemented. Implementations should
 * be filled in as needed.
 *
 * @author Kohsuke Kawaguchi
 */
public final class NavigatorImpl implements Navigator<NType,NClass,Void,Void> {
    public static final NavigatorImpl theInstance = new NavigatorImpl();

    private NavigatorImpl() {
    }

    public NClass getSuperClass(NClass nClass) {
        throw new UnsupportedOperationException();
    }

    public NType getBaseClass(NType nt, NClass base) {
        if(nt instanceof EagerNType) {
            EagerNType ent = (EagerNType) nt;
            if (base instanceof EagerNClass) {
                EagerNClass enc = (EagerNClass) base;
                return create(Utils.REFLECTION_NAVIGATOR.getBaseClass(ent.t, enc.c));
            }
            // lazy class can never be a base type of an eager type
            return null;
        }
        if (nt instanceof NClassByJClass) {
            NClassByJClass nnt = (NClassByJClass) nt;
            if (base instanceof EagerNClass) {
                EagerNClass enc = (EagerNClass) base;
                return ref(nnt.clazz.getBaseClass(enc.c));
            }
        }

        throw new UnsupportedOperationException();
    }

    public String getClassName(NClass nClass) {
        throw new UnsupportedOperationException();
    }

    public String getTypeName(NType type) {
        return type.fullName();
    }

    public String getClassShortName(NClass nClass) {
        throw new UnsupportedOperationException();
    }

    public Collection<? extends Void> getDeclaredFields(NClass nClass) {
        throw new UnsupportedOperationException();
    }

    public Void getDeclaredField(NClass clazz, String fieldName) {
        throw new UnsupportedOperationException();
    }

    public Collection<? extends Void> getDeclaredMethods(NClass nClass) {
        throw new UnsupportedOperationException();
    }

    public NClass getDeclaringClassForField(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public NClass getDeclaringClassForMethod(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public NType getFieldType(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public String getFieldName(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public String getMethodName(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public NType getReturnType(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public NType[] getMethodParameters(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public boolean isStaticMethod(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public boolean isFinalMethod(Void aVoid) {
        throw new UnsupportedOperationException();
    }

    public boolean isSubClassOf(NType sub, NType sup) {
        throw new UnsupportedOperationException();
    }

    public NClass ref(Class c) {
        return create(c);
    }

    public NClass ref(JClass c) {
        if(c==null)     return null;
        return new NClassByJClass(c);
    }

    public NType use(NClass nc) {
        return nc;
    }

    public NClass asDecl(NType nt) {
        if(nt instanceof NClass)
            return (NClass)nt;
        else
            return null;
    }

    public NClass asDecl(Class c) {
        return ref(c);
    }

    public boolean isArray(NType nType) {
        throw new UnsupportedOperationException();
    }

    public boolean isArrayButNotByteArray(NType t) {
        throw new UnsupportedOperationException();
    }


    public NType getComponentType(NType nType) {
        throw new UnsupportedOperationException();
    }

    public NType getTypeArgument(NType nt, int i) {
        if (nt instanceof EagerNType) {
            EagerNType ent = (EagerNType) nt;
            return create(Utils.REFLECTION_NAVIGATOR.getTypeArgument(ent.t,i));
        }
        if (nt instanceof NClassByJClass) {
            NClassByJClass nnt = (NClassByJClass) nt;
            return ref(nnt.clazz.getTypeParameters().get(i));
        }

        throw new UnsupportedOperationException();
    }

    public boolean isParameterizedType(NType nt) {
        if (nt instanceof EagerNType) {
            EagerNType ent = (EagerNType) nt;
            return Utils.REFLECTION_NAVIGATOR.isParameterizedType(ent.t);
        }
        if (nt instanceof NClassByJClass) {
            NClassByJClass nnt = (NClassByJClass) nt;
            return nnt.clazz.isParameterized();
        }

        throw new UnsupportedOperationException();
    }

    public boolean isPrimitive(NType type) {
        throw new UnsupportedOperationException();
    }

    public NType getPrimitive(Class primitiveType) {
        return create(primitiveType);
    }

    @SuppressWarnings("FinalStaticMethod")
    public static final NType create(Type t) {
        if(t==null)     return null;
        if(t instanceof Class)
            return create((Class)t);

        return new EagerNType(t);
    }

    public static NClass create( Class c ) {
        if(c==null)     return null;
        return new EagerNClass(c);
    }

    
Creates a NType representation for a parameterized type RawType<ParamType1,ParamType2,...> . /**
     * Creates a {@link NType} representation for a parameterized type
     * {@code RawType<ParamType1,ParamType2,...> }.
     */
    public static NType createParameterizedType( NClass rawType, NType... args ) {
        return new NParameterizedType(rawType,args);
    }

    public static NType createParameterizedType( Class rawType, NType... args ) {
        return new NParameterizedType(create(rawType),args);
    }

    public Location getClassLocation(final NClass c) {
        // not really needed for XJC but doesn't hurt to have one
        return new Location() {
            @Override
            public String toString() {
                return c.fullName();
            }
        };
    }

    public Location getFieldLocation(Void v) {
        throw new IllegalStateException();
    }

    public Location getMethodLocation(Void v) {
        throw new IllegalStateException();
    }

    public boolean hasDefaultConstructor(NClass nClass) {
        throw new UnsupportedOperationException();
    }

    public boolean isStaticField(Void aVoid) {
        throw new IllegalStateException();
    }

    public boolean isPublicMethod(Void aVoid) {
        throw new IllegalStateException();
    }

    public boolean isPublicField(Void aVoid) {
        throw new IllegalStateException();
    }

    public boolean isEnum(NClass c) {
        return isSubClassOf(c,create(Enum.class));
    }

    public <T> NType erasure(NType type) {
        if(type instanceof NParameterizedType) {
            NParameterizedType pt = (NParameterizedType) type;
            return pt.rawType;
        }
        return type;
    }

    public boolean isAbstract(NClass clazz) {
        return clazz.isAbstract();
    }

    
Deprecated:

     no class generated by XJC is final./**
     * @deprecated
     *      no class generated by XJC is final.
     */
    public boolean isFinal(NClass clazz) {
        return false;
    }

    public Void[] getEnumConstants(NClass clazz) {
        throw new UnsupportedOperationException();
    }

    public NType getVoidType() {
        return ref(void.class);
    }

    public String getPackageName(NClass clazz) {
        // TODO: implement this method later
        throw new UnsupportedOperationException();
    }

    @Override
    public NClass loadObjectFactory(NClass referencePoint, String pkg) {
        throw new UnsupportedOperationException();
    }

    public boolean isBridgeMethod(Void method) {
        throw new UnsupportedOperationException();
    }

    public boolean isOverriding(Void method,NClass clazz) {
        throw new UnsupportedOperationException();
    }

    public boolean isInterface(NClass clazz) {
        throw new UnsupportedOperationException();
    }

    public boolean isTransient(Void f) {
        throw new UnsupportedOperationException();
    }

    public boolean isInnerClass(NClass clazz) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isSameType(NType t1, NType t2) {
         throw new UnsupportedOperationException();
    }
}