alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (TypeMonikerFactory.java)

This example Java source code file (TypeMonikerFactory.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arraylist, arraytypemoniker, collection, declaredtypemoniker, name, nullpointerexception, primitivetypemoniker, stringmoniker, typeelement, typekind, typemirror, typemoniker, typemonikerfactory, util

The TypeMonikerFactory.java Java example source code

/*
 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.tools.internal.ws.processor.modeler.annotation;

import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.Name;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.ArrayType;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.PrimitiveType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import java.util.ArrayList;
import java.util.Collection;

/**
 * @author dkohlert
 */
public class TypeMonikerFactory {

    public static TypeMoniker getTypeMoniker(TypeMirror typeMirror) {
        if (typeMirror == null)
            throw new NullPointerException();

        if (typeMirror.getKind().isPrimitive())
            return new PrimitiveTypeMoniker((PrimitiveType) typeMirror);
        else if (typeMirror.getKind().equals(TypeKind.ARRAY))
            return new ArrayTypeMoniker((ArrayType) typeMirror);
        else if (typeMirror.getKind().equals(TypeKind.DECLARED))
            return new DeclaredTypeMoniker((DeclaredType) typeMirror);
        return getTypeMoniker(typeMirror.toString());
    }

    public static TypeMoniker getTypeMoniker(String typeName) {
        return new StringMoniker(typeName);
    }

    static class ArrayTypeMoniker implements TypeMoniker {
        private TypeMoniker arrayType;

        public ArrayTypeMoniker(ArrayType type) {
            arrayType = TypeMonikerFactory.getTypeMoniker(type.getComponentType());
        }

        public TypeMirror create(ProcessingEnvironment apEnv) {
            return apEnv.getTypeUtils().getArrayType(arrayType.create(apEnv));
        }
    }
    static class DeclaredTypeMoniker implements TypeMoniker {
        private Name typeDeclName;
        private Collection<TypeMoniker> typeArgs = new ArrayList();

        public DeclaredTypeMoniker(DeclaredType type) {
            typeDeclName = ((TypeElement) type.asElement()).getQualifiedName();
            for (TypeMirror arg : type.getTypeArguments())
                typeArgs.add(TypeMonikerFactory.getTypeMoniker(arg));
        }

        public TypeMirror create(ProcessingEnvironment apEnv) {
            TypeElement typeDecl = apEnv.getElementUtils().getTypeElement(typeDeclName);
            TypeMirror[] tmpArgs = new TypeMirror[typeArgs.size()];
            int idx = 0;
            for (TypeMoniker moniker : typeArgs)
                tmpArgs[idx++] = moniker.create(apEnv);

            return apEnv.getTypeUtils().getDeclaredType(typeDecl, tmpArgs);
        }
    }
    static class PrimitiveTypeMoniker implements TypeMoniker {
        private TypeKind kind;

        public PrimitiveTypeMoniker(PrimitiveType type) {
            kind = type.getKind();
        }

        public TypeMirror create(ProcessingEnvironment apEnv) {
            return apEnv.getTypeUtils().getPrimitiveType(kind);
        }
    }
    static class StringMoniker implements TypeMoniker {
        private String typeName;

        public StringMoniker(String typeName) {
            this.typeName = typeName;
        }

        public TypeMirror create(ProcessingEnvironment apEnv) {
            return apEnv.getTypeUtils().getDeclaredType(apEnv.getElementUtils().getTypeElement(typeName));
        }
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java TypeMonikerFactory.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.