All Downloads are FREE. Search and download functionalities are using the official Maven repository.
  • Log In
  • Register

    • org.jvnet.hk2.component.BinderFactoryImpl Maven / Gradle / Ivy

    The newest version!
    /*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package org.jvnet.hk2.component;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.WildcardType;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.glassfish.hk2.Binder;
import org.glassfish.hk2.BinderFactory;
import org.glassfish.hk2.Bindings;
import org.glassfish.hk2.NamedBinder;
import org.glassfish.hk2.TypeLiteral;

/**
 * Implementation of the {@link org.glassfish.hk2.BinderFactory} interface.
 *
 * @author Jerome Dochez
 */
class BinderFactoryImpl implements BinderFactory {

    final BinderFactory parent;
    final List binders = new ArrayList();

    BinderFactoryImpl(BinderFactory parent) {
        this.parent = parent;
    }

    @Override
    public BinderFactory inParent() {
        return parent;
    }

    @Override
    public Binder bind(String contractName) {
        BinderImpl binder = new BinderImpl(this);
        binder.addContract(contractName);
        return binder;
    }

    @Override
    public Binder bind(String... contractNames) {
        BinderImpl binder = new BinderImpl(this);
        for (String contractName: contractNames) {
            binder.addContract(contractName);
        }
        return binder;
    }

    @Override
    public  Binder bind(Class contract, Class... contracts) {
        BinderImpl binder = new BinderImpl(this);
        binder.addContract(contract);
        for (Class c : contracts) {
            binder.addContract(c);
        }
        return binder;
    }

    @Override
    public  Binder bind(TypeLiteral typeLiteral) {
        BinderImpl binder = new BinderImpl(this);
        binder.addContract(exploreType(typeLiteral), typeLiteral.getRawType());
        return binder;
    }

    @Override
    public NamedBinder bind() {
        return new BinderImpl(this);
    }

    void add(AbstractResolvedBinder binder) {
        binders.add(binder);
    }

    Bindings registerIn(Habitat habitat) {
        FactoryBindings bindings = new FactoryBindings(habitat);
        
        for (AbstractResolvedBinder binder : binders) {
            Inhabitant inhabitant = binder.registerIn(habitat);
            bindings.add(binder, inhabitant);
        }
        
        binders.clear();
        
        return bindings;
    }


    private static void exploreType(Type type, StringBuilder builder) {
        if (type instanceof ParameterizedType) {
            builder.append(TypeLiteral.getRawType(type).getName());

            // we ignore wildcard types.
            Collection types = Arrays.asList(((ParameterizedType) type).getActualTypeArguments());
            Iterator typesEnum = types.iterator();
            List nonWildcards = new ArrayList();
            while(typesEnum.hasNext()) {
                Type genericType = typesEnum.next();
                if (!(genericType instanceof WildcardType))
                    nonWildcards.add(genericType);
            }
            if (!nonWildcards.isEmpty()) {
                builder.append("<");
                Iterator typesItr = nonWildcards.iterator();
                while(typesItr.hasNext()) {
                    exploreType(typesItr.next(), builder);
                    if (typesItr.hasNext()) builder.append(",");
                }
                builder.append(">");
            }
        } else {
            builder.append(TypeLiteral.getRawType(type).getName());
        }
    }

    static String exploreType(Type type) {
        StringBuilder builder = new StringBuilder();
        exploreType(type, builder);
        return builder.toString();
    }

    static String exploreType(TypeLiteral typeLiteral) {
        StringBuilder builder = new StringBuilder();
        exploreType(typeLiteral.getType(), builder);
        return builder.toString();
    }
    
    
    private static class FactoryBindings implements Bindings {

        private Habitat habitat;
        private HashMap, Inhabitant> bindings = new HashMap, Inhabitant>();
        
        public FactoryBindings(Habitat habitat) {
            this.habitat = habitat;
        }

        public void add(AbstractResolvedBinder binder, Inhabitant inhabitant) {
            bindings.put(binder, inhabitant);
        }

        @Override
        public synchronized boolean isActive() {
            return (null != bindings);
        }

        @Override
        public synchronized void release() {
            if (!isActive()) {
                throw new IllegalStateException();
            }
            
            for (Map.Entry, Inhabitant> entry : bindings.entrySet()) {
                entry.getKey().releaseFrom(habitat, entry.getValue());
            }
            
            bindings = null;
            habitat = null;
        }
        
    }


}
    
    
    
    

    




    
    
    © 2015 - 2025 Weber Informatics LLC | Privacy Policy