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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012 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.glassfish.hk2.internal;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.glassfish.hk2.api.DescriptorType;
import org.glassfish.hk2.api.DescriptorVisibility;
import org.glassfish.hk2.api.HK2Loader;
import org.glassfish.hk2.api.PerLookup;
import org.glassfish.hk2.api.ServiceHandle;
import org.glassfish.hk2.utilities.AbstractActiveDescriptor;
import org.glassfish.hk2.utilities.ActiveDescriptorBuilder;

/**
 * @author jwells
 *
 */
public class ActiveDescriptorBuilderImpl implements ActiveDescriptorBuilder {
    private String name;
    private final HashSet contracts = new HashSet();
    private Class scope = PerLookup.class;
    private final HashSet qualifiers = new HashSet();
    private final HashMap> metadatas = new HashMap>();
    private final Class implementation;
    private HK2Loader loader = null;
    private int rank = 0;
    private Boolean proxy = null;
    private Boolean proxyForSameScope = null;
    private DescriptorVisibility visibility = DescriptorVisibility.NORMAL;
    private String classAnalysisName = null;
    
    /**
     * constructor with the impl class
     * 
     * @param implementation The implementation class (may be null)
     */
    public ActiveDescriptorBuilderImpl(Class implementation) {
        this.implementation = implementation;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#named(java.lang.String)
     */
    @Override
    public ActiveDescriptorBuilder named(String name) throws IllegalArgumentException {
        this.name = name;
        
        return this;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#to(java.lang.reflect.Type)
     */
    @Override
    public ActiveDescriptorBuilder to(Type contract) throws IllegalArgumentException {
        if (contract != null) contracts.add(contract);
        
        return this;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#in(java.lang.Class)
     */
    @Override
    public ActiveDescriptorBuilder in(Class scope)
            throws IllegalArgumentException {
        this.scope = scope;
        
        return this;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#qualifiedBy(java.lang.annotation.Annotation)
     */
    @Override
    public ActiveDescriptorBuilder qualifiedBy(Annotation annotation)
            throws IllegalArgumentException {
        if (annotation != null) qualifiers.add(annotation);
        
        return this;
    }
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#has(java.lang.String, java.lang.String)
     */
    @Override
    public ActiveDescriptorBuilder has(String key, String value)
            throws IllegalArgumentException {
        return has(key, Collections.singletonList(value));
    }
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#has(java.lang.String, java.util.List)
     */
    @Override
    public ActiveDescriptorBuilder has(String key, List values)
            throws IllegalArgumentException {
        if (key == null || values == null || values.size() <= 0) {
            throw new IllegalArgumentException();
        }
        
        metadatas.put(key, values);
        
        return this;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#ofRank(int)
     */
    @Override
    public ActiveDescriptorBuilder ofRank(int rank) {
        this.rank = rank;
        
        return this;
    }
    
    @Override
    public ActiveDescriptorBuilder proxy() {
        return proxy(true);
    }
    
    @Override
    public ActiveDescriptorBuilder proxy(boolean forceProxy) {
        if (forceProxy) {
            proxy = Boolean.TRUE;
        }
        else {
            proxy = Boolean.FALSE;
        }
        
        return this;
    }
    
    @Override
    public ActiveDescriptorBuilder proxyForSameScope() {
        return proxy(true);
    }
    
    @Override
    public ActiveDescriptorBuilder proxyForSameScope(boolean forceProxyForSameScope) {
        if (forceProxyForSameScope) {
            proxyForSameScope = Boolean.TRUE;
        }
        else {
            proxyForSameScope = Boolean.FALSE;
        }
        
        return this;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#andLoadWith(org.glassfish.hk2.api.HK2Loader)
     */
    @Override
    public ActiveDescriptorBuilder andLoadWith(HK2Loader loader)
            throws IllegalArgumentException {
        this.loader = loader;
        
        return this;
    }
    
    public ActiveDescriptorBuilder analyzeWith(String serviceName) {
        classAnalysisName = serviceName;
        
        return this;
    }
    
    @Override
    public ActiveDescriptorBuilder localOnly() {
        visibility = DescriptorVisibility.LOCAL;
        
        return this;
    }

    @Override
    public ActiveDescriptorBuilder visibility(DescriptorVisibility visibility) {
        if (visibility == null) throw new IllegalArgumentException();
        
        this.visibility = visibility;
        
        return this;
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#build()
     */
    @Override
    public  AbstractActiveDescriptor build() throws IllegalArgumentException {
        return new BuiltActiveDescriptor(
                implementation,
                contracts,
                scope,
                name,
                qualifiers,
                DescriptorType.CLASS,
                visibility,
                rank,
                proxy,
                proxyForSameScope,
                classAnalysisName,
                metadatas,
                loader);
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#buildProvideMethod()
     */
    @Override
    @Deprecated
    public  AbstractActiveDescriptor buildFactory() throws IllegalArgumentException {
        return buildProvideMethod();
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.utilities.ActiveDescriptorBuilder#buildProvideMethod()
     */
    @Override
    public  AbstractActiveDescriptor buildProvideMethod() throws IllegalArgumentException {
        return new BuiltActiveDescriptor(
                implementation,
                contracts,
                scope,
                name,
                qualifiers,
                DescriptorType.PROVIDE_METHOD,
                visibility,
                rank,
                proxy,
                proxyForSameScope,
                classAnalysisName,
                metadatas,
                loader);
    }
    
    private static class BuiltActiveDescriptor extends AbstractActiveDescriptor {
        /**
         * For serialization
         */
        private static final long serialVersionUID = 2434137639270026082L;
        
        private Class implementationClass;
        
        /**
         * For serialization
         */
        @SuppressWarnings("unused")
        public BuiltActiveDescriptor() {
            super();
        }
        
        private BuiltActiveDescriptor(Class implementationClass,
                Set advertisedContracts,
                Class scope,
                String name,
                Set qualifiers,
                DescriptorType descriptorType,
                DescriptorVisibility descriptorVisibility,
                int ranking,
                Boolean proxy,
                Boolean proxyForSameScope,
                String classAnalysisName,
                Map> metadata,
                HK2Loader loader) {
            super(advertisedContracts,
                    scope,
                    name,
                    qualifiers,
                    descriptorType,
                    descriptorVisibility,
                    ranking,
                    proxy,
                    proxyForSameScope,
                    classAnalysisName,
                    metadata);
            
            super.setReified(false);
            super.setLoader(loader);
            
            this.implementationClass = implementationClass;
            super.setImplementation(implementationClass.getName());
        }
        
        /* (non-Javadoc)
         * @see org.glassfish.hk2.api.ActiveDescriptor#getImplementationClass()
         */
        @Override
        public Class getImplementationClass() {
            return implementationClass;
        }

        /* (non-Javadoc)
         * @see org.glassfish.hk2.api.ActiveDescriptor#create(org.glassfish.hk2.api.ServiceHandle)
         */
        @Override
        public T create(ServiceHandle root) {
            throw new AssertionError("Should not be called directly");
        }
        
    }

    
    

}




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