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• Binding.java

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org.glassfish.jersey.internal.inject.Binding Maven / Gradle / Ivy

/*
 * Copyright (c) 2017, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.internal.inject;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

import javax.ws.rs.core.GenericType;

import javax.inject.Named;

/**
 * Abstract injection binding description of a bean.
 *
 * @param  type of the bean described by this injection binding.
 * @param  concrete injection binding implementation type.
 * @author Petr Bouda
 */
@SuppressWarnings("unchecked")
public abstract class Binding {

    private final Set contracts = new HashSet<>();
    private final Set qualifiers = new HashSet<>();
    private final Set aliases = new HashSet<>();
    private Class scope = null;
    private String name = null;
    private Class implementationType = null;
    private String analyzer = null;
    private Boolean proxiable = null;
    private Boolean proxyForSameScope = null;
    private Integer ranked = null;

    /**
     * Gets information whether the service is proxiable.
     *
     * @return {@code true} if the service is proxiable.
     */
    public Boolean isProxiable() {
        return proxiable;
    }

    /**
     * Gets information whether the service creates the proxy for the same scope.
     *
     * @return {@code true} if the service creates the proxy for the same scop.
     */
    public Boolean isProxiedForSameScope() {
        return proxyForSameScope;
    }

    /**
     * Gets rank of the service.
     *
     * @return service's rank.
     */
    public Integer getRank() {
        return ranked;
    }

    /**
     * Gets service's contracts.
     *
     * @return service's contracts.
     */
    public Set getContracts() {
        return contracts;
    }

    /**
     * Gets service's qualifiers.
     *
     * @return service's qualifiers.
     */
    public Set getQualifiers() {
        return qualifiers;
    }

    /**
     * Gets service's scope.
     *
     * @return service's scope.
     */
    public Class getScope() {
        return scope;
    }

    /**
     * Gets service's name.
     *
     * @return service's name.
     */
    public String getName() {
        return name;
    }

    /**
     * Gets service's type.
     *
     * @return service's type.
     */
    public Class getImplementationType() {
        return implementationType;
    }

    /**
     * Gets service's analyzer.
     *
     * @return service's analyzer.
     */
    public String getAnalyzer() {
        return analyzer;
    }

    /**
     * Gets service's aliases.
     *
     * @return service's aliases.
     */
    public Set getAliases() {
        return aliases;
    }

    /**
     * Adds service's analyzer.
     *
     * @return current instance.
     */
    // TODO: Candidate to remove, used only in legacy CDI integration.
    public D analyzeWith(String analyzer) {
        this.analyzer = analyzer;
        return (D) this;
    }

    /**
     * Adds service's contracts.
     *
     * @return current instance.
     */
    public D to(Collection> contracts) {
        if (contracts != null) {
            this.contracts.addAll(contracts);
        }
        return (D) this;
    }

    /**
     * Adds service's contract.
     *
     * @return current instance.
     */
    public D to(Class contract) {
        this.contracts.add(contract);
        return (D) this;
    }

    /**
     * Adds service's contract.
     *
     * @return current instance.
     */
    public D to(GenericType contract) {
        this.contracts.add(contract.getType());
        return (D) this;
    }

    /**
     * Adds service's contract.
     *
     * @return current instance.
     */
    public D to(Type contract) {
        this.contracts.add(contract);
        return (D) this;
    }

    /**
     * Adds service's qualifier.
     *
     * @return current instance.
     */
    public D qualifiedBy(Annotation annotation) {
        if (Named.class.equals(annotation.annotationType())) {
            this.name = ((Named) annotation).value();
        }
        this.qualifiers.add(annotation);
        return (D) this;
    }

    /**
     * Adds service's scope.
     *
     * @return current instance.
     */
    public D in(Class scopeAnnotation) {
        this.scope = scopeAnnotation;
        return (D) this;
    }

    /**
     * Adds service's name.
     *
     * @return current instance.
     */
    public D named(String name) {
        this.name = name;
        return (D) this;
    }

    /**
     * Adds service's alias.
     *
     * @param contract contract of the alias.
     * @return instance of a new alias for this binding descriptor that can be further specified.
     */
    public AliasBinding addAlias(Class contract) {
        AliasBinding alias = new AliasBinding(contract);
        aliases.add(alias);
        return alias;
    }

    /**
     * Adds information about proxy creation.
     *
     * @return current instance.
     */
    public D proxy(boolean proxiable) {
        this.proxiable = proxiable;
        return (D) this;
    }

    /**
     * Adds information about proxy creation when the service is in the same scope.
     *
     * @return current instance.
     */
    public D proxyForSameScope(boolean proxyForSameScope) {
        this.proxyForSameScope = proxyForSameScope;
        return (D) this;
    }

    /**
     * Adds service's rank.
     *
     * @return current instance.
     */
    public void ranked(int rank) {
        this.ranked = rank;
    }

    /**
     * Adds service's type.
     *
     * @return current instance.
     */
    D asType(Class type) {
        this.implementationType = type;
        return (D) this;
    }
}