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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011-2014 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 com.fitburpliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.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 com.fitbursignates this particular file as subject to the "Classpath"
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 *
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package com.fitbur.glassfish.com.fitbur.internal;

import java.util.Map;

import javax.ws.rs.RuntimeType;

import com.fitbur.glassfish.com.fitbur.CommonProperties;

import com.fitbur.glassfish.hk2.utilities.binding.AbstractBinder;

/**
 * Simple ServiceFinder injection binder.
 *
 * Looks for all implementations of a given contract using {@link ServiceFinder}
 * and registers found instances to {@link com.fitbur.glassfish.hk2.api.ServiceLocator}.
 *
 * @param  contract type.
 * @author Pavel Bucek (pavel.bucek at oracle.com.fitbur)
 * @author Libor Kramolis (libor.kramolis at oracle.com.fitbur)
 */
public class ServiceFinderBinder extends AbstractBinder {

    private final Class contract;

    private final Map applicationProperties;

    private final RuntimeType runtimeType;

    /**
     * Create a new service finder injection binder.
     *
     * @param contract contract of the service providers bound by this binder.
     * @param applicationProperties map containing application properties. May be {@code null}.
     * @param runtimeType runtime (client or server) where the service finder binder is used.
     */
    public ServiceFinderBinder(Class contract, Map applicationProperties, RuntimeType runtimeType) {
        this.contract = contract;
        this.applicationProperties = applicationProperties;
        this.runtimeType = runtimeType;
    }

    @Override
    protected void configure() {
        final boolean METAINF_SERVICES_LOOKUP_DISABLE_DEFAULT = false;
        boolean disableMetainfServicesLookup = METAINF_SERVICES_LOOKUP_DISABLE_DEFAULT;
        if (applicationProperties != null) {
            disableMetainfServicesLookup = CommonProperties.getValue(applicationProperties, runtimeType,
                    CommonProperties.METAINF_SERVICES_LOOKUP_DISABLE, METAINF_SERVICES_LOOKUP_DISABLE_DEFAULT, Boolean.class);
        }
        if (!disableMetainfServicesLookup) {
            for (Class t : ServiceFinder.find(contract, true).toClassArray()) {
                bind(t).to(contract);
            }
        }
    }
}