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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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package com.sun.xml.internal.ws.api.wsdl.parser;

import com.sun.istack.internal.NotNull;
import com.sun.istack.internal.Nullable;

import java.net.URI;

/**
 * Resolves metadata such as WSDL/schema. This serves as extensibile plugin point which a wsdl parser can use to
 * get the metadata from an endpoint.
 *
 * @author Vivek Pandey
 */
public abstract class MetaDataResolver {
    /**
     * Gives {@link com.sun.xml.internal.ws.api.wsdl.parser.ServiceDescriptor} resolved from the given location.
     *
     * TODO: Does this method need to propogate errors?
     *
     * @param location metadata location
     * @return {@link com.sun.xml.internal.ws.api.wsdl.parser.ServiceDescriptor} resolved from the location. It may be null in the cases when MetadataResolver
     *         can get the metada associated with the metadata loction.
     */
    public abstract @Nullable ServiceDescriptor resolve(@NotNull URI location);
}
