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 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package com.sun.xml.internal.ws.policy.sourcemodel;

import java.net.URI;
import java.util.HashMap;
import java.util.Map;

/**
 *
 * @author Marek Potociar, Jakub Podlesak
 */
public final class PolicySourceModelContext {

    Map<URI,PolicySourceModel> policyModels;

    /**
     * Private constructor prevents instantiation of the instance from outside of the class
     */
    private PolicySourceModelContext() {
        // nothing to initialize
    }

    private Map<URI,PolicySourceModel> getModels() {
        if (null==policyModels) {
            policyModels = new HashMap<URI,PolicySourceModel>();
        }
        return policyModels;
    }

    public void addModel(final URI modelUri, final PolicySourceModel model) {
        getModels().put(modelUri,model);
    }

    public static PolicySourceModelContext createContext() {
        return new PolicySourceModelContext();
    }

    public boolean containsModel(final URI modelUri) {
        return getModels().containsKey(modelUri);
    }

    PolicySourceModel retrieveModel(final URI modelUri) {
        return getModels().get(modelUri);
    }

    PolicySourceModel retrieveModel(final URI modelUri, final URI digestAlgorithm, final String digest) {
        // TODO: implement
        throw new UnsupportedOperationException();
    }

    @Override
    public String toString() {
        return "PolicySourceModelContext: policyModels = " + this.policyModels;
    }
}