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/*
 * Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.ws.policy.jaxws;

import com.sun.xml.ws.api.policy.ModelTranslator;
import com.sun.xml.ws.policy.Policy;
import com.sun.xml.ws.policy.PolicyException;
import com.sun.xml.ws.policy.PolicyMapExtender;
import com.sun.xml.ws.policy.PolicySubject;
import com.sun.xml.ws.resources.PolicyMessages;
import com.sun.xml.ws.policy.privateutil.PolicyLogger;
import com.sun.xml.ws.policy.sourcemodel.PolicySourceModel;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;

/**
 *
 * @author Jakub Podlesak (jakub.podlesak at sun.com)
 */
abstract class BuilderHandler{

    private static final PolicyLogger LOGGER = PolicyLogger.getLogger(BuilderHandler.class);

    Map policyStore;
    Collection policyURIs;
    Object policySubject;
    
    /**
     * Creates a new instance of BuilderHandler
     */
    BuilderHandler(Collection policyURIs, Map policyStore, Object policySubject) {
        this.policyStore = policyStore;
        this.policyURIs = policyURIs;
        this.policySubject = policySubject;
    }
    
    final void populate(final PolicyMapExtender policyMapExtender) throws PolicyException {
        if (null == policyMapExtender) {
            throw LOGGER.logSevereException(new PolicyException(PolicyMessages.WSP_1006_POLICY_MAP_EXTENDER_CAN_NOT_BE_NULL()));
        }
        
        doPopulate(policyMapExtender);
    }
    
    protected abstract void doPopulate(final PolicyMapExtender policyMapExtender) throws PolicyException;
    
    final Collection getPolicies() throws PolicyException {
        if (null == policyURIs) {
            throw LOGGER.logSevereException(new PolicyException(PolicyMessages.WSP_1004_POLICY_URIS_CAN_NOT_BE_NULL()));
        }
        if (null == policyStore) {
            throw LOGGER.logSevereException(new PolicyException(PolicyMessages.WSP_1010_NO_POLICIES_DEFINED()));
        }
        
        final Collection result = new ArrayList<>(policyURIs.size());
        
        for (String policyURI : policyURIs) {
            final PolicySourceModel sourceModel = policyStore.get(policyURI);
            if (sourceModel == null) {
                throw LOGGER.logSevereException(new PolicyException(PolicyMessages.WSP_1005_POLICY_REFERENCE_DOES_NOT_EXIST(policyURI)));
            } else {
                result.add(ModelTranslator.getTranslator().translate(sourceModel));
            }
        }
        
        return result;
    }
    
    final Collection getPolicySubjects() throws PolicyException {
        final Collection policies = getPolicies();
        final Collection result = new ArrayList<>(policies.size());
        for (Policy policy : policies) {
            result.add(new PolicySubject(policySubject, policy));
        }
        return result;
    }
}