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 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.xml.internal.ws.policy;

import com.sun.xml.internal.ws.api.policy.ModelTranslator;
import com.sun.xml.internal.ws.policy.Policy;
import com.sun.xml.internal.ws.policy.PolicyException;
import com.sun.xml.internal.ws.policy.PolicyMapExtender;
import com.sun.xml.internal.ws.policy.PolicySubject;
import com.sun.xml.internal.ws.resources.PolicyMessages;
import com.sun.xml.internal.ws.policy.privateutil.PolicyLogger;
import com.sun.xml.internal.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<String,PolicySourceModel> policyStore;
    Collection<String> policyURIs;
    Object policySubject;
    
    /**
     * Creates a new instance of BuilderHandler
     */
    BuilderHandler(Collection<String> policyURIs, Map<String,PolicySourceModel> 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<Policy> 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<Policy> result = new ArrayList<Policy>(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<PolicySubject> getPolicySubjects() throws PolicyException {
        final Collection<Policy> policies = getPolicies();
        final Collection<PolicySubject> result =  new ArrayList<PolicySubject>(policies.size());
        for (Policy policy : policies) {
            result.add(new PolicySubject(policySubject, policy));
        }
        return result;
    }
}