/*
 * Copyright (c) 1997, 2012, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.xml.internal.ws.policy.sourcemodel;

import com.sun.xml.internal.ws.policy.AssertionSet;
import com.sun.xml.internal.ws.policy.NestedPolicy;
import com.sun.xml.internal.ws.policy.Policy;
import com.sun.xml.internal.ws.policy.PolicyAssertion;
import com.sun.xml.internal.ws.policy.PolicyException;
import com.sun.xml.internal.ws.policy.privateutil.LocalizationMessages;
import com.sun.xml.internal.ws.policy.privateutil.PolicyLogger;

Create a compact WS-Policy infoset. ExactlyOne and All elements are omitted
where possible.
Author:
Fabian Ritzmann/**
 * Create a compact WS-Policy infoset. ExactlyOne and All elements are omitted
 * where possible.
 *
 * @author Fabian Ritzmann
 */
class CompactModelGenerator extends PolicyModelGenerator {

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

    private final PolicySourceModelCreator sourceModelCreator;


    CompactModelGenerator(PolicySourceModelCreator sourceModelCreator) {
        this.sourceModelCreator = sourceModelCreator;
    }

    @Override
    public PolicySourceModel translate(final Policy policy) throws PolicyException {
        LOGGER.entering(policy);

        PolicySourceModel model = null;

        if (policy == null) {
            LOGGER.fine(LocalizationMessages.WSP_0047_POLICY_IS_NULL_RETURNING());
        } else {
            model = this.sourceModelCreator.create(policy);
            ModelNode rootNode = model.getRootNode();
            final int numberOfAssertionSets = policy.getNumberOfAssertionSets();
            if (numberOfAssertionSets > 1) {
                rootNode = rootNode.createChildExactlyOneNode();
            }
            ModelNode alternativeNode = rootNode;
            for (AssertionSet set : policy) {
                if (numberOfAssertionSets > 1) {
                    alternativeNode = rootNode.createChildAllNode();
                }
                for (PolicyAssertion assertion : set) {
                    final AssertionData data = AssertionData.createAssertionData(assertion.getName(), assertion.getValue(), assertion.getAttributes(), assertion.isOptional(), assertion.isIgnorable());
                    final ModelNode assertionNode = alternativeNode.createChildAssertionNode(data);
                    if (assertion.hasNestedPolicy()) {
                        translate(assertionNode, assertion.getNestedPolicy());
                    }
                    if (assertion.hasParameters()) {
                        translate(assertionNode, assertion.getParametersIterator());
                    }
                }
            }
        }

        LOGGER.exiting(model);
        return model;
    }

    @Override
    protected ModelNode translate(final ModelNode parentAssertion, final NestedPolicy policy) {
        final ModelNode nestedPolicyRoot = parentAssertion.createChildPolicyNode();
        final AssertionSet set = policy.getAssertionSet();
        translate(nestedPolicyRoot, set);
        return nestedPolicyRoot;
    }

}