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 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * 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

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

import com.sun.xml.internal.txw2.TXW;

import com.sun.xml.internal.txw2.TypedXmlWriter;

import com.sun.xml.internal.txw2.output.StaxSerializer;

import com.sun.xml.internal.ws.policy.sourcemodel.wspolicy.XmlToken;

import com.sun.xml.internal.ws.policy.sourcemodel.wspolicy.NamespaceVersion;

import com.sun.xml.internal.ws.policy.PolicyConstants;

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;

import java.util.Collection;

import java.util.Map;

import java.util.Map.Entry;

import javax.xml.namespace.QName;

import javax.xml.stream.XMLStreamWriter;

public final class XmlPolicyModelMarshaller extends PolicyModelMarshaller {

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

    private final boolean marshallInvisible;

    XmlPolicyModelMarshaller(boolean marshallInvisible) {

        this.marshallInvisible = marshallInvisible;

    }

    public void marshal(final PolicySourceModel model, final Object storage) throws PolicyException {

        if (storage instanceof StaxSerializer) {

            marshal(model, (StaxSerializer) storage);

        } else if (storage instanceof TypedXmlWriter) {

            marshal(model, (TypedXmlWriter) storage);

        } else if (storage instanceof XMLStreamWriter) {

            marshal(model, (XMLStreamWriter) storage);

        } else {

            throw LOGGER.logSevereException(new PolicyException(LocalizationMessages.WSP_0022_STORAGE_TYPE_NOT_SUPPORTED(storage.getClass().getName())));

        }

    }

    public void marshal(final Collection<PolicySourceModel> models, final Object storage) throws PolicyException {

        for (PolicySourceModel model : models) {

            marshal(model, storage);

        }

    }

    /**

     * Marshal a policy onto the given StaxSerializer.

     *

     * @param model A policy source model.

     * @param writer A Stax serializer.

     * @throws PolicyException If marshalling failed.

     */

    private void marshal(final PolicySourceModel model, final StaxSerializer writer) throws PolicyException {

        final TypedXmlWriter policy = TXW.create(model.getNamespaceVersion().asQName(XmlToken.Policy), TypedXmlWriter.class, writer);

        marshalDefaultPrefixes(model, policy);

        marshalPolicyAttributes(model, policy);

        marshal(model.getNamespaceVersion(), model.getRootNode(), policy);

        policy.commit();

    }

    /**

     * Marshal a policy onto the given TypedXmlWriter.

     *

     * @param model A policy source model.

     * @param writer A typed XML writer.

     * @throws PolicyException If marshalling failed.

     */

    private void marshal(final PolicySourceModel model, final TypedXmlWriter writer) throws PolicyException {

        final TypedXmlWriter policy = writer._element(model.getNamespaceVersion().asQName(XmlToken.Policy), TypedXmlWriter.class);

        marshalDefaultPrefixes(model, policy);

        marshalPolicyAttributes(model, policy);

        marshal(model.getNamespaceVersion(), model.getRootNode(), policy);

    }

    /**

     * Marshal a policy onto the given XMLStreamWriter.

     *

     * @param model A policy source model.

     * @param writer An XML stream writer.

     * @throws PolicyException If marshalling failed.

     */

    private void marshal(final PolicySourceModel model, final XMLStreamWriter writer) throws PolicyException {

        final StaxSerializer serializer = new StaxSerializer(writer);

        final TypedXmlWriter policy = TXW.create(model.getNamespaceVersion().asQName(XmlToken.Policy), TypedXmlWriter.class, serializer);

        marshalDefaultPrefixes(model, policy);

        marshalPolicyAttributes(model, policy);

        marshal(model.getNamespaceVersion(), model.getRootNode(), policy);

        policy.commit();

        serializer.flush();

    }

    /**

     * Marshal the Policy root element attributes onto the TypedXmlWriter.

     *

     * @param model The policy source model.

     * @param writer The typed XML writer.

     */

    private static void marshalPolicyAttributes(final PolicySourceModel model, final TypedXmlWriter writer) {

        final String policyId = model.getPolicyId();

        if (policyId != null) {

            writer._attribute(PolicyConstants.WSU_ID, policyId);

        }

        final String policyName = model.getPolicyName();

        if (policyName != null) {

            writer._attribute(model.getNamespaceVersion().asQName(XmlToken.Name), policyName);

        }

    }

    /**

     * Marshal given ModelNode and child elements on given TypedXmlWriter.

     *

     * @param nsVersion The WS-Policy version.

     * @param rootNode The ModelNode that is marshalled.

     * @param writer The TypedXmlWriter onto which the content of the rootNode is marshalled.

     */

    private void marshal(final NamespaceVersion nsVersion, final ModelNode rootNode, final TypedXmlWriter writer) {

        for (ModelNode node : rootNode) {

            final AssertionData data = node.getNodeData();

            if (marshallInvisible || data == null || !data.isPrivateAttributeSet()) {

                TypedXmlWriter child = null;

                if (data == null) {

                    child = writer._element(nsVersion.asQName(node.getType().getXmlToken()), TypedXmlWriter.class);

                } else {

                    child = writer._element(data.getName(), TypedXmlWriter.class);

                    final String value = data.getValue();

                    if (value != null) {

                        child._pcdata(value);

                    }

                    if (data.isOptionalAttributeSet()) {

                        child._attribute(nsVersion.asQName(XmlToken.Optional), Boolean.TRUE);

                    }

                    if (data.isIgnorableAttributeSet()) {

                        child._attribute(nsVersion.asQName(XmlToken.Ignorable), Boolean.TRUE);

                    }

                    for (Entry<QName, String> entry : data.getAttributesSet()) {

                        child._attribute(entry.getKey(), entry.getValue());

                    }

                }

                marshal(nsVersion, node, child);

            }

        }

    }

    /**

     * Write default prefixes onto the given TypedXmlWriter

     *

     * @param model The policy source model. May not be null.

     * @param writer The TypedXmlWriter. May not be null.

     * @throws PolicyException If the creation of the prefix to namespace URI map failed.

     */

    private void marshalDefaultPrefixes(final PolicySourceModel model, final TypedXmlWriter writer) throws PolicyException {

        final Map<String, String> nsMap = model.getNamespaceToPrefixMapping();

        if (!marshallInvisible && nsMap.containsKey(PolicyConstants.SUN_POLICY_NAMESPACE_URI)) {

            nsMap.remove(PolicyConstants.SUN_POLICY_NAMESPACE_URI);

        }

        for (Map.Entry<String, String> nsMappingEntry : nsMap.entrySet()) {

            writer._namespace(nsMappingEntry.getKey(), nsMappingEntry.getValue());

        }

    }

}