-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-
-package org.opendaylight.controller.netconf.util.messages;
-
-import com.google.common.base.Function;
-import com.google.common.base.Optional;
-import com.google.common.collect.Collections2;
-import java.util.Collection;
-import java.util.List;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.config.util.xml.DocumentedException;
-import org.opendaylight.controller.config.util.xml.XmlElement;
-import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
-import org.opendaylight.controller.netconf.api.NetconfMessage;
-import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.w3c.dom.Document;
-
-public final class NetconfMessageUtil {
-
- private static final Logger LOG = LoggerFactory.getLogger(NetconfMessageUtil.class);
-
- private NetconfMessageUtil() {}
-
- public static boolean isOKMessage(NetconfMessage message) throws NetconfDocumentedException {
- return isOKMessage(message.getDocument());
- }
-
- public static boolean isOKMessage(Document document) throws NetconfDocumentedException {
- return isOKMessage(XmlElement.fromDomDocument(document));
- }
-
- public static boolean isOKMessage(XmlElement xmlElement) throws NetconfDocumentedException {
- if(xmlElement.getChildElements().size() != 1) {
- return false;
- }
- try {
- return xmlElement.getOnlyChildElement().getName().equals(XmlNetconfConstants.OK);
- } catch (DocumentedException e) {
- throw new NetconfDocumentedException(e);
- }
- }
-
- public static boolean isErrorMessage(NetconfMessage message) throws NetconfDocumentedException {
- return isErrorMessage(message.getDocument());
- }
-
- public static boolean isErrorMessage(Document document) throws NetconfDocumentedException {
- return isErrorMessage(XmlElement.fromDomDocument(document));
- }
-
- public static boolean isErrorMessage(XmlElement xmlElement) throws NetconfDocumentedException {
- if(xmlElement.getChildElements().size() != 1) {
- return false;
- }
- try {
- return xmlElement.getOnlyChildElement().getName().equals(DocumentedException.RPC_ERROR);
- } catch (DocumentedException e) {
- throw new NetconfDocumentedException(e);
- }
- }
-
- public static Collection<String> extractCapabilitiesFromHello(Document doc) throws NetconfDocumentedException {
- XmlElement responseElement = XmlElement.fromDomDocument(doc);
- // Extract child element <capabilities> from <hello> with or without(fallback) the same namespace
- Optional<XmlElement> capabilitiesElement = responseElement
- .getOnlyChildElementWithSameNamespaceOptionally(XmlNetconfConstants.CAPABILITIES)
- .or(responseElement
- .getOnlyChildElementOptionally(XmlNetconfConstants.CAPABILITIES));
-
- List<XmlElement> caps = capabilitiesElement.get().getChildElements(XmlNetconfConstants.CAPABILITY);
- return Collections2.transform(caps, new Function<XmlElement, String>() {
-
- @Override
- public String apply(@Nonnull XmlElement input) {
- // Trim possible leading/tailing whitespace
- try {
- return input.getTextContent().trim();
- } catch (DocumentedException e) {
- LOG.trace("Error fetching input text content",e);
- return null;
- }
- }
- });
-
- }
-}