| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| package com.cloud.hypervisor.kvm.resource; |
| |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.ParserConfigurationException; |
| |
| import org.apache.cloudstack.utils.security.ParserUtils; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.LogManager; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| public class LibvirtStoragePoolXMLParser { |
| protected Logger logger = LogManager.getLogger(getClass()); |
| |
| public LibvirtStoragePoolDef parseStoragePoolXML(String poolXML) { |
| DocumentBuilder builder; |
| try { |
| builder = ParserUtils.getSaferDocumentBuilderFactory().newDocumentBuilder(); |
| |
| InputSource is = new InputSource(); |
| is.setCharacterStream(new StringReader(poolXML)); |
| Document doc = builder.parse(is); |
| |
| Element rootElement = doc.getDocumentElement(); |
| String type = rootElement.getAttribute("type"); |
| |
| String uuid = getTagValue("uuid", rootElement); |
| |
| String poolName = getTagValue("name", rootElement); |
| |
| Element source = (Element)rootElement.getElementsByTagName("source").item(0); |
| String host = getStorageHosts(source); |
| String format = getAttrValue("format", "type", source); |
| |
| if (type.equalsIgnoreCase("rbd") || type.equalsIgnoreCase("powerflex")) { |
| int port = 0; |
| String xmlPort = getAttrValue("host", "port", source); |
| if (StringUtils.isNotBlank(xmlPort)) { |
| port = Integer.parseInt(xmlPort); |
| } |
| String pool = getTagValue("name", source); |
| |
| Element auth = (Element)source.getElementsByTagName("auth").item(0); |
| |
| if (auth != null) { |
| String authUsername = auth.getAttribute("username"); |
| String authType = auth.getAttribute("type"); |
| return new LibvirtStoragePoolDef(LibvirtStoragePoolDef.PoolType.valueOf(type.toUpperCase()), poolName, uuid, host, port, pool, authUsername, |
| LibvirtStoragePoolDef.AuthenticationType.valueOf(authType.toUpperCase()), uuid); |
| } else { |
| return new LibvirtStoragePoolDef(LibvirtStoragePoolDef.PoolType.valueOf(type.toUpperCase()), poolName, uuid, host, port, pool, ""); |
| } |
| /* Gluster is a sub-type of LibvirtStoragePoolDef.poolType.NETFS, need to check format */ |
| } else if (format != null && format.equalsIgnoreCase("glusterfs")) { |
| /* libvirt does not return the default port, but requires it for a disk-definition */ |
| int port = 24007; |
| |
| String path = getAttrValue("dir", "path", source); |
| |
| Element target = (Element) rootElement.getElementsByTagName( |
| "target").item(0); |
| String targetPath = getTagValue("path", target); |
| |
| String portValue = getAttrValue("host", "port", source); |
| if (portValue != null && !portValue.isEmpty()) |
| port = Integer.parseInt(portValue); |
| |
| return new LibvirtStoragePoolDef(LibvirtStoragePoolDef.PoolType.valueOf(format.toUpperCase()), |
| poolName, uuid, host, port, path, targetPath); |
| } else { |
| String path = getAttrValue("dir", "path", source); |
| |
| Element target = (Element)rootElement.getElementsByTagName("target").item(0); |
| String targetPath = getTagValue("path", target); |
| |
| return new LibvirtStoragePoolDef(LibvirtStoragePoolDef.PoolType.valueOf(type.toUpperCase()), poolName, uuid, host, path, targetPath); |
| } |
| } catch (ParserConfigurationException e) { |
| logger.debug(e.toString()); |
| } catch (SAXException e) { |
| logger.debug(e.toString()); |
| } catch (IOException e) { |
| logger.debug(e.toString()); |
| } |
| return null; |
| } |
| |
| private static String getTagValue(String tag, Element eElement) { |
| NodeList nlList = eElement.getElementsByTagName(tag).item(0).getChildNodes(); |
| Node nValue = nlList.item(0); |
| |
| return nValue.getNodeValue(); |
| } |
| |
| private static String getAttrValue(String tag, String attr, Element eElement) { |
| NodeList tagNode = eElement.getElementsByTagName(tag); |
| if (tagNode.getLength() == 0) { |
| return null; |
| } |
| Element node = (Element)tagNode.item(0); |
| return node.getAttribute(attr); |
| } |
| |
| protected static String getStorageHosts(Element parentElement) { |
| List<String> storageHosts = new ArrayList<>(); |
| NodeList hosts = parentElement.getElementsByTagName("host"); |
| for (int j = 0; j < hosts.getLength(); j++) { |
| storageHosts.add(((Element) hosts.item(j)).getAttribute("name")); |
| } |
| return StringUtils.join(storageHosts, ","); |
| } |
| } |