| // 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 org.apache.log4j.Logger; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| public class LibvirtCapXMLParser extends LibvirtXMLParser { |
| private boolean _host = false; |
| private boolean _guest = false; |
| private boolean _osType = false; |
| private boolean _domainTypeKVM = false; |
| private boolean _emulatorFlag = false; |
| private boolean _archTypex8664 = false; |
| private final StringBuffer _emulator = new StringBuffer(); |
| private final StringBuffer _capXML = new StringBuffer(); |
| private static final Logger s_logger = Logger.getLogger(LibvirtCapXMLParser.class); |
| private final ArrayList<String> guestOsTypes = new ArrayList<String>(); |
| |
| @Override |
| public void endElement(String uri, String localName, String qName) throws SAXException { |
| if (qName.equalsIgnoreCase("host")) { |
| _host = false; |
| } else if (qName.equalsIgnoreCase("os_type")) { |
| _osType = false; |
| } else if (qName.equalsIgnoreCase("guest")) { |
| _guest = false; |
| } else if (qName.equalsIgnoreCase("domain")) { |
| _domainTypeKVM = false; |
| } else if (qName.equalsIgnoreCase("emulator")) { |
| _emulatorFlag = false; |
| } else if (qName.equalsIgnoreCase("arch")) { |
| _archTypex8664 = false; |
| } else if (_host) { |
| _capXML.append("<").append("/").append(qName).append(">"); |
| } |
| } |
| |
| @Override |
| public void characters(char[] ch, int start, int length) throws SAXException { |
| if (_host) { |
| _capXML.append(ch, start, length); |
| } else if (_osType) { |
| guestOsTypes.add(new String(ch, start, length)); |
| } else if (_emulatorFlag) { |
| s_logger.debug("Found " + new String(ch, start, length) + " as a suiteable emulator"); |
| _emulator.append(ch, start, length); |
| } |
| } |
| |
| @Override |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| if (qName.equalsIgnoreCase("host")) { |
| _host = true; |
| } else if (qName.equalsIgnoreCase("guest")) { |
| _guest = true; |
| } else if (qName.equalsIgnoreCase("os_type")) { |
| if (_guest) { |
| _osType = true; |
| } |
| } else if (qName.equalsIgnoreCase("arch")) { |
| for (int i = 0; i < attributes.getLength(); i++) { |
| if (attributes.getQName(i).equalsIgnoreCase("name") && attributes.getValue(i).equalsIgnoreCase("x86_64")) { |
| _archTypex8664 = true; |
| } |
| } |
| } else if (qName.equalsIgnoreCase("domain")) { |
| for (int i = 0; i < attributes.getLength(); i++) { |
| if (attributes.getQName(i).equalsIgnoreCase("type") && attributes.getValue(i).equalsIgnoreCase("kvm")) { |
| _domainTypeKVM = true; |
| } |
| } |
| } else if (qName.equalsIgnoreCase("emulator") && _domainTypeKVM && _archTypex8664) { |
| _emulatorFlag = true; |
| _emulator.delete(0, _emulator.length()); |
| } else if (_host) { |
| _capXML.append("<").append(qName); |
| for (int i = 0; i < attributes.getLength(); i++) { |
| _capXML.append(" ").append(attributes.getQName(i)).append("=").append(attributes.getValue(i)); |
| } |
| _capXML.append(">"); |
| } |
| |
| } |
| |
| public String parseCapabilitiesXML(String capXML) { |
| if (!_initialized) { |
| return null; |
| } |
| try { |
| _sp.parse(new InputSource(new StringReader(capXML)), this); |
| return _capXML.toString(); |
| } catch (SAXException se) { |
| s_logger.warn(se.getMessage()); |
| } catch (IOException ie) { |
| s_logger.error(ie.getMessage()); |
| } |
| return null; |
| } |
| |
| public ArrayList<String> getGuestOsType() { |
| return guestOsTypes; |
| } |
| |
| public String getEmulator() { |
| return _emulator.toString(); |
| } |
| |
| } |