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package argos.metadata; |
| 32 | |
|
| 33 | |
import java.io.ByteArrayInputStream; |
| 34 | |
import java.io.File; |
| 35 | |
import java.io.IOException; |
| 36 | |
import java.io.Serializable; |
| 37 | |
import java.util.ArrayList; |
| 38 | |
import java.util.List; |
| 39 | |
import java.util.logging.Level; |
| 40 | |
import java.util.logging.Logger; |
| 41 | |
|
| 42 | |
import javax.xml.parsers.DocumentBuilder; |
| 43 | |
import javax.xml.parsers.DocumentBuilderFactory; |
| 44 | |
import javax.xml.parsers.ParserConfigurationException; |
| 45 | |
|
| 46 | |
import org.w3c.dom.Document; |
| 47 | |
import org.w3c.dom.Element; |
| 48 | |
import org.w3c.dom.NodeList; |
| 49 | |
import org.xml.sax.SAXException; |
| 50 | |
|
| 51 | |
import argos.Argos; |
| 52 | |
import argos.deploy.JarClassloader; |
| 53 | |
import argos.deploy.JarResource; |
| 54 | |
import argos.naming.NamingService; |
| 55 | |
import argos.util.Util; |
| 56 | |
import argos.util.graph.Node; |
| 57 | |
import argos.config.Config; |
| 58 | |
|
| 59 | |
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| 60 | |
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| 61 | |
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| 62 | |
|
| 63 | |
|
| 64 | 0 | public class ServiceMetaInfo extends Running implements Serializable { |
| 65 | |
public static final long serialVersionUID = 23947239478293479L; |
| 66 | |
|
| 67 | 0 | private static final Logger logger = Logger.getLogger(ServiceMetaInfo.class.getName()); |
| 68 | |
|
| 69 | |
private File orginalFile; |
| 70 | |
private File tempFile; |
| 71 | |
private File tempDir; |
| 72 | |
private String remoteFile; |
| 73 | |
private double version; |
| 74 | |
private String soapEndPoint; |
| 75 | |
private List<File> libraries; |
| 76 | |
private List<String> dependencies; |
| 77 | |
private List<ComponentMetaInfo> componentMetaInfo; |
| 78 | |
private transient JarClassloader loader; |
| 79 | |
|
| 80 | |
public ServiceMetaInfo(File file) throws ParserConfigurationException, IOException, SAXException, |
| 81 | |
InformationMissingException { |
| 82 | 0 | super(); |
| 83 | 0 | this.orginalFile = file; |
| 84 | |
|
| 85 | 0 | componentMetaInfo = new ArrayList<ComponentMetaInfo>(); |
| 86 | 0 | dependencies = new ArrayList<String>(); |
| 87 | 0 | libraries = new ArrayList<File>(); |
| 88 | |
|
| 89 | |
|
| 90 | 0 | JarResource jar = new JarResource(file); |
| 91 | 0 | byte[] bytes = jar.getResource(Config.DEPLOY_DESCRIPTOR); |
| 92 | 0 | if(bytes == null) { |
| 93 | 0 | throw new InformationMissingException("Deploy descriptor (deploy.xml) is missing in " + |
| 94 | |
file.getName() + "."); |
| 95 | |
} |
| 96 | 0 | DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
| 97 | 0 | DocumentBuilder parser = factory.newDocumentBuilder(); |
| 98 | 0 | Document document = parser.parse(new ByteArrayInputStream(bytes)); |
| 99 | 0 | Element service = document.getDocumentElement(); |
| 100 | |
|
| 101 | |
|
| 102 | |
|
| 103 | 0 | name = service.getAttribute("name"); |
| 104 | 0 | if(name == null) { |
| 105 | 0 | throw new InformationMissingException("The service name is missing"); |
| 106 | |
} |
| 107 | |
|
| 108 | |
|
| 109 | 0 | soapEndPoint = service.getAttribute("SoapEndPoint"); |
| 110 | |
|
| 111 | |
|
| 112 | 0 | NodeList elements = service.getElementsByTagName("depend"); |
| 113 | 0 | for(int i = 0; i < elements.getLength(); i++) { |
| 114 | 0 | Element element = (Element) elements.item(i); |
| 115 | 0 | Element parent = (Element) element.getParentNode(); |
| 116 | 0 | if(!service.equals(parent)) { |
| 117 | 0 | continue; |
| 118 | |
} |
| 119 | 0 | String on = element.getAttribute("on"); |
| 120 | 0 | if(on == null) { |
| 121 | 0 | throw new InformationMissingException("Dependency tag is missing on attribute"); |
| 122 | |
} |
| 123 | 0 | dependencies.add(on); |
| 124 | |
} |
| 125 | |
|
| 126 | |
|
| 127 | |
|
| 128 | 0 | String versionTemp = service.getAttribute("version"); |
| 129 | 0 | if(versionTemp == null) { |
| 130 | 0 | throw new InformationMissingException("The service version is missing"); |
| 131 | |
} |
| 132 | |
else { |
| 133 | 0 | version = Double.parseDouble(versionTemp); |
| 134 | |
} |
| 135 | |
|
| 136 | |
|
| 137 | 0 | elements = service.getElementsByTagName("deploy"); |
| 138 | 0 | if(elements.getLength() != 1) { |
| 139 | 0 | throw new InformationMissingException("There can only be ONE deploy tag"); |
| 140 | |
} |
| 141 | 0 | Element deploy = (Element) elements.item(0); |
| 142 | 0 | remoteFile = deploy.getAttribute("remote"); |
| 143 | |
|
| 144 | 0 | NodeList components = service.getElementsByTagName("component"); |
| 145 | 0 | for(int i = 0; i < components.getLength(); i++) { |
| 146 | 0 | componentMetaInfo.add(new ComponentMetaInfo(this, (Element) components.item(i))); |
| 147 | |
} |
| 148 | 0 | } |
| 149 | |
|
| 150 | |
public void setupDependencies(List<ServiceMetaInfo> services) throws DependencyMissingException { |
| 151 | 0 | for(String depends : dependencies) { |
| 152 | 0 | boolean found = false; |
| 153 | 0 | for(ServiceMetaInfo service : services) { |
| 154 | 0 | if(depends.equals(service.getName())) { |
| 155 | 0 | thisDependsOn.add(service); |
| 156 | 0 | service.dependsOnThis.add(this); |
| 157 | 0 | found = true; |
| 158 | 0 | break; |
| 159 | |
} |
| 160 | |
} |
| 161 | 0 | if(!found) { |
| 162 | 0 | ServiceMetaInfo service = NamingService.getInstance().getServiceByName(depends, false); |
| 163 | 0 | if(service == null) { |
| 164 | 0 | throw new DependencyMissingException("missing dependency " + depends + "."); |
| 165 | |
} |
| 166 | |
} |
| 167 | 0 | } |
| 168 | |
|
| 169 | |
|
| 170 | |
try { |
| 171 | 0 | for(ComponentMetaInfo meta : componentMetaInfo) { |
| 172 | 0 | meta.setupDependencies(services); |
| 173 | |
} |
| 174 | |
} |
| 175 | 0 | catch(DependencyMissingException e) { |
| 176 | 0 | for(ComponentMetaInfo meta : componentMetaInfo) { |
| 177 | |
|
| 178 | 0 | meta.resetDependencies(); |
| 179 | |
} |
| 180 | 0 | throw e; |
| 181 | 0 | } |
| 182 | 0 | } |
| 183 | |
|
| 184 | |
public void setClassLoader(JarClassloader loader) { |
| 185 | 0 | this.loader = loader; |
| 186 | 0 | } |
| 187 | |
|
| 188 | |
public JarClassloader getClassLoader() { |
| 189 | 0 | return loader; |
| 190 | |
} |
| 191 | |
|
| 192 | |
public void addComponentMetaInfo(ComponentMetaInfo component) { |
| 193 | 0 | componentMetaInfo.add(component); |
| 194 | 0 | } |
| 195 | |
|
| 196 | |
public List<ComponentMetaInfo> getComponentMetaInfo() { |
| 197 | 0 | List<ComponentMetaInfo> list = new ArrayList<ComponentMetaInfo>(); |
| 198 | 0 | for(ComponentMetaInfo temp : componentMetaInfo) { |
| 199 | 0 | list.add(temp); |
| 200 | |
} |
| 201 | 0 | return list; |
| 202 | |
} |
| 203 | |
|
| 204 | |
public List<File> getLibraries() { |
| 205 | 0 | List<File> list = new ArrayList<File>(); |
| 206 | 0 | for(File temp : libraries) { |
| 207 | 0 | list.add(temp); |
| 208 | |
} |
| 209 | 0 | return list; |
| 210 | |
} |
| 211 | |
|
| 212 | |
public boolean createTempFile() { |
| 213 | 0 | String dir = Argos.TEMP_DIR + "/" + getName() + System.currentTimeMillis(); |
| 214 | 0 | tempDir = new File(dir); |
| 215 | 0 | tempDir.mkdir(); |
| 216 | 0 | tempFile = new File(dir + "/" + orginalFile.getName()); |
| 217 | |
|
| 218 | |
try { |
| 219 | 0 | Util.copyFile(orginalFile, tempFile); |
| 220 | |
} |
| 221 | 0 | catch (IOException e) { |
| 222 | 0 | logger.log(Level.SEVERE, "Unable to copy " + orginalFile.getName() + " to temp dir: " + |
| 223 | |
e.getMessage(), e); |
| 224 | 0 | Util.cleanDir(tempDir); |
| 225 | 0 | return false; |
| 226 | 0 | } |
| 227 | |
|
| 228 | 0 | File libDir = new File(dir + "/lib"); |
| 229 | 0 | libDir.mkdir(); |
| 230 | |
try { |
| 231 | 0 | libraries = Util.extractFromJar(orginalFile, "lib", dir, false); |
| 232 | 0 | if(libraries.isEmpty()) { |
| 233 | 0 | libDir.delete(); |
| 234 | |
} |
| 235 | |
} |
| 236 | 0 | catch(IOException e) { |
| 237 | 0 | logger.log(Level.SEVERE, "Unable to extract files from " + orginalFile.getName() + |
| 238 | |
" to temp dir: " + e.getMessage(), e); |
| 239 | 0 | Util.cleanDir(tempDir); |
| 240 | 0 | return false; |
| 241 | 0 | } |
| 242 | 0 | return true; |
| 243 | |
} |
| 244 | |
|
| 245 | |
public File getTempDir() { |
| 246 | 0 | return tempDir; |
| 247 | |
} |
| 248 | |
|
| 249 | |
public File getTempFile() { |
| 250 | 0 | return tempFile; |
| 251 | |
} |
| 252 | |
|
| 253 | |
public ComponentMetaInfo getComponentMetaInfo(String componentName) { |
| 254 | 0 | for(ComponentMetaInfo comp : componentMetaInfo) { |
| 255 | 0 | if(comp.getName().equals(componentName)) { |
| 256 | 0 | return comp; |
| 257 | |
} |
| 258 | |
} |
| 259 | 0 | logger.severe("Unable to find component " + componentName); |
| 260 | 0 | return null; |
| 261 | |
} |
| 262 | |
|
| 263 | |
public List<String> getDependencies() { |
| 264 | 0 | return dependencies; |
| 265 | |
} |
| 266 | |
|
| 267 | |
public String getRemoteFile() { |
| 268 | 0 | return remoteFile; |
| 269 | |
} |
| 270 | |
|
| 271 | |
public double getVersion() { |
| 272 | 0 | return version; |
| 273 | |
} |
| 274 | |
|
| 275 | |
public File getFile() { |
| 276 | 0 | return orginalFile; |
| 277 | |
} |
| 278 | |
|
| 279 | |
public String getSoapEndPoint() { |
| 280 | 0 | return soapEndPoint; |
| 281 | |
} |
| 282 | |
|
| 283 | |
public void cleanUp() { |
| 284 | 0 | Util.cleanDir(tempDir); |
| 285 | 0 | tempDir.delete(); |
| 286 | 0 | } |
| 287 | |
|
| 288 | |
public static void cleanUpTempFolder() { |
| 289 | 0 | Util.cleanDir(new File(Argos.TEMP_DIR)); |
| 290 | 0 | } |
| 291 | |
|
| 292 | |
@Override |
| 293 | |
public boolean equals(Object o) { |
| 294 | 0 | if(o instanceof ServiceMetaInfo) { |
| 295 | 0 | ServiceMetaInfo service = (ServiceMetaInfo) o; |
| 296 | 0 | return service.hashCode() == hashCode(); |
| 297 | |
} |
| 298 | 0 | return false; |
| 299 | |
} |
| 300 | |
|
| 301 | |
@Override |
| 302 | |
public int hashCode() { |
| 303 | 0 | return name.hashCode(); |
| 304 | |
} |
| 305 | |
|
| 306 | |
@Override |
| 307 | |
public String toString() { |
| 308 | 0 | return getName(); |
| 309 | |
} |
| 310 | |
|
| 311 | |
public boolean dependsOn(ServiceMetaInfo service) { |
| 312 | 0 | for(String s : dependencies) { |
| 313 | 0 | ServiceMetaInfo temp = NamingService.getInstance().getServiceByName(s); |
| 314 | 0 | if(temp != null) { |
| 315 | 0 | if(service == temp) { |
| 316 | 0 | return true; |
| 317 | |
} |
| 318 | |
else { |
| 319 | 0 | if(temp.dependsOn(service)) { |
| 320 | 0 | return true; |
| 321 | |
} |
| 322 | |
} |
| 323 | |
} |
| 324 | 0 | } |
| 325 | 0 | return false; |
| 326 | |
} |
| 327 | |
|
| 328 | |
@Override |
| 329 | |
public int compareTo(Node node) { |
| 330 | 0 | if(name.startsWith(Config.BANG_BANG) && !node.getName().startsWith(Config.BANG_BANG)) { |
| 331 | 0 | return -1; |
| 332 | |
} |
| 333 | 0 | else if(!name.startsWith(Config.BANG_BANG) && node.getName().startsWith(Config.BANG_BANG)) { |
| 334 | 0 | return 1; |
| 335 | |
} |
| 336 | |
else { |
| 337 | 0 | return super.compareTo(node); |
| 338 | |
} |
| 339 | |
} |
| 340 | |
} |