--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.services.adaption;\r
+\r
+import java.io.File;\r
+import java.io.StringReader;\r
+import java.net.URL;\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.HashMap;\r
+import java.util.List;\r
+import java.util.Map;\r
+\r
+import javax.xml.parsers.DocumentBuilder;\r
+import javax.xml.parsers.DocumentBuilderFactory;\r
+\r
+import org.eclipse.core.runtime.Path;\r
+import org.eclipse.core.runtime.Platform;\r
+import org.osgi.framework.Bundle;\r
+import org.osgi.framework.BundleContext;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.adaption.Adapter;\r
+import org.simantics.db.adaption.AdapterInstaller;\r
+import org.simantics.db.adaption.AdaptionService;\r
+import org.simantics.db.common.request.ReadRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.services.adaption.reflection.AdaptingDynamicAdapter2;\r
+import org.simantics.db.services.adaption.reflection.AtMostOneRelatedResource2;\r
+import org.simantics.db.services.adaption.reflection.ConstantAdapter;\r
+import org.simantics.db.services.adaption.reflection.GraphObject2;\r
+import org.simantics.db.services.adaption.reflection.IDynamicAdapter2;\r
+import org.simantics.db.services.adaption.reflection.OrderedSetResources2;\r
+import org.simantics.db.services.adaption.reflection.ReflectionAdapter2;\r
+import org.simantics.db.services.adaption.reflection.RelatedResources2;\r
+import org.simantics.db.services.adaption.reflection.SingleRelatedResource2;\r
+import org.simantics.db.services.adaption.reflection.StaticMethodAdapter;\r
+import org.simantics.db.services.adaption.reflection.ThisResource2;\r
+import org.simantics.scl.reflection.OntologyVersions;\r
+import org.simantics.utils.FileUtils;\r
+import org.w3c.dom.DOMException;\r
+import org.w3c.dom.Document;\r
+import org.w3c.dom.NamedNodeMap;\r
+import org.w3c.dom.Node;\r
+import org.w3c.dom.NodeList;\r
+import org.xml.sax.ErrorHandler;\r
+import org.xml.sax.InputSource;\r
+import org.xml.sax.SAXException;\r
+import org.xml.sax.SAXParseException;\r
+\r
+public class AdapterRegistry2 {\r
+\r
+ public static final String ADAPTERS_FILE = "adapters.xml";\r
+\r
+ public static final String ADAPTERS = "adapters";\r
+ public static final String ADAPTER = "adapter";\r
+ public static final String TARGET = "target";\r
+ public static final String BASE_TYPE = "baseType";\r
+ public static final String TYPE = "type";\r
+ public static final String RESOURCE = "resource";\r
+ public static final String URI = "uri";\r
+ public static final String INTERFACE = "interface";\r
+ public static final String CLASS = "class";\r
+ public static final String ADAPTER_CLASS = "adapterClass";\r
+ public static final String CONTEXT_CLASS = "contextClass";\r
+ public static final String INSTALLER = "installer";\r
+ public static final String CONSTRUCTOR = "constructor";\r
+\r
+ static private AdapterRegistry2 instance = new AdapterRegistry2();\r
+ Collection<AdapterInstaller> installers = new ArrayList<AdapterInstaller>();\r
+ Map<AdapterInstaller, String> installerSources = new HashMap<AdapterInstaller, String>();\r
+ Collection<Exception> exceptions = new ArrayList<Exception>();\r
+\r
+ public static AdapterRegistry2 getInstance() {\r
+ return instance;\r
+ }\r
+\r
+ private void addInstaller(AdapterInstaller installer, String sourceDesc) {\r
+ installers.add(installer);\r
+ installerSources.put(installer, sourceDesc);\r
+ }\r
+\r
+ private void handleException(Exception e, String fileName) {\r
+ System.err.println("At " + fileName);\r
+ e.printStackTrace();\r
+ }\r
+\r
+ private void handleException(Exception e, AdapterInstaller installer) {\r
+ String desc = installerSources.get(installer);\r
+ if (desc != null)\r
+ System.err.println("At " + desc);\r
+ e.printStackTrace();\r
+ }\r
+\r
+ private void handleAdaptersDocument(Loader b, Document doc, String fileName) {\r
+ try {\r
+ Node node = doc.getDocumentElement();\r
+ if(node.getNodeName().equals(ADAPTERS)) {\r
+ NodeList nodeList = node.getChildNodes();\r
+ for(int i=0;i<nodeList.getLength();++i) {\r
+ Node n = nodeList.item(i);\r
+ if(n.getNodeName().equals(TARGET))\r
+ handleTarget(b, n, fileName);\r
+ else if(n.getNodeName().equals(INSTALLER))\r
+ handleInstaller(b, n, fileName);\r
+ }\r
+ }\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ private void handleTarget(Loader b, Node node, String fileName) {\r
+ try {\r
+ Class<?> interface_ =\r
+ b.loadClass(node.getAttributes().getNamedItem("interface")\r
+ .getNodeValue());\r
+ NodeList nodeList = node.getChildNodes();\r
+ for(int i=0;i<nodeList.getLength();++i) {\r
+ Node n = nodeList.item(i);\r
+ String nodeName = n.getNodeName();\r
+ if(nodeName.equals(BASE_TYPE))\r
+ handleBaseType(b, interface_, n, fileName);\r
+ else if(nodeName.equals(TYPE))\r
+ handleType(b, interface_, n, fileName);\r
+ else if(nodeName.equals(ADAPTER))\r
+ handleAdapter(b, interface_, n, fileName);\r
+ else if(nodeName.equals(RESOURCE))\r
+ handleResource(b, interface_, n, fileName);\r
+ }\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ private void handleInstaller(Loader b, Node node, String fileName) {\r
+ try {\r
+ AdapterInstaller installer =\r
+ ((Class<?>)b.loadClass(node.getAttributes().getNamedItem("class").getNodeValue()))\r
+ .asSubclass(AdapterInstaller.class).newInstance();\r
+ addInstaller(installer, fileName);\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ private <T> void handleResource(final Loader b, final Class<T> interface_, final Node node, String fileName) {\r
+ try {\r
+ NamedNodeMap attr = node.getAttributes();\r
+ final String uri = attr.getNamedItem(URI).getNodeValue();\r
+ final String className = attr.getNamedItem(CLASS).getNodeValue();\r
+ Node constructorNode = attr.getNamedItem(CONSTRUCTOR);\r
+ final String constructor = constructorNode == null ? null : constructorNode.getNodeValue();\r
+// System.out.println("AdapterRegistry2.handleResource: " + b + " " + uri + " " + interface_);\r
+ addInstaller(\r
+\r
+ new AdapterInstaller() {\r
+\r
+ @Override\r
+ public void install(ReadGraph g, AdaptionService service) throws Exception {\r
+ Class<? extends T> clazz = b.loadClass(className).asSubclass(interface_);\r
+ List<IDynamicAdapter2> parameters = readParameters(g, node, b);\r
+ IDynamicAdapter2[] parameterArray = \r
+ parameters.toArray(new IDynamicAdapter2[parameters.size()]);\r
+ Resource r = g.getResource(uri);\r
+ service.addInstanceAdapter(\r
+ r,\r
+ interface_,\r
+ constructor == null \r
+ ? new ReflectionAdapter2<T>(clazz, parameterArray)\r
+ : new StaticMethodAdapter<T>(clazz, constructor, parameterArray));\r
+ }\r
+\r
+ }, fileName);\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ private <T> void handleType(final Loader b, final Class<T> interface_, final Node node, String fileName) {\r
+ try {\r
+ final NamedNodeMap attr = node.getAttributes();\r
+ final String uri = attr.getNamedItem(URI).getNodeValue();\r
+ Node constructorNode = attr.getNamedItem(CONSTRUCTOR);\r
+ final String constructor = constructorNode == null ? null : constructorNode.getNodeValue();\r
+ //System.out.println("AdapterRegistry2.handleType: " + b + " " + uri + " " + interface_);\r
+ addInstaller(\r
+ new AdapterInstaller() {\r
+\r
+ @Override\r
+ public void install(ReadGraph g, AdaptionService service) throws Exception {\r
+ try {\r
+ Class<? extends T> clazz =\r
+ ((Class<?>)b.loadClass(attr.getNamedItem(CLASS).getNodeValue()))\r
+ .asSubclass(interface_);\r
+ List<IDynamicAdapter2> parameters = readParameters(g, node, b);\r
+ IDynamicAdapter2[] parameterArray = \r
+ parameters.toArray(new IDynamicAdapter2[parameters.size()]);\r
+ service.addAdapter(\r
+ g.getResource(uri),\r
+ interface_,\r
+ constructor == null \r
+ ? new ReflectionAdapter2<T>(clazz, parameterArray)\r
+ : new StaticMethodAdapter<T>(clazz, constructor, parameterArray));\r
+ } catch(Error t) {\r
+ System.err.println("Failed to adapt "+interface_.getName());\r
+ throw t;\r
+ } catch(RuntimeException t) {\r
+ System.err.println("Failed to adapt "+interface_.getName());\r
+ throw t;\r
+ }\r
+ }\r
+\r
+ }, fileName);\r
+ } catch (Exception e) {\r
+ e.printStackTrace();\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ private List<IDynamicAdapter2> readParameters(ReadGraph g, Node node, Loader b) throws DatabaseException, DOMException, ClassNotFoundException {\r
+ NodeList nodeList = node.getChildNodes();\r
+ ArrayList<IDynamicAdapter2> parameters = new ArrayList<IDynamicAdapter2>();\r
+ for(int i=0;i<nodeList.getLength();++i) {\r
+ Node n = nodeList.item(i);\r
+ if(n.getNodeType() == Node.ELEMENT_NODE) {\r
+ NamedNodeMap attr = n.getAttributes();\r
+ IDynamicAdapter2 da = null;\r
+ if(n.getNodeName().equals("this"))\r
+ da = new ThisResource2();\r
+ else if(n.getNodeName().equals("graph"))\r
+ da = new GraphObject2();\r
+ else if(n.getNodeName().equals("bundle")) {\r
+ String bundleId = null;\r
+ Node fc = n.getFirstChild();\r
+ if (fc != null)\r
+ bundleId = fc.getNodeValue();\r
+ if (bundleId == null) {\r
+ da = new ConstantAdapter(Bundle.class, b.getBundle());\r
+ } else {\r
+ Bundle ob = Platform.getBundle(bundleId);\r
+ if (ob != null) {\r
+ da = new ConstantAdapter(Bundle.class, ob);\r
+ } else {\r
+ throw new DOMException(DOMException.NOT_FOUND_ERR, "bundle '" + bundleId + "' not found");\r
+ }\r
+ }\r
+ } else if(n.getNodeName().equals("related"))\r
+ da = new RelatedResources2(\r
+ g.getResource(attr.getNamedItem("uri").getNodeValue()));\r
+ else if(n.getNodeName().equals("orderedSet"))\r
+ da = new OrderedSetResources2(\r
+ g.getResource(attr.getNamedItem("uri").getNodeValue()));\r
+ else if(n.getNodeName().equals("single"))\r
+ da = new SingleRelatedResource2(\r
+ g.getResource(attr.getNamedItem("uri").getNodeValue()));\r
+ else if(n.getNodeName().equals("atMostOne"))\r
+ da = new AtMostOneRelatedResource2(\r
+ g.getResource(attr.getNamedItem("uri").getNodeValue()));\r
+ else if(n.getNodeName().equals("string"))\r
+ da = new ConstantAdapter(String.class, n.getFirstChild().getNodeValue());\r
+ {\r
+ Node toNode = attr.getNamedItem("to");\r
+ if(toNode != null) {\r
+ String to = toNode.getNodeValue();\r
+ da = new AdaptingDynamicAdapter2(da, b.loadClass(to));\r
+ }\r
+ }\r
+ parameters.add(da);\r
+ }\r
+ }\r
+ return parameters;\r
+ }\r
+\r
+ private <T> void handleAdapter(final Loader b, final Class<T> interface_, Node node, String fileName) {\r
+ try {\r
+ NamedNodeMap attr = node.getAttributes();\r
+ final String uri = attr.getNamedItem(URI).getNodeValue();\r
+ final String clazz = attr.getNamedItem(ADAPTER_CLASS).getNodeValue();\r
+\r
+ Node contextNode = attr.getNamedItem(CONTEXT_CLASS);\r
+ final Class<?> contextClass = contextNode != null ? b.loadClass(contextNode.getNodeValue()) : Resource.class;\r
+ \r
+ //System.out.println("AdapterRegistry2.handleAdapter: " + b + " " + uri + " " + interface_ + ", class=" + clazz);\r
+ addInstaller(\r
+ new AdapterInstaller() {\r
+\r
+ @SuppressWarnings("unchecked")\r
+ @Override\r
+ public void install(ReadGraph g, AdaptionService service) throws Exception {\r
+ service.addAdapter(\r
+ g.getResource(uri),\r
+ interface_,\r
+ contextClass,\r
+ ((Class<?>)b.loadClass(clazz))\r
+ .asSubclass(Adapter.class).newInstance());\r
+ }\r
+\r
+ }, fileName);\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ private <T> void handleBaseType(Loader b, final Class<T> interface_, Node node, String fileName) {\r
+ try {\r
+ NamedNodeMap attr = node.getAttributes();\r
+ final String uri = attr.getNamedItem(URI).getNodeValue();\r
+ addInstaller(\r
+ new AdapterInstaller() {\r
+\r
+ @Override\r
+ public void install(ReadGraph g, AdaptionService service) throws Exception {\r
+ service.declareAdapter(\r
+ g.getResource(uri),\r
+ interface_);\r
+ }\r
+\r
+ }, fileName);\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+ }\r
+ }\r
+\r
+ public void updateAdaptionService(Session s, final AdaptionService service) throws DatabaseException {\r
+ s.syncRequest(new ReadRequest() {\r
+ @Override\r
+ public void run(ReadGraph g) {\r
+ for(AdapterInstaller t : installers) {\r
+ try {\r
+ t.install(g, service);\r
+ } catch (Exception e) {\r
+ AdapterRegistry2.this.handleException(e, t);\r
+ }\r
+ }\r
+ }\r
+ });\r
+ }\r
+\r
+ public void initialize(ClassLoader b, String schemaURL, File[] files) {\r
+\r
+ try {\r
+ \r
+ DocumentBuilderFactory factory =\r
+ DocumentBuilderFactory.newInstance();\r
+ \r
+ if(schemaURL != null) {\r
+ \r
+ factory.setValidating(true);\r
+ factory.setAttribute(\r
+ "http://java.sun.com/xml/jaxp/properties/schemaLanguage",\r
+ "http://www.w3.org/2001/XMLSchema");\r
+ factory.setAttribute(\r
+ "http://java.sun.com/xml/jaxp/properties/schemaSource", schemaURL);\r
+ \r
+ }\r
+\r
+ // TODO Listen bundles (install/uninstall)\r
+ if (exceptions.isEmpty())\r
+ for (final File f : files) {\r
+// String fileName = new Path(b.getLocation()).append(file.getPath()).toString();\r
+ try {\r
+ DocumentBuilder builder = factory.newDocumentBuilder();\r
+ builder.setErrorHandler(new ErrorHandler() {\r
+\r
+ @Override\r
+ public void error(SAXParseException exception)\r
+ throws SAXException {\r
+ // TODO Put this error somewhere\r
+ System.err.println("Parse error at " + f.getAbsolutePath() + \r
+// + b.getSymbolicName() + "/adapters.xml" +\r
+ " line " + exception.getLineNumber() +\r
+ " column " + exception.getColumnNumber() + ":");\r
+ System.err.println(exception.getMessage());\r
+ }\r
+\r
+ @Override\r
+ public void fatalError(SAXParseException exception)\r
+ throws SAXException {\r
+ error(exception);\r
+ }\r
+\r
+ @Override\r
+ public void warning(SAXParseException exception)\r
+ throws SAXException {\r
+ error(exception);\r
+ }\r
+\r
+ });\r
+ //System.out.println("bundle=" + b.getSymbolicName());\r
+ Document doc = builder.parse(f);\r
+ handleAdaptersDocument(loader(b), doc, f.getAbsolutePath());\r
+ } catch (Exception e) {\r
+ handleException(e, f.getAbsolutePath());\r
+\r
+ }\r
+ }\r
+ } catch (Exception e) {\r
+ handleException(e, "(no file name available)");\r
+ }\r
+ \r
+ }\r
+ \r
+ public void initialize(BundleContext context) {\r
+ \r
+ try {\r
+ \r
+ DocumentBuilderFactory factory =\r
+ DocumentBuilderFactory.newInstance();\r
+ factory.setValidating(true);\r
+ factory.setAttribute(\r
+ "http://java.sun.com/xml/jaxp/properties/schemaLanguage",\r
+ "http://www.w3.org/2001/XMLSchema");\r
+ factory.setAttribute(\r
+ "http://java.sun.com/xml/jaxp/properties/schemaSource",\r
+ context.getBundle().getResource("adapters.xsd").toString());\r
+\r
+ // TODO Listen bundles (install/uninstall)\r
+ if (exceptions.isEmpty())\r
+ for (final Bundle b : context.getBundles()) {\r
+ URL file = b.getEntry(ADAPTERS_FILE);\r
+ if (file != null) {\r
+ String fileName = new Path(b.getLocation()).append(file.getPath()).toString();\r
+ try {\r
+ DocumentBuilder builder = factory.newDocumentBuilder();\r
+ builder.setErrorHandler(new ErrorHandler() {\r
+\r
+ @Override\r
+ public void error(SAXParseException exception)\r
+ throws SAXException {\r
+ // TODO Put this error somewhere\r
+ System.err.println("Parse error at "\r
+ + b.getSymbolicName() + "/adapters.xml" +\r
+ " line " + exception.getLineNumber() +\r
+ " column " + exception.getColumnNumber() + ":");\r
+ System.err.println(exception.getMessage());\r
+ }\r
+\r
+ @Override\r
+ public void fatalError(SAXParseException exception)\r
+ throws SAXException {\r
+ error(exception);\r
+ }\r
+\r
+ @Override\r
+ public void warning(SAXParseException exception)\r
+ throws SAXException {\r
+ error(exception);\r
+ }\r
+\r
+ });\r
+ \r
+ //System.out.println("bundle=" + b.getSymbolicName());\r
+ String text = FileUtils.getContents(file);\r
+ text = OntologyVersions.getInstance().currentVersion(text);\r
+ StringReader reader = new StringReader( text );\r
+ InputSource inputSource = new InputSource( reader );\r
+ Document doc = builder.parse( inputSource );\r
+ reader.close(); \r
+ handleAdaptersDocument(loader(b), doc, fileName);\r
+ } catch (Exception e) {\r
+ handleException(e, fileName);\r
+\r
+ }\r
+ }\r
+ }\r
+ } catch (Exception e) {\r
+ handleException(e, "(no file name available)");\r
+ }\r
+ }\r
+\r
+ interface Loader {\r
+ Class<?> loadClass(String name) throws ClassNotFoundException ;\r
+ Bundle getBundle();\r
+ }\r
+\r
+ private Loader loader(final Bundle b) {\r
+ return new Loader() {\r
+\r
+ @Override\r
+ public Class<?> loadClass(String name) throws ClassNotFoundException {\r
+ return b.loadClass(name);\r
+ }\r
+ \r
+ @Override\r
+ public Bundle getBundle() {\r
+ return b;\r
+ }\r
+ \r
+ };\r
+ }\r
+\r
+ private Loader loader(final ClassLoader b) {\r
+ return new Loader() {\r
+\r
+ @Override\r
+ public Class<?> loadClass(String name) throws ClassNotFoundException {\r
+ return b.loadClass(name);\r
+ }\r
+\r
+ @Override\r
+ public Bundle getBundle() {\r
+ return null;\r
+ }\r
+ \r
+ };\r
+ }\r
+ \r
+}\r
Code Review / simantics / platform.git / blobdiff