| /******************************************************************************* |
| * Copyright (c) 2002, 2006 IBM Corporation 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.xml.core.internal.contentmodel.modelqueryimpl; |
| |
| import java.io.File; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.wst.sse.core.utils.StringUtils; |
| import org.eclipse.wst.xml.core.internal.Logger; |
| import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.CMDocumentManager; |
| import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.IExternalSchemaLocationProvider; |
| import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery; |
| import org.eclipse.wst.xml.core.internal.contentmodel.util.CMDocumentCache; |
| import org.eclipse.wst.xml.core.internal.contentmodel.util.NamespaceInfo; |
| import org.eclipse.wst.xml.core.internal.contentmodel.util.NamespaceTable; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| |
| /** |
| * |
| */ |
| public class CMDocumentLoader |
| { |
| private final static boolean _trace = Boolean.valueOf(Platform.getDebugOption("org.eclipse.wst.xml.core/externalSchemaLocation")).booleanValue(); //$NON-NLS-1$ |
| protected Document document; |
| protected ModelQuery modelQuery; |
| protected CMDocumentManager cmDocumentManager; |
| protected boolean isInferredGrammarEnabled = true; |
| protected CMDocumentLoadingNamespaceTable namespaceTable; |
| protected int count = 0; |
| |
| public CMDocumentLoader(Document document, ModelQuery modelQuery) |
| { |
| this(document, modelQuery.getCMDocumentManager()); |
| } |
| |
| public CMDocumentLoader(Document document, CMDocumentManager cmDocumentManager) |
| { |
| this.document = document; |
| this.cmDocumentManager = cmDocumentManager; |
| } |
| |
| public void loadCMDocuments() |
| { |
| //System.out.println("----------loadCMDocuments ------------"); |
| //long time = System.currentTimeMillis(); |
| |
| boolean walkDocument = false; |
| |
| cmDocumentManager.removeAllReferences(); |
| |
| String[] doctypeInfo = XMLAssociationProvider.getDoctypeInfo(document); |
| if (doctypeInfo != null) |
| { |
| // load the doctype if required |
| walkDocument = handleGrammar(doctypeInfo[0], doctypeInfo[1], "DTD"); //$NON-NLS-1$ |
| } |
| else |
| { |
| Element element = getRootElement(document); |
| if (element != null) |
| { |
| namespaceTable = new CMDocumentLoadingNamespaceTable(document); |
| namespaceTable.addElement(element); |
| if (namespaceTable.isNamespaceEncountered()) |
| { |
| walkDocument = true; |
| //System.out.println("isNamespaceAware"); |
| } |
| else |
| { |
| namespaceTable = null; |
| walkDocument = isInferredGrammarEnabled; |
| //System.out.println("is NOT namespaceAware"); |
| } |
| } |
| } |
| |
| if (walkDocument) |
| { |
| if (!checkExternalSchema()) |
| visitNode(document); |
| } |
| |
| //System.out.println("--- elapsed time (" + count + ") = " + (System.currentTimeMillis() - time)); |
| } |
| |
| protected boolean checkExternalSchema() { |
| boolean externalSchemaLoaded = false; |
| if (document instanceof IDOMDocument) { |
| final String baseLocation = ((IDOMDocument) document).getModel().getBaseLocation(); |
| if (baseLocation == null) |
| return false; |
| final IPath basePath = new Path(baseLocation); |
| IFile file = null; |
| if (basePath.segmentCount() > 1) { |
| file = ResourcesPlugin.getWorkspace().getRoot().getFile(basePath); |
| } |
| final URI uri = (file == null || !file.isAccessible()) ? new File(baseLocation).toURI() : file.getLocationURI(); |
| if (uri != null) { |
| IExternalSchemaLocationProvider[] providers = ExternalSchemaLocationProviderRegistry.getInstance().getProviders(); |
| for (int i = 0; i < providers.length; i++) { |
| long time = _trace ? System.currentTimeMillis(): 0; |
| final Map locations = providers[i].getExternalSchemaLocation(uri); |
| if (_trace) { |
| long diff = System.currentTimeMillis() - time; |
| if (diff > 250) |
| Logger.log(Logger.INFO, "Schema location provider took [" + diff + "ms] for URI [" + uri + "]"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (locations != null && !locations.isEmpty()) { |
| // Use the externalSchemaLocation |
| if (namespaceTable != null && namespaceTable.isNamespaceEncountered()) { |
| final String location = locations.get(IExternalSchemaLocationProvider.SCHEMA_LOCATION).toString(); |
| if (location != null) { |
| final String[] ids = StringUtils.asArray(location); |
| // namespace : location pairs |
| if (ids.length >= 2 && ids.length % 2 == 0) { |
| if (!externalSchemaLoaded) |
| cmDocumentManager.removeAllReferences(); |
| for (int j = 0; j < ids.length; j+=2) { |
| handleGrammar(ids[j], ids[j + 1], "XSD"); //$NON-NLS-1$ |
| externalSchemaLoaded = true; |
| } |
| } |
| } |
| } |
| else { // noNamespace |
| handleGrammar(uri.toString(), locations.get(IExternalSchemaLocationProvider.NO_NAMESPACE_SCHEMA_LOCATION).toString(), "XSD"); //$NON-NLS-1$ |
| externalSchemaLoaded = true; |
| break; |
| } |
| } |
| } |
| } |
| } |
| return externalSchemaLoaded; |
| } |
| |
| public boolean handleGrammar(String publicId, String systemId, String type) |
| { |
| boolean result = false; |
| |
| int status = cmDocumentManager.getCMDocumentStatus(publicId); |
| if (status == CMDocumentCache.STATUS_NOT_LOADED) |
| { |
| cmDocumentManager.addCMDocumentReference(publicId, systemId, type); |
| } |
| else if (status == CMDocumentCache.STATUS_ERROR) |
| { |
| result = true; |
| } |
| return result; |
| } |
| |
| |
| public void handleElement(Element element) |
| { |
| visitChildNodes(element); |
| } |
| |
| |
| public void handleElementNS(Element element) |
| { |
| namespaceTable.addElement(element); |
| visitChildNodes(element); |
| } |
| |
| |
| public void visitNode(Node node) |
| { |
| int nodeType = node.getNodeType(); |
| if (nodeType == Node.ELEMENT_NODE) |
| { |
| count++; |
| |
| Element element = (Element)node; |
| if (namespaceTable == null) |
| { |
| handleElement(element); |
| } |
| else |
| { |
| handleElementNS(element); |
| } |
| } |
| else if (nodeType == Node.DOCUMENT_NODE) |
| { |
| visitChildNodes(node); |
| } |
| } |
| |
| |
| protected void visitChildNodes(Node node) |
| { |
| for (Node child = node.getFirstChild(); child != null; child = child.getNextSibling()) |
| { |
| visitNode(child); |
| } |
| } |
| |
| |
| protected class CMDocumentLoadingNamespaceTable extends NamespaceTable |
| { |
| protected List newNamespaceList; |
| |
| public CMDocumentLoadingNamespaceTable(Document document) |
| { |
| super(document); |
| } |
| |
| |
| public void addElement(Element element) |
| { |
| newNamespaceList = null; |
| super.addElement(element); |
| if (newNamespaceList != null) |
| { |
| for (Iterator i = newNamespaceList.iterator(); i.hasNext(); ) |
| { |
| NamespaceInfo info = (NamespaceInfo)i.next(); |
| handleGrammar(info.uri, info.locationHint, "XSD"); //$NON-NLS-1$ |
| } |
| } |
| } |
| |
| |
| protected void internalAddNamespaceInfo(String key, NamespaceInfo info) |
| { |
| super.internalAddNamespaceInfo(key, info); |
| if (newNamespaceList == null) |
| { |
| newNamespaceList = new ArrayList(); |
| } |
| newNamespaceList.add(info); |
| } |
| } |
| |
| |
| protected Element getRootElement(Document document) |
| { |
| Element result = null; |
| NodeList nodeList = document.getChildNodes(); |
| int nodeListLength = nodeList.getLength(); |
| for (int i = 0 ; i < nodeListLength; i++) |
| { |
| Node node = nodeList.item(i); |
| if (node.getNodeType() == Node.ELEMENT_NODE) |
| { |
| result = (Element)node; |
| break; |
| } |
| } |
| return result; |
| } |
| } |
