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See redhat-developer/vscode-xml#395 Signed-off-by: azerr <[email protected]>
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...in/java/org/eclipse/lemminx/extensions/contentmodel/commands/AssociateGrammarCommand.java
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| /******************************************************************************* | ||
| * Copyright (c) 2021 Red Hat Inc. and others. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v20.html | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Red Hat Inc. - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.lemminx.extensions.contentmodel.commands; | ||
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| import static org.eclipse.lemminx.extensions.xsd.utils.XSDUtils.TARGET_NAMESPACE_ATTR; | ||
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| import java.net.URL; | ||
| import java.nio.file.Path; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
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| import javax.xml.parsers.SAXParser; | ||
| import javax.xml.parsers.SAXParserFactory; | ||
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| import org.eclipse.lemminx.dom.DOMDocument; | ||
| import org.eclipse.lemminx.extensions.contentmodel.participants.codeactions.NoGrammarConstraintsCodeAction; | ||
| import org.eclipse.lemminx.services.IXMLDocumentProvider; | ||
| import org.eclipse.lemminx.services.extensions.commands.AbstractDOMDocumentCommandHandler; | ||
| import org.eclipse.lemminx.services.extensions.commands.ArgumentsUtils; | ||
| import org.eclipse.lemminx.settings.SharedSettings; | ||
| import org.eclipse.lemminx.utils.FilesUtils; | ||
| import org.eclipse.lemminx.utils.StringUtils; | ||
| import org.eclipse.lsp4j.ExecuteCommandParams; | ||
| import org.eclipse.lsp4j.jsonrpc.CancelChecker; | ||
| import org.xml.sax.Attributes; | ||
| import org.xml.sax.SAXException; | ||
| import org.xml.sax.helpers.DefaultHandler; | ||
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| /** | ||
| * XML Command "xml.associate.grammar.insert" to associate a grammar to a given | ||
| * DOM document. | ||
| * | ||
| * The command parameters {@link ExecuteCommandParams} must be filled with 3 | ||
| * parameters: | ||
| * | ||
| * <ul> | ||
| * <li>document URI (String) : the DOM document file URI to bind with a grammar. | ||
| * </li> | ||
| * <li>grammar URI (String) : the XSD, DTD file URI to bind with the DOM | ||
| * document.</li> | ||
| * <li>binding type (String) : which can takes values "xsd", "dd", "xml-model" | ||
| * to know which binding type must be inserted in the DOM document.</li> | ||
| * </ul> | ||
| * | ||
| * @author Angelo ZERR | ||
| * | ||
| */ | ||
| public class AssociateGrammarCommand extends AbstractDOMDocumentCommandHandler { | ||
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| public static final String COMMAND_ID = "xml.associate.grammar.insert"; | ||
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| public AssociateGrammarCommand(IXMLDocumentProvider documentProvider) { | ||
| super(documentProvider); | ||
| } | ||
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| public enum GrammarBindingType { | ||
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| XSD("xsd"), // | ||
| DTD("dtd"), // | ||
| XML_MODEL("xml-model"); | ||
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| private String name; | ||
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| private GrammarBindingType(String name) { | ||
| this.name = name != null ? name : name(); | ||
| } | ||
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| public String getName() { | ||
| return name; | ||
| } | ||
| } | ||
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| @SuppressWarnings({ "serial" }) | ||
| public class UnknownBindingTypeException extends Exception { | ||
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| public UnknownBindingTypeException(String bindingType) { | ||
| super("Unknown binding type '" + bindingType + "'. Allowed values are " + // | ||
| Stream.of(GrammarBindingType.values()) // | ||
| .map(GrammarBindingType::getName) // | ||
| .collect(Collectors.joining(", ", "[", "]"))); | ||
| } | ||
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| } | ||
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| @Override | ||
| protected Object executeCommand(DOMDocument document, ExecuteCommandParams params, SharedSettings sharedSettings, | ||
| CancelChecker cancelChecker) throws Exception { | ||
| String documentURI = document.getDocumentURI(); | ||
| String fullPathGrammarURI = ArgumentsUtils.getArgAt(params, 1, String.class); | ||
| String bindingType = ArgumentsUtils.getArgAt(params, 2, String.class); | ||
| String grammarURI = getRelativeURI(fullPathGrammarURI, documentURI); | ||
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| if (GrammarBindingType.XSD.getName().equals(bindingType)) { | ||
| // Check if XSD to bind declares a target namespace | ||
| String targetNamespace = getTargetNamespace(fullPathGrammarURI); | ||
| if (StringUtils.isEmpty(targetNamespace)) { | ||
| // Insert inside <foo /> -> | ||
| // xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance" | ||
| // xsi:noNamespaceSchemaLocation=\"xsd/tag.xsd\" | ||
| return NoGrammarConstraintsCodeAction.createXSINoNamespaceSchemaLocationEdit(grammarURI, document); | ||
| } | ||
| // Insert inside <foo /> -> | ||
| // xmlns="team_namespace" | ||
| // xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| // xsi:schemaLocation="team_namespace xsd/team.xsd" | ||
| return NoGrammarConstraintsCodeAction.createXSISchemaLocationEdit(grammarURI, targetNamespace, document); | ||
| } else if (GrammarBindingType.DTD.getName().equals(bindingType)) { | ||
| // Insert before <foo /> -> <!DOCTYPE foo SYSTEM "dtd/tag.dtd"> | ||
| return NoGrammarConstraintsCodeAction.createDocTypeEdit(grammarURI, document, sharedSettings); | ||
| } else if (GrammarBindingType.XML_MODEL.getName().equals(bindingType)) { | ||
| // Insert before <foo /> -> <?xml-model href=\"dtd/tag.dtd\"?> | ||
| return NoGrammarConstraintsCodeAction.createXmlModelEdit(grammarURI, document, sharedSettings); | ||
| } | ||
| throw new UnknownBindingTypeException(bindingType); | ||
| } | ||
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| private static String getRelativeURI(String fullPathGrammarURI, String documentURI) { | ||
| try { | ||
| Path grammarPath = FilesUtils.getPath(fullPathGrammarURI); | ||
| Path documentPath = FilesUtils.getPath(documentURI); | ||
| Path relativePath = documentPath.getParent().relativize(grammarPath); | ||
| return relativePath.toString().replaceAll("\\\\", "/"); | ||
| } catch (Exception e) { | ||
| return fullPathGrammarURI; | ||
| } | ||
| } | ||
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| private static String getTargetNamespace(String xsdURI) { | ||
| TargetNamespaceHandler handler = new TargetNamespaceHandler(); | ||
| try { | ||
| SAXParserFactory factory = SAXParserFactory.newInstance(); | ||
| SAXParser saxParser = factory.newSAXParser(); | ||
| saxParser.parse(new URL(xsdURI).openStream(), handler); | ||
| } catch (Exception e) { | ||
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| } | ||
| return handler.getTargetNamespace(); | ||
| } | ||
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| /** | ||
| * SAX handler which extract the targetNamespace attribute from the xs:schema | ||
| * root tag element and null otherwise. | ||
| * | ||
| */ | ||
| private static class TargetNamespaceHandler extends DefaultHandler { | ||
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| private String targetNamespace; | ||
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| @Override | ||
| public void startElement(String uri, String localName, String qName, Attributes attributes) | ||
| throws SAXException { | ||
| super.startElement(uri, localName, qName, attributes); | ||
| this.targetNamespace = attributes.getValue(TARGET_NAMESPACE_ATTR); | ||
| throw new SAXException(); | ||
| } | ||
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| public String getTargetNamespace() { | ||
| return targetNamespace; | ||
| } | ||
| } | ||
|
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| } |
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