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Improved namespace renaming for XML/XSD documents
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Fixes eclipse#366

Can rename namespace declaration and all will change, renaming element with namespace does not wipe
namespace, attribute values referencing a namespace will update if necessary

Signed-off-by: Nikolas <nikolaskomonen@gmail.com>
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@angelozerr @NikolasKomonen
angelozerr authored and NikolasKomonen committed May 29, 2019
1 parent f9d5253 commit bc45fa5
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Showing 13 changed files with 534 additions and 122 deletions.
62 changes: 62 additions & 0 deletions org.eclipse.lsp4xml/src/main/java/org/eclipse/lsp4xml/dom/DOMAttr.java
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,9 @@ public class DOMAttr extends DOMNode implements org.w3c.dom.Attr {

private boolean hasDelimiter; // has '='

public static final String XMLNS_ATTR = "xmlns";
public static final String XMLNS_NO_DEFAULT_ATTR = "xmlns:";

class AttrNameOrValue extends DOMNode {

private final DOMAttr ownerAttr;
Expand Down Expand Up @@ -100,6 +103,15 @@ public String getName() {
return name;
}

@Override
public String getLocalName() {
int colonIndex = name.indexOf(":");
if(colonIndex > 0) {
return name.substring(colonIndex + 1);
}
return name;
}

/*
* (non-Javadoc)
*
Expand Down Expand Up @@ -238,6 +250,56 @@ public void setNodeAttrValue(DOMNode nodeAttrValue) {
public boolean valueContainsOffset(int offset) {
return nodeAttrValue != null && offset >= nodeAttrValue.getStart() && offset < nodeAttrValue.getEnd();
}

/**
* Returns true if attribute name is a xmlns attribute and false otherwise.
*
* @param attributeName
* @return true if attribute name is a xmlns attribute and false otherwise.
*/
public boolean isXmlns() {
return name.startsWith(XMLNS_ATTR);
}

/**
* Returns true if attribute name is the default xmlns attribute and false
* otherwise.
*
* @param attributeName
* @return true if attribute name is the default xmlns attribute and false
* otherwise.
*/
public boolean isDefaultXmlns() {
return name.equals(XMLNS_ATTR);
}

public String extractPrefixFromXmlns() {
if (isDefaultXmlns()) {
return name.substring(XMLNS_ATTR.length(), name.length());
}
return name.substring(XMLNS_NO_DEFAULT_ATTR.length(), name.length());
}

/**
* Returns the prefix if the given URI matches this attributes value.
*
* If the URI doesnt match, null is returned.
* @param uri
* @return
*/
public String getPrefixIfMatchesURI(String uri) {
if (isXmlns()) {
if (quotelessValue != null && quotelessValue.equals(uri)) {
if (isDefaultXmlns()) {
// xmlns="http://"
return null;
}
// xmlns:xxx="http://"
return extractPrefixFromXmlns();
}
}
return null;
}

/*
* (non-Javadoc)
Expand Down
51 changes: 10 additions & 41 deletions org.eclipse.lsp4xml/src/main/java/org/eclipse/lsp4xml/dom/DOMElement.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,9 @@
*/
package org.eclipse.lsp4xml.dom;

import static org.eclipse.lsp4xml.dom.DOMAttr.XMLNS_ATTR;
import static org.eclipse.lsp4xml.dom.DOMAttr.XMLNS_NO_DEFAULT_ATTR;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
Expand All @@ -25,8 +28,7 @@
*/
public class DOMElement extends DOMNode implements org.w3c.dom.Element {

private static final String XMLNS_ATTR = "xmlns";
private static final String XMLNS_NO_DEFAULT_ATTR = "xmlns:";


String tag;
boolean selfClosed;
Expand Down Expand Up @@ -148,20 +150,15 @@ public Collection<String> getAllPrefixes() {
for (DOMAttr attr : getAttributeNodes()) {
String attributeName = attr.getName();
if (isNoDefaultXmlns(attributeName)) {
prefixes.add(extractPrefixFromXmlns(attributeName));
prefixes.add(attr.extractPrefixFromXmlns());
}
}
return prefixes;
}
return Collections.emptyList();
}

private static String extractPrefixFromXmlns(String attributeName) {
if (isDefaultXmlns(attributeName)) {
return attributeName.substring(XMLNS_ATTR.length(), attributeName.length());
}
return attributeName.substring(XMLNS_NO_DEFAULT_ATTR.length(), attributeName.length());
}


/**
* Returns the xmlns prefix from the given namespave URI and null otherwise.
Expand All @@ -175,17 +172,9 @@ public String getPrefix(String namespaceURI) {
}
if (hasAttributes()) {
for (DOMAttr attr : getAttributeNodes()) {
String attributeName = attr.getName();
if (isXmlns(attributeName)) {
String namespace = attr.getValue();
if (namespace != null && namespace.equals(namespaceURI)) {
if (isDefaultXmlns(attributeName)) {
// xmlns="http://"
return "";
}
// xmlns:xxx="http://"
return extractPrefixFromXmlns(attributeName);
}
String prefix = attr.getPrefixIfMatchesURI(namespaceURI);
if(prefix != null) {
return prefix;
}
}
}
Expand All @@ -204,27 +193,7 @@ public String getPrefix(String namespaceURI) {
return null;
}

/**
* Returns true if attribute name is a xmlns attribute and false otherwise.
*
* @param attributeName
* @return true if attribute name is a xmlns attribute and false otherwise.
*/
private static boolean isXmlns(String attributeName) {
return attributeName.startsWith(XMLNS_ATTR);
}

/**
* Returns true if attribute name is the default xmlns attribute and false
* otherwise.
*
* @param attributeName
* @return true if attribute name is the default xmlns attribute and false
* otherwise.
*/
private static boolean isDefaultXmlns(String attributeName) {
return attributeName.equals(XMLNS_ATTR);
}


/**
* Returns true if attribute name is the no default xmlns attribute and false
Expand Down
27 changes: 3 additions & 24 deletions ...lipse/lsp4xml/extensions/contentmodel/participants/ContentModelCompletionParticipant.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,6 @@
*/
package org.eclipse.lsp4xml.extensions.contentmodel.participants;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Collection;

import org.eclipse.lsp4j.CompletionItem;
Expand All @@ -33,7 +31,6 @@
import org.eclipse.lsp4xml.services.extensions.ICompletionResponse;
import org.eclipse.lsp4xml.settings.SharedSettings;
import org.eclipse.lsp4xml.uriresolver.CacheResourceDownloadingException;
import org.eclipse.lsp4xml.utils.StringUtils;

/**
* Extension to support XML completion based on content model (XML Schema
Expand Down Expand Up @@ -112,27 +109,9 @@ private void fillWithChildrenElementDeclaration(DOMElement element, Collection<C
CompletionItem item = new CompletionItem(label);
item.setFilterText(request.getFilterForStartTagName(label));
item.setKind(CompletionItemKind.Property);
StringBuilder sb = new StringBuilder();
String documentation;
String tempDoc = child.getDocumentation();
boolean tempDocHasContent = !StringUtils.isEmpty(tempDoc);
if(tempDocHasContent) {
sb.append(tempDoc);
}

if(schemaURI != null) {
if(tempDocHasContent) {
String lineSeparator = System.getProperty("line.separator");
sb.append(lineSeparator);
sb.append(lineSeparator);
}
Path schemaPath = Paths.get(schemaURI);
sb.append("Source: ");
sb.append(schemaPath.getFileName().toString());
}
documentation = sb.toString();
if (documentation != null && !documentation.isEmpty()) {
item.setDetail(documentation);
String detail = XMLGenerator.generateDocumentation(child.getDocumentation(), schemaURI);
if (detail != null) {
item.setDetail(detail);
}
String xml = generator.generate(child, prefix);
item.setTextEdit(new TextEdit(request.getReplaceRange(), xml));
Expand Down
34 changes: 34 additions & 0 deletions ...lsp4xml/src/main/java/org/eclipse/lsp4xml/extensions/contentmodel/utils/XMLGenerator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@
*/
package org.eclipse.lsp4xml.extensions.contentmodel.utils;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
Expand All @@ -19,6 +21,7 @@
import org.eclipse.lsp4xml.extensions.contentmodel.model.CMElementDeclaration;
import org.eclipse.lsp4xml.settings.SharedSettings;
import org.eclipse.lsp4xml.settings.XMLFormattingOptions;
import org.eclipse.lsp4xml.utils.StringUtils;
import org.eclipse.lsp4xml.utils.XMLBuilder;

/**
Expand Down Expand Up @@ -214,4 +217,35 @@ public static String generateAttributeValue(String defaultValue, Collection<Stri
return value.toString();
}

/**
* Returns a properly formatted documentation string with source.
*
* If there is no content then null is returned.
* @param documentation
* @param schemaURI
* @return
*/
public static String generateDocumentation(String documentation, String schemaURI) {
StringBuilder sb = new StringBuilder();
boolean tempDocHasContent = !StringUtils.isEmpty(documentation);
if(tempDocHasContent) {
sb.append(documentation);
}

if(schemaURI != null) {
if(tempDocHasContent) {
String lineSeparator = System.getProperty("line.separator");
sb.append(lineSeparator);
sb.append(lineSeparator);
}

sb.append("Source: ");

Path schemaPath = Paths.get(schemaURI);
sb.append(schemaPath.getFileName().toString());
}
String finalDocumentation = sb.toString();
return !finalDocumentation.isEmpty() ? finalDocumentation : null;
}

}
4 changes: 2 additions & 2 deletions ....lsp4xml/src/main/java/org/eclipse/lsp4xml/extensions/dtd/contentmodel/CMDTDDocument.java
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,6 @@ public class CMDTDDocument extends XMLDTDLoader implements CMDocument {
private Set<String> hierarchies;
private String uri;


public CMDTDDocument() {}

public CMDTDDocument(String uri) {
Expand All @@ -68,11 +67,12 @@ public Collection<CMElementDeclaration> getElements() {
return elements;
}

@Override

/**
* Returns the URI of this document, is none was provided this
* returns null.
*/
@Override
public String getURI() {
return uri;
}
Expand Down
3 changes: 1 addition & 2 deletions .../main/java/org/eclipse/lsp4xml/extensions/xsd/contentmodel/CMXSDContentModelProvider.java
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Original file line number Diff line number Diff line change
Expand Up @@ -73,8 +73,7 @@ public CMDocument createCMDocument(String key) {
XSModel model = getLoader().loadURI(key);
if (model != null) {
// XML Schema can be loaded
CMXSDDocument document = new CMXSDDocument(model, key);
return document;
return new CMXSDDocument(model, key);
}
return null;
}
Expand Down
3 changes: 1 addition & 2 deletions ....lsp4xml/src/main/java/org/eclipse/lsp4xml/extensions/xsd/contentmodel/CMXSDDocument.java
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Original file line number Diff line number Diff line change
Expand Up @@ -51,8 +51,7 @@ public CMXSDDocument(XSModel model) {
}

public CMXSDDocument(XSModel model, String uri) {
this.model = model;
this.elementMappings = new HashMap<>();
this(model);
this.uri = uri;
}

Expand Down
42 changes: 4 additions & 38 deletions org.eclipse.lsp4xml/src/main/java/org/eclipse/lsp4xml/services/XMLHighlighting.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,10 @@
*/
package org.eclipse.lsp4xml.services;

import static org.eclipse.lsp4xml.utils.XMLPositionUtility.covers;
import static org.eclipse.lsp4xml.utils.XMLPositionUtility.doesTagCoverPosition;
import static org.eclipse.lsp4xml.utils.XMLPositionUtility.getTagNameRange;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
Expand All @@ -24,11 +28,8 @@
import org.eclipse.lsp4xml.dom.DOMDocument;
import org.eclipse.lsp4xml.dom.DOMElement;
import org.eclipse.lsp4xml.dom.DOMNode;
import org.eclipse.lsp4xml.dom.parser.Scanner;
import org.eclipse.lsp4xml.dom.parser.TokenType;
import org.eclipse.lsp4xml.dom.parser.XMLScanner;
import org.eclipse.lsp4xml.services.extensions.XMLExtensionsRegistry;

/**
* XML highlighting support.
*
Expand Down Expand Up @@ -91,11 +92,6 @@ public List<DocumentHighlight> findDocumentHighlights(DOMDocument xmlDocument, P
return Collections.emptyList();
}

private static boolean doesTagCoverPosition(Range startTagRange, Range endTagRange, Position position) {
return startTagRange != null && covers(startTagRange, position)
|| endTagRange != null && covers(endTagRange, position);
}

private static List<DocumentHighlight> getHighlightsList(Range startTagRange, Range endTagRange) {

List<DocumentHighlight> result = new ArrayList<>(2);
Expand All @@ -108,34 +104,4 @@ private static List<DocumentHighlight> getHighlightsList(Range startTagRange, Ra
return result;
}

private static boolean isBeforeOrEqual(Position pos1, Position pos2) {
return pos1.getLine() < pos2.getLine()
|| (pos1.getLine() == pos2.getLine() && pos1.getCharacter() <= pos2.getCharacter());
}

private static boolean covers(Range range, Position position) {
return isBeforeOrEqual(range.getStart(), position) && isBeforeOrEqual(position, range.getEnd());
}

private static Range getTagNameRange(TokenType tokenType, int startOffset, DOMDocument xmlDocument) {

Scanner scanner = XMLScanner.createScanner(xmlDocument.getText(), startOffset);

TokenType token = scanner.scan();
while (token != TokenType.EOS && token != tokenType) {
token = scanner.scan();
}
if (token != TokenType.EOS) {
try {
return new Range(xmlDocument.positionAt(scanner.getTokenOffset()),
xmlDocument.positionAt(scanner.getTokenEnd()));
} catch (BadLocationException e) {
LOGGER.log(Level.SEVERE,
"While creating Range in XMLHighlighting the Scanner's Offset was a BadLocation", e);
return null;
}
}
return null;
}

}
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