org.openrewrite.xml.ChangeNamespaceValue Maven / Gradle / Ivy
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/*
* Copyright 2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openrewrite.xml;
import lombok.EqualsAndHashCode;
import lombok.Value;
import org.openrewrite.*;
import org.openrewrite.internal.ListUtils;
import org.openrewrite.internal.StringUtils;
import org.openrewrite.internal.lang.Nullable;
import org.openrewrite.marker.Markers;
import org.openrewrite.xml.trait.Namespaced;
import org.openrewrite.xml.tree.Xml;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import static org.openrewrite.Tree.randomId;
@Value
@EqualsAndHashCode(callSuper = false)
public class ChangeNamespaceValue extends Recipe {
private static final String XMLNS_PREFIX = "xmlns";
private static final String VERSION_PREFIX = "version";
private static final String SCHEMA_LOCATION_MATCH_PATTERN = "(?m)(.*)(%s)(\\s+)(.*)";
private static final String SCHEMA_LOCATION_REPLACEMENT_PATTERN = "$1%s$3%s";
@Override
public String getDisplayName() {
return "Change XML attribute of a specific resource version";
}
@Override
public String getDescription() {
return "Alters XML Attribute value within specified element of a specific resource versions.";
}
@Nullable
@Option(displayName = "Element name",
description = "The name of the element whose attribute's value is to be changed. Interpreted as an XPath Expression.",
example = "property",
required = false)
String elementName;
@Nullable
@Option(displayName = "Old value",
description = "Only change the property value if it matches the configured `oldValue`.",
example = "newfoo.bar.attribute.value.string",
required = false)
String oldValue;
@Option(displayName = "New value",
description = "The new value to be used for the namespace.",
example = "newfoo.bar.attribute.value.string")
String newValue;
@Nullable
@Option(displayName = "Resource version",
description = "The version of resource to change",
example = "1.1",
required = false)
String versionMatcher;
@Nullable
@Option(displayName = "Search all namespaces",
description = "Specify whether evaluate all namespaces. Defaults to true",
example = "true",
required = false)
Boolean searchAllNamespaces;
@Nullable
@Option(displayName = "New Resource version",
description = "The new version of the resource",
example = "2.0")
String newVersion;
@Option(displayName = "Schema location",
description = "The new value to be used for the namespace schema location.",
example = "newfoo.bar.attribute.value.string",
required = false)
@Nullable
String newSchemaLocation;
public static final String XML_SCHEMA_INSTANCE_PREFIX = "xsi";
public static final String XML_SCHEMA_INSTANCE_URI = "http://www.w3.org/2001/XMLSchema-instance";
@Override
public TreeVisitor getVisitor() {
XPathMatcher elementNameMatcher = elementName != null ? new XPathMatcher(elementName) : null;
return new XmlIsoVisitor() {
@Override
public Xml.Document visitDocument(Xml.Document document, ExecutionContext ctx) {
Xml.Document d = super.visitDocument(document, ctx);
if (d != document) {
d = d.withRoot(addOrUpdateSchemaLocation(d.getRoot()));
}
return d;
}
@Override
public Xml.Tag visitTag(Xml.Tag tag, ExecutionContext ctx) {
Xml.Tag t = super.visitTag(tag, ctx);
if (matchesElementName(getCursor()) && matchesVersion(t)) {
t = t.withAttributes(ListUtils.map(t.getAttributes(), this::maybeReplaceNamespaceAttribute));
t = t.withAttributes(ListUtils.map(t.getAttributes(), this::maybeReplaceVersionAttribute));
}
return t;
}
private boolean matchesElementName(Cursor cursor) {
return elementNameMatcher == null || elementNameMatcher.matches(cursor);
}
private boolean matchesVersion(Xml.Tag tag) {
if (versionMatcher == null) {
return true;
}
for (Xml.Attribute attribute : tag.getAttributes()) {
if (isVersionAttribute(attribute) && isVersionMatch(attribute)) {
return true;
}
}
return false;
}
private Xml.Attribute maybeReplaceNamespaceAttribute(Xml.Attribute attribute) {
if (isXmlnsAttribute(attribute) && isOldValue(attribute)) {
return attribute.withValue(
new Xml.Attribute.Value(attribute.getId(),
"",
attribute.getMarkers(),
attribute.getValue().getQuote(),
newValue));
}
return attribute;
}
private Xml.Attribute maybeReplaceVersionAttribute(Xml.Attribute attribute) {
if (isVersionAttribute(attribute) && newVersion != null) {
return attribute.withValue(
new Xml.Attribute.Value(attribute.getId(),
"",
attribute.getMarkers(),
attribute.getValue().getQuote(),
newVersion));
}
return attribute;
}
private boolean isXmlnsAttribute(Xml.Attribute attribute) {
boolean searchAll = searchAllNamespaces == null || Boolean.TRUE.equals(searchAllNamespaces);
return searchAll && attribute.getKeyAsString().startsWith(XMLNS_PREFIX) ||
!searchAll && attribute.getKeyAsString().equals(XMLNS_PREFIX);
}
private boolean isVersionAttribute(Xml.Attribute attribute) {
return attribute.getKeyAsString().startsWith(VERSION_PREFIX);
}
private boolean isOldValue(Xml.Attribute attribute) {
return oldValue == null || attribute.getValueAsString().equals(oldValue);
}
private boolean isVersionMatch(Xml.Attribute attribute) {
if (versionMatcher == null) {
return true;
}
String[] versions = versionMatcher.split(",");
double dversion = Double.parseDouble(attribute.getValueAsString());
for (String splitVersion : versions) {
boolean checkGreaterThan = false;
double dversionExpected;
if (splitVersion.endsWith("+")) {
splitVersion = splitVersion.substring(0, splitVersion.length() - 1);
checkGreaterThan = true;
}
try {
dversionExpected = Double.parseDouble(splitVersion);
} catch (NumberFormatException e) {
return false;
}
if (!checkGreaterThan && dversionExpected == dversion || checkGreaterThan && dversionExpected <= dversion) {
return true;
}
}
return false;
}
private Xml.Tag addOrUpdateSchemaLocation(Xml.Tag root) {
if (StringUtils.isBlank(newSchemaLocation)) {
return root;
}
Xml.Tag newRoot = maybeAddNamespace(root);
Namespaced n = new Namespaced(new Cursor(null, newRoot));
Optional maybeSchemaLocation = maybeGetSchemaLocation(n);
if (maybeSchemaLocation.isPresent() && oldValue != null) {
newRoot = updateSchemaLocation(newRoot, maybeSchemaLocation.get());
} else if (!maybeSchemaLocation.isPresent()) {
newRoot = addSchemaLocation(newRoot);
}
return newRoot;
}
private Optional maybeGetSchemaLocation(Namespaced n) {
Map namespaces = n.getNamespaces();
for (Xml.Attribute attribute : n.getAttributes()) {
String attributeNamespace = namespaces.get(Namespaced.extractNamespacePrefix(attribute.getKeyAsString()));
if(XML_SCHEMA_INSTANCE_URI.equals(attributeNamespace)
&& attribute.getKeyAsString().endsWith("schemaLocation")) {
return Optional.of(attribute);
}
}
return Optional.empty();
}
private Xml.Tag maybeAddNamespace(Xml.Tag root) {
Namespaced n = new Namespaced(new Cursor(null, root));
Map namespaces = n.getNamespaces();
if (namespaces.containsValue(newValue) && !namespaces.containsValue(XML_SCHEMA_INSTANCE_URI)) {
Map newNamespaces = new LinkedHashMap<>(namespaces);
newNamespaces.put(XML_SCHEMA_INSTANCE_PREFIX, XML_SCHEMA_INSTANCE_URI);
root = withNamespaces(root, newNamespaces);
}
return root;
}
public Xml.Tag withNamespaces(Xml.Tag tag, Map namespaces) {
List attributes = tag.getAttributes();
if (attributes.isEmpty()) {
for (Map.Entry ns : namespaces.entrySet()) {
String key = Namespaced.getAttributeNameForPrefix(ns.getKey());
attributes = ListUtils.concat(attributes, new Xml.Attribute(
randomId(),
"",
Markers.EMPTY,
new Xml.Ident(
randomId(),
"",
Markers.EMPTY,
key
),
"",
new Xml.Attribute.Value(
randomId(),
"",
Markers.EMPTY,
Xml.Attribute.Value.Quote.Double, ns.getValue()
)
));
}
} else {
Map attributeByKey = attributes.stream()
.collect(Collectors.toMap(
Xml.Attribute::getKeyAsString,
a -> a
));
for (Map.Entry ns : namespaces.entrySet()) {
String key = Namespaced.getAttributeNameForPrefix(ns.getKey());
if (attributeByKey.containsKey(key)) {
Xml.Attribute attribute = attributeByKey.get(key);
if (!ns.getValue().equals(attribute.getValueAsString())) {
ListUtils.map(attributes, a -> a.getKeyAsString().equals(key)
? attribute.withValue(new Xml.Attribute.Value(randomId(), "", Markers.EMPTY, Xml.Attribute.Value.Quote.Double, ns.getValue()))
: a
);
}
} else {
attributes = ListUtils.concat(attributes, new Xml.Attribute(
randomId(),
" ",
Markers.EMPTY,
new Xml.Ident(
randomId(),
"",
Markers.EMPTY,
key
),
"",
new Xml.Attribute.Value(
randomId(),
"",
Markers.EMPTY,
Xml.Attribute.Value.Quote.Double, ns.getValue()
)
));
}
}
}
return tag.withAttributes(attributes);
}
private Xml.Tag updateSchemaLocation(Xml.Tag newRoot, Xml.Attribute attribute) {
if(oldValue == null) {
return newRoot;
}
String oldSchemaLocation = attribute.getValueAsString();
Matcher pattern = Pattern.compile(String.format(SCHEMA_LOCATION_MATCH_PATTERN, Pattern.quote(oldValue)))
.matcher(oldSchemaLocation);
if (pattern.find()) {
String newSchemaLocationValue = pattern.replaceFirst(
String.format(SCHEMA_LOCATION_REPLACEMENT_PATTERN, newValue, newSchemaLocation)
);
Xml.Attribute newAttribute = attribute.withValue(attribute.getValue().withValue(newSchemaLocationValue));
newRoot = newRoot.withAttributes(ListUtils.map(newRoot.getAttributes(), a -> a == attribute ? newAttribute : a));
}
return newRoot;
}
private Xml.Tag addSchemaLocation(Xml.Tag newRoot) {
return newRoot.withAttributes(
ListUtils.concat(
newRoot.getAttributes(),
new Xml.Attribute(
randomId(),
" ",
Markers.EMPTY,
new Xml.Ident(
randomId(),
"",
Markers.EMPTY,
String.format("%s:schemaLocation", XML_SCHEMA_INSTANCE_PREFIX)
),
"",
new Xml.Attribute.Value(
randomId(),
"",
Markers.EMPTY,
Xml.Attribute.Value.Quote.Double,
String.format("%s %s", newValue, newSchemaLocation)
)
)
)
);
}
};
}
}