WIP Saxon 10, 11, 12 support #8

.editorconfig

@@ -8,6 +8,10 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
+# note that Saxon license should not be added to git but you may need it locally for testing
+[saxon-license.lic]
+charset = latin1
+
 [*.{yml,yaml}]
 indent_size = 2
 

.gitignore

@@ -13,4 +13,7 @@ build/
 *.iml
 
 # Ignore the output of the Ant build
-barcode4j/dist/
+barcode4j/dist/
+
+# If a Saxon license is used for testing make sure it's not added
+saxon-license.lic

barcode4j-saxon/pom.xml

@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <groupId>com.singingbush</groupId>
+        <artifactId>barcode4j-parent</artifactId>
+        <version>2.3.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>barcode4j-saxon</artifactId>
+    <name>Barcode4J Saxon (PE &amp; EE 10 and above)</name>
+    <description>Support for Saxon PE and EE (should work with Saxon 10.6.* to 12.*)</description>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+
+        <!-- Saxon EE could be pulled from the maven.saxonica.com repo -->
+        <!-- See: https://maven.saxonica.com/maven/com/saxonica/Saxon-EE/index.html -->
+        <!-- Once EE is working then it should be good for version 10.* to 12.* -->
+<!--        <saxon.version>10.2</saxon.version>-->
+        <saxon.version>10.6</saxon.version>
+<!--        <saxon.version>10.9</saxon.version>-->
+<!--        <saxon.version>11.1.1</saxon.version>-->
+<!--        <saxon.version>11.6</saxon.version>-->
+<!--        <saxon.version>12.5</saxon.version>-->
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.singingbush</groupId>
+            <artifactId>barcode4j</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.saxonica</groupId>
+            <artifactId>Saxon-EE</artifactId>
+            <version>${saxon.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <configuration>
+                    <!-- don't publish barcode4j-saxon until it's confirmed working -->
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>saxonica</id>
+            <name>Saxonica</name>
+            <url>https://dev.saxonica.com/maven/</url>
+        </repository>
+    </repositories>
+</project>

barcode4j-saxon/src/main/java/org/krysalis/barcode4j/saxon/BarcodeExtensionElementFactory.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2003-2012 Jeremias Maerki.
+ * Copyright 2020-2024 Samael Bate (singingbush)
+ *
+ * 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
+ *
+ *      http://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.krysalis.barcode4j.saxon;
+
+import com.saxonica.xsltextn.ExtensionElementFactory;
+import net.sf.saxon.style.StyleElement;
+
+/**
+ * This class represents the element factory for the barcode extension for Saxon.
+ * <p>
+ * Later releases of Saxon are split into 3 versions:
+ * </p>
+ * <ul>
+ *   <li>Saxon-HE (Home Edition) available on maven central</li>
+ *   <li>Saxon-PE (Professional Edition) available from Saxonica maven repo &amp; requires license</li>
+ *   <li>Saxon-EE (Enterprise Edition) available from Saxonica maven repo &amp; requires license</li>
+ * </ul>
+ * <p>
+ * Saxonica only provide support for element extensibility in the EE and PE releases.
+ * From version 10 onward, instead of implementing "net.sf.saxon.style.ExtensionElementFactory"
+ * use "com.saxonica.xsltextn.ExtensionElementFactory"
+ * </p>
+ * @author Jeremias Maerki &amp; Samael Bate (singingbush)
+ * @see com.saxonica.xsltextn.ExtensionElementFactory
+ */
+public class BarcodeExtensionElementFactory implements ExtensionElementFactory {
+
+    /**
+     * @see com.saxonica.xsltextn.ExtensionElementFactory#getExtensionClass(java.lang.String)
+     */
+    @Override
+    public Class<? extends StyleElement> getExtensionClass(String localName) {
+        return localName.equals("barcode") ? BarcodeStyleElement.class : BarcodeNonRootStyleElement.class;
+    }
+
+}

barcode4j-saxon/src/main/java/org/krysalis/barcode4j/saxon/BarcodeNonRootStyleElement.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2003-2012 Jeremias Maerki.
+ * Copyright 2020-2024 Samael Bate (singingbush)
+ *
+ * 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
+ *
+ *      http://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.krysalis.barcode4j.saxon;
+
+import net.sf.saxon.expr.Expression;
+import net.sf.saxon.style.Compilation;
+import net.sf.saxon.style.ComponentDeclaration;
+import net.sf.saxon.style.StyleElement;
+import net.sf.saxon.trans.XPathException;
+
+/**
+ * Non-root barcode elements.
+ *
+ * @author Jeremias Maerki & Samael Bate (singingbush)
+ */
+public class BarcodeNonRootStyleElement extends StyleElement {
+
+    /**
+     * @see StyleElement#prepareAttributes()
+     */
+    @Override
+    public void prepareAttributes() {
+        //nop
+    }
+
+    @Override
+    public Expression compile(Compilation compilation, ComponentDeclaration decl) throws XPathException {
+        return null;
+    }
+
+    /*
+     * @see net.sf.saxon.style.StyleElement#compile(net.sf.saxon.expr.instruct.Executable)
+     */
+//    @Override
+//    public Expression compile(Executable exec) throws XPathException {
+//        return null;
+//    }
+
+}