Issue #402: Provide bnd plugin to generate package imports based on imports in UIMA descriptors

.gitignore

@@ -12,3 +12,4 @@ issuesFixed
 .idea
 *.iml
 .tycho-consumer-pom.xml
+dependency-reduced-pom.xml

PearPackagingMavenPlugin/pom.xml

@@ -31,7 +31,7 @@
 
   <artifactId>PearPackagingMavenPlugin</artifactId>
   <packaging>maven-plugin</packaging>
-  <name>Apache UIMA Maven: ${project.artifactId}</name>
+  <name>Apache UIMA Tools: ${project.artifactId}</name>
   <description>This is a maven plugin that produces a pear artifact.</description>
   <url>${uimaWebsiteUrl}</url>
 

aggregate-uimaj/pom.xml

@@ -49,6 +49,7 @@
     <module>../PearPackagingMavenPlugin</module>
     <module>../jcasgen-maven-plugin</module>
     <module>../uimaj-v3migration-jcas</module>
+    <module>../uima-bnd-plugin</module>
 
     <module>../uimafit-core</module>
     <module>../uimafit-junit</module>

jcasgen-maven-plugin/pom.xml

@@ -32,7 +32,7 @@
   <artifactId>jcasgen-maven-plugin</artifactId>
   <packaging>maven-plugin</packaging>
 
-  <name>Apache UIMA Maven: ${project.artifactId}</name>
+  <name>Apache UIMA Tools: ${project.artifactId}</name>
   <description>A Maven Plugin for using JCasGen to generate Java classes from
     XML type system descriptions</description>
 

pom.xml

@@ -315,6 +315,7 @@
                   <exclude>jcasgen-maven-plugin/**</exclude>
                   <exclude>uimaj-adapter-*/**</exclude>
                   <exclude>uimaj-bom/**</exclude>
+                  <exclude>uima-bnd-plugin/**</exclude>
                   <exclude>uimaj-component-test-util/**</exclude>
                   <exclude>uimaj-core/**</exclude>
                   <exclude>uimaj-cpe/**</exclude>

uima-bnd-plugin/pom.xml

@@ -0,0 +1,97 @@
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements. See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership. The ASF licenses this file
+    to you 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.
+-->
+<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/maven-v4_0_0.xsd">
+
+	<modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.apache.uima</groupId>
+    <artifactId>uimaj-parent</artifactId>
+    <version>3.6.0-SNAPSHOT</version>
+    <relativePath>../uimaj-parent/pom.xml</relativePath>
+  </parent>
+
+	<artifactId>uima-bnd-plugin</artifactId>
+
+	<name>Apache UIMA Tools: UIMA Plugin for BND</name>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.apache.uima</groupId>
+			<artifactId>uimaj-core</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+
+		<!-- 
+			bndlib is provided at runtime (it neither needs to be considered by the
+			maven-shade-plugin nor as transitive dependency by Maven)
+		-->
+		<dependency>
+			<groupId>biz.aQute.bnd</groupId>
+			<artifactId>biz.aQute.bndlib</artifactId>
+			<scope>provided</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<!-- Use a shade plugin in order to append META-INF/service SPI resources into target artifact -->
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+				<executions>
+					<execution>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+						<configuration>
+							<transformers>
+								<transformer
+									implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
+							</transformers>
+							<!-- exclude provided dependencies -->
+							<artifactSet>
+								<excludes>
+									<!-- Don't include anything from bndlib (as this is always
+									part of the classpath) -->
+									<exclude>biz.aQute.bnd:bndlib</exclude>
+								</excludes>
+							</artifactSet>
+							<filters>
+								<filter>
+									<artifact>org.osgi</artifact>
+									<!-- exclude everything which is already included in bndlib -->
+									<excludes>
+										<exclude>org/osgi/resource</exclude>
+										<exclude>org/osgi/service/component/annotations</exclude>
+										<exclude>org/osgi/service/metatype/annotations</exclude>
+										<exclude>org/osgi/service/repository</exclude>
+									</excludes>
+								</filter>
+							</filters>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

uima-bnd-plugin/src/main/java/org/apache/uima/tools/bnd/UimaBndPlugin.java

@@ -0,0 +1,197 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.uima.tools.bnd;
+
+import static java.util.Collections.emptyList;
+
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import org.apache.uima.UIMAFramework;
+import org.apache.uima.analysis_engine.AnalysisEngineDescription;
+import org.apache.uima.resource.metadata.FsIndexCollection;
+import org.apache.uima.resource.metadata.Import;
+import org.apache.uima.resource.metadata.TypePriorities;
+import org.apache.uima.resource.metadata.TypeSystemDescription;
+import org.apache.uima.util.InvalidXMLException;
+import org.apache.uima.util.XMLInputSource;
+import org.apache.uima.util.XMLParser;
+import org.apache.uima.util.XMLizable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import aQute.bnd.annotation.plugin.BndPlugin;
+import aQute.bnd.header.Attrs;
+import aQute.bnd.osgi.Analyzer;
+import aQute.bnd.osgi.Resource;
+import aQute.bnd.service.AnalyzerPlugin;
+
+@BndPlugin(name = "UIMA")
+public class UimaBndPlugin
+    implements AnalyzerPlugin
+{
+
+    private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+
+    private static final Pattern XML_FILE = Pattern.compile(".*\\.xml");
+    private static final Pattern QN = Pattern
+            .compile("[_A-Za-z$][_A-Za-z0-9$]*(\\.[_A-Za-z$][_A-Za-z0-9$]*)*");
+
+    private final static XMLParser PARSER = UIMAFramework.getXMLParser();
+
+    @Override
+    public boolean analyzeJar(Analyzer analyzer) throws Exception
+    {
+        var jar = analyzer.getJar();
+        var resources = jar.getResources();
+
+        var importsProcessed = 0;
+        if (resources != null) {
+            for (var entry : resources.entrySet()) {
+                var path = entry.getKey();
+                var resource = entry.getValue();
+
+                try {
+                    if (XML_FILE.matcher(path).matches()) {
+                        importsProcessed += analyzeXmlFile(analyzer, path, resource);
+                    }
+                }
+                catch (Exception e) {
+                    analyzer.error("Unexpected exception in processing resource (%s): %s", path, e);
+                }
+            }
+        }
+
+        LOG.info("UIMA bnd plugin processed {} imports", importsProcessed);
+
+        return false;
+    }
+
+    private int analyzeXmlFile(Analyzer analyzer, String path, Resource resource) throws Exception
+    {
+        var desc = readUimaDescriptor(resource);
+        if (desc == null) {
+            return 0;
+        }
+
+        LOG.debug("Found {}: {}", desc.getClass().getSimpleName(), path);
+        var imports = getImportsFromDescriptor(desc);
+
+        var importsProcessed = 0;
+        for (var imp : imports) {
+            if (imp.getName() != null) {
+                handleImportByName(analyzer, path, imp);
+                importsProcessed++;
+                continue;
+            }
+
+            if (imp.getLocation() != null) {
+                handleImportByLocation(imp);
+                continue;
+            }
+
+            LOG.warn(
+                    "Found UIMA type system import without name and location - ignoring, please fix your type system description");
+        }
+
+        return importsProcessed;
+    }
+
+    private void handleImportByLocation(Import imp)
+    {
+        LOG.warn(
+                "Found UIMA type system import by location: {} - ignoring, please only use import-by-name",
+                imp.getLocation());
+    }
+
+    private void handleImportByName(Analyzer analyzer, String path, Import imp)
+    {
+        var tsdPackage = imp.getName();
+        int lastSeparatorPosition = tsdPackage.lastIndexOf('.');
+        if (lastSeparatorPosition >= 0) {
+            // Cut the name of the XML file and keep only the package
+            tsdPackage = tsdPackage.substring(0, lastSeparatorPosition);
+        }
+
+        LOG.debug("Found UIMA type system import by name: {}", tsdPackage);
+
+        var pack = analyzer.getPackageRef(tsdPackage);
+        if (!QN.matcher(pack.getFQN()).matches()) {
+            analyzer.warning("Type system import does not seem to refer to a package (%s): %s",
+                    path, pack);
+        }
+
+        if (!analyzer.getReferred().containsKey(pack)) {
+            var attrs = new Attrs();
+            analyzer.getReferred().put(pack, attrs);
+        }
+    }
+
+    private List<Import> getImportsFromDescriptor(XMLizable desc)
+    {
+        if (desc instanceof TypeSystemDescription tsd) {
+            return asList(tsd.getImports());
+        }
+
+        if (desc instanceof TypePriorities prio) {
+            return asList(prio.getImports());
+        }
+
+        if (desc instanceof FsIndexCollection idxc) {
+            return asList(idxc.getImports());
+        }
+
+        if (desc instanceof AnalysisEngineDescription aed) {
+            var imports = new ArrayList<Import>();
+            imports.addAll(
+                    getImportsFromDescriptor(aed.getAnalysisEngineMetaData().getTypeSystem()));
+            imports.addAll(
+                    getImportsFromDescriptor(aed.getAnalysisEngineMetaData().getTypePriorities()));
+            imports.addAll(getImportsFromDescriptor(
+                    aed.getAnalysisEngineMetaData().getFsIndexCollection()));
+            return imports;
+        }
+
+        return emptyList();
+    }
+
+    private XMLizable readUimaDescriptor(Resource resource) throws Exception
+    {
+        try (var in = resource.openInputStream()) {
+            return PARSER.parse(new XMLInputSource(in));
+        }
+        catch (InvalidXMLException e) {
+            // Probably not a type system description - ignore
+        }
+
+        return null;
+    }
+
+    private static <T> List<T> asList(T[] aList)
+    {
+        if (aList == null) {
+            return emptyList();
+        }
+
+        return Arrays.asList(aList);
+    }
+}

uimaj-bom/pom.xml

@@ -20,18 +20,12 @@
 <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/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <parent>
-    <groupId>org.apache.uima</groupId>
-    <artifactId>parent-pom</artifactId>
-    <relativePath />
-    <version>18-SNAPSHOT</version>
-  </parent>
-
+  <groupId>org.apache.uima</groupId>
   <artifactId>uimaj-bom</artifactId>
   <version>3.6.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
-  <name>Apache UIMA Base: ${project.artifactId}</name>
+  <name>Apache UIMA - BOM</name>
 
   <dependencyManagement>
     <dependencies>

uimaj-documentation/src/docs/asciidoc/tools.adoc

@@ -37,6 +37,8 @@ include::tools/tools.caseditor.adoc[leveloffset=+1]
 
 include::tools/tools.jcasgen.adoc[leveloffset=+1]
 
+include::tools/tools.bnd.adoc[leveloffset=+1]
+
 include::tools/tools.pear.packager.adoc[leveloffset=+1]
 
 include::tools/tools.pear.packager.maven.adoc[leveloffset=+1]