HBX-2869: Create a GenerateHBM Mojo in the Maven plugin - Add the Mojo

Signed-off-by: Koen Aers <[email protected]>

maven/src/main/java/org/hibernate/tool/maven/GenerateHbmMojo.java

@@ -0,0 +1,66 @@
+/*
+ * Hibernate Tools, Tooling for your Hibernate Projects
+ * 
+ * Copyright 2016-2020 Red Hat, Inc.
+ *
+ * Licensed under the GNU Lesser General Public License (LGPL), 
+ * version 2.1 or later (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may read the licence in the 'lgpl.txt' file in the root folder of 
+ * project or obtain a copy at
+ *
+ *     http://www.gnu.org/licenses/lgpl-2.1.html
+ *
+ * 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.hibernate.tool.maven;
+
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.hibernate.tool.api.export.Exporter;
+import org.hibernate.tool.api.export.ExporterConstants;
+import org.hibernate.tool.api.export.ExporterFactory;
+import org.hibernate.tool.api.export.ExporterType;
+import org.hibernate.tool.api.metadata.MetadataDescriptor;
+
+import java.io.File;
+
+import static org.apache.maven.plugins.annotations.LifecyclePhase.GENERATE_SOURCES;
+
+/**
+ * Mojo to generate hbm.xml files from an existing database.
+ * <p>
+ * See: https://docs.jboss.org/tools/latest/en/hibernatetools/html_single/#d0e4821
+ */
+@Mojo(name = "generateHbm", defaultPhase = GENERATE_SOURCES)
+public class GenerateHbmMojo extends AbstractGenerationMojo {
+
+    /** The directory into which the DAOs will be generated. */
+    @Parameter(defaultValue = "${project.basedir}/src/main/resources")
+    private File outputDirectory;
+
+    @Parameter
+    private String templatePath;
+
+    protected void executeExporter(MetadataDescriptor metadataDescriptor) {
+    	try {
+	        Exporter hbmExporter = ExporterFactory.createExporter(ExporterType.HBM);
+	        hbmExporter.getProperties().put(ExporterConstants.METADATA_DESCRIPTOR, metadataDescriptor);
+	        hbmExporter.getProperties().put(ExporterConstants.DESTINATION_FOLDER, outputDirectory);
+	        if (templatePath != null) {
+	            getLog().info("Setting template path to: " + templatePath);
+	            hbmExporter.getProperties().put(ExporterConstants.TEMPLATE_PATH, new String[] {templatePath});
+	        }
+	        getLog().info("Starting HBM export to directory: " + outputDirectory + "...");
+	        hbmExporter.start();
+    	} catch (Exception e) {
+    		e.printStackTrace();
+    	}
+    }
+
+
+}