feat: add binding to service provider for use in Groovy script

Add an additional binding for the Service Provider to Groovy scripts.

ING-4265

common/plugins/eu.esdihumboldt.hale.common.core/plugin.xml

@@ -225,4 +225,11 @@
             implementation="eu.esdihumboldt.hale.common.core.io.internal.AsValueMetaClass">
       </metaClass>
    </extension>
+   <extension
+         point="eu.esdihumboldt.util.groovy.sandbox">
+      <allow
+            allowAll="false"
+            class="eu.esdihumboldt.hale.common.core.service.DelegateServiceProvider">
+      </allow>
+   </extension>
 </plugin>

common/plugins/eu.esdihumboldt.hale.common.core/src/eu/esdihumboldt/hale/common/core/service/DelegateServiceProvider.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2024 wetransform GmbH
+ * 
+ * All rights reserved. This program and the accompanying materials are made
+ * available under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
+ * 
+ * Contributors:
+ *     wetransform GmbH <http://www.wetransform.to>
+ */
+
+package eu.esdihumboldt.hale.common.core.service;
+
+/**
+ * A DelegateServiceProvider delegates service requests to an underlying
+ * ServiceProvider. It implements the ServiceProvider interface and forwards
+ * getService calls to the specified underlying ServiceProvider.
+ * 
+ * @author EmanuelaEpure
+ */
+public class DelegateServiceProvider implements ServiceProvider {
+
+	private final ServiceProvider serviceProvider;
+
+	/**
+	 * Constructs a new DelegateServiceProvider with the specified
+	 * ServiceProvider.
+	 * 
+	 * @param serviceProvider the underlying ServiceProvider to delegate to
+	 */
+	public DelegateServiceProvider(ServiceProvider serviceProvider) {
+		this.serviceProvider = serviceProvider;
+	}
+
+	@Override
+	public <T> T getService(Class<T> serviceInterface) {
+		return serviceProvider.getService(serviceInterface);
+	}
+
+}

cst/plugins/eu.esdihumboldt.cst.functions.groovy/src/eu/esdihumboldt/cst/functions/groovy/GroovyConstants.java

@@ -69,6 +69,11 @@ public interface GroovyConstants {
 	 */
 	public static final String BINDING_INSTANCE_INDEX = "_instanceIndex";
 
+	/**
+	 * Name of the service provider in the binding.
+	 */
+	public static final String BINDING_SERVICE_PROVIDER = "_serviceProvider";
+
 	/**
 	 * Name of the helper functions accessor.
 	 */

cst/plugins/eu.esdihumboldt.cst.functions.groovy/src/eu/esdihumboldt/cst/functions/groovy/internal/GroovyUtil.java

@@ -43,6 +43,7 @@
 import eu.esdihumboldt.hale.common.core.io.Text;
 import eu.esdihumboldt.hale.common.core.io.project.ProjectInfoService;
 import eu.esdihumboldt.hale.common.core.report.SimpleLog;
+import eu.esdihumboldt.hale.common.core.service.DelegateServiceProvider;
 import eu.esdihumboldt.hale.common.instance.groovy.InstanceBuilder;
 import eu.esdihumboldt.hale.common.instance.index.InstanceIndexService;
 import eu.esdihumboldt.hale.common.instance.index.spatial.SpatialIndexService;
@@ -305,6 +306,9 @@ public static Binding createBinding(InstanceBuilder builder, Cell cell, Cell typ
 		binding.setVariable(BINDING_INSTANCE_INDEX,
 				executionContext.getService(InstanceIndexService.class));
 
+		binding.setVariable(BINDING_SERVICE_PROVIDER,
+				new DelegateServiceProvider(executionContext));
+
 		return binding;
 	}
 }