added to avoid multiple call on generating service token

src/main/java/org/gcube/common/authorization/library/utils/MultiServiceTokenRequest.java

@@ -0,0 +1,28 @@
+package org.gcube.common.authorization.library.utils;
+
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.gcube.common.authorization.library.provider.ServiceInfo;
+
+@XmlRootElement
+public class MultiServiceTokenRequest {
+	
+	private List<String> containerTokens;
+	private ServiceInfo info;
+	
+	public MultiServiceTokenRequest(List<String> containerTokens, ServiceInfo info) {
+		this.containerTokens = containerTokens;
+		this.info = info;
+	}
+
+	public List<String> getContainerTokens() {
+		return containerTokens;
+	}
+
+	public ServiceInfo getInfo() {
+		return info;
+	}
+	
+}