From 952703c780939e503a49d92a320c9d01bcb8bf17 Mon Sep 17 00:00:00 2001
From: Luca Frosini <luca.frosini@isti.cnr.it>
Date: Wed, 19 Oct 2022 12:32:08 +0200
Subject: [PATCH] Added the Linux distribution version in the HostingNode
 resource

---
 CHANGELOG.md                                  |  4 +
 pom.xml                                       | 12 ++-
 .../lifecycle/LinuxDistributionInfo.java      | 93 +++++++++++++++++++
 .../container/lifecycle/ProfileBuilder.java   |  9 ++
 4 files changed, 116 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/org/gcube/smartgears/handlers/container/lifecycle/LinuxDistributionInfo.java

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c2c59b..43fc0a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 # Changelog for Common Smartgears
 
+## [v3.1.6-SNAPSHOT]
+
+- Added Linux distribution version [#22933]
+
 ## [v3.1.5] - 2022-04-20
 
 - Added roles to ExternalService Info on request handler verification
diff --git a/pom.xml b/pom.xml
index 4b72490..5c7fb16 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 
 	<groupId>org.gcube.core</groupId>
 	<artifactId>common-smartgears</artifactId>
-	<version>3.1.5</version>
+	<version>3.1.6-SNAPSHOT</version>
 	<name>SmartGears</name>
 
 	<dependencyManagement>
@@ -19,7 +19,7 @@
 			<dependency>
 				<groupId>org.gcube.distribution</groupId>
 				<artifactId>gcube-bom</artifactId>
-				<version>2.0.1</version>
+				<version>2.1.0</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>
@@ -115,6 +115,14 @@
 			<version>3.0.1</version>
 			<scope>provided</scope>
 		</dependency>
+		
+		<!-- Added to support Java 11 JDK -->
+		<dependency>
+   			<groupId>javax.xml.bind</groupId>
+   			<artifactId>jaxb-api</artifactId>
+   			<scope>provided</scope>
+		</dependency>
+		<!-- END Added to support Java 11 JDK -->
 
 
 		<!-- ***************** test ******************* -->
diff --git a/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/LinuxDistributionInfo.java b/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/LinuxDistributionInfo.java
new file mode 100644
index 0000000..8fe8bc2
--- /dev/null
+++ b/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/LinuxDistributionInfo.java
@@ -0,0 +1,93 @@
+package org.gcube.smartgears.handlers.container.lifecycle;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Luca Frosini (ISTI-CNR)
+ */
+public class LinuxDistributionInfo {
+
+	private static final Logger logger = LoggerFactory.getLogger(LinuxDistributionInfo.class);
+
+	public static final String LSB_RELEASE_COMMAND = "lsb_release -a";
+	public static final String OS_RELEASE_FILE_PATH = "/etc/os-release";
+
+	protected Map<String, String> info;
+
+	protected Map<String, String> getInfoViaLsbReleaseCommand() throws IOException {
+		logger.trace("Going to exec {}", LSB_RELEASE_COMMAND);
+		Process process = Runtime.getRuntime().exec(LSB_RELEASE_COMMAND);
+		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+		Map<String, String> map = parseBufferedReader(bufferedReader);
+		bufferedReader.close();
+		return map;
+	}
+
+	private Map<String, String> parseBufferedReader(BufferedReader bufferedReader) throws IOException {
+		Map<String, String> map = new HashMap<>();
+		String line = "";
+		while ((line = bufferedReader.readLine()) != null) {
+			String[] nameValue = parseLine(line);
+			map.put(nameValue[0], nameValue[1]);
+		}
+		return map;
+	}
+
+	private String[] parseLine(String line) {
+		String[] splitted = line.split("=");
+		if (splitted.length < 2) {
+			splitted = line.split(":");
+		}
+		String[] ret = new String[2];
+		ret[0] = splitted[0].trim();
+		ret[1] = splitted[1].trim().replace("\"", "");
+		return ret;
+	}
+
+	private Map<String, String> getInfoViaFile(File file) throws IOException {
+		logger.trace("Going to read file {}", file.getAbsolutePath());
+		BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
+		Map<String, String> map = parseBufferedReader(bufferedReader);
+		bufferedReader.close();
+		return map;
+
+	}
+
+	protected Map<String, String> getInfoViaOsReleaseFile() throws IOException {
+		File osReleaseFile = new File(OS_RELEASE_FILE_PATH);
+		return getInfoViaFile(osReleaseFile);
+	}
+
+	private Map<String, String> retriveInfo() {
+		try {
+			return getInfoViaLsbReleaseCommand();
+		} catch (IOException e) {
+			
+		}
+		
+		try {
+			return getInfoViaOsReleaseFile();
+		}catch (IOException e) {
+			
+		}
+		
+		return null;
+	}
+
+	public Map<String, String> getInfo() {
+		if (info == null) {
+			info = retriveInfo();
+		}
+		return info;
+	}
+
+}
diff --git a/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/ProfileBuilder.java b/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/ProfileBuilder.java
index 05c5ec6..3f1ac67 100644
--- a/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/ProfileBuilder.java
+++ b/src/main/java/org/gcube/smartgears/handlers/container/lifecycle/ProfileBuilder.java
@@ -282,6 +282,15 @@ public class ProfileBuilder {
 		*/
 
 		
+		String osVersion = System.getProperty("os.name");
+		if(osVersion.compareToIgnoreCase("Linux")==0) {
+			LinuxDistributionInfo linuxDistributionInfo = new LinuxDistributionInfo();
+			Map<String,String> info = linuxDistributionInfo.getInfo();
+			for(String key : info.keySet()) {
+				variables.add().keyAndValue(key, info.get(key));
+			}
+		}
+		
 		variables.add().keyAndValue("Java", System.getProperty("java.version"));
 		
 		SmartGearsConfiguration config = ProviderFactory.provider().smartgearsConfiguration();