Use version metadata stamped by the build process

1 files changed, 33 insertions, 7 deletions

diff --git a/src/main/java/com/iciql/Constants.java b/src/main/java/com/iciql/Constants.java
index ba75de3..6b5d83a 100644
--- a/src/main/java/com/iciql/Constants.java
+++ b/src/main/java/com/iciql/Constants.java
@@ -16,6 +16,10 @@
 

 package com.iciql;

 

+import java.net.URL;

+import java.util.jar.Attributes;

+import java.util.jar.Manifest;

+

 /**

  * Iciql constants.

  */

@@ -25,14 +29,36 @@ public class Constants {
 

 	// The build script extracts this exact line so be careful editing it

 	// and only use A-Z a-z 0-9 .-_ in the string.

-	public static final String VERSION = "1.6.0-SNAPSHOT";

+	public static final String API_CURRENT = "15";

 

-	// The build script extracts this exact line so be careful editing it

-	// and only use A-Z a-z 0-9 .-_ in the string.

-	public static final String VERSION_DATE = "PENDING";

+	public static String getVersion() {

+		String v = Constants.class.getPackage().getImplementationVersion();

+		if (v == null) {

+			return "0.0.0-SNAPSHOT";

+		}

+		return v;

+	}

 

-	// The build script extracts this exact line so be careful editing it

-	// and only use A-Z a-z 0-9 .-_ in the string.

-	public static final String API_CURRENT = "15";

+	public static String getBuildDate() {

+		return getManifestValue("build-date", "PENDING");

+	}

 

+	private static String getManifestValue(String attrib, String defaultValue) {

+		Class<?> clazz = Constants.class;

+		String className = clazz.getSimpleName() + ".class";

+		String classPath = clazz.getResource(className).toString();

+		if (!classPath.startsWith("jar")) {

+			// Class not from JAR

+			return defaultValue;

+		}

+		try {

+			String manifestPath = classPath.substring(0, classPath.lastIndexOf("!") + 1) + "/META-INF/MANIFEST.MF";

+			Manifest manifest = new Manifest(new URL(manifestPath).openStream());

+			Attributes attr = manifest.getMainAttributes();

+			String value = attr.getValue(attrib);

+			return value;

+		} catch (Exception e) {

+		}

+		return defaultValue;

+	}

 }