projection by name method

Author: bosborn

CHANGELOG.md

@@ -7,6 +7,7 @@ Adheres to [Semantic Versioning](http://semver.org/).
 ## 3.0.4 (TBD)
 
 * simple-features-java version 2.0.4
+* Projection Factory projection by name method
 
 ## [3.0.3](https://github.com/ngageoint/simple-features-proj-java/releases/tag/3.0.3) (07-13-2020)
 

src/main/java/mil/nga/sf/proj/ProjectionFactory.java

@@ -44,6 +44,39 @@ public static Projection getProjection(long epsg) {
 				String.valueOf(epsg));
 	}
 
+	/**
+	 * Get the projection for the projection name, expected as 'authority:code'
+	 * or 'epsg_code'
+	 * 
+	 * @param name
+	 *            projection name
+	 * @return projection
+	 * @since 3.0.4
+	 */
+	public static Projection getProjection(String name) {
+
+		String authority = null;
+		String code = null;
+
+		String[] projectionParts = name.split(":");
+
+		switch (projectionParts.length) {
+		case 1:
+			authority = ProjectionConstants.AUTHORITY_EPSG;
+			code = projectionParts[0];
+			break;
+		case 2:
+			authority = projectionParts[0];
+			code = projectionParts[1];
+			break;
+		default:
+			throw new SFException("Invalid projection name '" + name
+					+ "', expected 'authority:code' or 'epsg_code'");
+		}
+
+		return getProjection(authority, code);
+	}
+
 	/**
 	 * Get the projection for authority and code
 	 *