move uncompressinputstream main into demo class

otter606 · otter606 · commit 362a102eabdb · 2021-11-15T22:26:12.000Z
diff --git a/biojava-core/src/main/java/demo/UncompressFile.java b/biojava-core/src/main/java/demo/UncompressFile.java
@@ -0,0 +1,42 @@
+package demo;
+
+import java.io.FileInputStream;
+import java.io.InputStream;
+
+import org.biojava.nbio.core.util.UncompressInputStream;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Uncompresses a single tarred or zipped file, writing output to stdandard out
+ */
+public class UncompressFile {
+    private final static Logger logger
+		= LoggerFactory.getLogger(UncompressFile.class);
+
+    /**
+	 * Reads a file, uncompresses it, and sends the result to stdout.
+	 * Also writes trivial statistics to stderr.
+	 * @param args An array with one String element, the name of the file to read.
+	 * @throws IOException for any failure
+	 */
+	public static void main(String[] args) throws Exception {
+
+		if (args.length != 1) {
+			logger.info("Usage: UncompressInputStream <file>");
+			System.exit(1);
+		}
+		long beg = System.currentTimeMillis();
+
+		long tot;
+		try (InputStream in = new FileInputStream(args[0]); 
+         ) {
+			tot = UncompressInputStream.uncompress(in, System.out);
+		}
+
+		long end = System.currentTimeMillis();
+		logger.info("Decompressed {} bytes", tot);
+		logger.info("Time: {} seconds", (end - beg) / 1000);
+	}
+    
+}
