Initial commit.

This supports only decompression in streamed mode using
LZMA2 and Delta filters. The integrity checks None,
CRC32, CRC64, and SHA-256 are supported.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/XZDecDemo.java b/src/XZDecDemo.java
new file mode 100644
index 0000000..25b83f7
--- /dev/null
+++ b/src/XZDecDemo.java
@@ -0,0 +1,62 @@
+/*
+ * XZDecDemo
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+import java.io.*;
+import org.tukaani.xz.*;
+
+/**
+ * Decompresses .xz files to standard output. If no arguments are given,
+ * reads from standard input.
+ */
+class XZDecDemo {
+    public static void main(String[] args) {
+        byte[] buf = new byte[8192];
+        String name = null;
+
+        try {
+            if (args.length == 0) {
+                name = "standard input";
+                InputStream in = new XZInputStream(System.in);
+
+                while (in.read(buf) != -1)
+                    System.out.write(buf);
+
+            } else {
+                // Read from files given on the command line.
+                for (int i = 0; i < args.length; ++i) {
+                    name = args[i];
+
+                    // Since XZInputStream does some buffering internally
+                    // anyway, BufferedInputStream doesn't seem to be
+                    // needed here to improve performance.
+                    InputStream in = new FileInputStream(name);
+                    // in = new BufferedInputStream(in);
+                    in = new XZInputStream(in);
+
+                    while (in.read(buf) != -1)
+                        System.out.write(buf);
+                }
+            }
+        } catch (FileNotFoundException e) {
+            System.err.println("XZDecDemo: Cannot open " + name + ": "
+                               + e.getMessage());
+            System.exit(1);
+
+        } catch (EOFException e) {
+            System.err.println("XZDecDemo: Unexpected end of input on "
+                               + name);
+            System.exit(1);
+
+        } catch (IOException e) {
+            System.err.println("XZDecDemo: Error decompressing from "
+                               + name + ": " + e.getMessage());
+            System.exit(1);
+        }
+    }
+}