1 files changed, 75 insertions, 0 deletions
diff --git a/utils/src/main/java/at/gv/egiz/bku/utils/HexDump.java b/utils/src/main/java/at/gv/egiz/bku/utils/HexDump.java
new file mode 100644
index 00000000..88d49bad
--- /dev/null
+++ b/utils/src/main/java/at/gv/egiz/bku/utils/HexDump.java
@@ -0,0 +1,75 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
+import java.io.Writer;
+
+public class HexDump {
+  
+  public static String hexDump(InputStream is) throws IOException {
+    StringWriter writer = new StringWriter();
+    hexDump(is, writer);
+    return writer.toString();
+  }
+  
+  public static void hexDump(InputStream is, Writer writer) throws IOException {
+    hexDump(is, writer, 16);
+  }
+  
+  public static void hexDump(InputStream is, Writer writer, int chunkSize) throws IOException {
+    
+    byte[] chunk = new byte[chunkSize];
+    long adr = 0;
+    for (int l; (l = is.read(chunk)) != -1;) {
+      
+      writer.append(String.format("[%06x]", adr));
+      for (int i = 0; i < l; i++) {
+        if (i % 8 == 0) {
+          writer.append(" ");
+        } else {
+          writer.append(":");
+        }
+        writer.append(Integer.toHexString((chunk[i] & 240) >> 4));
+        writer.append(Integer.toHexString(chunk[i] & 15));
+      }
+
+      for (int i = 0; i < (chunkSize - l); i++) {
+        writer.append("   ");
+      }
+      
+      for (int i = 0; i < l; i++) {
+        if (i % 8 == 0) {
+          writer.append(" ");
+        }
+        if (chunk[i] > 31 && chunk[i] < 127) {
+          writer.append((char) chunk[i]);
+        } else {
+          writer.append(".");
+        }
+      }
+
+      writer.append("\n");
+      adr += l;
+      
+    }
+    
+  }
+
+}