1 files changed, 101 insertions, 0 deletions
diff --git a/utils/src/main/java/at/gv/egiz/bku/utils/StreamUtil.java b/utils/src/main/java/at/gv/egiz/bku/utils/StreamUtil.java
new file mode 100644
index 00000000..a774df2b
--- /dev/null
+++ b/utils/src/main/java/at/gv/egiz/bku/utils/StreamUtil.java
@@ -0,0 +1,101 @@
+/*
+* 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.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Reader;
+import java.io.Writer;
+
+public class StreamUtil {
+
+  /**
+   * Copies data. None of the streams will be closed.
+   * 
+   * @param is
+   * @param os
+   * @throws IOException
+   */
+  public static void copyStream(InputStream is, OutputStream os)
+      throws IOException {
+    copyStream(is, os, 1024);
+  }
+
+  /**
+   * Copies data. None of the streams will be closed.
+   * 
+   * @param is
+   * @param os
+   * @throws IOException
+   */
+  public static void copyStream(InputStream is, OutputStream os, int bufferSize)
+      throws IOException {
+    byte[] buffer = new byte[bufferSize];
+    copyStream(is, os, buffer);
+  }
+
+  /**
+   * Copies data. None of the streams will be closed.
+   * 
+   * @param is
+   * @param os
+   * @throws IOException
+   */
+  public static void copyStream(InputStream is, OutputStream os, byte[] buffer)
+      throws IOException {
+    for (int i = is.read(buffer); i > -1; i = is.read(buffer)) {
+      os.write(buffer, 0, i);
+    }
+  }
+  
+  /**
+   * Copies data. None of the streams will be closed.
+   * 
+   * @param is
+   * @param os
+   * @throws IOException
+   */
+  public static void copyStream(Reader is, Writer os)
+      throws IOException {
+    copyStream(is, os, 1024);
+  }
+
+  /**
+   * Copies data. None of the streams will be closed.
+   * 
+   * @param is
+   * @param os
+   * @throws IOException
+   */
+  public static void copyStream(Reader is, Writer os, int bufferSize)
+      throws IOException {
+    char[] chars = new char[bufferSize];
+    for (int i = is.read(chars); i > -1; i = is.read(chars)) {
+      os.write(chars, 0, i);
+    }
+  }
+
+  
+  public static String asString(InputStream is, String charset)
+      throws IOException {
+    ByteArrayOutputStream os = new ByteArrayOutputStream();
+    copyStream(is, os);
+    return new String(os.toByteArray(), charset);
+  }
+}