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added help method for reading from streams

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This commit is contained in:
fros4943 2009-10-29 16:48:50 +00:00
parent 54ac5bc64e
commit b4a4572d97
1 changed files with 20 additions and 1 deletions
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21
tools/cooja/java/se/sics/cooja/util/ArrayUtils.java
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@ -24,7 +24,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ArrayUtils.java,v 1.2 2009/10/27 09:52:24 fros4943 Exp $
* $Id: ArrayUtils.java,v 1.3 2009/10/29 16:48:50 fros4943 Exp $
*/
package se.sics.cooja.util;
@ -35,6 +35,9 @@ import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.ByteBuffer;
import javax.swing.JFileChooser;
@ -131,4 +134,20 @@ public class ArrayUtils {
}
}
public static byte[] readFromStream(InputStream input) {
try {
int numRead = 0;
int offset = 0;
byte data[] = new byte[input.available()*2];
DataInputStream dataIn = new DataInputStream(input);
while ((numRead = dataIn.read(data, offset, data.length-offset)) >= 0) {
offset += numRead;
}
byte[] streamData = new byte[offset];
System.arraycopy(data, 0, streamData, 0, offset);
return streamData;
} catch (Exception ex) {
return null;
}
}
}