X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Futil%2Fbinary%2FByteBufferWriteable.java;fp=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Futil%2Fbinary%2FByteBufferWriteable.java;h=57cc86106e626f9b41ded841912be6f36632df64;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/util/binary/ByteBufferWriteable.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/util/binary/ByteBufferWriteable.java
new file mode 100644
index 000000000..57cc86106
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/util/binary/ByteBufferWriteable.java
@@ -0,0 +1,142 @@
+/*******************************************************************************
+ *  Copyright (c) 2010 Association for Decentralized Information Management in
+ *  Industry THTH ry.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.databoard.util.binary;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+/**
+ * IWriteable implementation with ByteBuffer as backend
+ * 
+ * @author Toni Kalajainen (toni.kalajainen@vtt.fi)
+ */
+public class ByteBufferWriteable implements BinaryWriteable {
+
+	ByteBuffer buf;
+	
+	public ByteBufferWriteable(ByteBuffer buf)
+	{
+		if (buf == null)
+			throw new IllegalArgumentException("null");
+		this.buf = buf;
+	}
+
+	@Override
+	public void write(int b) {
+		buf.put((byte) b);
+	}
+
+	@Override
+	public void writeByte(int b) throws IOException {
+		buf.put((byte) b);
+	}
+	
+	@Override
+	public void writeBoolean(boolean v) throws IOException {
+		buf.put( (byte) (v ? 1 : 0) );
+	}
+	
+	@Override
+	public void writeFully(ByteBuffer src) {
+		buf.put(src);
+	}
+
+	@Override
+	public void writeFully(ByteBuffer src, int length) {
+		if (src.hasArray()) {
+			byte[] array = src.array();
+			buf.put(array, src.arrayOffset() + src.position(), length);
+		} else {
+			for (int i=0; i<length; i++)
+				buf.put(src.get());
+		}
+	}
+
+	@Override
+	public void write(byte[] src, int offset, int length) {
+		buf.put(src, offset, length);
+	}
+
+	@Override
+	public void write(byte[] src) {
+		buf.put(src);
+	}
+
+	@Override
+	public void writeDouble(double value) {
+		buf.putDouble(value);
+	}
+
+	@Override
+	public void writeFloat(float value) {
+		buf.putFloat(value);
+	}
+
+	@Override
+	public void writeInt(int value) {
+		buf.putInt(value);
+	}
+
+	@Override
+	public void writeLong(long value) {
+		buf.putLong(value);
+	}
+
+	@Override
+	public void writeShort(int value) {
+		buf.putShort((short)value);
+	}
+	
+	@Override
+	public void writeChar(int value) {
+		buf.putChar((char) value);
+	}	
+
+	@Override
+	public void writeBytes(String s) throws IOException {
+		int len = s.length();
+		for (int i = 0 ; i < len ; i++) {
+		    buf.put((byte)s.charAt(i));
+		}
+	}
+	
+	@Override
+	public void writeChars(String s) throws IOException {
+        int len = s.length();
+        for (int i = 0 ; i < len ; i++) {
+            char v = s.charAt(i);
+            buf.putChar(v);
+        }
+	}
+	
+	@Override
+	public void writeUTF(String s) throws IOException {
+		int len = UTF8.getModifiedUTF8EncodingByteLength(s);
+		writeShort(len);
+		UTF8.writeModifiedUTF(this, s);
+	}
+
+	@Override
+	public void flush() {
+	}
+	
+	public long position() throws IOException {
+		return buf.position();
+	}
+	
+	public void position(long newPosition) throws IOException {
+		if (newPosition>=Integer.MAX_VALUE || newPosition<0) throw new IllegalArgumentException("index out of range");
+		buf.position((int) newPosition);		
+	}
+	
+}
+