PROTON-1337 Add missing file
Missed on last commit.
diff --git a/proton-j/src/main/java/org/apache/qpid/proton/codec/ReadableBuffer.java b/proton-j/src/main/java/org/apache/qpid/proton/codec/ReadableBuffer.java
new file mode 100644
index 0000000..1360d76
--- /dev/null
+++ b/proton-j/src/main/java/org/apache/qpid/proton/codec/ReadableBuffer.java
@@ -0,0 +1,191 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.qpid.proton.codec;
+
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
+
+/**
+ * Interface to abstract a buffer, similar to {@link WritableBuffer}
+ */
+public interface ReadableBuffer {
+
+ void put(ReadableBuffer other);
+
+ byte get();
+
+ int getInt();
+
+ long getLong();
+
+ short getShort();
+
+ float getFloat();
+
+ double getDouble();
+
+ ReadableBuffer get(final byte[] data, final int offset, final int length);
+
+ ReadableBuffer get(final byte[] data);
+
+ ReadableBuffer position(int position);
+
+ ReadableBuffer slice();
+
+ ReadableBuffer flip();
+
+ ReadableBuffer limit(int limit);
+
+ int limit();
+
+ int remaining();
+
+ int position();
+
+ boolean hasRemaining();
+
+ ReadableBuffer duplicate();
+
+ ByteBuffer byteBuffer();
+
+ String readUTF8();
+
+ final class ByteBufferReader implements ReadableBuffer {
+
+ private static final Charset Charset_UTF8 = Charset.forName("UTF-8");
+
+ private ByteBuffer buffer;
+
+ public static ByteBufferReader allocate(int size) {
+ ByteBuffer allocated = ByteBuffer.allocate(size);
+ return new ByteBufferReader(allocated);
+ }
+
+ public ByteBufferReader(ByteBuffer buffer) {
+ this.buffer = buffer;
+ }
+
+ @Override
+ public byte get() {
+ return buffer.get();
+ }
+
+ @Override
+ public int getInt() {
+ return buffer.getInt();
+ }
+
+ @Override
+ public long getLong() {
+ return buffer.getLong();
+ }
+
+ @Override
+ public short getShort() {
+ return buffer.getShort();
+ }
+
+ @Override
+ public float getFloat() {
+ return buffer.getFloat();
+ }
+
+ @Override
+ public double getDouble() {
+ return buffer.getDouble();
+ }
+
+ @Override
+ public int limit() {
+ return buffer.limit();
+ }
+
+ @Override
+ public ReadableBuffer get(byte[] data, int offset, int length) {
+ buffer.get(data, offset, length);
+ return this;
+ }
+
+ @Override
+ public ReadableBuffer get(byte[] data) {
+ buffer.get(data);
+ return this;
+ }
+
+ @Override
+ public ReadableBuffer flip() {
+ buffer.flip();
+ return this;
+ }
+
+ @Override
+ public ReadableBuffer position(int position) {
+ buffer.position(position);
+ return this;
+ }
+
+ @Override
+ public ReadableBuffer slice() {
+ return new ByteBufferReader(buffer.slice());
+ }
+
+ @Override
+ public ReadableBuffer limit(int limit) {
+ buffer.limit(limit);
+ return this;
+ }
+
+ @Override
+ public int remaining() {
+ return buffer.remaining();
+ }
+
+ @Override
+ public int position() {
+ return buffer.position();
+ }
+
+ @Override
+ public boolean hasRemaining() {
+ return buffer.hasRemaining();
+ }
+
+ @Override
+ public ReadableBuffer duplicate() {
+ return new ByteBufferReader(buffer.duplicate());
+ }
+
+ @Override
+ public ByteBuffer byteBuffer() {
+ return buffer;
+ }
+
+ @Override
+ public String readUTF8() {
+ CharBuffer charBuf = Charset_UTF8.decode(buffer);
+ return charBuf.toString();
+ }
+
+ @Override
+ public void put(ReadableBuffer other) {
+ this.buffer.put(other.byteBuffer());
+ }
+ }
+}
\ No newline at end of file
