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Posted to commits@labs.apache.org by el...@apache.org on 2012/08/05 08:24:46 UTC
svn commit: r1369526 - in /labs/mavibot/trunk/mavibot/src:
main/java/org/apache/mavibot/btree/serializer/ByteArraySerializer.java
test/java/org/apache/mavibot/btree/serializer/ByteArraySerializerTest.java
Author: elecharny
Date: Sun Aug 5 06:24:46 2012
New Revision: 1369526
URL: http://svn.apache.org/viewvc?rev=1369526&view=rev
Log:
Added the ByteArraySeralizer class and test
Added:
labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/ByteArraySerializer.java
labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/ByteArraySerializerTest.java
Added: labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/ByteArraySerializer.java
URL: http://svn.apache.org/viewvc/labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/ByteArraySerializer.java?rev=1369526&view=auto
==============================================================================
--- labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/ByteArraySerializer.java (added)
+++ labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/ByteArraySerializer.java Sun Aug 5 06:24:46 2012
@@ -0,0 +1,108 @@
+/*
+ * 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.mavibot.btree.serializer;
+
+
+import java.io.IOException;
+
+
+/**
+ * A serializer for a byte[].
+ *
+ * @author <a href="mailto:labs@labs.apache.org">Mavibot labs Project</a>
+ */
+public class ByteArraySerializer implements ElementSerializer<byte[]>
+{
+ /**
+ * {@inheritDoc}
+ */
+ public byte[] serialize( byte[] element )
+ {
+ int len = -1;
+
+ if ( element != null )
+ {
+ len = element.length;
+ }
+
+ byte[] bytes = null;
+
+ switch ( len )
+ {
+ case 0:
+ bytes = new byte[4];
+
+ bytes[0] = 0x00;
+ bytes[1] = 0x00;
+ bytes[2] = 0x00;
+ bytes[3] = 0x00;
+
+ break;
+
+ case -1:
+ bytes = new byte[4];
+
+ bytes[0] = ( byte ) 0xFF;
+ bytes[1] = ( byte ) 0xFF;
+ bytes[2] = ( byte ) 0xFF;
+ bytes[3] = ( byte ) 0xFF;
+
+ break;
+
+ default:
+ bytes = new byte[len + 4];
+
+ System.arraycopy( element, 0, bytes, 4, len );
+
+ bytes[0] = ( byte ) ( len >>> 24 );
+ bytes[1] = ( byte ) ( len >>> 16 );
+ bytes[2] = ( byte ) ( len >>> 8 );
+ bytes[3] = ( byte ) ( len );
+ }
+
+ return bytes;
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ public byte[] deserialize( BufferHandler bufferHandler ) throws IOException
+ {
+ byte[] in = bufferHandler.read( 4 );
+
+ int len = IntSerializer.deserialize( in );
+
+ switch ( len )
+ {
+ case 0:
+ return new byte[]
+ {};
+
+ case -1:
+ return null;
+
+ default:
+ in = bufferHandler.read( len );
+
+ return in;
+ }
+ }
+}
Added: labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/ByteArraySerializerTest.java
URL: http://svn.apache.org/viewvc/labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/ByteArraySerializerTest.java?rev=1369526&view=auto
==============================================================================
--- labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/ByteArraySerializerTest.java (added)
+++ labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/ByteArraySerializerTest.java Sun Aug 5 06:24:46 2012
@@ -0,0 +1,85 @@
+/*
+ * 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.mavibot.btree.serializer;
+
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+import org.junit.Test;
+
+
+/**
+ * Test the BytesSerializer class
+ *
+ * @author <a href="mailto:labs@labs.apache.org">Mavibot labs Project</a>
+ */
+public class ByteArraySerializerTest
+{
+ private static ByteArraySerializer serializer = new ByteArraySerializer();
+
+
+ @Test
+ public void testBytesSerializer() throws IOException
+ {
+ byte[] value = null;
+ byte[] result = serializer.serialize( value );
+
+ assertEquals( 4, result.length );
+ assertEquals( ( byte ) 0xFF, result[0] );
+ assertEquals( ( byte ) 0xFF, result[1] );
+ assertEquals( ( byte ) 0xFF, result[2] );
+ assertEquals( ( byte ) 0xFF, result[3] );
+
+ assertEquals( value, serializer.deserialize( new BufferHandler( result ) ) );
+
+ // ------------------------------------------------------------------
+ value = new byte[]
+ {};
+ result = serializer.serialize( value );
+
+ assertEquals( 4, result.length );
+ assertEquals( ( byte ) 0x00, result[0] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[3] );
+
+ assertTrue( Arrays.equals( value, serializer.deserialize( new BufferHandler( result ) ) ) );
+
+ // ------------------------------------------------------------------
+ value = "test".getBytes();
+ result = serializer.serialize( value );
+
+ assertEquals( 8, result.length );
+ assertEquals( ( byte ) 0x00, result[0] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x04, result[3] );
+ assertEquals( 't', result[4] );
+ assertEquals( 'e', result[5] );
+ assertEquals( 's', result[6] );
+ assertEquals( 't', result[7] );
+
+ assertTrue( Arrays.equals( value, serializer.deserialize( new BufferHandler( result ) ) ) );
+ }
+}
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