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Posted to commits@labs.apache.org by el...@apache.org on 2012/07/31 19:08:12 UTC
svn commit: r1367677 - in /labs/mavibot/trunk/mavibot/src:
main/java/org/apache/mavibot/btree/serializer/LongSerializer.java
test/java/org/apache/mavibot/btree/serializer/LongSerializerTest.java
Author: elecharny
Date: Tue Jul 31 17:08:11 2012
New Revision: 1367677
URL: http://svn.apache.org/viewvc?rev=1367677&view=rev
Log:
Added the LongSerializer class and its associated test
Added:
labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/LongSerializer.java
labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/LongSerializerTest.java
Added: labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/LongSerializer.java
URL: http://svn.apache.org/viewvc/labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/LongSerializer.java?rev=1367677&view=auto
==============================================================================
--- labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/LongSerializer.java (added)
+++ labs/mavibot/trunk/mavibot/src/main/java/org/apache/mavibot/btree/serializer/LongSerializer.java Tue Jul 31 17:08:11 2012
@@ -0,0 +1,67 @@
+/*
+ * 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;
+
+
+/**
+ * The Long serializer.
+ *
+ * @author <a href="mailto:labs@labs.apache.org">Mavibot labs Project</a>
+ */
+public class LongSerializer implements ElementSerializer<Long>
+{
+ /**
+ * {@inheritDoc}
+ */
+ public byte[] serialize( Long element )
+ {
+ byte[] bytes = new byte[8];
+ long value = element.longValue();
+
+ bytes[0] = ( byte ) ( value >>> 56 );
+ bytes[1] = ( byte ) ( value >>> 48 );
+ bytes[2] = ( byte ) ( value >>> 40 );
+ bytes[3] = ( byte ) ( value >>> 32 );
+ bytes[4] = ( byte ) ( value >>> 24 );
+ bytes[5] = ( byte ) ( value >>> 16 );
+ bytes[6] = ( byte ) ( value >>> 8 );
+ bytes[7] = ( byte ) ( value );
+
+ return bytes;
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ public Long deserialize( byte[] in )
+ {
+ long result = ( ( long ) in[0] << 56 ) +
+ ( ( in[1] & 0xFFL ) << 48 ) +
+ ( ( in[2] & 0xFFL ) << 40 ) +
+ ( ( in[3] & 0xFFL ) << 32 ) +
+ ( ( in[4] & 0xFFL ) << 24 ) +
+ ( ( in[5] & 0xFFL ) << 16 ) +
+ ( ( in[6] & 0xFFL ) << 8 ) +
+ ( in[7] & 0xFFL );
+
+ return result;
+ }
+}
Added: labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/LongSerializerTest.java
URL: http://svn.apache.org/viewvc/labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/LongSerializerTest.java?rev=1367677&view=auto
==============================================================================
--- labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/LongSerializerTest.java (added)
+++ labs/mavibot/trunk/mavibot/src/test/java/org/apache/mavibot/btree/serializer/LongSerializerTest.java Tue Jul 31 17:08:11 2012
@@ -0,0 +1,355 @@
+/*
+ * 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 org.junit.Test;
+
+
+/**
+ * Test the LongSerializer class
+ *
+ * @author <a href="mailto:labs@labs.apache.org">Mavibot labs Project</a>
+ */
+public class LongSerializerTest
+{
+ private static LongSerializer serializer = new LongSerializer();
+
+
+ @Test
+ public void testLongSerializer()
+ {
+ long value = 0x0000000000000000L;
+ byte[] result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000000000001L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x01, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x00000000000000FFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000000000100L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x01, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x000000000000FFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000000010000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x01, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000000FFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000001000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x01, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x000000007FFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0x7F, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000080000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x80, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x00000000FFFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0xFF, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000000100000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x01, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x000000FFFFFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0xFF, result[4] );
+ assertEquals( ( byte ) 0xFF, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000010000000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x01, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0000FFFFFFFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0xFF, result[4] );
+ assertEquals( ( byte ) 0xFF, result[3] );
+ assertEquals( ( byte ) 0xFF, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0001000000000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x01, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x00FFFFFFFFFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0xFF, result[4] );
+ assertEquals( ( byte ) 0xFF, result[3] );
+ assertEquals( ( byte ) 0xFF, result[2] );
+ assertEquals( ( byte ) 0xFF, result[1] );
+ assertEquals( ( byte ) 0x00, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x0100000000000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x01, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x7FFFFFFFFFFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0xFF, result[4] );
+ assertEquals( ( byte ) 0xFF, result[3] );
+ assertEquals( ( byte ) 0xFF, result[2] );
+ assertEquals( ( byte ) 0xFF, result[1] );
+ assertEquals( ( byte ) 0x7F, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0x8000000000000000L;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0x00, result[7] );
+ assertEquals( ( byte ) 0x00, result[6] );
+ assertEquals( ( byte ) 0x00, result[5] );
+ assertEquals( ( byte ) 0x00, result[4] );
+ assertEquals( ( byte ) 0x00, result[3] );
+ assertEquals( ( byte ) 0x00, result[2] );
+ assertEquals( ( byte ) 0x00, result[1] );
+ assertEquals( ( byte ) 0x80, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+
+ // ------------------------------------------------------------------
+ value = 0xFFFFFFFFFFFFFFFFL;
+ result = serializer.serialize( value );
+
+ assertEquals( ( byte ) 0xFF, result[7] );
+ assertEquals( ( byte ) 0xFF, result[6] );
+ assertEquals( ( byte ) 0xFF, result[5] );
+ assertEquals( ( byte ) 0xFF, result[4] );
+ assertEquals( ( byte ) 0xFF, result[3] );
+ assertEquals( ( byte ) 0xFF, result[2] );
+ assertEquals( ( byte ) 0xFF, result[1] );
+ assertEquals( ( byte ) 0xFF, result[0] );
+
+ assertEquals( value, serializer.deserialize( result ).longValue() );
+ }
+}
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