http://git-wip-us.apache.org/repos/asf/hbase-site/blob/86fde03b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueDecoder.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueDecoder.html b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueDecoder.html index a6ce21d..ee41b19 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueDecoder.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueDecoder.html @@ -35,132 +35,168 @@ <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.27"></a> <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.28"></a> <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.NoTagsKeyValue;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ShareableMemory;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>/**<a name="line.35"></a> -<span class="sourceLineNo">036</span> * Codec that does KeyValue version 1 serialization.<a name="line.36"></a> -<span class="sourceLineNo">037</span> * <a name="line.37"></a> -<span class="sourceLineNo">038</span> * <p>Encodes Cell as serialized in KeyValue with total length prefix.<a name="line.38"></a> -<span class="sourceLineNo">039</span> * This is how KVs were serialized in Puts, Deletes and Results pre-0.96. Its what would<a name="line.39"></a> -<span class="sourceLineNo">040</span> * happen if you called the Writable#write KeyValue implementation. This encoder will fail<a name="line.40"></a> -<span class="sourceLineNo">041</span> * if the passed Cell is not an old-school pre-0.96 KeyValue. Does not copy bytes writing.<a name="line.41"></a> -<span class="sourceLineNo">042</span> * It just writes them direct to the passed stream.<a name="line.42"></a> -<span class="sourceLineNo">043</span> *<a name="line.43"></a> -<span class="sourceLineNo">044</span> * <p>If you wrote two KeyValues to this encoder, it would look like this in the stream:<a name="line.44"></a> -<span class="sourceLineNo">045</span> * <pre><a name="line.45"></a> -<span class="sourceLineNo">046</span> * length-of-KeyValue1 // A java int with the length of KeyValue1 backing array<a name="line.46"></a> -<span class="sourceLineNo">047</span> * KeyValue1 backing array filled with a KeyValue serialized in its particular format<a name="line.47"></a> -<span class="sourceLineNo">048</span> * length-of-KeyValue2<a name="line.48"></a> -<span class="sourceLineNo">049</span> * KeyValue2 backing array<a name="line.49"></a> -<span class="sourceLineNo">050</span> * </pre><a name="line.50"></a> -<span class="sourceLineNo">051</span> */<a name="line.51"></a> -<span class="sourceLineNo">052</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.52"></a> -<span class="sourceLineNo">053</span>public class KeyValueCodec implements Codec {<a name="line.53"></a> -<span class="sourceLineNo">054</span> public static class KeyValueEncoder extends BaseEncoder {<a name="line.54"></a> -<span class="sourceLineNo">055</span> public KeyValueEncoder(final OutputStream out) {<a name="line.55"></a> -<span class="sourceLineNo">056</span> super(out);<a name="line.56"></a> -<span class="sourceLineNo">057</span> }<a name="line.57"></a> -<span class="sourceLineNo">058</span><a name="line.58"></a> -<span class="sourceLineNo">059</span> @Override<a name="line.59"></a> -<span class="sourceLineNo">060</span> public void write(Cell cell) throws IOException {<a name="line.60"></a> -<span class="sourceLineNo">061</span> checkFlushed();<a name="line.61"></a> -<span class="sourceLineNo">062</span> // Do not write tags over RPC<a name="line.62"></a> -<span class="sourceLineNo">063</span> ByteBufferUtils.putInt(this.out, KeyValueUtil.getSerializedSize(cell, false));<a name="line.63"></a> -<span class="sourceLineNo">064</span> KeyValueUtil.oswrite(cell, out, false);<a name="line.64"></a> -<span class="sourceLineNo">065</span> }<a name="line.65"></a> -<span class="sourceLineNo">066</span> }<a name="line.66"></a> -<span class="sourceLineNo">067</span><a name="line.67"></a> -<span class="sourceLineNo">068</span> public static class KeyValueDecoder extends BaseDecoder {<a name="line.68"></a> -<span class="sourceLineNo">069</span> public KeyValueDecoder(final InputStream in) {<a name="line.69"></a> -<span class="sourceLineNo">070</span> super(in);<a name="line.70"></a> -<span class="sourceLineNo">071</span> }<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> protected Cell parseCell() throws IOException {<a name="line.73"></a> -<span class="sourceLineNo">074</span> // No tags here<a name="line.74"></a> -<span class="sourceLineNo">075</span> return KeyValueUtil.iscreate(in, false);<a name="line.75"></a> -<span class="sourceLineNo">076</span> }<a name="line.76"></a> -<span class="sourceLineNo">077</span> }<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span> public static class ByteBufferedKeyValueDecoder implements Codec.Decoder {<a name="line.79"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.OffheapKeyValue;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.ShareableMemory;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.35"></a> +<span class="sourceLineNo">036</span><a name="line.36"></a> +<span class="sourceLineNo">037</span>/**<a name="line.37"></a> +<span class="sourceLineNo">038</span> * Codec that does KeyValue version 1 serialization.<a name="line.38"></a> +<span class="sourceLineNo">039</span> * <a name="line.39"></a> +<span class="sourceLineNo">040</span> * <p>Encodes Cell as serialized in KeyValue with total length prefix.<a name="line.40"></a> +<span class="sourceLineNo">041</span> * This is how KVs were serialized in Puts, Deletes and Results pre-0.96. Its what would<a name="line.41"></a> +<span class="sourceLineNo">042</span> * happen if you called the Writable#write KeyValue implementation. This encoder will fail<a name="line.42"></a> +<span class="sourceLineNo">043</span> * if the passed Cell is not an old-school pre-0.96 KeyValue. Does not copy bytes writing.<a name="line.43"></a> +<span class="sourceLineNo">044</span> * It just writes them direct to the passed stream.<a name="line.44"></a> +<span class="sourceLineNo">045</span> *<a name="line.45"></a> +<span class="sourceLineNo">046</span> * <p>If you wrote two KeyValues to this encoder, it would look like this in the stream:<a name="line.46"></a> +<span class="sourceLineNo">047</span> * <pre><a name="line.47"></a> +<span class="sourceLineNo">048</span> * length-of-KeyValue1 // A java int with the length of KeyValue1 backing array<a name="line.48"></a> +<span class="sourceLineNo">049</span> * KeyValue1 backing array filled with a KeyValue serialized in its particular format<a name="line.49"></a> +<span class="sourceLineNo">050</span> * length-of-KeyValue2<a name="line.50"></a> +<span class="sourceLineNo">051</span> * KeyValue2 backing array<a name="line.51"></a> +<span class="sourceLineNo">052</span> * </pre><a name="line.52"></a> +<span class="sourceLineNo">053</span> */<a name="line.53"></a> +<span class="sourceLineNo">054</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.54"></a> +<span class="sourceLineNo">055</span>public class KeyValueCodec implements Codec {<a name="line.55"></a> +<span class="sourceLineNo">056</span> public static class KeyValueEncoder extends BaseEncoder {<a name="line.56"></a> +<span class="sourceLineNo">057</span> public KeyValueEncoder(final OutputStream out) {<a name="line.57"></a> +<span class="sourceLineNo">058</span> super(out);<a name="line.58"></a> +<span class="sourceLineNo">059</span> }<a name="line.59"></a> +<span class="sourceLineNo">060</span><a name="line.60"></a> +<span class="sourceLineNo">061</span> @Override<a name="line.61"></a> +<span class="sourceLineNo">062</span> public void write(Cell cell) throws IOException {<a name="line.62"></a> +<span class="sourceLineNo">063</span> checkFlushed();<a name="line.63"></a> +<span class="sourceLineNo">064</span> // Do not write tags over RPC<a name="line.64"></a> +<span class="sourceLineNo">065</span> ByteBufferUtils.putInt(this.out, KeyValueUtil.getSerializedSize(cell, false));<a name="line.65"></a> +<span class="sourceLineNo">066</span> KeyValueUtil.oswrite(cell, out, false);<a name="line.66"></a> +<span class="sourceLineNo">067</span> }<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span><a name="line.69"></a> +<span class="sourceLineNo">070</span> public static class KeyValueDecoder extends BaseDecoder {<a name="line.70"></a> +<span class="sourceLineNo">071</span> public KeyValueDecoder(final InputStream in) {<a name="line.71"></a> +<span class="sourceLineNo">072</span> super(in);<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> protected Cell parseCell() throws IOException {<a name="line.75"></a> +<span class="sourceLineNo">076</span> // No tags here<a name="line.76"></a> +<span class="sourceLineNo">077</span> return KeyValueUtil.iscreate(in, false);<a name="line.77"></a> +<span class="sourceLineNo">078</span> }<a name="line.78"></a> +<span class="sourceLineNo">079</span> }<a name="line.79"></a> <span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> protected final ByteBuffer buf;<a name="line.81"></a> -<span class="sourceLineNo">082</span> protected Cell current = null;<a name="line.82"></a> -<span class="sourceLineNo">083</span><a name="line.83"></a> -<span class="sourceLineNo">084</span> public ByteBufferedKeyValueDecoder(ByteBuffer buf) {<a name="line.84"></a> -<span class="sourceLineNo">085</span> this.buf = buf;<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span class="sourceLineNo">088</span> @Override<a name="line.88"></a> -<span class="sourceLineNo">089</span> public boolean advance() throws IOException {<a name="line.89"></a> -<span class="sourceLineNo">090</span> if (this.buf.remaining() <= 0) {<a name="line.90"></a> -<span class="sourceLineNo">091</span> return false;<a name="line.91"></a> -<span class="sourceLineNo">092</span> }<a name="line.92"></a> -<span class="sourceLineNo">093</span> int len = ByteBufferUtils.toInt(buf);<a name="line.93"></a> -<span class="sourceLineNo">094</span> assert buf.hasArray();<a name="line.94"></a> -<span class="sourceLineNo">095</span> this.current = createCell(buf.array(), buf.arrayOffset() + buf.position(), len);<a name="line.95"></a> -<span class="sourceLineNo">096</span> buf.position(buf.position() + len);<a name="line.96"></a> -<span class="sourceLineNo">097</span> return true;<a name="line.97"></a> -<span class="sourceLineNo">098</span> }<a name="line.98"></a> -<span class="sourceLineNo">099</span><a name="line.99"></a> -<span class="sourceLineNo">100</span> @Override<a name="line.100"></a> -<span class="sourceLineNo">101</span> public Cell current() {<a name="line.101"></a> -<span class="sourceLineNo">102</span> return this.current;<a name="line.102"></a> -<span class="sourceLineNo">103</span> }<a name="line.103"></a> -<span class="sourceLineNo">104</span><a name="line.104"></a> -<span class="sourceLineNo">105</span> protected Cell createCell(byte[] buf, int offset, int len) {<a name="line.105"></a> -<span class="sourceLineNo">106</span> return new ShareableMemoryNoTagsKeyValue(buf, offset, len);<a name="line.106"></a> -<span class="sourceLineNo">107</span> }<a name="line.107"></a> -<span class="sourceLineNo">108</span><a name="line.108"></a> -<span class="sourceLineNo">109</span> static class ShareableMemoryKeyValue extends KeyValue implements ShareableMemory {<a name="line.109"></a> -<span class="sourceLineNo">110</span> public ShareableMemoryKeyValue(byte[] bytes, int offset, int length) {<a name="line.110"></a> -<span class="sourceLineNo">111</span> super(bytes, offset, length);<a name="line.111"></a> -<span class="sourceLineNo">112</span> }<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> @Override<a name="line.114"></a> -<span class="sourceLineNo">115</span> public Cell cloneToCell() {<a name="line.115"></a> -<span class="sourceLineNo">116</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.116"></a> -<span class="sourceLineNo">117</span> KeyValue kv = new KeyValue(copy, 0, copy.length);<a name="line.117"></a> -<span class="sourceLineNo">118</span> kv.setSequenceId(this.getSequenceId());<a name="line.118"></a> -<span class="sourceLineNo">119</span> return kv;<a name="line.119"></a> -<span class="sourceLineNo">120</span> }<a name="line.120"></a> -<span class="sourceLineNo">121</span> }<a name="line.121"></a> -<span class="sourceLineNo">122</span><a name="line.122"></a> -<span class="sourceLineNo">123</span> static class ShareableMemoryNoTagsKeyValue extends NoTagsKeyValue implements ShareableMemory {<a name="line.123"></a> -<span class="sourceLineNo">124</span> public ShareableMemoryNoTagsKeyValue(byte[] bytes, int offset, int length) {<a name="line.124"></a> -<span class="sourceLineNo">125</span> super(bytes, offset, length);<a name="line.125"></a> -<span class="sourceLineNo">126</span> }<a name="line.126"></a> -<span class="sourceLineNo">127</span><a name="line.127"></a> -<span class="sourceLineNo">128</span> @Override<a name="line.128"></a> -<span class="sourceLineNo">129</span> public Cell cloneToCell() {<a name="line.129"></a> -<span class="sourceLineNo">130</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.130"></a> -<span class="sourceLineNo">131</span> KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.131"></a> -<span class="sourceLineNo">132</span> kv.setSequenceId(this.getSequenceId());<a name="line.132"></a> -<span class="sourceLineNo">133</span> return kv;<a name="line.133"></a> -<span class="sourceLineNo">134</span> }<a name="line.134"></a> -<span class="sourceLineNo">135</span> }<a name="line.135"></a> -<span class="sourceLineNo">136</span> }<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> /**<a name="line.138"></a> -<span class="sourceLineNo">139</span> * Implementation depends on {@link InputStream#available()}<a name="line.139"></a> -<span class="sourceLineNo">140</span> */<a name="line.140"></a> -<span class="sourceLineNo">141</span> @Override<a name="line.141"></a> -<span class="sourceLineNo">142</span> public Decoder getDecoder(final InputStream is) {<a name="line.142"></a> -<span class="sourceLineNo">143</span> return new KeyValueDecoder(is);<a name="line.143"></a> -<span class="sourceLineNo">144</span> }<a name="line.144"></a> -<span class="sourceLineNo">145</span><a name="line.145"></a> -<span class="sourceLineNo">146</span> @Override<a name="line.146"></a> -<span class="sourceLineNo">147</span> public Decoder getDecoder(ByteBuffer buf) {<a name="line.147"></a> -<span class="sourceLineNo">148</span> return new ByteBufferedKeyValueDecoder(buf);<a name="line.148"></a> -<span class="sourceLineNo">149</span> }<a name="line.149"></a> -<span class="sourceLineNo">150</span><a name="line.150"></a> -<span class="sourceLineNo">151</span> @Override<a name="line.151"></a> -<span class="sourceLineNo">152</span> public Encoder getEncoder(OutputStream os) {<a name="line.152"></a> -<span class="sourceLineNo">153</span> return new KeyValueEncoder(os);<a name="line.153"></a> -<span class="sourceLineNo">154</span> }<a name="line.154"></a> -<span class="sourceLineNo">155</span>}<a name="line.155"></a> +<span class="sourceLineNo">081</span> public static class ByteBuffKeyValueDecoder implements Codec.Decoder {<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> protected final ByteBuff buf;<a name="line.83"></a> +<span class="sourceLineNo">084</span> protected Cell current = null;<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> public ByteBuffKeyValueDecoder(ByteBuff buf) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> this.buf = buf;<a name="line.87"></a> +<span class="sourceLineNo">088</span> }<a name="line.88"></a> +<span class="sourceLineNo">089</span><a name="line.89"></a> +<span class="sourceLineNo">090</span> @Override<a name="line.90"></a> +<span class="sourceLineNo">091</span> public boolean advance() throws IOException {<a name="line.91"></a> +<span class="sourceLineNo">092</span> if (!this.buf.hasRemaining()) {<a name="line.92"></a> +<span class="sourceLineNo">093</span> return false;<a name="line.93"></a> +<span class="sourceLineNo">094</span> }<a name="line.94"></a> +<span class="sourceLineNo">095</span> int len = buf.getInt();<a name="line.95"></a> +<span class="sourceLineNo">096</span> ByteBuffer bb = buf.asSubByteBuffer(len);<a name="line.96"></a> +<span class="sourceLineNo">097</span> if (bb.isDirect()) {<a name="line.97"></a> +<span class="sourceLineNo">098</span> this.current = createCell(bb, bb.position(), len);<a name="line.98"></a> +<span class="sourceLineNo">099</span> } else {<a name="line.99"></a> +<span class="sourceLineNo">100</span> this.current = createCell(bb.array(), bb.arrayOffset() + bb.position(), len);<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span> buf.skip(len);<a name="line.102"></a> +<span class="sourceLineNo">103</span> return true;<a name="line.103"></a> +<span class="sourceLineNo">104</span> }<a name="line.104"></a> +<span class="sourceLineNo">105</span><a name="line.105"></a> +<span class="sourceLineNo">106</span> @Override<a name="line.106"></a> +<span class="sourceLineNo">107</span> public Cell current() {<a name="line.107"></a> +<span class="sourceLineNo">108</span> return this.current;<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span><a name="line.110"></a> +<span class="sourceLineNo">111</span> protected Cell createCell(byte[] buf, int offset, int len) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> return new ShareableMemoryNoTagsKeyValue(buf, offset, len);<a name="line.112"></a> +<span class="sourceLineNo">113</span> }<a name="line.113"></a> +<span class="sourceLineNo">114</span><a name="line.114"></a> +<span class="sourceLineNo">115</span> protected Cell createCell(ByteBuffer bb, int pos, int len) {<a name="line.115"></a> +<span class="sourceLineNo">116</span> // We know there is not going to be any tags.<a name="line.116"></a> +<span class="sourceLineNo">117</span> return new ShareableMemoryOffheapKeyValue(bb, pos, len, false, 0);<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> static class ShareableMemoryKeyValue extends KeyValue implements ShareableMemory {<a name="line.120"></a> +<span class="sourceLineNo">121</span> public ShareableMemoryKeyValue(byte[] bytes, int offset, int length) {<a name="line.121"></a> +<span class="sourceLineNo">122</span> super(bytes, offset, length);<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> @Override<a name="line.125"></a> +<span class="sourceLineNo">126</span> public Cell cloneToCell() {<a name="line.126"></a> +<span class="sourceLineNo">127</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.127"></a> +<span class="sourceLineNo">128</span> KeyValue kv = new KeyValue(copy, 0, copy.length);<a name="line.128"></a> +<span class="sourceLineNo">129</span> kv.setSequenceId(this.getSequenceId());<a name="line.129"></a> +<span class="sourceLineNo">130</span> return kv;<a name="line.130"></a> +<span class="sourceLineNo">131</span> }<a name="line.131"></a> +<span class="sourceLineNo">132</span> }<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> static class ShareableMemoryNoTagsKeyValue extends NoTagsKeyValue implements ShareableMemory {<a name="line.134"></a> +<span class="sourceLineNo">135</span> public ShareableMemoryNoTagsKeyValue(byte[] bytes, int offset, int length) {<a name="line.135"></a> +<span class="sourceLineNo">136</span> super(bytes, offset, length);<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span><a name="line.138"></a> +<span class="sourceLineNo">139</span> @Override<a name="line.139"></a> +<span class="sourceLineNo">140</span> public Cell cloneToCell() {<a name="line.140"></a> +<span class="sourceLineNo">141</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.141"></a> +<span class="sourceLineNo">142</span> KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.142"></a> +<span class="sourceLineNo">143</span> kv.setSequenceId(this.getSequenceId());<a name="line.143"></a> +<span class="sourceLineNo">144</span> return kv;<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span> }<a name="line.146"></a> +<span class="sourceLineNo">147</span><a name="line.147"></a> +<span class="sourceLineNo">148</span> static class ShareableMemoryOffheapKeyValue extends OffheapKeyValue implements ShareableMemory {<a name="line.148"></a> +<span class="sourceLineNo">149</span> public ShareableMemoryOffheapKeyValue(ByteBuffer buf, int offset, int length) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> super(buf, offset, length);<a name="line.150"></a> +<span class="sourceLineNo">151</span> }<a name="line.151"></a> +<span class="sourceLineNo">152</span><a name="line.152"></a> +<span class="sourceLineNo">153</span> public ShareableMemoryOffheapKeyValue(ByteBuffer buf, int offset, int length, boolean hasTags,<a name="line.153"></a> +<span class="sourceLineNo">154</span> long seqId) {<a name="line.154"></a> +<span class="sourceLineNo">155</span> super(buf, offset, length, hasTags, seqId);<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span><a name="line.157"></a> +<span class="sourceLineNo">158</span> @Override<a name="line.158"></a> +<span class="sourceLineNo">159</span> public Cell cloneToCell() {<a name="line.159"></a> +<span class="sourceLineNo">160</span> byte[] copy = new byte[this.length];<a name="line.160"></a> +<span class="sourceLineNo">161</span> ByteBufferUtils.copyFromBufferToArray(copy, this.buf, this.offset, 0, this.length);<a name="line.161"></a> +<span class="sourceLineNo">162</span> KeyValue kv;<a name="line.162"></a> +<span class="sourceLineNo">163</span> if (this.hasTags) {<a name="line.163"></a> +<span class="sourceLineNo">164</span> kv = new KeyValue(copy, 0, copy.length);<a name="line.164"></a> +<span class="sourceLineNo">165</span> } else {<a name="line.165"></a> +<span class="sourceLineNo">166</span> kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> kv.setSequenceId(this.getSequenceId());<a name="line.168"></a> +<span class="sourceLineNo">169</span> return kv;<a name="line.169"></a> +<span class="sourceLineNo">170</span> }<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span><a name="line.173"></a> +<span class="sourceLineNo">174</span> /**<a name="line.174"></a> +<span class="sourceLineNo">175</span> * Implementation depends on {@link InputStream#available()}<a name="line.175"></a> +<span class="sourceLineNo">176</span> */<a name="line.176"></a> +<span class="sourceLineNo">177</span> @Override<a name="line.177"></a> +<span class="sourceLineNo">178</span> public Decoder getDecoder(final InputStream is) {<a name="line.178"></a> +<span class="sourceLineNo">179</span> return new KeyValueDecoder(is);<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span><a name="line.181"></a> +<span class="sourceLineNo">182</span> @Override<a name="line.182"></a> +<span class="sourceLineNo">183</span> public Decoder getDecoder(ByteBuff buf) {<a name="line.183"></a> +<span class="sourceLineNo">184</span> return new ByteBuffKeyValueDecoder(buf);<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span><a name="line.186"></a> +<span class="sourceLineNo">187</span> @Override<a name="line.187"></a> +<span class="sourceLineNo">188</span> public Encoder getEncoder(OutputStream os) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> return new KeyValueEncoder(os);<a name="line.189"></a> +<span class="sourceLineNo">190</span> }<a name="line.190"></a> +<span class="sourceLineNo">191</span>}<a name="line.191"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/86fde03b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueEncoder.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueEncoder.html b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueEncoder.html index a6ce21d..ee41b19 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueEncoder.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.KeyValueEncoder.html @@ -35,132 +35,168 @@ <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.27"></a> <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.28"></a> <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.NoTagsKeyValue;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ShareableMemory;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>/**<a name="line.35"></a> -<span class="sourceLineNo">036</span> * Codec that does KeyValue version 1 serialization.<a name="line.36"></a> -<span class="sourceLineNo">037</span> * <a name="line.37"></a> -<span class="sourceLineNo">038</span> * <p>Encodes Cell as serialized in KeyValue with total length prefix.<a name="line.38"></a> -<span class="sourceLineNo">039</span> * This is how KVs were serialized in Puts, Deletes and Results pre-0.96. 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class="sourceLineNo">053</span> */<a name="line.53"></a> +<span class="sourceLineNo">054</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.54"></a> +<span class="sourceLineNo">055</span>public class KeyValueCodec implements Codec {<a name="line.55"></a> +<span class="sourceLineNo">056</span> public static class KeyValueEncoder extends BaseEncoder {<a name="line.56"></a> +<span class="sourceLineNo">057</span> public KeyValueEncoder(final OutputStream out) {<a name="line.57"></a> +<span class="sourceLineNo">058</span> super(out);<a name="line.58"></a> +<span class="sourceLineNo">059</span> }<a name="line.59"></a> +<span class="sourceLineNo">060</span><a name="line.60"></a> +<span class="sourceLineNo">061</span> @Override<a name="line.61"></a> +<span class="sourceLineNo">062</span> public void write(Cell cell) throws IOException {<a name="line.62"></a> +<span class="sourceLineNo">063</span> checkFlushed();<a name="line.63"></a> +<span class="sourceLineNo">064</span> // Do not write tags over RPC<a name="line.64"></a> +<span class="sourceLineNo">065</span> ByteBufferUtils.putInt(this.out, KeyValueUtil.getSerializedSize(cell, false));<a name="line.65"></a> +<span class="sourceLineNo">066</span> KeyValueUtil.oswrite(cell, out, false);<a name="line.66"></a> +<span class="sourceLineNo">067</span> }<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span><a name="line.69"></a> +<span class="sourceLineNo">070</span> public static class KeyValueDecoder extends BaseDecoder {<a name="line.70"></a> +<span class="sourceLineNo">071</span> public KeyValueDecoder(final InputStream in) {<a name="line.71"></a> +<span class="sourceLineNo">072</span> super(in);<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> protected Cell parseCell() throws IOException {<a name="line.75"></a> +<span class="sourceLineNo">076</span> // No tags here<a name="line.76"></a> +<span class="sourceLineNo">077</span> return KeyValueUtil.iscreate(in, false);<a name="line.77"></a> +<span class="sourceLineNo">078</span> }<a name="line.78"></a> +<span class="sourceLineNo">079</span> }<a name="line.79"></a> <span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> protected final ByteBuffer buf;<a name="line.81"></a> -<span class="sourceLineNo">082</span> protected Cell current = null;<a name="line.82"></a> -<span class="sourceLineNo">083</span><a name="line.83"></a> -<span class="sourceLineNo">084</span> public ByteBufferedKeyValueDecoder(ByteBuffer buf) {<a name="line.84"></a> -<span class="sourceLineNo">085</span> this.buf = buf;<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span 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class="sourceLineNo">099</span><a name="line.99"></a> -<span class="sourceLineNo">100</span> @Override<a name="line.100"></a> -<span class="sourceLineNo">101</span> public Cell current() {<a name="line.101"></a> -<span class="sourceLineNo">102</span> return this.current;<a name="line.102"></a> -<span class="sourceLineNo">103</span> }<a name="line.103"></a> -<span class="sourceLineNo">104</span><a name="line.104"></a> -<span class="sourceLineNo">105</span> protected Cell createCell(byte[] buf, int offset, int len) {<a name="line.105"></a> -<span class="sourceLineNo">106</span> return new ShareableMemoryNoTagsKeyValue(buf, offset, len);<a name="line.106"></a> -<span class="sourceLineNo">107</span> }<a name="line.107"></a> -<span class="sourceLineNo">108</span><a name="line.108"></a> -<span class="sourceLineNo">109</span> static class ShareableMemoryKeyValue extends KeyValue implements ShareableMemory {<a name="line.109"></a> -<span class="sourceLineNo">110</span> public 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ByteBuffKeyValueDecoder implements Codec.Decoder {<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> protected final ByteBuff buf;<a name="line.83"></a> +<span class="sourceLineNo">084</span> protected Cell current = null;<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> public ByteBuffKeyValueDecoder(ByteBuff buf) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> this.buf = buf;<a name="line.87"></a> +<span class="sourceLineNo">088</span> }<a name="line.88"></a> +<span class="sourceLineNo">089</span><a name="line.89"></a> +<span class="sourceLineNo">090</span> @Override<a name="line.90"></a> +<span class="sourceLineNo">091</span> public boolean advance() throws IOException {<a name="line.91"></a> +<span class="sourceLineNo">092</span> if (!this.buf.hasRemaining()) {<a name="line.92"></a> +<span class="sourceLineNo">093</span> return false;<a name="line.93"></a> +<span class="sourceLineNo">094</span> }<a name="line.94"></a> +<span class="sourceLineNo">095</span> int len = buf.getInt();<a name="line.95"></a> +<span class="sourceLineNo">096</span> ByteBuffer bb = buf.asSubByteBuffer(len);<a name="line.96"></a> +<span class="sourceLineNo">097</span> if (bb.isDirect()) {<a name="line.97"></a> +<span class="sourceLineNo">098</span> this.current = createCell(bb, bb.position(), len);<a name="line.98"></a> +<span class="sourceLineNo">099</span> } else {<a name="line.99"></a> +<span class="sourceLineNo">100</span> this.current = createCell(bb.array(), bb.arrayOffset() + bb.position(), len);<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span> buf.skip(len);<a name="line.102"></a> +<span class="sourceLineNo">103</span> return true;<a name="line.103"></a> +<span class="sourceLineNo">104</span> }<a name="line.104"></a> +<span class="sourceLineNo">105</span><a name="line.105"></a> +<span class="sourceLineNo">106</span> @Override<a name="line.106"></a> +<span class="sourceLineNo">107</span> public Cell current() {<a name="line.107"></a> +<span class="sourceLineNo">108</span> return this.current;<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span><a name="line.110"></a> +<span class="sourceLineNo">111</span> protected Cell createCell(byte[] buf, int offset, int len) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> return new ShareableMemoryNoTagsKeyValue(buf, offset, len);<a name="line.112"></a> +<span class="sourceLineNo">113</span> }<a name="line.113"></a> +<span class="sourceLineNo">114</span><a name="line.114"></a> +<span class="sourceLineNo">115</span> protected Cell createCell(ByteBuffer bb, int pos, int len) {<a name="line.115"></a> +<span class="sourceLineNo">116</span> // We know there is not going to be any tags.<a name="line.116"></a> +<span class="sourceLineNo">117</span> return new ShareableMemoryOffheapKeyValue(bb, pos, len, false, 0);<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> static class ShareableMemoryKeyValue extends KeyValue implements ShareableMemory {<a name="line.120"></a> +<span class="sourceLineNo">121</span> public ShareableMemoryKeyValue(byte[] bytes, int offset, int length) {<a name="line.121"></a> +<span class="sourceLineNo">122</span> super(bytes, offset, length);<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> @Override<a name="line.125"></a> +<span class="sourceLineNo">126</span> public Cell cloneToCell() {<a name="line.126"></a> +<span class="sourceLineNo">127</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.127"></a> +<span class="sourceLineNo">128</span> KeyValue kv = new KeyValue(copy, 0, copy.length);<a name="line.128"></a> +<span class="sourceLineNo">129</span> kv.setSequenceId(this.getSequenceId());<a name="line.129"></a> +<span class="sourceLineNo">130</span> return kv;<a name="line.130"></a> +<span class="sourceLineNo">131</span> }<a name="line.131"></a> +<span class="sourceLineNo">132</span> }<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> static class ShareableMemoryNoTagsKeyValue extends NoTagsKeyValue implements ShareableMemory {<a name="line.134"></a> +<span class="sourceLineNo">135</span> public ShareableMemoryNoTagsKeyValue(byte[] bytes, int offset, int length) {<a name="line.135"></a> +<span class="sourceLineNo">136</span> super(bytes, offset, length);<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span><a name="line.138"></a> +<span class="sourceLineNo">139</span> @Override<a name="line.139"></a> +<span class="sourceLineNo">140</span> public Cell cloneToCell() {<a name="line.140"></a> +<span class="sourceLineNo">141</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.141"></a> +<span class="sourceLineNo">142</span> KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.142"></a> +<span class="sourceLineNo">143</span> kv.setSequenceId(this.getSequenceId());<a name="line.143"></a> +<span class="sourceLineNo">144</span> return kv;<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span> }<a name="line.146"></a> +<span class="sourceLineNo">147</span><a name="line.147"></a> +<span class="sourceLineNo">148</span> static class ShareableMemoryOffheapKeyValue extends OffheapKeyValue implements ShareableMemory {<a name="line.148"></a> +<span class="sourceLineNo">149</span> public ShareableMemoryOffheapKeyValue(ByteBuffer buf, int offset, int length) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> super(buf, offset, length);<a name="line.150"></a> +<span class="sourceLineNo">151</span> }<a name="line.151"></a> +<span class="sourceLineNo">152</span><a name="line.152"></a> +<span class="sourceLineNo">153</span> public ShareableMemoryOffheapKeyValue(ByteBuffer buf, int offset, int length, boolean hasTags,<a name="line.153"></a> +<span class="sourceLineNo">154</span> long seqId) {<a name="line.154"></a> +<span class="sourceLineNo">155</span> super(buf, offset, length, hasTags, seqId);<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span><a name="line.157"></a> +<span class="sourceLineNo">158</span> @Override<a name="line.158"></a> +<span class="sourceLineNo">159</span> public Cell cloneToCell() {<a name="line.159"></a> +<span class="sourceLineNo">160</span> byte[] copy = new byte[this.length];<a name="line.160"></a> +<span class="sourceLineNo">161</span> ByteBufferUtils.copyFromBufferToArray(copy, this.buf, this.offset, 0, this.length);<a name="line.161"></a> +<span class="sourceLineNo">162</span> KeyValue kv;<a name="line.162"></a> +<span class="sourceLineNo">163</span> if (this.hasTags) {<a name="line.163"></a> +<span class="sourceLineNo">164</span> kv = new KeyValue(copy, 0, copy.length);<a name="line.164"></a> +<span class="sourceLineNo">165</span> } else {<a name="line.165"></a> +<span class="sourceLineNo">166</span> kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> kv.setSequenceId(this.getSequenceId());<a name="line.168"></a> +<span class="sourceLineNo">169</span> return kv;<a name="line.169"></a> +<span class="sourceLineNo">170</span> }<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span><a name="line.173"></a> +<span class="sourceLineNo">174</span> /**<a name="line.174"></a> +<span class="sourceLineNo">175</span> * Implementation depends on {@link InputStream#available()}<a name="line.175"></a> +<span class="sourceLineNo">176</span> */<a name="line.176"></a> +<span class="sourceLineNo">177</span> @Override<a name="line.177"></a> +<span class="sourceLineNo">178</span> public Decoder getDecoder(final InputStream is) {<a name="line.178"></a> +<span class="sourceLineNo">179</span> return new KeyValueDecoder(is);<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span><a name="line.181"></a> +<span class="sourceLineNo">182</span> @Override<a name="line.182"></a> +<span class="sourceLineNo">183</span> public Decoder getDecoder(ByteBuff buf) {<a name="line.183"></a> +<span class="sourceLineNo">184</span> return new ByteBuffKeyValueDecoder(buf);<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span><a name="line.186"></a> +<span class="sourceLineNo">187</span> @Override<a name="line.187"></a> +<span class="sourceLineNo">188</span> public Encoder getEncoder(OutputStream os) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> return new KeyValueEncoder(os);<a name="line.189"></a> +<span class="sourceLineNo">190</span> }<a name="line.190"></a> +<span class="sourceLineNo">191</span>}<a name="line.191"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/86fde03b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.html b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.html index a6ce21d..ee41b19 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/codec/KeyValueCodec.html @@ -35,132 +35,168 @@ <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.27"></a> <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.28"></a> <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.NoTagsKeyValue;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ShareableMemory;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>/**<a name="line.35"></a> -<span class="sourceLineNo">036</span> * Codec that does KeyValue version 1 serialization.<a name="line.36"></a> -<span class="sourceLineNo">037</span> * <a name="line.37"></a> -<span class="sourceLineNo">038</span> * <p>Encodes Cell as serialized in KeyValue with total length prefix.<a name="line.38"></a> -<span class="sourceLineNo">039</span> * This is how KVs were serialized in Puts, Deletes and Results pre-0.96. Its what would<a name="line.39"></a> -<span class="sourceLineNo">040</span> * happen if you called the Writable#write KeyValue implementation. This encoder will fail<a name="line.40"></a> -<span class="sourceLineNo">041</span> * if the passed Cell is not an old-school pre-0.96 KeyValue. Does not copy bytes writing.<a name="line.41"></a> -<span class="sourceLineNo">042</span> * It just writes them direct to the passed stream.<a name="line.42"></a> -<span class="sourceLineNo">043</span> *<a name="line.43"></a> -<span class="sourceLineNo">044</span> * <p>If you wrote two KeyValues to this encoder, it would look like this in the stream:<a name="line.44"></a> -<span class="sourceLineNo">045</span> * <pre><a name="line.45"></a> -<span class="sourceLineNo">046</span> * length-of-KeyValue1 // A java int with the length of KeyValue1 backing array<a name="line.46"></a> -<span class="sourceLineNo">047</span> * KeyValue1 backing array filled with a KeyValue serialized in its particular format<a name="line.47"></a> -<span class="sourceLineNo">048</span> * length-of-KeyValue2<a name="line.48"></a> -<span class="sourceLineNo">049</span> * KeyValue2 backing array<a name="line.49"></a> -<span class="sourceLineNo">050</span> * </pre><a name="line.50"></a> -<span class="sourceLineNo">051</span> */<a name="line.51"></a> -<span class="sourceLineNo">052</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.52"></a> -<span class="sourceLineNo">053</span>public class KeyValueCodec implements Codec {<a name="line.53"></a> -<span class="sourceLineNo">054</span> public static class KeyValueEncoder extends BaseEncoder {<a name="line.54"></a> -<span class="sourceLineNo">055</span> public KeyValueEncoder(final OutputStream out) {<a name="line.55"></a> -<span class="sourceLineNo">056</span> super(out);<a name="line.56"></a> -<span class="sourceLineNo">057</span> }<a name="line.57"></a> -<span class="sourceLineNo">058</span><a name="line.58"></a> -<span class="sourceLineNo">059</span> @Override<a name="line.59"></a> -<span class="sourceLineNo">060</span> public void write(Cell cell) throws IOException {<a name="line.60"></a> -<span class="sourceLineNo">061</span> checkFlushed();<a name="line.61"></a> -<span class="sourceLineNo">062</span> // Do not write tags over RPC<a name="line.62"></a> -<span class="sourceLineNo">063</span> ByteBufferUtils.putInt(this.out, KeyValueUtil.getSerializedSize(cell, false));<a name="line.63"></a> -<span class="sourceLineNo">064</span> KeyValueUtil.oswrite(cell, out, false);<a name="line.64"></a> -<span class="sourceLineNo">065</span> }<a name="line.65"></a> -<span class="sourceLineNo">066</span> }<a name="line.66"></a> -<span class="sourceLineNo">067</span><a name="line.67"></a> -<span class="sourceLineNo">068</span> public static class KeyValueDecoder extends BaseDecoder {<a name="line.68"></a> -<span class="sourceLineNo">069</span> public KeyValueDecoder(final InputStream in) {<a name="line.69"></a> -<span class="sourceLineNo">070</span> super(in);<a name="line.70"></a> -<span class="sourceLineNo">071</span> }<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> protected Cell parseCell() throws IOException {<a name="line.73"></a> -<span class="sourceLineNo">074</span> // No tags here<a name="line.74"></a> -<span class="sourceLineNo">075</span> return KeyValueUtil.iscreate(in, false);<a name="line.75"></a> -<span class="sourceLineNo">076</span> }<a name="line.76"></a> -<span class="sourceLineNo">077</span> }<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span> public static class ByteBufferedKeyValueDecoder implements Codec.Decoder {<a name="line.79"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.OffheapKeyValue;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.ShareableMemory;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.35"></a> +<span class="sourceLineNo">036</span><a name="line.36"></a> +<span class="sourceLineNo">037</span>/**<a name="line.37"></a> +<span class="sourceLineNo">038</span> * Codec that does KeyValue version 1 serialization.<a name="line.38"></a> +<span class="sourceLineNo">039</span> * <a name="line.39"></a> +<span class="sourceLineNo">040</span> * <p>Encodes Cell as serialized in KeyValue with total length prefix.<a name="line.40"></a> +<span class="sourceLineNo">041</span> * This is how KVs were serialized in Puts, Deletes and Results pre-0.96. Its what would<a name="line.41"></a> +<span class="sourceLineNo">042</span> * happen if you called the Writable#write KeyValue implementation. This encoder will fail<a name="line.42"></a> +<span class="sourceLineNo">043</span> * if the passed Cell is not an old-school pre-0.96 KeyValue. Does not copy bytes writing.<a name="line.43"></a> +<span class="sourceLineNo">044</span> * It just writes them direct to the passed stream.<a name="line.44"></a> +<span class="sourceLineNo">045</span> *<a name="line.45"></a> +<span class="sourceLineNo">046</span> * <p>If you wrote two KeyValues to this encoder, it would look like this in the stream:<a name="line.46"></a> +<span class="sourceLineNo">047</span> * <pre><a name="line.47"></a> +<span class="sourceLineNo">048</span> * length-of-KeyValue1 // A java int with the length of KeyValue1 backing array<a name="line.48"></a> +<span class="sourceLineNo">049</span> * KeyValue1 backing array filled with a KeyValue serialized in its particular format<a name="line.49"></a> +<span class="sourceLineNo">050</span> * length-of-KeyValue2<a name="line.50"></a> +<span class="sourceLineNo">051</span> * KeyValue2 backing array<a name="line.51"></a> +<span class="sourceLineNo">052</span> * </pre><a name="line.52"></a> +<span class="sourceLineNo">053</span> */<a name="line.53"></a> +<span class="sourceLineNo">054</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.54"></a> +<span class="sourceLineNo">055</span>public class KeyValueCodec implements Codec {<a name="line.55"></a> +<span class="sourceLineNo">056</span> public static class KeyValueEncoder extends BaseEncoder {<a name="line.56"></a> +<span class="sourceLineNo">057</span> public KeyValueEncoder(final OutputStream out) {<a name="line.57"></a> +<span class="sourceLineNo">058</span> super(out);<a name="line.58"></a> +<span class="sourceLineNo">059</span> }<a name="line.59"></a> +<span class="sourceLineNo">060</span><a name="line.60"></a> +<span class="sourceLineNo">061</span> @Override<a name="line.61"></a> +<span class="sourceLineNo">062</span> public void write(Cell cell) throws IOException {<a name="line.62"></a> +<span class="sourceLineNo">063</span> checkFlushed();<a name="line.63"></a> +<span class="sourceLineNo">064</span> // Do not write tags over RPC<a name="line.64"></a> +<span class="sourceLineNo">065</span> ByteBufferUtils.putInt(this.out, KeyValueUtil.getSerializedSize(cell, false));<a name="line.65"></a> +<span class="sourceLineNo">066</span> KeyValueUtil.oswrite(cell, out, false);<a name="line.66"></a> +<span class="sourceLineNo">067</span> }<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span><a name="line.69"></a> +<span class="sourceLineNo">070</span> public static class KeyValueDecoder extends BaseDecoder {<a name="line.70"></a> +<span class="sourceLineNo">071</span> public KeyValueDecoder(final InputStream in) {<a name="line.71"></a> +<span class="sourceLineNo">072</span> super(in);<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> protected Cell parseCell() throws IOException {<a name="line.75"></a> +<span class="sourceLineNo">076</span> // No tags here<a name="line.76"></a> +<span class="sourceLineNo">077</span> return KeyValueUtil.iscreate(in, false);<a name="line.77"></a> +<span class="sourceLineNo">078</span> }<a name="line.78"></a> +<span class="sourceLineNo">079</span> }<a name="line.79"></a> <span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> protected final ByteBuffer buf;<a name="line.81"></a> -<span class="sourceLineNo">082</span> protected Cell current = null;<a name="line.82"></a> -<span class="sourceLineNo">083</span><a name="line.83"></a> -<span class="sourceLineNo">084</span> public ByteBufferedKeyValueDecoder(ByteBuffer buf) {<a name="line.84"></a> -<span class="sourceLineNo">085</span> this.buf = buf;<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span class="sourceLineNo">088</span> @Override<a name="line.88"></a> -<span class="sourceLineNo">089</span> public boolean advance() throws IOException {<a name="line.89"></a> -<span class="sourceLineNo">090</span> if (this.buf.remaining() <= 0) {<a name="line.90"></a> -<span class="sourceLineNo">091</span> return false;<a name="line.91"></a> -<span class="sourceLineNo">092</span> }<a name="line.92"></a> -<span class="sourceLineNo">093</span> int len = ByteBufferUtils.toInt(buf);<a name="line.93"></a> -<span class="sourceLineNo">094</span> assert buf.hasArray();<a name="line.94"></a> -<span class="sourceLineNo">095</span> this.current = createCell(buf.array(), buf.arrayOffset() + buf.position(), len);<a name="line.95"></a> -<span class="sourceLineNo">096</span> buf.position(buf.position() + len);<a name="line.96"></a> -<span class="sourceLineNo">097</span> return true;<a name="line.97"></a> -<span class="sourceLineNo">098</span> }<a name="line.98"></a> -<span class="sourceLineNo">099</span><a name="line.99"></a> -<span class="sourceLineNo">100</span> @Override<a name="line.100"></a> -<span class="sourceLineNo">101</span> public Cell current() {<a name="line.101"></a> -<span class="sourceLineNo">102</span> return this.current;<a name="line.102"></a> -<span class="sourceLineNo">103</span> }<a name="line.103"></a> -<span class="sourceLineNo">104</span><a name="line.104"></a> -<span class="sourceLineNo">105</span> protected Cell createCell(byte[] buf, int offset, int len) {<a name="line.105"></a> -<span class="sourceLineNo">106</span> return new ShareableMemoryNoTagsKeyValue(buf, offset, len);<a name="line.106"></a> -<span class="sourceLineNo">107</span> }<a name="line.107"></a> -<span class="sourceLineNo">108</span><a name="line.108"></a> -<span class="sourceLineNo">109</span> static class ShareableMemoryKeyValue extends KeyValue implements ShareableMemory {<a name="line.109"></a> -<span class="sourceLineNo">110</span> public ShareableMemoryKeyValue(byte[] bytes, int offset, int length) {<a name="line.110"></a> -<span class="sourceLineNo">111</span> super(bytes, offset, length);<a name="line.111"></a> -<span class="sourceLineNo">112</span> }<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> @Override<a name="line.114"></a> -<span class="sourceLineNo">115</span> public Cell cloneToCell() {<a name="line.115"></a> -<span class="sourceLineNo">116</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.116"></a> -<span class="sourceLineNo">117</span> KeyValue kv = new KeyValue(copy, 0, copy.length);<a name="line.117"></a> -<span class="sourceLineNo">118</span> kv.setSequenceId(this.getSequenceId());<a name="line.118"></a> -<span class="sourceLineNo">119</span> return kv;<a name="line.119"></a> -<span class="sourceLineNo">120</span> }<a name="line.120"></a> -<span class="sourceLineNo">121</span> }<a 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ByteBuffKeyValueDecoder implements Codec.Decoder {<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> protected final ByteBuff buf;<a name="line.83"></a> +<span class="sourceLineNo">084</span> protected Cell current = null;<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> public ByteBuffKeyValueDecoder(ByteBuff buf) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> this.buf = buf;<a name="line.87"></a> +<span class="sourceLineNo">088</span> }<a name="line.88"></a> +<span class="sourceLineNo">089</span><a name="line.89"></a> +<span class="sourceLineNo">090</span> @Override<a name="line.90"></a> +<span class="sourceLineNo">091</span> public boolean advance() throws IOException {<a name="line.91"></a> +<span class="sourceLineNo">092</span> if (!this.buf.hasRemaining()) {<a name="line.92"></a> +<span class="sourceLineNo">093</span> return false;<a name="line.93"></a> +<span class="sourceLineNo">094</span> }<a name="line.94"></a> +<span class="sourceLineNo">095</span> int len = buf.getInt();<a name="line.95"></a> +<span class="sourceLineNo">096</span> ByteBuffer bb = buf.asSubByteBuffer(len);<a name="line.96"></a> +<span class="sourceLineNo">097</span> if (bb.isDirect()) {<a name="line.97"></a> +<span class="sourceLineNo">098</span> this.current = createCell(bb, bb.position(), len);<a name="line.98"></a> +<span class="sourceLineNo">099</span> } else {<a name="line.99"></a> +<span class="sourceLineNo">100</span> this.current = createCell(bb.array(), bb.arrayOffset() + bb.position(), len);<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span> buf.skip(len);<a name="line.102"></a> +<span class="sourceLineNo">103</span> return true;<a name="line.103"></a> +<span class="sourceLineNo">104</span> }<a name="line.104"></a> +<span class="sourceLineNo">105</span><a name="line.105"></a> +<span class="sourceLineNo">106</span> @Override<a name="line.106"></a> +<span class="sourceLineNo">107</span> public Cell current() {<a name="line.107"></a> +<span class="sourceLineNo">108</span> return this.current;<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span><a name="line.110"></a> +<span class="sourceLineNo">111</span> protected Cell createCell(byte[] buf, int offset, int len) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> return new ShareableMemoryNoTagsKeyValue(buf, offset, len);<a name="line.112"></a> +<span class="sourceLineNo">113</span> }<a name="line.113"></a> +<span class="sourceLineNo">114</span><a name="line.114"></a> +<span class="sourceLineNo">115</span> protected Cell createCell(ByteBuffer bb, int pos, int len) {<a name="line.115"></a> +<span class="sourceLineNo">116</span> // We know there is not going to be any tags.<a name="line.116"></a> +<span class="sourceLineNo">117</span> return new ShareableMemoryOffheapKeyValue(bb, pos, len, false, 0);<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> static class ShareableMemoryKeyValue extends KeyValue implements ShareableMemory {<a name="line.120"></a> +<span class="sourceLineNo">121</span> public ShareableMemoryKeyValue(byte[] bytes, int offset, int length) {<a name="line.121"></a> +<span class="sourceLineNo">122</span> super(bytes, offset, length);<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> @Override<a name="line.125"></a> +<span class="sourceLineNo">126</span> public Cell cloneToCell() {<a name="line.126"></a> +<span class="sourceLineNo">127</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.127"></a> +<span class="sourceLineNo">128</span> KeyValue kv = new KeyValue(copy, 0, copy.length);<a name="line.128"></a> +<span class="sourceLineNo">129</span> kv.setSequenceId(this.getSequenceId());<a name="line.129"></a> +<span class="sourceLineNo">130</span> return kv;<a name="line.130"></a> +<span class="sourceLineNo">131</span> }<a name="line.131"></a> +<span class="sourceLineNo">132</span> }<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> static class ShareableMemoryNoTagsKeyValue extends NoTagsKeyValue implements ShareableMemory {<a name="line.134"></a> +<span class="sourceLineNo">135</span> public ShareableMemoryNoTagsKeyValue(byte[] bytes, int offset, int length) {<a name="line.135"></a> +<span class="sourceLineNo">136</span> super(bytes, offset, length);<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span><a name="line.138"></a> +<span class="sourceLineNo">139</span> @Override<a name="line.139"></a> +<span class="sourceLineNo">140</span> public Cell cloneToCell() {<a name="line.140"></a> +<span class="sourceLineNo">141</span> byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);<a name="line.141"></a> +<span class="sourceLineNo">142</span> KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.142"></a> +<span class="sourceLineNo">143</span> kv.setSequenceId(this.getSequenceId());<a name="line.143"></a> +<span class="sourceLineNo">144</span> return kv;<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span> }<a name="line.146"></a> +<span class="sourceLineNo">147</span><a name="line.147"></a> +<span class="sourceLineNo">148</span> static class ShareableMemoryOffheapKeyValue extends OffheapKeyValue implements ShareableMemory {<a name="line.148"></a> +<span class="sourceLineNo">149</span> public ShareableMemoryOffheapKeyValue(ByteBuffer buf, int offset, int length) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> super(buf, offset, length);<a name="line.150"></a> +<span class="sourceLineNo">151</span> }<a name="line.151"></a> +<span class="sourceLineNo">152</span><a name="line.152"></a> +<span class="sourceLineNo">153</span> public ShareableMemoryOffheapKeyValue(ByteBuffer buf, int offset, int length, boolean hasTags,<a name="line.153"></a> +<span class="sourceLineNo">154</span> long seqId) {<a name="line.154"></a> +<span class="sourceLineNo">155</span> super(buf, offset, length, hasTags, seqId);<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span><a name="line.157"></a> +<span class="sourceLineNo">158</span> @Override<a name="line.158"></a> +<span class="sourceLineNo">159</span> public Cell cloneToCell() {<a name="line.159"></a> +<span class="sourceLineNo">160</span> byte[] copy = new byte[this.length];<a name="line.160"></a> +<span class="sourceLineNo">161</span> ByteBufferUtils.copyFromBufferToArray(copy, this.buf, this.offset, 0, this.length);<a name="line.161"></a> +<span class="sourceLineNo">162</span> KeyValue kv;<a name="line.162"></a> +<span class="sourceLineNo">163</span> if (this.hasTags) {<a name="line.163"></a> +<span class="sourceLineNo">164</span> kv = new KeyValue(copy, 0, copy.length);<a name="line.164"></a> +<span class="sourceLineNo">165</span> } else {<a name="line.165"></a> +<span class="sourceLineNo">166</span> kv = new NoTagsKeyValue(copy, 0, copy.length);<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> kv.setSequenceId(this.getSequenceId());<a name="line.168"></a> +<span class="sourceLineNo">169</span> return kv;<a name="line.169"></a> +<span class="sourceLineNo">170</span> }<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span><a name="line.173"></a> +<span class="sourceLineNo">174</span> /**<a name="line.174"></a> +<span class="sourceLineNo">175</span> * Implementation depends on {@link InputStream#available()}<a name="line.175"></a> +<span class="sourceLineNo">176</span> */<a name="line.176"></a> +<span class="sourceLineNo">177</span> @Override<a name="line.177"></a> +<span class="sourceLineNo">178</span> public Decoder getDecoder(final InputStream is) {<a name="line.178"></a> +<span class="sourceLineNo">179</span> return new KeyValueDecoder(is);<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span><a name="line.181"></a> +<span class="sourceLineNo">182</span> @Override<a name="line.182"></a> +<span class="sourceLineNo">183</span> public Decoder getDecoder(ByteBuff buf) {<a name="line.183"></a> +<span class="sourceLineNo">184</span> return new ByteBuffKeyValueDecoder(buf);<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span><a name="line.186"></a> +<span class="sourceLineNo">187</span> @Override<a name="line.187"></a> +<span class="sourceLineNo">188</span> public Encoder getEncoder(OutputStream os) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> return new KeyValueEncoder(os);<a name="line.189"></a> +<span class="sourceLineNo">190</span> }<a name="line.190"></a> +<span class="sourceLineNo">191</span>}<a name="line.191"></a>
