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14149533
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2013-01-04T00:38:47.897
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2013-01-04T00:44:25.010
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I used <code>scala-io</code>, <code>scala-arm</code> to write a binary stream of <code>Long</code>-s. The libraries itself are supposed to be a Scala-way to do things, but these are not in Scala <code>master</code> branch - maybe someone knows why? I use them from time to time. 1) Clone <code>scala-io</code>: <code>git clone https://github.com/scala-incubator/scala-io.git</code> Go to <code>scala-io/package</code> and change in <code>Build.scala</code>, <code>val scalaVersion</code> to yours <code>sbt package</code> 2) Clone <code>scala-arm</code>: <code>git clone https://github.com/jsuereth/scala-arm.git</code> Go to <code>scala-arm/package</code> and change in <code>build.scala</code>, <code>scalaVersion :=</code> to yours <code>sbt package</code> 3) Copy somewhere not too far: <code>scala-io/core/target/scala-xxx/scala-io-core_xxx-0.5.0-SNAPSHOT.jar</code> <code>scala-io/file/target/scala-xxx/scala-io-file_xxx-0.5.0-SNAPSHOT.jar</code> <code>scala-arm/target/scala-xxx/scala-arm_xxx-1.3-SNAPSHOT.jar</code> 4) Start REPL: <code>scala -classpath "/opt/scala-io/scala-io-core_2.10-0.5.0-SNAPSHOT.jar: /opt/scala-io/scala-io-file_2.10-0.5.0-SNAPSHOT.jar: /opt/scala-arm/scala-arm_2.10-1.3-SNAPSHOT.jar"</code> 5) <code>:paste</code> actual code: <pre><code>import scalax.io._ // create data stream val EOData = Vector(0xffffffffffffffffL) val data = List( (0, Vector(0L,1L,2L,3L)) ,(1, Vector(4L,5L)) ,(2, Vector(6L,7L,8L)) ,(3, Vector(9L)) ) var it = Iterator[Long]() for (rec <- data) { it = it ++ Vector(rec._1).iterator.map(_.toLong) it = it ++ rec._2.iterator it = it ++ EOData.iterator } // write data at once val out: Output = Resource.fromFile("/tmp/data") out.write(it)(OutputConverter.TraversableLongConverter) </code></pre>
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