Feature/java api

README.md

@@ -67,9 +67,13 @@ l2(0) // The result of accessing released LArray is undefined
 In Java we cannot provide concise syntaxes as in Scala. Instead, use `apply` and `update` methods to read/write values in arrays.
 
 ```java
+import xerial.larray.japi.LArray;
 import xerial.larray.LIntArray;
 
-LIntArray l = new LIntArray(10000L);
+LIntArray l = LArray.newLIntArray(10000L);
 l.update(0L, 20) // Set l[0L] = 20
 l.apply(0L)  //  Get l[0L]
+
+// release 
+l.free 
 ```

project/Build.scala

@@ -47,6 +47,8 @@ object Build extends sbt.Build {
         libraryDependencies ++= Seq(
           // Add dependent jars here
           "org.xerial" % "xerial-core" % "3.1",
+          "junit" % "junit" % "4.10" % "test",
+          "com.novocode" % "junit-interface" % "0.10-M2" % "test",
           "org.scalatest" %% "scalatest" % "2.0.M5b" % "test",
           "org.scala-lang" % "scala-reflect" % SCALA_VERSION
         ),

src/main/java/xerial/larray/japi/LArray.java

@@ -0,0 +1,24 @@
+package xerial.larray.japi;
+
+import xerial.larray.DefaultAllocator;
+import xerial.larray.LByteArray;
+import xerial.larray.LIntArray;
+
+/**
+ * Java interface of LArray
+ * @author Taro L. Saito
+ */
+public class LArray {
+
+    static xerial.larray.MemoryAllocator defaultAllocator = new DefaultAllocator();
+
+    public static LIntArray newLIntArray(long size) {
+        return new LIntArray(size, defaultAllocator);
+    }
+
+    public static LByteArray newLByteArray(long size) {
+        return new LByteArray(size, defaultAllocator);
+    }
+
+
+}

src/main/scala/xerial/larray/LArray.scala

@@ -95,8 +95,7 @@ object LArray {
 
   def apply() = EmptyArray
 
-
-  import java.{lang=>jl}
+  import _root_.java.{lang=>jl}
 
   private[larray] def wrap[A:ClassTag](size:Long, m:Memory) : LArray[A] = {
     val tag = implicitly[ClassTag[A]]
@@ -351,8 +350,7 @@ class LIntArray(val size: Long, private[larray] val m:Memory)(implicit alloc: Me
   extends LArray[Int]
   with UnsafeArray[Int]
 {
-  def this(size: Long)(implicit alloc: MemoryAllocator) = this(size, alloc.allocate(size << 2))
-
+  def this(size: Long)(implicit alloc: MemoryAllocator = MemoryAllocator.default) = this(size, alloc.allocate(size << 2))
   import UnsafeUtil.unsafe
 
   def apply(i: Long): Int = {

src/main/scala/xerial/larray/Logger.scala

@@ -0,0 +1,24 @@
+//--------------------------------------
+//
+// Logger.scala
+// Since: 2013/03/22 2:32
+//
+//--------------------------------------
+
+package xerial.larray
+
+/**
+ * Logger wrapper for using [[xerial.core.log.Logger]] in Java
+ * @author Taro L. Saito
+ */
+class Logger(cl:Class[_]) {
+  private val _logger = xerial.core.log.LoggerFactory(cl)
+
+  def trace(m:String) { _logger.trace(m) }
+  def debug(m:String) { _logger.debug(m) }
+  def info(m:String) { _logger.info(m) }
+  def warn(m:String) { _logger.warn(m) }
+  def error(m:String) { _logger.error(m) }
+  def fatal(m:String) { _logger.fatal(m) }
+
+}

src/test/java/xerial/larray/japi/JLArrayTest.java

@@ -0,0 +1,28 @@
+package xerial.larray.japi;
+
+import junit.framework.Assert;
+import org.junit.Test;
+import xerial.larray.LIntArray;
+import xerial.larray.Logger;
+
+/**
+ * @author Taro L. Saito
+ */
+public class JLArrayTest {
+
+    Logger _logger = new Logger(this.getClass());
+
+    @Test
+    public void constructor() {
+
+        LIntArray l = LArray.newLIntArray(5L);
+        for (long i = 0; i < l.size(); ++i) l.update(i, (int) i * 2);
+        _logger.debug(l.mkString(", "));
+        for (long i = 0; i < l.size(); ++i) l.update(i, (int) (i * i));
+        _logger.debug(l.mkString(", "));
+
+        Assert.assertEquals(5L, l.size());
+
+        l.free();
+    }
+}

src/test/scala/xerial/larray/LArraySpec.scala

@@ -9,7 +9,6 @@ package xerial.larray
 
 import org.scalatest.matchers.{MustMatchers, ShouldMatchers}
 import xerial.core.util.Timer
-import xerial.core.log.Logger
 import org.scalatest._
 import java.io.ByteArrayOutputStream
 import scala.language.implicitConversions
@@ -19,7 +18,7 @@ import xerial.core.io.Resource
 /**
  * @author leo
  */
-trait LArraySpec extends WordSpec with ShouldMatchers with MustMatchers with GivenWhenThen with OptionValues with Resource with Timer with Logger
+trait LArraySpec extends WordSpec with ShouldMatchers with MustMatchers with GivenWhenThen with OptionValues with Resource with Timer with xerial.core.log.Logger
  with BeforeAndAfterAll with BeforeAndAfter with BeforeAndAfterEach {
 
   implicit def toTag(t:String) = Tag(t)