X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fscratch%2Forg%2Fsimantics%2Fdataboard%2Ftests%2FStringUTFTest.java;fp=bundles%2Forg.simantics.databoard%2Fscratch%2Forg%2Fsimantics%2Fdataboard%2Ftests%2FStringUTFTest.java;h=1a59ed3e2b7ded3c4fe219030b336200078a766b;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.databoard/scratch/org/simantics/databoard/tests/StringUTFTest.java b/bundles/org.simantics.databoard/scratch/org/simantics/databoard/tests/StringUTFTest.java
new file mode 100644
index 000000000..1a59ed3e2
--- /dev/null
+++ b/bundles/org.simantics.databoard/scratch/org/simantics/databoard/tests/StringUTFTest.java
@@ -0,0 +1,78 @@
+package org.simantics.databoard.tests;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.nio.charset.Charset;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.databoard.binding.StringBinding;
+
+/**
+ *
+ * @author Toni Kalajainen <toni.kalajainen@iki.fi>
+ */
+public class StringUTFTest {
+	
+	public static void main(String[] args) throws Exception {
+		
+		StringBinding b = Bindings.STRING;
+		int c = 10000;
+		String[] strs = new String[c];
+		for (int i=0; i<c; i++) strs[i] = (String) b.createRandom(i);
+		
+				
+		{
+			ByteArrayOutputStream baos = new ByteArrayOutputStream( 10*1024*1024 );
+			DataOutputStream dos = new DataOutputStream( baos );		
+			System.gc();
+			long x = System.nanoTime();
+			for (int i=0; i<c; i++) {
+				dos.writeUTF(strs[i]);
+			}
+			long y = System.nanoTime() - x;
+			System.out.println("DataOutputStream.writeUTF: "+y);
+
+			byte[] data = baos.toByteArray();
+			DataInputStream dis = new DataInputStream( new ByteArrayInputStream( data ) );
+			x = System.nanoTime();
+			for (int i=0; i<c; i++) {
+				dis.readUTF();
+			}
+			y = System.nanoTime() - x;
+			System.out.println("DataOutputStream.readUTF : "+y);
+		}
+		
+		{
+			Charset cs = Charset.forName("UTF8");
+			ByteArrayOutputStream baos = new ByteArrayOutputStream( 10*1024*1024 );
+			DataOutputStream dos = new DataOutputStream( baos );		
+			System.gc();
+			long x = System.nanoTime();
+			for (int i=0; i<c; i++) {
+				byte[] data = strs[i].getBytes(cs);
+				dos.writeInt(data.length);
+				dos.write(data);
+			}
+			long y = System.nanoTime() - x;
+			System.out.println("String#getBytes(cs)      : "+y);
+
+			
+			byte[] strData = new byte[1024];
+			byte[] data = baos.toByteArray();
+			DataInputStream dis = new DataInputStream( new ByteArrayInputStream( data ) );
+			x = System.nanoTime();
+			for (int i=0; i<c; i++) {
+				int len = dis.readInt();
+				dis.read(strData, 0, len);
+				new String(strData, cs);
+			}
+			y = System.nanoTime() - x;
+			System.out.println("new String(byte[], cs)   : "+y);
+		}
+		
+		
+	}
+
+}