From b77609986bd15f01416a6543a1915659e1a2150e Mon Sep 17 00:00:00 2001
From: Sven Robertz <sven@cs.lth.se>
Date: Tue, 9 Jul 2013 18:10:10 +0200
Subject: [PATCH] more cleanup and doc
---
examples/dynamic/README | 1 +
examples/dynamic/TestLabcommGen.java | 77 ++++++++++++++++++----------
2 files changed, 51 insertions(+), 27 deletions(-)
diff --git a/examples/dynamic/README b/examples/dynamic/README
index 2895d73..5a3f11e 100644
--- a/examples/dynamic/README
+++ b/examples/dynamic/README
@@ -31,3 +31,4 @@ bar:handler(int value) {
System.out.println(value);
}###
+Note that parameters differ: the value for foo is an object but for bar it is a primitive type (int) value.
diff --git a/examples/dynamic/TestLabcommGen.java b/examples/dynamic/TestLabcommGen.java
index c5b852a..6c975da 100644
--- a/examples/dynamic/TestLabcommGen.java
+++ b/examples/dynamic/TestLabcommGen.java
@@ -1,4 +1,5 @@
import java.io.ByteArrayInputStream;
+import java.io.EOFException;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
@@ -28,6 +29,7 @@ import beaver.Parser.Exception;
public class TestLabcommGen {
private static final String SAMPLE_NAME_FOO = "foo";
+ private static final String SAMPLE_NAME_BAR = "bar";
static class HandlerSrc {
private String sampleName;
@@ -63,12 +65,12 @@ public class TestLabcommGen {
System.out.println("*** Generated handler source:");
handlers.keySet();
-
+
for (String n : handlers.keySet()) {
System.out.println(n+":");
System.out.println(handlers.get(n));
}
-
+
InRAMCompiler irc = generateCode(labcommStr, handlers);
@@ -78,19 +80,19 @@ public class TestLabcommGen {
String tmpFile = args[2];
System.out.println("*** Testing writing and reading file "+tmpFile);
- encodeTest(irc, SAMPLE_NAME_FOO, tmpFile);
- decodeTest(irc, SAMPLE_NAME_FOO, tmpFile);
+ encodeTest(irc, tmpFile);
+ decodeTest(irc, tmpFile, SAMPLE_NAME_FOO, SAMPLE_NAME_BAR);
}
}
public static void generateHandlers(String srcStr, HashMap<String,String> handlers) {
int pos = 0;
while(pos < srcStr.length()) {
-// System.out.println("--------");
+ // System.out.println("--------");
int nameEnd = srcStr.indexOf(':', pos);
if(nameEnd <0) break;
String name = srcStr.substring(pos,nameEnd);
-// System.out.println("Name="+name);
+ // System.out.println("Name="+name);
pos=nameEnd+1;
String par = "";
@@ -98,7 +100,7 @@ public class TestLabcommGen {
if(srcStr.startsWith(handler_decl, pos)) {
int endPar = srcStr.indexOf(')', pos);
par = srcStr.substring(pos+handler_decl.length(), endPar);
-// System.out.println("param="+par);
+ // System.out.println("param="+par);
pos = endPar+1;
} else {
System.out.println("expeced handler decl:\n"+srcStr.substring(pos));
@@ -106,14 +108,14 @@ public class TestLabcommGen {
int bodyEnd = srcStr.indexOf("}###", pos); // HERE BE DRAGONS! a bit brittle
String body = srcStr.substring(pos, bodyEnd+1);
pos = bodyEnd+5;
-// System.out.println("body:");
-// System.out.println(body);
+ // System.out.println("body:");
+ // System.out.println(body);
-// System.out.println("**** generates:");
+ // System.out.println("**** generates:");
HandlerSrc s = new HandlerSrc(name, par, body);
final String genSrc = s.getSrc();
-// System.out.println(genSrc);
+ // System.out.println(genSrc);
handlers.put(name,genSrc);
}
}
@@ -135,7 +137,7 @@ public class TestLabcommGen {
String srcStr = buf.toString().substring(0, len);
return srcStr;
}
-
+
private static String readLabcommDecl(String lcfile) {
FileReader fr;
int len=0;;
@@ -239,21 +241,28 @@ public class TestLabcommGen {
}
/** test method
*/
- private static void decodeTest(InRAMCompiler irc, String sampleName, String tmpFile) {
+ private static void decodeTest(InRAMCompiler irc, String tmpFile, String... sampleNames) {
try {
FileInputStream in = new FileInputStream(tmpFile);
LabCommDecoderChannel dec = new LabCommDecoderChannel(in);
+ for (String sampleName : sampleNames) {
+ System.out.println("registering handler for "+sampleName);
+ Class sampleClass = irc.load(sampleName);
+ Class handlerClass = irc.load("gen_"+sampleName+"Handler");
+ Class handlerInterface = irc.load(sampleName+"$Handler");
- Class fc = irc.load(sampleName);
- Class hc = irc.load("gen_"+sampleName+"Handler");
- Class hi = irc.load(sampleName+"$Handler");
+ Object handler = handlerClass.newInstance();
- Object h = hc.newInstance();
-
- Method reg = fc.getDeclaredMethod("register", LabCommDecoder.class, hi);
- reg.invoke(fc, dec, h);
+ Method reg = sampleClass.getDeclaredMethod("register", LabCommDecoder.class, handlerInterface);
+ reg.invoke(sampleClass, dec, handler);
+ }
- dec.runOne();
+ try{
+ System.out.println("*** decoding:");
+ dec.run();
+ } catch(EOFException e) {
+ System.out.println("*** reached EOF ***");
+ }
in.close();
} catch (Throwable e) {
e.printStackTrace();
@@ -262,24 +271,38 @@ public class TestLabcommGen {
}
/** test encoding
*/
- private static void encodeTest(InRAMCompiler irc, String sampleName, String tmpFile) {
+ private static void encodeTest(InRAMCompiler irc, String tmpFile) {
try {
- Class fc = irc.load(sampleName);
+ Class fc = irc.load(SAMPLE_NAME_FOO);
+ Class bc = irc.load(SAMPLE_NAME_BAR);
+
+ /* create sample class and instance objects */
Object f = fc.newInstance();
+
Field x = fc.getDeclaredField("x");
Field y = fc.getDeclaredField("y");
Field z = fc.getDeclaredField("z");
x.setInt(f, 10);
y.setInt(f, 11);
z.setInt(f, 12);
+
FileOutputStream out = new FileOutputStream(tmpFile);
LabCommEncoderChannel enc = new LabCommEncoderChannel(out);
- Method reg = fc.getDeclaredMethod("register", LabCommEncoder.class);
- reg.invoke(fc, enc);
- Method doEncode = fc.getDeclaredMethod("encode", LabCommEncoder.class, fc);
- doEncode.invoke(fc, enc, f);
+ /* register and send foo */
+ Method regFoo = fc.getDeclaredMethod("register", LabCommEncoder.class);
+ regFoo.invoke(fc, enc);
+
+ Method doEncodeFoo = fc.getDeclaredMethod("encode", LabCommEncoder.class, fc);
+ doEncodeFoo.invoke(fc, enc, f);
+
+ /* register and send bar (NB! uses primitive type int) */
+ Method regBar = bc.getDeclaredMethod("register", LabCommEncoder.class);
+ regBar.invoke(bc, enc);
+
+ Method doEncodeBar = bc.getDeclaredMethod("encode", LabCommEncoder.class, Integer.TYPE);
+ doEncodeBar.invoke(bc, enc, 42);
out.close();
} catch (Throwable e) {
--
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