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Commit7150c26

Browse files
author
zhourenjian
committed
Do not transmit a field over Simple RPC if field is not modified inside #ajaxRun
1 parent6d04801 commit7150c26

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3 files changed

+346
-3
lines changed

3 files changed

+346
-3
lines changed
Lines changed: 28 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,28 @@
1+
/*******************************************************************************
2+
* Copyright (c) 2007 java2script.org and others.
3+
* All rights reserved. This program and the accompanying materials
4+
* are made available under the terms of the Eclipse Public License v1.0
5+
* which accompanies this distribution, and is available at
6+
* http://www.eclipse.org/legal/epl-v10.html
7+
*
8+
* Contributors:
9+
* Zhou Renjian - initial API and implementation
10+
*******************************************************************************/
11+
12+
packagenet.sf.j2s.ajax;
13+
14+
/**
15+
* @author zhou renjian
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*
17+
* 2007-06-10
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*/
19+
publicinterfaceSimpleFieldFilter {
20+
21+
/**
22+
* Filter the fields to be serialized or not.
23+
* @param field
24+
* @return true for to be ignored and false for to be serialzed
25+
*/
26+
publicbooleanfilter(Stringfield);
27+
28+
}

‎sources/net.sf.j2s.ajax/ajaxrpc/net/sf/j2s/ajax/SimpleRPCHttpServlet.java‎

Lines changed: 135 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -16,8 +16,11 @@
1616
importjava.io.InputStream;
1717
importjava.io.PrintWriter;
1818
importjava.lang.reflect.Constructor;
19+
importjava.lang.reflect.Field;
1920
importjava.lang.reflect.InvocationTargetException;
21+
importjava.lang.reflect.Modifier;
2022
importjava.net.URLDecoder;
23+
importjava.util.Arrays;
2124
importjava.util.Date;
2225
importjava.util.Enumeration;
2326
importjava.util.HashSet;
@@ -265,8 +268,29 @@ protected void doPost(HttpServletRequest req, HttpServletResponse resp)
265268
//resp.setCharacterEncoding("utf-8");
266269
PrintWriterwriter =resp.getWriter();
267270
runnable.deserialize(request);
271+
SimpleRPCRunnableclonedRunnable =null;
272+
try {
273+
clonedRunnable = (SimpleRPCRunnable)runnable.clone();
274+
}catch (CloneNotSupportedExceptione) {
275+
//e.printStackTrace();
276+
}
268277
runnable.ajaxRun();
269-
writer.write(runnable.serialize());
278+
finalString[]diffs =compareDiffs(runnable,clonedRunnable);
279+
Stringserialize =runnable.serialize(newSimpleFieldFilter() {
280+
281+
publicbooleanfilter(Stringfield) {
282+
if (diffs ==null ||diffs.length ==0)returntrue;
283+
for (inti =0;i <diffs.length;i++) {
284+
if (diffs[i].equals(field)) {
285+
returnfalse;
286+
}
287+
}
288+
returntrue;
289+
}
290+
291+
});
292+
293+
writer.write(serialize);
270294
}
271295

272296
protectedvoiddoGet(HttpServletRequestreq,HttpServletResponseresp)
@@ -311,8 +335,27 @@ protected void doGet(HttpServletRequest req, HttpServletResponse resp)
311335
return;
312336
}
313337
runnable.deserialize(request);
338+
SimpleRPCRunnableclonedRunnable =null;
339+
try {
340+
clonedRunnable = (SimpleRPCRunnable)runnable.clone();
341+
}catch (CloneNotSupportedExceptione) {
342+
//e.printStackTrace();
343+
}
314344
runnable.ajaxRun();
315-
Stringserialize =runnable.serialize();
345+
finalString[]diffs =compareDiffs(runnable,clonedRunnable);
346+
Stringserialize =runnable.serialize(newSimpleFieldFilter() {
347+
348+
publicbooleanfilter(Stringfield) {
349+
if (diffs ==null ||diffs.length ==0)returntrue;
350+
for (inti =0;i <diffs.length;i++) {
351+
if (diffs[i].equals(field)) {
352+
returnfalse;
353+
}
354+
}
355+
returntrue;
356+
}
357+
358+
});
316359

317360
if (isScriptReuest) {// cross site script response
318361
resp.setContentType("text/javascript");
@@ -461,4 +504,94 @@ private void cleanSession(HttpSession ses) {
461504
}
462505
}
463506

507+
protectedString[]compareDiffs(SimpleRPCRunnablerunnable1,SimpleRPCRunnablerunnable2) {
508+
SetdiffSet =newHashSet();
509+
SetfieldSet =newHashSet();
510+
Classclazz =runnable1.getClass();
511+
while(clazz !=null && !"net.sf.j2s.ajax.SimpleSerializable".equals(clazz.getName())) {
512+
Field[]fields =clazz.getDeclaredFields();
513+
for (inti =0;i <fields.length;i++) {
514+
fieldSet.add(fields[i]);
515+
}
516+
clazz =clazz.getSuperclass();
517+
}
518+
Field[]fields = (Field [])fieldSet.toArray(newField[0]);
519+
for (inti =0;i <fields.length;i++) {
520+
Fieldfield =fields[i];
521+
intmodifiers =field.getModifiers();
522+
if ((modifiers & (Modifier.PUBLIC |Modifier.PROTECTED)) !=0
523+
&& (modifiers &Modifier.TRANSIENT) ==0
524+
&& (modifiers &Modifier.STATIC) ==0) {
525+
Stringname =field.getName();
526+
Objectfield1 =null;
527+
try {
528+
field1 =field.get(runnable1);
529+
}catch (IllegalArgumentExceptione1) {
530+
//e1.printStackTrace();
531+
}catch (IllegalAccessExceptione1) {
532+
//e1.printStackTrace();
533+
}
534+
Objectfield2 =null;
535+
try {
536+
field2 =field.get(runnable2);
537+
}catch (IllegalArgumentExceptione) {
538+
//e.printStackTrace();
539+
}catch (IllegalAccessExceptione) {
540+
//e.printStackTrace();
541+
}
542+
System.out.println(field1.getClass().getName());
543+
if (field1 ==null) {
544+
if (field2 !=null) {
545+
diffSet.add(name);
546+
}
547+
}elseif (field1.getClass().getName().startsWith("[")) {
548+
Classtype =field.getType();
549+
if (type ==float[].class) {
550+
if (!Arrays.equals((float[])field1, (float[])field2)) {
551+
diffSet.add(name);
552+
}
553+
}elseif (type ==double[].class) {
554+
if (!Arrays.equals((double[])field1, (double[])field2)) {
555+
diffSet.add(name);
556+
}
557+
}elseif (type ==int[].class) {
558+
if (!Arrays.equals((int[])field1, (int[])field2)) {
559+
diffSet.add(name);
560+
}
561+
}elseif (type ==long[].class) {
562+
if (!Arrays.equals((long[])field1, (long[])field2)) {
563+
diffSet.add(name);
564+
}
565+
}elseif (type ==short[].class) {
566+
if (!Arrays.equals((short[])field1, (short[])field2)) {
567+
diffSet.add(name);
568+
}
569+
}elseif (type ==byte[].class) {
570+
if (!Arrays.equals((byte[])field1, (byte[])field2)) {
571+
diffSet.add(name);
572+
}
573+
}elseif (type ==char[].class) {
574+
if (!Arrays.equals((char[])field1, (char[])field2)) {
575+
diffSet.add(name);
576+
}
577+
}elseif (type ==boolean[].class) {
578+
if (!Arrays.equals((boolean[])field1, (boolean[])field2)) {
579+
diffSet.add(name);
580+
}
581+
}elseif (type ==String[].class) {
582+
if (!Arrays.equals((String[])field1, (String[])field2)) {
583+
diffSet.add(name);
584+
}
585+
}elseif (type ==Object[].class) {
586+
if (!Arrays.equals((Object[])field1, (Object[])field2)) {
587+
diffSet.add(name);
588+
}
589+
}
590+
}elseif (!field1.equals(field2)) {
591+
diffSet.add(name);
592+
}
593+
}
594+
}
595+
return (String [])diffSet.toArray(newString[diffSet.size()]);
596+
}
464597
}

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