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From 72049532fa289d0f5664e9b1a7fd19fd514e595f Mon Sep 17 00:00:00 2001
From: Gunnar Morling <gunnar.morling@googlemail.com>
Date: Wed, 31 Aug 2016 15:28:25 +0200
Subject: [PATCH] HV-1091 Using iterative instead of recursive approach for
message parsing
---
.../parser/BeginState.java | 12 +--
.../messageinterpolation/parser/ELState.java | 10 ---
.../parser/EscapedState.java | 9 --
.../parser/InterpolationTermState.java | 12 ---
.../parser/MessageState.java | 11 ---
.../parser/ParserState.java | 2 -
.../parser/TokenCollector.java | 16 ++--
.../validator/bugs/TooBigMessageTest.java | 90 +++++++++++++++++++
.../TokenIteratorTest.java | 8 +-
9 files changed, 103 insertions(+), 67 deletions(-)
create mode 100644 engine/src/test/java/org/hibernate/validator/bugs/TooBigMessageTest.java
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/BeginState.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/BeginState.java
index 678f16e46..5aee73b9f 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/BeginState.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/BeginState.java
@@ -18,11 +18,7 @@
@Override
public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFormatException {
- }
-
- @Override
- public void start(TokenCollector tokenCollector) throws MessageDescriptorFormatException {
- tokenCollector.next();
+ tokenCollector.terminateToken();
}
@Override
@@ -30,7 +26,6 @@ public void handleNonMetaCharacter(char character, TokenCollector tokenCollector
throws MessageDescriptorFormatException {
tokenCollector.appendToToken( character );
tokenCollector.transitionState( new MessageState() );
- tokenCollector.next();
}
@Override
@@ -43,7 +38,6 @@ public void handleBeginTerm(char character, TokenCollector tokenCollector) throw
tokenCollector.makeParameterToken();
}
tokenCollector.transitionState( new InterpolationTermState() );
- tokenCollector.next();
}
@Override
@@ -56,7 +50,6 @@ public void handleEscapeCharacter(char character, TokenCollector tokenCollector)
throws MessageDescriptorFormatException {
tokenCollector.appendToToken( character );
tokenCollector.transitionState( new EscapedState( this ) );
- tokenCollector.next();
}
@Override
@@ -68,9 +61,6 @@ public void handleELDesignator(char character, TokenCollector tokenCollector)
else {
ParserState state = new ELState();
tokenCollector.transitionState( state );
- tokenCollector.next();
}
}
}
-
-
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ELState.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ELState.java
index ce7df402f..569ea1e2e 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ELState.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ELState.java
@@ -15,11 +15,6 @@
public class ELState implements ParserState {
private static final Log log = LoggerFactory.make();
- @Override
- public void start(TokenCollector tokenCollector) {
- throw new IllegalStateException( "Parsing of message descriptor cannot start in this state" );
- }
-
@Override
public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFormatException {
tokenCollector.appendToToken( TokenCollector.EL_DESIGNATOR );
@@ -33,7 +28,6 @@ public void handleNonMetaCharacter(char character, TokenCollector tokenCollector
tokenCollector.appendToToken( character );
tokenCollector.terminateToken();
tokenCollector.transitionState( new BeginState() );
- tokenCollector.next();
}
@Override
@@ -44,7 +38,6 @@ public void handleBeginTerm(char character, TokenCollector tokenCollector) throw
tokenCollector.appendToToken( character );
tokenCollector.makeELToken();
tokenCollector.transitionState( new InterpolationTermState() );
- tokenCollector.next();
}
@Override
@@ -59,7 +52,6 @@ public void handleEndTerm(char character, TokenCollector tokenCollector) throws
public void handleEscapeCharacter(char character, TokenCollector tokenCollector)
throws MessageDescriptorFormatException {
tokenCollector.transitionState( new EscapedState( this ) );
- tokenCollector.next();
}
@Override
@@ -68,5 +60,3 @@ public void handleELDesignator(char character, TokenCollector tokenCollector)
handleNonMetaCharacter( character, tokenCollector );
}
}
-
-
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/EscapedState.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/EscapedState.java
index 901acff4f..f44242dd1 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/EscapedState.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/EscapedState.java
@@ -16,11 +16,6 @@ public EscapedState(ParserState previousState) {
this.previousState = previousState;
}
- @Override
- public void start(TokenCollector tokenCollector) {
- throw new IllegalStateException( "Parsing of message descriptor cannot start in this state" );
- }
-
@Override
public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFormatException {
tokenCollector.terminateToken();
@@ -58,9 +53,5 @@ private void handleEscapedCharacter(char character, TokenCollector tokenCollecto
throws MessageDescriptorFormatException {
tokenCollector.appendToToken( character );
tokenCollector.transitionState( previousState );
- tokenCollector.next();
}
}
-
-
-
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/InterpolationTermState.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/InterpolationTermState.java
index f921113f9..11c974373 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/InterpolationTermState.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/InterpolationTermState.java
@@ -15,11 +15,6 @@
public class InterpolationTermState implements ParserState {
private static final Log log = LoggerFactory.make();
- @Override
- public void start(TokenCollector tokenCollector) {
- throw new IllegalStateException( "Parsing of message descriptor cannot start in this state" );
- }
-
@Override
public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFormatException {
throw log.getNonTerminatedParameterException(
@@ -32,7 +27,6 @@ public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFor
public void handleNonMetaCharacter(char character, TokenCollector tokenCollector)
throws MessageDescriptorFormatException {
tokenCollector.appendToToken( character );
- tokenCollector.next();
}
@Override
@@ -46,7 +40,6 @@ public void handleEndTerm(char character, TokenCollector tokenCollector) throws
tokenCollector.terminateToken();
BeginState beginState = new BeginState();
tokenCollector.transitionState( beginState );
- tokenCollector.next();
}
@Override
@@ -55,16 +48,11 @@ public void handleEscapeCharacter(char character, TokenCollector tokenCollector)
tokenCollector.appendToToken( character );
ParserState state = new EscapedState( this );
tokenCollector.transitionState( state );
- tokenCollector.next();
-
}
@Override
public void handleELDesignator(char character, TokenCollector tokenCollector)
throws MessageDescriptorFormatException {
tokenCollector.appendToToken( character );
- tokenCollector.next();
}
}
-
-
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/MessageState.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/MessageState.java
index bac9c7e46..37cd23503 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/MessageState.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/MessageState.java
@@ -16,11 +16,6 @@
public class MessageState implements ParserState {
private static final Log log = LoggerFactory.make();
- @Override
- public void start(TokenCollector tokenCollector) {
- throw new IllegalStateException( "The parsing of the message descriptor cannot start in this state." );
- }
-
@Override
public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFormatException {
tokenCollector.terminateToken();
@@ -30,7 +25,6 @@ public void terminate(TokenCollector tokenCollector) throws MessageDescriptorFor
public void handleNonMetaCharacter(char character, TokenCollector tokenCollector)
throws MessageDescriptorFormatException {
tokenCollector.appendToToken( character );
- tokenCollector.next();
}
@Override
@@ -42,7 +36,6 @@ public void handleBeginTerm(char character, TokenCollector tokenCollector) throw
tokenCollector.makeParameterToken();
}
tokenCollector.transitionState( new InterpolationTermState() );
- tokenCollector.next();
}
@Override
@@ -59,7 +52,6 @@ public void handleEscapeCharacter(char character, TokenCollector tokenCollector)
tokenCollector.appendToToken( character );
tokenCollector.transitionState( new EscapedState( this ) );
- tokenCollector.next();
}
@Override
@@ -70,9 +62,6 @@ public void handleELDesignator(char character, TokenCollector tokenCollector)
}
else {
tokenCollector.transitionState( new ELState() );
- tokenCollector.next();
}
}
}
-
-
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ParserState.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ParserState.java
index a48a48f2b..64317de46 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ParserState.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/ParserState.java
@@ -13,7 +13,6 @@
* @author Hardy Ferentschik
*/
public interface ParserState {
- void start(TokenCollector tokenCollector) throws MessageDescriptorFormatException;
void terminate(TokenCollector tokenCollector) throws MessageDescriptorFormatException;
@@ -27,4 +26,3 @@
void handleELDesignator(char character, TokenCollector tokenCollector) throws MessageDescriptorFormatException;
}
-
diff --git a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/TokenCollector.java b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/TokenCollector.java
index 1443eee7f..ffce7bb68 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/TokenCollector.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/engine/messageinterpolation/parser/TokenCollector.java
@@ -6,13 +6,13 @@
*/
package org.hibernate.validator.internal.engine.messageinterpolation.parser;
+import static org.hibernate.validator.internal.util.CollectionHelper.newArrayList;
+
import java.util.Collections;
import java.util.List;
import org.hibernate.validator.internal.engine.messageinterpolation.InterpolationTermType;
-import static org.hibernate.validator.internal.util.CollectionHelper.newArrayList;
-
/**
* Used to creates a list of tokens from a message descriptor.
*
@@ -28,7 +28,7 @@
private final String originalMessageDescriptor;
private final InterpolationTermType interpolationTermType;
- private List<Token> tokenList;
+ private final List<Token> tokenList;
private ParserState currentParserState;
private int currentPosition;
private Token currentToken;
@@ -69,10 +69,11 @@ public void makeELToken() {
currentToken.makeELToken();
}
- public void next() throws MessageDescriptorFormatException {
+ private void next() throws MessageDescriptorFormatException {
if ( currentPosition == originalMessageDescriptor.length() ) {
// give the current context the chance to complete
currentParserState.terminate( this );
+ currentPosition++;
return;
}
char currentCharacter = originalMessageDescriptor.charAt( currentPosition );
@@ -98,12 +99,12 @@ public void next() throws MessageDescriptorFormatException {
currentParserState.handleNonMetaCharacter( currentCharacter, this );
}
}
- // make sure the last token is terminated
- terminateToken();
}
public void parse() throws MessageDescriptorFormatException {
- currentParserState.start( this );
+ while ( currentPosition <= originalMessageDescriptor.length() ) {
+ next();
+ }
}
public void transitionState(ParserState newState) {
@@ -122,4 +123,3 @@ public String getOriginalMessageDescriptor() {
return originalMessageDescriptor;
}
}
-
diff --git a/engine/src/test/java/org/hibernate/validator/bugs/TooBigMessageTest.java b/engine/src/test/java/org/hibernate/validator/bugs/TooBigMessageTest.java
new file mode 100644
index 000000000..4eb8ffc18
--- /dev/null
+++ b/engine/src/test/java/org/hibernate/validator/bugs/TooBigMessageTest.java
@@ -0,0 +1,90 @@
+/*
+ * Hibernate Validator, declare and validate application constraints
+ *
+ * License: Apache License, Version 2.0
+ * See the license.txt file in the root directory or <http://www.apache.org/licenses/LICENSE-2.0>.
+ */
+package org.hibernate.validator.bugs;
+
+import static org.hibernate.validator.testutil.ConstraintViolationAssert.assertCorrectConstraintViolationMessages;
+import static org.hibernate.validator.testutil.ConstraintViolationAssert.assertNumberOfViolations;
+
+import java.util.Set;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.Validator;
+import javax.validation.constraints.NotNull;
+
+import org.hibernate.validator.testutil.TestForIssue;
+import org.hibernate.validator.testutils.ValidatorUtil;
+import org.junit.Test;
+
+/**
+ * Ensure large error messages can be interpolated.
+ *
+ * @author Gunnar Morling
+ */
+public class TooBigMessageTest {
+
+ /**
+ * Large enough to trigger a stack overflow with the recursive scheme, assuming default settings
+ */
+ private static final String LARGE_MESSAGE =
+ "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
+ + "12345678901234567890123456789012345678901234567890123456789012345678901234567890";
+
+ @Test
+ @TestForIssue(jiraKey = "HV-1091")
+ public void largeMessageCanBeInterpolated() {
+ Validator validator = ValidatorUtil.getValidator();
+ GoldFish fish = new GoldFish();
+
+ Set<ConstraintViolation<GoldFish>> constraintViolations = validator.validate( fish );
+ assertNumberOfViolations( constraintViolations, 1 );
+ assertCorrectConstraintViolationMessages( constraintViolations, LARGE_MESSAGE );
+ }
+
+ private static class GoldFish {
+
+ @NotNull(message = LARGE_MESSAGE)
+ String name;
+ }
+}
diff --git a/engine/src/test/java/org/hibernate/validator/test/internal/engine/messageinterpolation/TokenIteratorTest.java b/engine/src/test/java/org/hibernate/validator/test/internal/engine/messageinterpolation/TokenIteratorTest.java
index a63e1996a..281f3bccf 100644
--- a/engine/src/test/java/org/hibernate/validator/test/internal/engine/messageinterpolation/TokenIteratorTest.java
+++ b/engine/src/test/java/org/hibernate/validator/test/internal/engine/messageinterpolation/TokenIteratorTest.java
@@ -6,15 +6,15 @@
*/
package org.hibernate.validator.test.internal.engine.messageinterpolation;
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertTrue;
+
import org.hibernate.validator.internal.engine.messageinterpolation.InterpolationTermType;
import org.hibernate.validator.internal.engine.messageinterpolation.parser.TokenCollector;
import org.hibernate.validator.internal.engine.messageinterpolation.parser.TokenIterator;
import org.testng.annotations.Test;
-import static org.testng.Assert.assertEquals;
-import static org.testng.Assert.assertFalse;
-import static org.testng.Assert.assertTrue;
-
/**
* Tests for {@code TokenIterator}.
*
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