package org.hibernate.validator.internal.engine.messageinterpolation.parser;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Token {
private static final Pattern ESCAPED_OPENING_CURLY_BRACE = Pattern.compile( "\\\\\\{" );
private static final Pattern ESCAPED_CLOSING_CURLY_BRACE = Pattern.compile( "\\\\\\}" );
private boolean isParameter;
private boolean isEL;
private boolean terminated;
private String value;
private StringBuilder builder;
public Token(String tokenStart) {
builder = new StringBuilder();
builder.append( tokenStart );
}
public Token(char tokenStart) {
this( String.valueOf( tokenStart ) );
}
public void append(char character) {
builder.append( character );
}
public void makeParameterToken() {
isParameter = true;
}
public void makeELToken() {
makeParameterToken();
isEL = true;
}
public void terminate() {
value = builder.toString();
if ( isEL ) {
Matcher matcher = ESCAPED_OPENING_CURLY_BRACE.matcher( value );
value = matcher.replaceAll( "{" );
matcher = ESCAPED_CLOSING_CURLY_BRACE.matcher( value );
value = matcher.replaceAll( "}" );
}
builder = null;
terminated = true;
}
public boolean isParameter() {
return isParameter;
}
public String getTokenValue() {
if ( !terminated ) {
throw new IllegalStateException( "Trying to retrieve token value for unterminated token" );
}
return value;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder( "Token{" );
sb.append( "value='" ).append( value ).append( '\'' );
sb.append( ", terminated=" ).append( terminated );
sb.append( ", isEL=" ).append( isEL );
sb.append( ", isParameter=" ).append( isParameter );
sb.append( '}' );
return sb.toString();
}
}