/*
* Copyright (c) 2002-2018 Gargoyle Software Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gargoylesoftware.htmlunit;
import java.io.
Serializable;
import org.apache.commons.logging.
Log;
import org.apache.commons.logging.
LogFactory;
import com.gargoylesoftware.css.parser.
CSSErrorHandler;
import com.gargoylesoftware.css.parser.
CSSParseException;
/**
* HtmlUnit's default implementation of {@link CSSErrorHandler}, which logs all CSS problems.
*
* @author Daniel Gredler
* @author Ronald Brill
* @see SilentCssErrorHandler
*/
public class
DefaultCssErrorHandler implements
CSSErrorHandler,
Serializable {
/** Logging support. */
private static final
Log LOG =
LogFactory.
getLog(
DefaultCssErrorHandler.class);
/**
* {@inheritDoc}
*/
@
Override
public void
error(final
CSSParseException exception) {
LOG.
warn("CSS error: " +
buildMessage(
exception));
}
/**
* {@inheritDoc}
*/
@
Override
public void
fatalError(final
CSSParseException exception) {
LOG.
warn("CSS fatal error: " +
buildMessage(
exception));
}
/**
* {@inheritDoc}
*/
@
Override
public void
warning(final
CSSParseException exception) {
LOG.
warn("CSS warning: " +
buildMessage(
exception));
}
/**
* Builds a message for the specified CSS parsing exception.
* @param exception the CSS parsing exception to build a message for
* @return a message for the specified CSS parsing exception
*/
private static
String buildMessage(final
CSSParseException exception) {
final
String uri =
exception.
getURI();
final int
line =
exception.
getLineNumber();
final int
col =
exception.
getColumnNumber();
if (null ==
uri) {
return "[" +
line + ":" +
col + "] " +
exception.
getMessage();
}
return "'" +
uri + "' [" +
line + ":" +
col + "] " +
exception.
getMessage();
}
}