/*
* Copyright 2002-2012 the original author or authors.
*
* 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 org.springframework.util;
import java.io.
Writer;
import org.apache.commons.logging.
Log;
/**
* {@code java.io.Writer} adapter for a Commons Logging {@code Log}.
*
* @author Juergen Hoeller
* @since 2.5.1
*/
public class
CommonsLogWriter extends
Writer {
private final
Log logger;
private final
StringBuilder buffer = new
StringBuilder();
/**
* Create a new CommonsLogWriter for the given Commons Logging logger.
* @param logger the Commons Logging logger to write to
*/
public
CommonsLogWriter(
Log logger) {
Assert.
notNull(
logger, "Logger must not be null");
this.
logger =
logger;
}
public void
write(char
ch) {
if (
ch == '\n' && this.
buffer.
length() > 0) {
this.
logger.
debug(this.
buffer.
toString());
this.
buffer.
setLength(0);
}
else {
this.
buffer.
append(
ch);
}
}
@
Override
public void
write(char[]
buffer, int
offset, int
length) {
for (int
i = 0;
i <
length;
i++) {
char
ch =
buffer[
offset +
i];
if (
ch == '\n' && this.
buffer.
length() > 0) {
this.
logger.
debug(this.
buffer.
toString());
this.
buffer.
setLength(0);
}
else {
this.
buffer.
append(
ch);
}
}
}
@
Override
public void
flush() {
}
@
Override
public void
close() {
}
}