/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.camel.model;
import java.util.Map;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import org.apache.camel.Expression;
import org.apache.camel.LoggingLevel;
import org.apache.camel.Processor;
import org.apache.camel.processor.LogProcessor;
import org.apache.camel.spi.RouteContext;
import org.apache.camel.util.CamelContextHelper;
import org.apache.camel.util.CamelLogger;
import org.apache.camel.util.ObjectHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Represents an XML <log/> element
*
* @version
*/
@XmlRootElement(name = "log")
@XmlAccessorType(XmlAccessType.FIELD)
public class LogDefinition extends NoOutputDefinition<LogDefinition> {
@XmlTransient
private static final Logger LOG = LoggerFactory.getLogger(LogDefinition.class);
@XmlAttribute(required = true)
private String message;
@XmlAttribute
private LoggingLevel loggingLevel;
@XmlAttribute
private String logName;
@XmlAttribute
private String marker;
@XmlAttribute
private String loggerRef;
@XmlTransient
private Logger logger;
public LogDefinition() {
}
public LogDefinition(String message) {
this.message = message;
}
@Override
public String toString() {
return "Log[" + message + "]";
}
@Override
public String getLabel() {
return "log";
}
@Override
public String getShortName() {
return "log";
}
@Override
public Processor createProcessor(RouteContext routeContext) throws Exception {
ObjectHelper.notEmpty(message, "message", this);
// use simple language for the message string to give it more power
Expression exp = routeContext.getCamelContext().resolveLanguage("simple").createExpression(message);
// get logger explicitely set in the definition
Logger logger = this.getLogger();
// get logger which may be set in XML definition
if (logger == null && ObjectHelper.isNotEmpty(loggerRef)) {
logger = CamelContextHelper.mandatoryLookup(routeContext.getCamelContext(), loggerRef, Logger.class);
}
if (logger == null) {
// first - try to lookup single instance in the registry, just like LogComponent
Map<String, Logger> availableLoggers = routeContext.lookupByType(Logger.class);
if (availableLoggers.size() == 1) {
logger = availableLoggers.values().iterator().next();
LOG.debug("Using custom Logger: {}", logger);
} else if (availableLoggers.size() > 1) {
// we should log about this somewhere...
LOG.debug("More than one {} instance found in the registry. Falling back to create logger by name.", Logger.class.getName());
}
}
if (logger == null) {
String name = getLogName();
if (name == null) {
name = routeContext.getRoute().getId();
LOG.debug("The LogName is null. Falling back to create logger by using the route id {}.", name);
}
logger = LoggerFactory.getLogger(name);
}
// should be INFO by default
LoggingLevel level = getLoggingLevel() != null ? getLoggingLevel() : LoggingLevel.INFO;
CamelLogger camelLogger = new CamelLogger(logger, level, getMarker());
return new LogProcessor(exp, camelLogger);
}
@Override
public void addOutput(ProcessorDefinition<?> output) {
// add outputs on parent as this log does not support outputs
getParent().addOutput(output);
}
public LoggingLevel getLoggingLevel() {
return loggingLevel;
}
public void setLoggingLevel(LoggingLevel loggingLevel) {
this.loggingLevel = loggingLevel;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getLogName() {
return logName;
}
public void setLogName(String logName) {
this.logName = logName;
}
public String getMarker() {
return marker;
}
public void setMarker(String marker) {
this.marker = marker;
}
public String getLoggerRef() {
return loggerRef;
}
public void setLoggerRef(String loggerRef) {
this.loggerRef = loggerRef;
}
public Logger getLogger() {
return logger;
}
public void setLogger(Logger logger) {
this.logger = logger;
}
}