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SimpleLogger.java
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163 lines (147 loc) · 4.44 KB
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/*
* Copyright 2019-2020 OpenFeign Contributors
*
* 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 feign.logging;
import feign.support.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
/**
* Simple Logger implementation backed by SLF4J.
*/
public class SimpleLogger extends AbstractLogger {
private final Logger logger;
public static Builder builder() {
return new Builder();
}
/**
* Creates a new Simple Logger.
*
* @param enabled if logging should be enabled.
* @param requestEnabled if request logging should be enabled.
* @param responseEnabled if response logging should be enabled.
* @param headersEnabled if header logging should be enabled.
*/
private SimpleLogger(boolean enabled, boolean requestEnabled, boolean responseEnabled,
boolean headersEnabled) {
this(SimpleLogger.class.getName(), enabled, requestEnabled, responseEnabled, headersEnabled);
}
/**
* Creates a new Simple Logger.
*
* @param name of the Logger.
* @param enabled if logging should be enabled.
* @param requestEnabled if request logging should be enabled.
* @param responseEnabled if response logging should be enabled.
* @param headersEnabled if header logging should be enabled.
*/
private SimpleLogger(String name, boolean enabled, boolean requestEnabled,
boolean responseEnabled,
boolean headersEnabled) {
super(enabled, requestEnabled, responseEnabled, headersEnabled);
this.logger = LoggerFactory.getLogger(name);
}
/**
* Log the Message. Places the Method name on the MDC.
*
* @param methodName for context.
* @param message to log.
*/
@Override
protected void log(String methodName, String message) {
MDC.put("method", methodName);
try {
this.logger.info(String.format("%s() %s", methodName, message));
} finally {
MDC.clear();
}
}
/**
* Simple Logger Builder.
*/
public static class Builder {
private boolean enabled = false;
private boolean requestEnabled = false;
private boolean responseEnabled = false;
private boolean headersEnabled = false;
private String name;
/**
* Set the name of the Logger.
*
* @param name for the logger.
* @return the builder chain.
*/
public Builder setName(String name) {
this.name = name;
return this;
}
/**
* Set if Logging should be enabled.
*
* @param enabled flag.
* @return the builder chain.
*/
public Builder setEnabled(boolean enabled) {
this.enabled = enabled;
return this;
}
/**
* Set if Request information should be logged.
*
* @param requestEnabled flag.
* @return the builder chain.
*/
public Builder setRequestEnabled(boolean requestEnabled) {
this.enabled = true;
this.requestEnabled = requestEnabled;
return this;
}
/**
* Set if Response information should be logged.
*
* @param responseEnabled flag.
* @return the builder chain.
*/
public Builder setResponseEnabled(boolean responseEnabled) {
this.enabled = true;
this.responseEnabled = responseEnabled;
return this;
}
/**
* Set if Header information should be logged.
*
* @param headersEnabled flag.
* @return the builder chain.
*/
public Builder setHeadersEnabled(boolean headersEnabled) {
this.enabled = true;
this.headersEnabled = headersEnabled;
return this;
}
/**
* Build a new Simple Logger instance.
*
* @return a new SimpleLogger instance.
*/
public SimpleLogger build() {
if (StringUtils.isNotEmpty(this.name)) {
return new SimpleLogger(this.name, this.enabled, this.requestEnabled, this.responseEnabled,
this.headersEnabled);
}
return new SimpleLogger(this.enabled, this.requestEnabled, this.responseEnabled,
this.headersEnabled);
}
}
}