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/**
* 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.cxf.interceptor;
import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.helpers.XMLUtils;
import org.apache.cxf.io.CachedOutputStream;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.service.model.InterfaceInfo;
/**
* A simple logging handler which outputs the bytes of the message to the
* Logger.
*/
public abstract class AbstractLoggingInterceptor extends AbstractPhaseInterceptor {
protected static final String BINARY_CONTENT_MESSAGE = "--- Binary Content ---";
private static final List BINARY_CONTENT_MEDIA_TYPES;
static {
BINARY_CONTENT_MEDIA_TYPES = new ArrayList();
BINARY_CONTENT_MEDIA_TYPES.add("application/octet-stream");
BINARY_CONTENT_MEDIA_TYPES.add("image/png");
BINARY_CONTENT_MEDIA_TYPES.add("image/jpeg");
BINARY_CONTENT_MEDIA_TYPES.add("image/gif");
}
protected int limit = 100 * 1024;
protected long threshold = -1;
protected PrintWriter writer;
protected boolean prettyLogging;
private boolean showBinaryContent;
public AbstractLoggingInterceptor(String phase) {
super(phase);
}
public AbstractLoggingInterceptor(String id, String phase) {
super(id, phase);
}
protected abstract Logger getLogger();
Logger getMessageLogger(Message message) {
EndpointInfo endpoint = message.getExchange().getEndpoint().getEndpointInfo();
if (endpoint.getService() == null) {
return getLogger();
}
Logger logger = endpoint.getProperty("MessageLogger", Logger.class);
if (logger == null) {
String serviceName = endpoint.getService().getName().getLocalPart();
InterfaceInfo iface = endpoint.getService().getInterface();
String portName = endpoint.getName().getLocalPart();
String portTypeName = iface.getName().getLocalPart();
String logName = "org.apache.cxf.services." + serviceName + "."
+ portName + "." + portTypeName;
logger = LogUtils.getL7dLogger(this.getClass(), null, logName);
endpoint.setProperty("MessageLogger", logger);
}
return logger;
}
public void setOutputLocation(String s) {
if (s == null || "".equals(s)) {
writer = null;
} else if ("".equals(s)) {
writer = new PrintWriter(System.out, true);
} else if ("".equals(s)) {
writer = new PrintWriter(System.err, true);
} else {
try {
URI uri = new URI(s);
File file = new File(uri);
writer = new PrintWriter(new FileWriter(file, true), true);
} catch (Exception ex) {
getLogger().log(Level.WARNING, "Error configuring log location " + s, ex);
}
}
}
public void setPrintWriter(PrintWriter w) {
writer = w;
}
public PrintWriter getPrintWriter() {
return writer;
}
public void setLimit(int lim) {
limit = lim;
}
public int getLimit() {
return limit;
}
public void setPrettyLogging(boolean flag) {
prettyLogging = flag;
}
public boolean isPrettyLogging() {
return prettyLogging;
}
public void setInMemThreshold(long t) {
threshold = t;
}
public long getInMemThreshold() {
return threshold;
}
protected void writePayload(StringBuilder builder, CachedOutputStream cos,
String encoding, String contentType)
throws Exception {
// Just transform the XML message when the cos has content
if (isPrettyLogging() && (contentType != null && contentType.indexOf("xml") >= 0
&& contentType.toLowerCase().indexOf("multipart/related") < 0) && cos.size() > 0) {
Transformer serializer = XMLUtils.newTransformer(2);
// Setup indenting to "pretty print"
serializer.setOutputProperty(OutputKeys.INDENT, "yes");
serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
StringWriter swriter = new StringWriter();
serializer.transform(new StreamSource(cos.getInputStream()), new StreamResult(swriter));
String result = swriter.toString();
if (result.length() < limit || limit == -1) {
builder.append(swriter.toString());
} else {
builder.append(swriter.toString().substring(0, limit));
}
} else {
if (StringUtils.isEmpty(encoding)) {
cos.writeCacheTo(builder, limit);
} else {
cos.writeCacheTo(builder, encoding, limit);
}
}
}
protected void writePayload(StringBuilder builder,
StringWriter stringWriter,
String contentType)
throws Exception {
// Just transform the XML message when the cos has content
if (isPrettyLogging()
&& contentType != null
&& contentType.indexOf("xml") >= 0
&& stringWriter.getBuffer().length() > 0) {
Transformer serializer = XMLUtils.newTransformer(2);
// Setup indenting to "pretty print"
serializer.setOutputProperty(OutputKeys.INDENT, "yes");
serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
StringWriter swriter = new StringWriter();
serializer.transform(new StreamSource(new StringReader(stringWriter.getBuffer().toString())),
new StreamResult(swriter));
String result = swriter.toString();
if (result.length() < limit || limit == -1) {
builder.append(swriter.toString());
} else {
builder.append(swriter.toString().substring(0, limit));
}
} else {
StringBuffer buffer = stringWriter.getBuffer();
if (buffer.length() > limit) {
builder.append(buffer.subSequence(0, limit));
} else {
builder.append(buffer);
}
}
}
/**
* Transform the string before display. The implementation in this class
* does nothing. Override this method if you wish to change the contents of the
* logged message before it is delivered to the output.
* For example, you can use this to mask out sensitive information.
* @param originalLogString the raw log message.
* @return transformed data
*/
protected String transform(String originalLogString) {
return originalLogString;
}
protected void log(Logger logger, String message) {
message = transform(message);
if (writer != null) {
writer.println(message);
// Flushing the writer to make sure the message is written
writer.flush();
} else if (logger.isLoggable(Level.INFO)) {
LogRecord lr = new LogRecord(Level.INFO, message);
lr.setSourceClassName(logger.getName());
lr.setSourceMethodName(null);
lr.setLoggerName(logger.getName());
logger.log(lr);
}
}
public void setShowBinaryContent(boolean showBinaryContent) {
this.showBinaryContent = showBinaryContent;
}
public boolean isShowBinaryContent() {
return showBinaryContent;
}
public boolean isBinaryContent(String contentType) {
return contentType != null && BINARY_CONTENT_MEDIA_TYPES.contains(contentType);
}
}
