jodd.madvoc.interceptor.EchoInterceptor Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jodd-madvoc Show documentation
Show all versions of jodd-madvoc Show documentation
Jodd Madvoc is elegant web MVC framework that uses CoC and annotations in a pragmatic way to simplify web application development.
// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.madvoc.interceptor;
import jodd.madvoc.ActionRequest;
import jodd.util.StringUtil;
/**
* Simple interceptor that measures time and prints out information about invoked actions.
* User may inherit it and change the way message is printed.
*/
public class EchoInterceptor implements ActionInterceptor {
protected String prefixIn = "-----> ";
protected String prefixOut = "<----- ";
public void setPrefixIn(final String prefixIn) {
this.prefixIn = prefixIn;
}
public void setPrefixOut(final String prefixOut) {
this.prefixOut = prefixOut;
}
// ---------------------------------------------------------------- code
/**
* Measure action invocation time.
*/
@Override
public Object intercept(final ActionRequest actionRequest) throws Exception {
printBefore(actionRequest);
long startTime = System.currentTimeMillis();
Object result = null;
try {
result = actionRequest.invoke();
} catch (Exception ex) {
result = "";
throw ex;
} catch (Throwable th) {
result = "";
throw new Exception(th);
} finally {
long executionTime = System.currentTimeMillis() - startTime;
printAfter(actionRequest, executionTime, result);
}
return result;
}
/**
* Prints out the message. User can override this method and modify the way
* the message is printed.
*/
protected void printBefore(final ActionRequest request) {
StringBuilder message = new StringBuilder(prefixIn);
message.append(request.getActionPath()).append(" [").append(request.getActionRuntime().createActionString()).append(']');
out(message.toString());
}
/**
* Prints out the message. User can override this method and modify the way
* the message is printed.
*/
protected void printAfter(final ActionRequest request, final long executionTime, final Object result) {
StringBuilder message = new StringBuilder(prefixOut);
String resultString = StringUtil.toSafeString(result);
if (resultString.length() > 70) {
resultString = resultString.substring(0, 70);
resultString += "...";
}
message.append(request.getActionPath()).append(" (")
.append(resultString).append(") in ").append(executionTime)
.append("ms.");
out(message.toString());
}
/**
* Outputs info message. By default, it outputs it to console.
*/
protected void out(final String message) {
System.out.println(message);
}
}