org.apache.catalina.ssi.SSIFlastmod Maven / Gradle / Ivy
/*
* 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.catalina.ssi;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import org.apache.catalina.util.DateTool;
import org.apache.catalina.util.Strftime;
/**
* Implements the Server-side #flastmod command
*
* @author Bip Thelin
* @author Paul Speed
* @author Dan Sandberg
* @author David Becker
* @version $Id: SSIFlastmod.java 987920 2010-08-22 15:34:34Z markt $
*/
public final class SSIFlastmod implements SSICommand {
/**
* @see SSICommand
*/
public long process(SSIMediator ssiMediator, String commandName,
String[] paramNames, String[] paramValues, PrintWriter writer) {
long lastModified = 0;
String configErrMsg = ssiMediator.getConfigErrMsg();
for (int i = 0; i < paramNames.length; i++) {
String paramName = paramNames[i];
String paramValue = paramValues[i];
String substitutedValue = ssiMediator
.substituteVariables(paramValue);
try {
if (paramName.equalsIgnoreCase("file")
|| paramName.equalsIgnoreCase("virtual")) {
boolean virtual = paramName.equalsIgnoreCase("virtual");
lastModified = ssiMediator.getFileLastModified(
substitutedValue, virtual);
Date date = new Date(lastModified);
String configTimeFmt = ssiMediator.getConfigTimeFmt();
writer.write(formatDate(date, configTimeFmt));
} else {
ssiMediator.log("#flastmod--Invalid attribute: "
+ paramName);
writer.write(configErrMsg);
}
} catch (IOException e) {
ssiMediator.log(
"#flastmod--Couldn't get last modified for file: "
+ substitutedValue, e);
writer.write(configErrMsg);
}
}
return lastModified;
}
protected String formatDate(Date date, String configTimeFmt) {
Strftime strftime = new Strftime(configTimeFmt, DateTool.LOCALE_US);
return strftime.format(date);
}
}