/*
* 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.PrintWriter;
/**
* The interface that all SSI commands ( SSIEcho, SSIInclude, ...) must implement.
*/
public interface SSICommand {
/**
* Write the output of the command to the writer.
*
* @param ssiMediator the ssi mediator
* @param commandName the name of the actual command ( ie. echo )
* @param paramNames The parameter names
* @param paramValues The parameter values
* @param writer the writer to output to
*
* @return the most current modified date resulting from any SSI commands
*
* @throws SSIStopProcessingException if SSI processing should be aborted
*/
long process(SSIMediator ssiMediator, String commandName, String[] paramNames, String[] paramValues,
PrintWriter writer) throws SSIStopProcessingException;
}