Tomcat example source code file (SSIExternalResolver.java)

This example Tomcat source code file (SSIExternalResolver.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Tomcat tags/keywords

date, date, io, ioexception, ioexception, ssiexternalresolver, ssiexternalresolver, string, string, throwable, util

The Tomcat SSIExternalResolver.java source code

/*
 * 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.util.Collection;
import java.util.Date;
/**
 * Interface used by SSIMediator to talk to the 'outside world' ( usually a
 * servlet )
 * 
 * @author Dan Sandberg
 * @version $Revision: 531303 $, $Date: 2007-04-23 02:24:01 +0200 (lun., 23 avr. 2007) $
 */
public interface SSIExternalResolver {
    /**
     * Adds any external variables to the variableNames collection.
     * 
     * @param variableNames
     *            the collection to add to
     */
    public void addVariableNames(Collection variableNames);


    public String getVariableValue(String name);


    /**
     * Set the named variable to the specified value. If value is null, then
     * the variable will be removed ( ie. a call to getVariableValue will
     * return null )
     * 
     * @param name
     *            of the variable
     * @param value
     *            of the variable
     */
    public void setVariableValue(String name, String value);


    /**
     * Returns the current date. This is useful for putting the SSI stuff in a
     * regression test. Since you can make the current date a constant, it
     * makes testing easier since the output won't change.
     * 
     * @return the data
     */
    public Date getCurrentDate();


    public long getFileSize(String path, boolean virtual) throws IOException;


    public long getFileLastModified(String path, boolean virtual)
            throws IOException;


    public String getFileText(String path, boolean virtual) throws IOException;


    public void log(String message, Throwable throwable);
}