package org.apache.velocity.runtime;
/*
* 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.
*/
import org.apache.velocity.runtime.parser.Parser;
import org.apache.velocity.util.SimplePool;
import org.apache.velocity.runtime.parser.CharStream;
/**
* This wraps the original parser SimplePool class. It also handles
* instantiating ad-hoc parsers if none are available.
*
* @author <a href="mailto:sergek@lokitech.com">Serge Knystautas</a>
* @version $Id: RuntimeInstance.java 384374 2006-03-08 23:19:30Z nbubna $
* @since 1.5
*/
public class ParserPoolImpl implements ParserPool {
SimplePool pool = null;
int max = RuntimeConstants.NUMBER_OF_PARSERS;
/**
* Create the underlying "pool".
* @param rsvc
*/
public void initialize(RuntimeServices rsvc)
{
max = rsvc.getInt(RuntimeConstants.PARSER_POOL_SIZE, RuntimeConstants.NUMBER_OF_PARSERS);
pool = new SimplePool(max);
for (int i = 0; i < max; i++)
{
pool.put(rsvc.createNewParser());
}
if (rsvc.getLog().isDebugEnabled())
{
rsvc.getLog().debug("Created '" + max + "' parsers.");
}
}
/**
* Call the wrapped pool. If none are available, it will create a new
* temporary one.
* @return A parser Object.
*/
public Parser get()
{
return (Parser) pool.get();
}
/**
* Call the wrapped pool.
* @param parser
*/
public void put(Parser parser)
{
parser.ReInit((CharStream) null);
pool.put(parser);
}
}