http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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.
 */

/* $Id: StreamCacheFactory.java 1364567 2012-07-23 10:21:23Z mehdi $ */

package org.apache.fop.pdf;

import java.io.IOException;


This class is serves as a factory from

/**
 * This class is serves as a factory from
 */
public final class StreamCacheFactory {

    private static StreamCacheFactory memoryInstance = new StreamCacheFactory();

    
Returns an instance of a StreamCacheFactory with the requested features.

Returns:StreamCacheFactory the requested factory
/**
     * Returns an instance of a StreamCacheFactory with the requested features.
     * @return StreamCacheFactory the requested factory
     */
    public static StreamCacheFactory getInstance() {
        return memoryInstance;
    }

    
Creates a new StreamCacheFactory.

Params:
  • cacheToFile – True if file shall be cached using a temporary file
/**
     * Creates a new StreamCacheFactory.
     * @param cacheToFile True if file shall be cached using a temporary file
     */
    private StreamCacheFactory() {
    }

    
Get the correct implementation (based on cacheToFile) of
StreamCache.

Throws:
  • IOException – if there is an IO error
Returns:a new StreamCache for caching streams
/**
     * Get the correct implementation (based on cacheToFile) of
     * StreamCache.
     * @throws IOException if there is an IO error
     * @return a new StreamCache for caching streams
     */
    public StreamCache createStreamCache() throws IOException {
        return new InMemoryStreamCache();
    }

    
Get the correct implementation (based on cacheToFile) of
StreamCache.

Params:
  • hintSize – a hint about the approximate expected size of the buffer
Throws:
Returns:a new StreamCache for caching streams
/**
     * Get the correct implementation (based on cacheToFile) of
     * StreamCache.
     * @param hintSize a hint about the approximate expected size of the buffer
     * @throws IOException if there is an IO error
     * @return a new StreamCache for caching streams
     */
    public StreamCache createStreamCache(int hintSize) throws IOException {
        return new InMemoryStreamCache(hintSize);
    }
}