/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * *   - Redistributions of source code must retain the above copyright *     notice, this list of conditions and the following disclaimer. * *   - Redistributions in binary form must reproduce the above copyright *     notice, this list of conditions and the following disclaimer in the *     documentation and/or other materials provided with the distribution. * *   - Neither the name of Sun Microsystems nor the names of its *     contributors may be used to endorse or promote products derived *     from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import java.beans.beancontext.*;import java.util.*;import java.io.*;/** * This class is the factory that delivers a word counting service. * The 3 methods defined in this class are the concrete implementations * of the BeanContextServiceProvider interface. For this demonstration, the primary * method of interest is getService(). The getService() methods returns a new * WordCount instance. It is called by the bean context when a nested * JavaBean requests the service. */public final class WordCountServiceProvider implements BeanContextServiceProvider {    public Object getService(BeanContextServices bcs,                              Object requestor,                             Class serviceClass,                             Object serviceSelector) {        // For this demo, we know that the cast from serviceSelector        // to File will always work.        final File document = (File)serviceSelector;        /*  Return an instance of the service. The service itself is          *  the WordCount interface, which is implemented here using          *  an anonymous inner class.         */        return new WordCount() {            public void countWords() {                try {                    // Create a Reader to the DocumentBean's File                    BufferedReader br = new BufferedReader(new FileReader(document));                    String line = null;                    int wordCount = 0;                    while ((line = br.readLine()) != null) {                        StringTokenizer st = new StringTokenizer(line);                        while (st.hasMoreTokens()) {                            System.out.println("Word " + (++wordCount)                                               + " is: " + st.nextToken());                        }                    }                    System.out.println("Total number of words in the document: "                                       + wordCount);                    System.out.println("[WordCount service brought to you by WordCountServiceProvider]");                                    br.close();                 } catch(Exception e) { }            }        };    }    public void releaseService(BeanContextServices bcs,                               Object requestor,                               Object service) {        // do nothing    }    public Iterator getCurrentServiceSelectors(BeanContextServices bcs, Class serviceClass) {        return null; // do nothing    }}