cmindexerthread.java

jxme的一些相关程序,主要是手机上程序开发以及手机和计算机通信的一些程序资料,程序编译需要Ant支持

/*
 *  Copyright (c) 2001 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:
 *
 *  1. Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 *
 *  2. 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.
 *
 *  3. The end-user documentation included with the redistribution,
 *  if any, must include the following acknowledgment:
 *  "This product includes software developed by the
 *  Sun Microsystems, Inc. for Project JXTA."
 *  Alternately, this acknowledgment may appear in the software itself,
 *  if and wherever such third-party acknowledgments normally appear.
 *
 *  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
 *  not be used to endorse or promote products derived from this
 *  software without prior written permission. For written
 *  permission, please contact Project JXTA at http://www.jxta.org.
 *
 *  5. Products derived from this software may not be called "JXTA",
 *  nor may "JXTA" appear in their name, without prior written
 *  permission of Sun.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 SUN MICROSYSTEMS OR
 *  ITS 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.
 *  ====================================================================
 *
 *  This software consists of voluntary contributions made by many
 *  individuals on behalf of Project JXTA.  For more
 *  information on Project JXTA, please see
 *  <http://www.jxta.org/>.
 *
 *  This license is based on the BSD license adopted by the Apache Foundation.
 *
 *  $Id: CmIndexerThread.java,v 1.2 2002/03/04 21:38:13 echtcherbina Exp $
 */

package net.jxta.impl.cm;

import java.util.Enumeration;
import java.util.Vector;
import java.util.EmptyStackException;
import java.util.Stack;
import java.io.IOException;
import java.io.File;
import java.io.FileInputStream;

import net.jxta.index.IndexService;
//PDA requirements 21.02.2002
//class net.jxta.impl.index.IndexServiceImpl is never used
//import net.jxta.impl.index.IndexServiceImpl;
//PDA requirements 21.02.2002
import net.jxta.impl.cm.Cm;

import org.apache.log4j.Category; import org.apache.log4j.Priority;




class CmIndexerThread  implements Runnable {
    private static final Category LOG = Category.getInstance(CmIndexerThread.class.getName());

    /**
     * The task of this thread is add documents to an index
     * This thread is run once at the start of a group
     */


    private File[]                dirs;
    private IndexService.Index[]  indexes;

    CmIndexerThread(File[]                dirs,
                    IndexService.Index[]  indexes) {
        this.dirs              = dirs;
        this.indexes           = indexes;
    }


    public void run() {
        try {
            for (int i = 0;  i < dirs.length;  i++) {
                if (LOG.isEnabledFor(Priority.INFO)) LOG.info("Starting to index "+ dirs[i]);

                String [] fn = dirs[i].list();

                for (int j = 0; j < fn.length ; j++) {

                    File f = new File(dirs[i], fn[j]);

                    if (LOG.isEnabledFor(Priority.DEBUG)) LOG.debug("Indexing " + fn[j] +" in "+ dirs[i]);

                    try {
                        indexFile(indexes[i], f);
                    } catch (IOException e) {
                        //XXX  revisit for alternative action
                    if (LOG.isEnabledFor(Priority.WARN)) LOG.warn("IOX! NOT Indexing " + fn[j] +" in "+ dirs[i]);
                    } catch (IndexService.BadDocumentException e) {
                    if (LOG.isEnabledFor(Priority.WARN)) LOG.warn("BADDOC! NOT Indexing " + fn[j] +" in "+ dirs[i]);
                        // do nothing just a bad doc
                    } catch (IndexService.IndexException e) {
                    if (LOG.isEnabledFor(Priority.WARN)) LOG.warn("INDX! NOT Indexing " + fn[j] +" in "+ dirs[i]);
                        // disable index use, and move on
                        //cm.indexes.remove(dirname);
                        // cm.isIndexEnabled= false;
                        // break;
                    }
                    /*
                } else {
                    if (LOG.isEnabledFor(Priority.WARN)) LOG.warn ("Not indexing " + fn[j] + " in " + dirs[i]
                              + " because its lifetime has expired.");
                }
                     */
                }

                if (LOG.isEnabledFor(Priority.INFO)) LOG.info("Finished indexing " + dirs[i]);
            }
        } catch ( Throwable all ) {
            if (LOG.isEnabledFor(Priority.FATAL)) LOG.fatal( "Uncaught Throwable in thread :" + Thread.currentThread().getName(), all );
        }
    }

    // adds a document to the index
    private void indexFile(IndexService.Index index, File f)
        throws IOException,
        IndexService.BadDocumentException, IndexService.IndexException {

        FileInputStream in = null;

        in = new FileInputStream(f);
        if (in == null) {
            if (LOG.isEnabledFor(Priority.ERROR)) LOG.error("indexing file which could not be opened");
        }
        if (f.getName() == null) {
            if (LOG.isEnabledFor(Priority.ERROR)) LOG.error("indexing file with null pathName");
        }
        if (index == null) {
            if (LOG.isEnabledFor(Priority.ERROR)) LOG.error("indexing into null index");
        }
        index.add(f.getName(), in);
        if (in != null) {
            in.close();
        }
    }
}