standardheuristicdefinitionset.java

来自「spam source codejasen-0.9jASEN - java An」· Java 代码 · 共 140 行

/*
 * @(#)StandardHeuristicDefinitionSet.java	1/12/2004
 *
 * Copyright (c) 2004, 2005  jASEN.org
 * 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 names of the authors may not be used to endorse or promote products
 *      derived from this software without specific prior written permission.
 *
 *   4. Any modification or additions to the software must be contributed back
 *      to the project.
 *
 *   5. Any investigation or reverse engineering of source code or binary to
 *      enable emails to bypass the filters, and hence inflict spam and or viruses
 *      onto users who use or do not use jASEN could subject the perpetrator to
 *      criminal and or civil liability.
 *
 * 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 JASEN.ORG,
 * OR ANY CONTRIBUTORS TO THIS SOFTWARE 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.
 *
 */
package org.jasen.core.parsers;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Properties;
import java.util.Vector;

import org.jasen.error.ErrorHandlerBroker;
import org.jasen.error.JasenException;
import org.jasen.interfaces.HeuristicDefinitionSet;

/**
 * <P>
 * 	Maintains a set of regular expressions.
 * </P>
 * @author Jason Polites
 */
public class StandardHeuristicDefinitionSet implements HeuristicDefinitionSet
{
    String[] definitions;

    /**
     * 
     */
    public StandardHeuristicDefinitionSet() {
        super ();
    }

    /**
     * Gets the set of definitions contained in this set
     * @return An array of strings representing each definition
     */
    public String[] getDefinitions() {
        return definitions;
    }
    
    /**
     * Sets the set of definitions contained in this set
     * @param definitions  An array of strings representing each definition
     */
    public void setDefinitions(String[] definitions) {
        this.definitions = definitions;
    }
    
    /*
     * (non-Javadoc)
     * @see org.jasen.interfaces.HeuristicDefinitionSet#init(java.util.Properties)
     */
    public void init(Properties properties) throws JasenException {
        // Load the definitions
        String strDataFile = properties.getProperty("data-file");

        InputStream in = null;
        
        try
        {
            in = this.getClass().getClassLoader().getResourceAsStream(strDataFile);
            InputStreamReader streamReader = new InputStreamReader(in);
            BufferedReader bReader = new BufferedReader(streamReader);
            String line = null;
            Vector defs = null;
            
            try
            {
                line = bReader.readLine();
                
                if(line != null) {
                    
                    defs = new Vector();
                    
                    while(line != null) {
                        defs.add(line.trim());
                        line = bReader.readLine();
                    } 
                    
                    definitions = (String[])defs.toArray(new String[defs.size()]);
                }
            }
            catch (IOException e)
            {
                throw new JasenException(e);
            }
        }
        finally
        {
            if(in != null) {
                try
                {
                    in.close();
                }
                catch (IOException e)
                {
                    ErrorHandlerBroker.getInstance().getErrorHandler().handleException(e);
                }
            }
        }
    }
}