FileMatch.java

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/*
 * Copyright (c) 2006, 2011, Oracle and/or its affiliates. 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.
 *
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 *     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,
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/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */
 
 
package com.sun.jmx.examples.scandir.config;
 
import java.io.File;
import java.io.FileFilter;
import java.util.Arrays;
import java.util.Date;
import java.util.logging.Logger;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
 
@XmlRootElement(name="FileFilter",
        namespace=XmlConfigUtils.NAMESPACE)
public class FileMatch implements FileFilter {
 
    //
    // A logger for this class.
    //
    // private static final Logger LOG =
    //        Logger.getLogger(FileMatch.class.getName());
 
    private String directoryPattern;
 
    private String filePattern;
 
    private long sizeExceedsMaxBytes;
 
    private Date lastModifiedAfter;
 
    private Date lastModifiedBefore;
 
    public FileMatch() {
    }
 
    @XmlElement(name="DirectoryPattern",namespace=XmlConfigUtils.NAMESPACE)
    public String getDirectoryPattern() {
        return this.directoryPattern;
    }
 
    public void setDirectoryPattern(String directoryPattern) {
        this.directoryPattern = directoryPattern;
    }
 
    @XmlElement(name="FilePattern",namespace=XmlConfigUtils.NAMESPACE)
    public String getFilePattern() {
        return this.filePattern;
    }
 
    public void setFilePattern(String filePattern) {
        this.filePattern = filePattern;
    }
 
    @XmlElement(name="SizeExceedsMaxBytes",namespace=XmlConfigUtils.NAMESPACE)
    public long getSizeExceedsMaxBytes() {
        return this.sizeExceedsMaxBytes;
    }
 
    public void setSizeExceedsMaxBytes(long sizeLimitInBytes) {
        this.sizeExceedsMaxBytes = sizeLimitInBytes;
    }
 
    @XmlElement(name="LastModifiedAfter",namespace=XmlConfigUtils.NAMESPACE)
    public Date getLastModifiedAfter() {
        return (lastModifiedAfter==null)?null:(Date)lastModifiedAfter.clone();
    }
 
    public void setLastModifiedAfter(Date lastModifiedAfter) {
        this.lastModifiedAfter =
                (lastModifiedAfter==null)?null:(Date)lastModifiedAfter.clone();
    }
 
    @XmlElement(name="LastModifiedBefore",namespace=XmlConfigUtils.NAMESPACE)
    public Date getLastModifiedBefore() {
        return (lastModifiedBefore==null)?null:(Date)lastModifiedBefore.clone();
    }
 
    public void setLastModifiedBefore(Date lastModifiedBefore) {
        this.lastModifiedBefore =
             (lastModifiedBefore==null)?null:(Date)lastModifiedBefore.clone();
    }
 
    // Accepts or rejects a file with regards to the values of the fields
    // configured in this bean. The accept() method is the implementation
    // of FileFilter.accept(File);
    //
    public boolean accept(File f) {
 
        // Directories are accepted if they match against the directory pattern.
        //
        if (f.isDirectory()) {
            if (directoryPattern != null
                && !f.getName().matches(directoryPattern))
                return false;
            else return true;
        }
 
        // If we reach here, the f is not a directory.
        //
        // Files are accepted if they match all other conditions.
 
        // Check whether f matches filePattern
        if (filePattern != null
                && !f.getName().matches(filePattern))
            return false;
 
        // Check whether f exceeeds size limit
        if (sizeExceedsMaxBytes > 0 && f.length() <= sizeExceedsMaxBytes)
            return false;
 
        // Check whether f was last modified after lastModifiedAfter
        if (lastModifiedAfter != null &&
                lastModifiedAfter.after(new Date(f.lastModified())))
            return false;
 
        // Check whether f was last modified before lastModifiedBefore
        if (lastModifiedBefore != null &&
                lastModifiedBefore.before(new Date(f.lastModified())))
            return false;
 
        // All conditions were met: accept file.
        return true;
    }
 
    // used by equals()
    private Object[] toArray() {
        final Object[] thisconfig = {
            directoryPattern, filePattern, lastModifiedAfter,
            lastModifiedBefore, sizeExceedsMaxBytes
        };
        return thisconfig;
    }
 
    @Override
    public boolean equals(Object o) {
        if (o == this) return true;
        if (!(o instanceof FileMatch)) return false;
        final FileMatch other = (FileMatch)o;
        final Object[] thisconfig = toArray();
        final Object[] otherconfig = other.toArray();
        return Arrays.deepEquals(thisconfig,otherconfig);
    }
 
    @Override
    public int hashCode() {
        return Arrays.deepHashCode(toArray());
    }
 
}