Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2014 Microsoft Open Technologies Inc.
 *
 * Licensed 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.
 */

import java.io.*;
import java.net.URL;
import java.util.Scanner;

public class Main {
    /**
     * This API compares if two files content is identical. It ignores extra
     * spaces and new lines while comparing
     *
     * @param sourceFile
     * @param destFile
     * @return
     * @throws Exception
     */
    public static boolean isFilesIdentical(URL sourceFile, File destFile) throws Exception {
        try {
            Scanner sourceFileScanner = new Scanner(sourceFile.openStream());
            Scanner destFileScanner = new Scanner(destFile);

            while (sourceFileScanner.hasNext()) {
                /*
                 * If source file is having next token then destination file
                 * also should have next token, else they are not identical.
                 */
                if (!destFileScanner.hasNext()) {
                    destFileScanner.close();
                    sourceFileScanner.close();
                    return false;
                }
                if (!sourceFileScanner.next().equals(destFileScanner.next())) {
                    sourceFileScanner.close();
                    destFileScanner.close();
                    return false;
                }
            }
            /*
             * Handling the case where source file is empty and destination file
             * is having text
             */
            if (destFileScanner.hasNext()) {
                destFileScanner.close();
                sourceFileScanner.close();
                return false;
            } else {
                destFileScanner.close();
                sourceFileScanner.close();
                return true;
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        } /*finally {
          sourceFile.close();
          }*/
    }
}