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‎.gitignore‎

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.idea
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out
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*.iml
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*.txt

‎src/app/Main.java‎

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package app;
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import app.filtering.FileFilter;
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import app.filtering.FileFilterBuilder;
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import app.filtering.FilterStrategies;
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import java.util.Scanner;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class Main {
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public static void main(String[] args) {
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boolean keepRunning = true;
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while(keepRunning) {
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keepRunning = runAppLoop();
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}
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}
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private static boolean runAppLoop() {
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boolean keepRunning;Scanner sc = new Scanner(System.in);
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String inputPath = null;
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String comparePath = null;
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boolean valid = false;
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while(!valid) {
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System.out.println("type the name of the file containing data you want to be filtered");
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inputPath = sc.nextLine();
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System.out.println("type the name of the file containing data you want to use to filter");
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comparePath = sc.nextLine();
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System.out.println("");
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valid = (inputPath != null && comparePath != null);
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}
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filter(inputPath, comparePath);
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keepRunning = !sc.nextLine().equals("exit");
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return keepRunning;
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}
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private static void filter(String inputPath, String comparePath) {
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FileFilter filter = new FileFilterBuilder()
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.setFilterStrategy(FilterStrategies.FOLDER_IN_LINK)
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.setToFilterSource(inputPath)
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.setToCompareSource(comparePath)
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.build();
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filter.filter();
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Logger.getLogger("LINKFISCHER").log(Level.INFO, "Your Files have been filtered!");
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System.out.println("Type 'exit' to exit the program");
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}
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}

‎src/app/filereading/FolderReader.java‎

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package app.filereading;
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import app.model.Folder;
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import app.model.ITextObject;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class FolderReader implements ITextReader {
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private static final Logger logger = Logger.getLogger("FileReading");
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private final BufferedReader br;
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public FolderReader(BufferedReader br) {
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this.br = br;
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}
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@Override
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public ITextObject readNext() {
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Folder result;
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try {
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String line = br.readLine();
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if (line == null) {
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result = new Folder("#empty");
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} else {
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result = new Folder(line);
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}
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} catch (IOException e) {
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logger.log(Level.SEVERE, "error reading line");
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result = new Folder("#empty");
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}
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return result;
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}
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@Override
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protected void finalize() throws Throwable {
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super.finalize();
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br.close();
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}
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}

‎src/app/filereading/ITextReader.java‎

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package app.filereading;
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import app.model.ITextObject;
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public interface ITextReader {
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ITextObject readNext();
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}

‎src/app/filereading/LinkReader.java‎

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package app.filereading;
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import app.model.GitHubLink;
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import app.model.ITextObject;
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import sun.awt.image.ImageWatched;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class LinkReader implements ITextReader {
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private static final Logger logger = Logger.getLogger("FileReading");
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private final BufferedReader br;
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public LinkReader(BufferedReader br) {
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this.br = br;
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}
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public ITextObject readNext() {
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GitHubLink result;
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try {
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String line = br.readLine();
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if (line == null) {
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result = new GitHubLink("#empty");
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} else {
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result = new GitHubLink(line);
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}
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} catch (IOException e) {
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logger.log(Level.SEVERE, "error reading line");
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result = new GitHubLink("#empty");
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}
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return result;
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}
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@Override
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protected void finalize() throws Throwable {
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super.finalize();
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br.close();
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}
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}

‎src/app/filtering/FileFilter.java‎

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package app.filtering;
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import app.filereading.ITextReader;
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import java.io.IOException;
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public class FileFilter {
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private final ITextReader toFilterSource;
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private final ITextReader compareSource;
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private final IFilterStrategy filterStrategy;
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public FileFilter(ITextReader toFilterSource, ITextReader compareSource, IFilterStrategy filterStrategy) {
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this.toFilterSource = toFilterSource;
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this.compareSource = compareSource;
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this.filterStrategy = filterStrategy;
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}
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public void filter() {
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try {
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filterStrategy.filter(toFilterSource, compareSource);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}

‎src/app/filtering/FileFilterBuilder.java‎

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package app.filtering;
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import app.filereading.ITextReader;
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import app.filereading.LinkReader;
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import java.io.BufferedReader;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class FileFilterBuilder {
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private static final Logger logger = Logger.getLogger("FileFilterBuilder");
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private ITextReader toFilterSource;
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private ITextReader compareSource;
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private IFilterStrategy filterStrategy;
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public FileFilter build() {
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return new FileFilter(this.toFilterSource, this.compareSource, this.filterStrategy);
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}
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public FileFilterBuilder setToFilterSource(String sourcePath) {
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try {
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this.toFilterSource = new LinkReader(new BufferedReader(new FileReader(sourcePath)));
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} catch (FileNotFoundException e) {
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logger.log(Level.SEVERE, "file not found");
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}
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return this;
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}
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public FileFilterBuilder setToCompareSource(String sourcePath) {
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try {
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this.compareSource = new LinkReader(new BufferedReader(new FileReader(sourcePath)));
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} catch (FileNotFoundException e) {
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logger.log(Level.SEVERE, "file not found");
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}
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return this;
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}
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public FileFilterBuilder setFilterStrategy(FilterStrategies strategy) {
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this.filterStrategy = strategy.getStrategy();
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return this;
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}
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}

‎src/app/filtering/FilterStrategies.java‎

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package app.filtering;
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public enum FilterStrategies {
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FOLDER_IN_LINK(new FolderInLinkFilterStrategy());
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private final IFilterStrategy strategy;
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FilterStrategies(IFilterStrategy strategy) {
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this.strategy = strategy;
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}
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IFilterStrategy getStrategy(){
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return this.strategy;
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}
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}

‎src/app/filtering/FolderInLinkFilterStrategy.java‎

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package app.filtering;
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import app.filereading.ITextReader;
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import app.model.ITextObject;
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import java.io.BufferedWriter;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class FolderInLinkFilterStrategy implements IFilterStrategy {
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private final Logger logger = Logger.getLogger("Filter");
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private boolean linkContainsFolderName(String link, String folder) {
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return
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link.replace("git://github.com/", "").toLowerCase().contains(folder);
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}
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@Override
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public void filter(ITextReader toFilterSource, ITextReader compareSource) throws IOException {
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final BufferedWriter bw = new BufferedWriter(new FileWriter("output.txt"));
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final List<ITextObject> toFilterList = new ArrayList<ITextObject>();
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final List<ITextObject> compareList = new ArrayList<ITextObject>();
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fillObjectListFromSource(toFilterSource, toFilterList);
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fillObjectListFromSource(compareSource, compareList);
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iterateThroughLists(bw, toFilterList, compareList);
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bw.close();
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}
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private void fillObjectListFromSource(ITextReader compareSource, List<ITextObject> compareList) {
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ITextObject nextCompareObject = compareSource.readNext();
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while(!nextCompareObject.getName().equals("#empty")) {
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compareList.add(nextCompareObject);
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nextCompareObject = compareSource.readNext();
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}
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}
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private void iterateThroughLists(BufferedWriter bw, List<ITextObject> toFilterList, List<ITextObject> compareList) throws IOException {
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for (ITextObject link : toFilterList) {
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boolean deleteLink = false;
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for (ITextObject folder : compareList) {
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if (linkContainsFolderName(link.getName(), folder.getName())) {
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deleteLink = true;
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}
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}
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DeleteOrWriteLink(bw, link, deleteLink);
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}
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}
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private void DeleteOrWriteLink(BufferedWriter bw, ITextObject link, boolean deleteLink) throws IOException {
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if (deleteLink) {
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logger.log(Level.INFO, "deleting link " + link.getName());
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} else {
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logger.log(Level.INFO, "link stays: " + link.getName());
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bw.write(link.getName());
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bw.write("\n");
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}
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}
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}

‎src/app/filtering/IFilterStrategy.java‎

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package app.filtering;
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import app.filereading.ITextReader;
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import java.io.IOException;
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public interface IFilterStrategy {
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void filter(ITextReader toFilterSource, ITextReader compareSource) throws IOException;
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}

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