implemented checking for required applications

3 years ago · 4681f6f079
3 changed files with 41 additions and 6 deletions
--- a/pom.xml
+++ b/pom.xml
@ -4,7 +4,7 @@
				@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>BelegScanner</groupId>
 	<artifactId>BelegScanner</artifactId>
-	<version>1.0.4</version>
+	<version>1.0.5</version>
 	
 	<name>BelegScanner</name>
 	<packaging>jar</packaging>
--- a/src/main/java/de/srsoftware/belegscanner/Application.java
+++ b/src/main/java/de/srsoftware/belegscanner/Application.java
@ -17,6 +17,7 @@ public class Application {
				@@ -17,6 +17,7 @@ public class Application {
 		Configuration config = new Configuration(Constants.APPLICATION_NAME);
 		MainFrame app = new MainFrame(config);
 		app.setDefaultCloseOperation(MainFrame.EXIT_ON_CLOSE);
+		app.checkDependencies();
 	}
 	
 	/**
--- a/src/main/java/de/srsoftware/belegscanner/gui/MainFrame.java
+++ b/src/main/java/de/srsoftware/belegscanner/gui/MainFrame.java
@ -8,17 +8,16 @@ import java.awt.event.ActionEvent;
				@@ -8,17 +8,16 @@ import java.awt.event.ActionEvent;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Path;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.HashSet;
+import java.util.*;
 import java.util.Map.Entry;
-import java.util.Vector;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;

 import javax.swing.BorderFactory;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
+import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.SwingConstants;

@ -32,6 +31,7 @@ import org.slf4j.LoggerFactory;
				@@ -32,6 +31,7 @@ import org.slf4j.LoggerFactory;

 import static de.srsoftware.belegscanner.Application.*;
 import de.srsoftware.belegscanner.Configuration;
+import de.srsoftware.belegscanner.Constants;


 /**
@ -136,7 +136,25 @@ public class MainFrame extends JFrame {
				@@ -136,7 +136,25 @@ public class MainFrame extends JFrame {
 		while (matches.find()) marks.add(matches.group(1));
 		toolbar.addFieldsFor(marks);
 	};
-	
+
+	public void checkDependencies() {
+		List<String> missing = List.of("convert --version", "killall --version", "pdfsandwich -version", "pdftk --version", "scanimage --version",Constants.FILE_BROWSER+" --version").stream().map(this::appMissing).filter(app -> app != null).collect(Collectors.toList());
+		if (!missing.isEmpty()) notifyAppsMissing(missing);
+	}
+
+	public String appMissing(String appTest){
+		List<String> cmd = Arrays.asList(appTest.split(" "));
+		
+		try {
+			Process process = new ProcessBuilder(cmd).start();
+			int errorCode = process.waitFor();
+			if (errorCode == 0) return null;
+		} catch (InterruptedException | IOException e) {
+			LOG.error(t("{} terminated: "),appTest,e);
+		}
+		return cmd.get(0);
+	}
+
 	/**
 	 * checks, whether the scan button may be enabled.
 	 */
@ -144,6 +162,22 @@ public class MainFrame extends JFrame {
				@@ -144,6 +162,22 @@ public class MainFrame extends JFrame {
 		toolbar.readyToScan(!(isScanning || patchedPath==null || patchedPath.isBlank() || patchedPath.contains("$"))); 
 	}

+	private void notifyAppsMissing(List<String> missingApps) {
+		StringBuilder message = new StringBuilder();
+		message.append("<html>");
+		message.append(t("This application requires the following helper commands to be installed:"));
+		message.append("<ul>");
+		missingApps.forEach(app -> message.append("<li>").append(app).append("</li>"));
+		message.append("</ul>");
+		
+		JOptionPane.showMessageDialog(this,
+		    message,
+		    t("Apps missing"),
+		    JOptionPane.WARNING_MESSAGE);
+		System.exit(-1);
+	}
+
+	
 	/**
 	 * scan a new document, convert it to pdf and perform text recognition
 	 * @param path