- refactoring

- only call checkit_tiff twice if binaries and profiles differ
- add getProfile() support
- enhanced main for tests

java/org/slub/rosetta/dps/repository/plugin/SLUBTechnicalMetadataExtractorCheckItTiffPlugin.java

 /* 
-2014-2018 by Andreas Romeyke (SLUB Dresden)
+2014-2022 by Andreas Romeyke (SLUB Dresden)
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -13,7 +13,7 @@ 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.
 
-Hint: works only with checkit_tiff version 0.3.1 or higher
+Hint: works only with checkit_tiff version 1.0.0 or higher
 */
 
 package org.slub.rosetta.dps.repository.plugin;
@@ -25,13 +25,17 @@ import com.exlibris.dps.sdk.techmd.MDExtractorPlugin;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.math.BigInteger;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.security.MessageDigest;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import java.nio.file.*;
 
 
 /**
@@ -43,15 +47,24 @@ import java.nio.file.*;
 /*public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtractorPlugin { */
 public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtractorPlugin {
     private static final ExLogger log = ExLogger.getExLogger(SLUBTechnicalMetadataExtractorCheckItTiffPlugin.class);
-    private Map<Checkit_tiff_versions, String> checkit_tiff_binary_path = new HashMap<Checkit_tiff_versions, String>();
-    private Map<Checkit_tiff_versions, String> checkit_tiff_config_path = new HashMap<Checkit_tiff_versions, String>();
-    private Map<Checkit_tiff_versions, Boolean> is_checkit_tiff_valid = new HashMap<Checkit_tiff_versions, Boolean>();
+    private enum Checkit_tiff_versions {
+        current, upcoming
+    }
+    private final Map<Checkit_tiff_versions, String> checkit_tiff_binary_path = new HashMap<Checkit_tiff_versions, String>();
+    private final Map<Checkit_tiff_versions, String> checkit_tiff_config_path = new HashMap<Checkit_tiff_versions, String>();
     private String exiftool_binary_path;
     private List<String> extractionErrors = new ArrayList<String>();
-    private List<String> validationLog = new ArrayList<String>();
+    private final List<String> validationLog = new ArrayList<String>();
     private Boolean isvalid = false;
     private Boolean iswellformed = false;
-    private Map<String,String> attributes = new HashMap<String, String>();
+    private final Map<String,String> attributes = new HashMap<String, String>();
+    private Map<Checkit_tiff_versions, String> md5Profile = new HashMap<>();
+    private Map<Checkit_tiff_versions, String> md5CheckitTiff = new HashMap<>();
+    private boolean isDifferentProfile = true;
+    private boolean isDifferentCheckItTiff = true;
+    private Map<Checkit_tiff_versions, Boolean> is_checkit_tiff_valid = new HashMap<Checkit_tiff_versions, Boolean>();
+
+
     /** constructor */
     public SLUBTechnicalMetadataExtractorCheckItTiffPlugin() {
         log.info("SLUBTechnicalMetadataExtractorCheckItTiffPlugin instantiated");
@@ -60,33 +73,6 @@ public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtrac
         }
     }
 
-    /** stand-alone check, main file to call local installed clamd
-     * @param args list of files which should be scanned
-     */
-    public static void main(String[] args) {
-        SLUBTechnicalMetadataExtractorCheckItTiffPlugin plugin = new SLUBTechnicalMetadataExtractorCheckItTiffPlugin();
-        Map<String, String> initp = new HashMap<String, String>();
-        // initp.put( "checkit_tiff", "/usr/bin/checkit_tiff");
-        // initp.put( "config_file", "/etc/checkit_tiff/slub.cfg");
-        initp.put( "current_checkit_tiff", "/home/romeyke/git/checkit_tiff/build/checkit_tiff");
-        initp.put( "current_config_file", "/home/romeyke/git/checkit_tiff/example_configs/cit_tiff6_baseline_SLUBrelaxed.cfg");
-        initp.put( "upcoming_checkit_tiff", "/home/romeyke/git/checkit_tiff/build/checkit_tiff");
-        initp.put( "upcoming_config_file", "/home/romeyke/git/checkit_tiff/example_configs/cit_tiff6_baseline_SLUBrelaxed.cfg");
-        initp.put( "exiftool", "/usr/bin/exiftool");
-        plugin.initParams( initp );
-        System.out.println("Agent: '" + plugin.getAgent() + "'");
-        System.out.println();
-        for (String file : args) {
-            try {
-                plugin.extract(file);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            System.out.println("RESULT: " + plugin.isValid());
-            System.out.println("ERRORMESSAGE: " + plugin.getExtractionErrors());
-        }
-    }
-
     /** init params to configure the plugin via xml forms
      * @param initp parameter map
      */
@@ -97,6 +83,18 @@ public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtrac
         this.checkit_tiff_config_path.put(Checkit_tiff_versions.upcoming, initp.get("upcoming_config_file").trim());
        
         this.exiftool_binary_path = initp.get("exiftool").trim();
+        try {
+            check_path(exiftool_binary_path, "path for exiftool_binary", true);
+            for (Checkit_tiff_versions v: Checkit_tiff_versions.values()) {
+                check_path(checkit_tiff_binary_path.get(v), "path for checkit_tiff binary " + v, true);
+                check_path(checkit_tiff_config_path.get(v), "path for checkit_tiff config " + v, false);
+                md5CheckitTiff.put(v, md5SumOfFile(checkit_tiff_binary_path.get(v)));
+                md5Profile.put(v,md5SumOfFile(checkit_tiff_config_path.get(v)));
+            }
+            this.isDifferentProfile = ! this.md5Profile.get(Checkit_tiff_versions.current).equals(this.md5Profile.get(Checkit_tiff_versions.upcoming));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
         log.info("SLUBTechnicalMetadataExtractorCheckItTiffPlugin instantiated with "
                 + "(current: "
                 + " checkit_tiff_binary_path=" + checkit_tiff_binary_path.get(Checkit_tiff_versions.current)
@@ -105,7 +103,8 @@ public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtrac
                 + " checkit_tiff_binary_path=" + checkit_tiff_binary_path.get(Checkit_tiff_versions.upcoming)
                 + " cfg=" + checkit_tiff_config_path.get(Checkit_tiff_versions.upcoming)
                 + ")"
-                + " and exiftool_binary_path=" + exiftool_binary_path);
+                + " and exiftool_binary_path=" + exiftool_binary_path
+        );
     }
 
     private void parse_exiftool_output( String exiftoolxml ) {
@@ -136,16 +135,9 @@ public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtrac
 
     @Override
     public void extract(String filePath) throws Exception {
-        for (Checkit_tiff_versions v: Checkit_tiff_versions.values()) {
-            check_path( checkit_tiff_binary_path.get(v), "path for (" + v.name() + ") checkit_tiff_binary", true);
-            check_path( checkit_tiff_config_path.get(v), "path for (" + v.name() + ") checkit_tiff_config", false);
-        }
-
-        check_path(exiftool_binary_path, "path for exiftool_binary", true);
         validate_tiff_by_upcoming_checkit_tiff(filePath);
-
         /* only check against current checkit_tiff if upcoming fails */
-        if (is_checkit_tiff_valid.get(Checkit_tiff_versions.upcoming) == false) {
+        if ((this.isDifferentCheckItTiff || isDifferentProfile) && is_checkit_tiff_valid.get(Checkit_tiff_versions.upcoming) == false) {
             validate_tiff_by_current_checkit_tiff(filePath);
         }
 
@@ -1129,9 +1121,94 @@ public class SLUBTechnicalMetadataExtractorCheckItTiffPlugin implements MDExtrac
       return "image/tiff";
     }
 
-    private enum Checkit_tiff_versions {
-        current, upcoming
+    @Override
+    public String getProfile () {
+        /* there is no documentation in ExL API, therefore we use it to document the profile versions in a light way */
+        String returnvalue = "";
+        for (Checkit_tiff_versions v: Checkit_tiff_versions.values()) {
+            String modificationdate = modificationDateOfFile(this.checkit_tiff_config_path.get(v));
+            returnvalue = returnvalue + v + "profile:\n"
+                    + "  path=" + this.checkit_tiff_config_path.get(v) + "\n"
+                    + "  md5sum=" + this.md5CheckitTiff.get(v) + "\n"
+                    + "  modification date=" + modificationdate + "\n";
+        }
+        return returnvalue;
+    }
+
+    private String md5SumOfFile(String filename ) {
+        try {
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            byte[] b = Files.readAllBytes(Paths.get(filename));
+            byte[] digest = md.digest(b);
+            String hexdigest = new BigInteger(1, digest).toString(16);
+            return hexdigest;
+        } catch (Exception e) {
+            e.printStackTrace();
         }
+        return "";
     }
 
+    private String modificationDateOfFile(String filename ) {
+        try {
+            return Files.getLastModifiedTime(Paths.get(filename)).toString();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return "";
+    }
 
+    /** stand-alone check, main file to call local installed clamd
+     * @param args list of files which should be scanned
+     */
+    /** stand-alone check, main file to call local installed clamd
+     * @param args list of files which should be scanned
+     */
+    public static void main(String[] args) {
+        SLUBTechnicalMetadataExtractorCheckItTiffPlugin plugin = new SLUBTechnicalMetadataExtractorCheckItTiffPlugin();
+        Map<String, String> initp = new HashMap<String, String>();
+        initp.put( "current_checkit_tiff", "/operational_shared/software/checkit_tiff_current");
+        initp.put( "current_config_file", "/operational_shared/software/cit_tiff6_baseline_SLUB_current.cfg");
+        initp.put( "upcoming_checkit_tiff", "/operational_shared/software/checkit_tiff_upcoming");
+        initp.put( "upcoming_config_file", "/operational_shared/software/cit_tiff6_baseline_SLUB_current.cfg");
+        initp.put( "exiftool", "/usr/bin/exiftool");
+        plugin.initParams( initp );
+        System.out.println("Agent: '" + plugin.getAgent() + "'");
+        System.out.println();
+        for (String file : args) {
+            try {
+                plugin.extract(file);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+            System.out.println("RESULT: " + plugin.isValid());
+            System.out.println("ERRORMESSAGE: " + plugin.getExtractionErrors());
+        }
+        System.out.println("----------------------------------");
+        System.out.println("getAgentName:");
+        System.out.println( plugin.getAgentName());
+        System.out.println("----------------------------------");
+        System.out.println("getAgent:");
+        System.out.println( plugin.getAgent());
+        System.out.println("----------------------------------");
+        System.out.println("getSupportedAttributeNames:");
+        System.out.println( plugin.getSupportedAttributeNames());
+        System.out.println("----------------------------------");
+        System.out.println("getFormatName:");
+        System.out.println( plugin.getFormatName());
+        System.out.println("----------------------------------");
+        System.out.println("getFormatVersion:");
+        System.out.println( plugin.getFormatVersion());
+        System.out.println("----------------------------------");
+        System.out.println("getMimeType:");
+        System.out.println( plugin.getMimeType());
+        System.out.println("----------------------------------");
+        System.out.println("getProfile:");
+        System.out.println( plugin.getProfile());
+        System.out.println("----------------------------------");
+        System.out.println("getAttributeByName (summarized):");
+        for (Map.Entry<String, String> m : plugin.attributes.entrySet()) {
+            String s = m.getKey() + " -> " + m.getValue();
+            System.out.println(s);
+        }
+    }
+}