Fixing #137 documented the feature

adobe · Jun 20, 2024 · 7df31aa · 7df31aa
1 parent 362f481
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diff --git a/README.md b/README.md
@@ -260,17 +260,21 @@ In this case we get :
 
 ### Comparing Log Data
 As of version 1.11.0 we have introduced the possibility to compare two LogData objects. This is a light compare that checks that for a given key, if it is absent, added or changes in frequency. The method `compare` returns a `LogDataComparison` object that contains the results of the comparison. A comparison can be of three types:
-* Added : The entry has been added
+* NEW : The entry has been added
 * Removed : The entry has been removed
 * Changed : The entry has changed in frequency
 
 Apart from this we return the :
 * delta : The difference in frequency
-* deltaRatio : The difference in frequency as a ratio
+* deltaRatio : The difference in frequency as a ratio in %
 
 These values are negative if the values have decreased.
 
-```java
+Creating a differentiation report is done with the method `LogData.compare(LogData<T> in_logData)`. This method returns a `LogDataComparison` object that contains the results of the comparison.
+
+#### Creating a Differentiation Report
+We can generate an HTML Report where the differences are high-lighted. This is done with the method `LogDataFactory.generateComparisonReport(LogData reference, LogData target, String filename)`. This method will generate an HTML Report detailing the found differences.
+
 
 ## Assertions and LogDataAssertions
 As of version 1.0.5 we have introduced the notion of assertions. Assertions can either take a LogData object or a set of files as input.
@@ -294,6 +298,7 @@ We now have the possibility to export the log data results into a CSV file. The
 
 ### 1.11.0 (next version)
 - **(new feature)** [#127](https://github.com/adobe/log-parser/issues/127) You can now compare two LogData Objects. This is a light compare that checks that for a given key, if it is absent, added or changes in frequency.
+  - **(new feature)** [#137](https://github.com/adobe/log-parser/issues/137) We can now generate an HTML report for the differences in log data.
 - **(new feature)** [#117](https://github.com/adobe/log-parser/issues/117) You can now include the file name in the result of the analysis.
 - **(new feature)** [#123](https://github.com/adobe/log-parser/issues/123) We now log the total number and size of the parsed files.
 - [#110](https://github.com/adobe/log-parser/issues/110) Moved to Java 11

diff --git a/diagrams/Log_Parser-Processes.png b/diagrams/Log_Parser-Processes.png
diff --git a/diagrams/Log_Parser.drawio b/diagrams/Log_Parser.drawio
@@ -1,6 +1,6 @@
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   <diagram id="GF7U1PxuMcIbTAeL1bwN" name="Classes">
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+    <mxGraphModel dx="1354" dy="912" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="850" pageHeight="1100" background="#FFFFFF" math="0" shadow="0">
       <root>
         <mxCell id="0" />
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@@ -72,7 +72,7 @@
     </mxGraphModel>
   </diagram>
   <diagram id="LirX-YWR1LI0kx1sx8zC" name="Processes">
-    <mxGraphModel dx="1114" dy="878" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" background="#FFFFFF" math="0" shadow="0">
+    <mxGraphModel dx="1114" dy="912" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" background="#FFFFFF" math="0" shadow="0">
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@@ -92,12 +92,13 @@
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         </mxCell>
         <mxCell id="dgaH53lybmkEFGB52cs7-35" value="Group By &lt;br&gt;Definition Entry" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.25;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;entryPerimeter=0;fontColor=#393C56;labelBackgroundColor=#FFFFFF;" parent="dgaH53lybmkEFGB52cs7-1" source="dgaH53lybmkEFGB52cs7-42" target="dgaH53lybmkEFGB52cs7-34" edge="1">
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+          <mxGeometry x="0.589" relative="1" as="geometry">
             <mxPoint x="700" y="260" as="sourcePoint" />
             <Array as="points">
               <mxPoint x="850" y="242" />
-              <mxPoint x="850" y="70" />
+              <mxPoint x="850" y="180" />
             </Array>
+            <mxPoint as="offset" />
           </mxGeometry>
         </mxCell>
         <mxCell id="dgaH53lybmkEFGB52cs7-32" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;exitDx=0;exitDy=0;labelBackgroundColor=#FFFFFF;fontColor=#393C56;" parent="dgaH53lybmkEFGB52cs7-1" edge="1">
@@ -107,23 +108,33 @@
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-          <mxGeometry x="920" y="40" width="100" height="60" as="geometry" />
+          <mxGeometry x="970" y="150" width="100" height="60" as="geometry" />
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         <mxCell id="FXQAlGXq-PYeFnHcnt1Y-17" value="&lt;font style=&quot;font-size: 11px&quot;&gt;Filter By &lt;br&gt;Definition Entry&lt;/font&gt;" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.25;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;entryPerimeter=0;labelBackgroundColor=#FFFFFF;strokeColor=#000000;fontSize=12;" parent="dgaH53lybmkEFGB52cs7-1" source="dgaH53lybmkEFGB52cs7-42" target="FXQAlGXq-PYeFnHcnt1Y-16" edge="1">
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+        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-4" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.75;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;dashed=1;" parent="dgaH53lybmkEFGB52cs7-1" source="dgaH53lybmkEFGB52cs7-42" target="CEJ-vFzQ0yJb0CGG5-7o-0" edge="1">
           <mxGeometry relative="1" as="geometry" />
         </mxCell>
-        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-5" value="export" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.75;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;dashed=1;" edge="1" parent="dgaH53lybmkEFGB52cs7-1" source="dgaH53lybmkEFGB52cs7-42" target="CEJ-vFzQ0yJb0CGG5-7o-1">
+        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-5" value="export" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.75;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;dashed=1;" parent="dgaH53lybmkEFGB52cs7-1" source="dgaH53lybmkEFGB52cs7-42" target="CEJ-vFzQ0yJb0CGG5-7o-1" edge="1">
           <mxGeometry relative="1" as="geometry" />
         </mxCell>
+        <mxCell id="C3BIZFhyQSCN-kVbLvhw-1" value="compare &lt;br&gt;two&lt;br&gt;LogData" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.25;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;entryPerimeter=0;" edge="1" parent="dgaH53lybmkEFGB52cs7-1" source="dgaH53lybmkEFGB52cs7-42" target="C3BIZFhyQSCN-kVbLvhw-2">
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+            <Array as="points">
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+              <mxPoint x="850" y="70" />
+            </Array>
+            <mxPoint as="offset" />
+          </mxGeometry>
+        </mxCell>
         <mxCell id="dgaH53lybmkEFGB52cs7-42" value="LogData" style="rounded=0;whiteSpace=wrap;html=1;shadow=1;labelBackgroundColor=#FFFFFF;" parent="dgaH53lybmkEFGB52cs7-1" vertex="1">
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         </mxCell>
@@ -221,7 +232,7 @@
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         </mxCell>
         <mxCell id="FXQAlGXq-PYeFnHcnt1Y-16" value="Filter By /&lt;br&gt;search" style="strokeWidth=2;html=1;shape=mxgraph.flowchart.terminator;whiteSpace=wrap;shadow=1;labelBackgroundColor=#FFFFFF;" parent="dgaH53lybmkEFGB52cs7-1" vertex="1">
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@@ -259,17 +270,29 @@
             <mxPoint x="330" y="200" as="targetPoint" />
           </mxGeometry>
         </mxCell>
-        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-0" value="JSON" style="shape=document;whiteSpace=wrap;html=1;boundedLbl=1;labelBackgroundColor=#FFFFFF;strokeColor=#000000;fillColor=#FFFFFF;fontSize=12;align=center;" vertex="1" parent="dgaH53lybmkEFGB52cs7-1">
+        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-0" value="JSON" style="shape=document;whiteSpace=wrap;html=1;boundedLbl=1;labelBackgroundColor=#FFFFFF;strokeColor=#000000;fillColor=#FFFFFF;fontSize=12;align=center;" parent="dgaH53lybmkEFGB52cs7-1" vertex="1">
           <mxGeometry x="840" y="350" width="110" height="63" as="geometry" />
         </mxCell>
-        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-1" value="CSV" style="shape=document;whiteSpace=wrap;html=1;boundedLbl=1;labelBackgroundColor=#FFFFFF;strokeColor=#000000;fillColor=#FFFFFF;fontSize=12;align=center;" vertex="1" parent="dgaH53lybmkEFGB52cs7-1">
+        <mxCell id="CEJ-vFzQ0yJb0CGG5-7o-1" value="CSV" style="shape=document;whiteSpace=wrap;html=1;boundedLbl=1;labelBackgroundColor=#FFFFFF;strokeColor=#000000;fillColor=#FFFFFF;fontSize=12;align=center;" parent="dgaH53lybmkEFGB52cs7-1" vertex="1">
           <mxGeometry x="840" y="440" width="110" height="63" as="geometry" />
         </mxCell>
+        <mxCell id="C3BIZFhyQSCN-kVbLvhw-2" value="Compare" style="strokeWidth=2;html=1;shape=mxgraph.flowchart.terminator;whiteSpace=wrap;shadow=1;labelBackgroundColor=#FFFFFF;" vertex="1" parent="dgaH53lybmkEFGB52cs7-1">
+          <mxGeometry x="970" y="40" width="100" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="C3BIZFhyQSCN-kVbLvhw-3" value="export" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;dashed=1;exitPerimeter=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" edge="1" parent="dgaH53lybmkEFGB52cs7-1" source="C3BIZFhyQSCN-kVbLvhw-2" target="C3BIZFhyQSCN-kVbLvhw-4">
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+            <mxPoint x="1110" y="70" as="targetPoint" />
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+        <mxCell id="C3BIZFhyQSCN-kVbLvhw-4" value="HTML" style="shape=document;whiteSpace=wrap;html=1;boundedLbl=1;labelBackgroundColor=#FFFFFF;strokeColor=#000000;fillColor=#FFFFFF;fontSize=12;align=center;" vertex="1" parent="dgaH53lybmkEFGB52cs7-1">
+          <mxGeometry x="1140" y="37" width="110" height="63" as="geometry" />
+        </mxCell>
       </root>
     </mxGraphModel>
   </diagram>
   <diagram id="6ssjRT5Lo6XObwfs72mm" name="log-parsing">
-    <mxGraphModel dx="1114" dy="878" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="1169" pageHeight="827" math="0" shadow="0">
+    <mxGraphModel dx="1114" dy="912" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="1169" pageHeight="827" math="0" shadow="0">
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diff --git a/src/main/java/com/adobe/campaign/tests/logparser/core/LogData.java b/src/main/java/com/adobe/campaign/tests/logparser/core/LogData.java
@@ -10,6 +10,7 @@
 
 import com.adobe.campaign.tests.logparser.exceptions.IncorrectParseDefinitionException;
 import com.adobe.campaign.tests.logparser.exceptions.LogDataExportToFileException;
+import com.adobe.campaign.tests.logparser.utils.FileUtils;
 import org.apache.commons.csv.CSVFormat;
 import org.apache.commons.csv.CSVPrinter;
 import org.apache.logging.log4j.LogManager;
@@ -393,12 +394,7 @@ public File exportLogDataToCSV(Set<String> in_headerSet, String in_csvFileName)
             throws LogDataExportToFileException {
         File l_exportFile = new File(in_csvFileName);
 
-        if (l_exportFile.exists()) {
-            log.info("Deleting existing log export file {}...", in_csvFileName);
-            if (!l_exportFile.delete()) {
-                throw new LogDataExportToFileException("We were unable to delete the file "+ l_exportFile.getPath());
-            }
-        }
+        FileUtils.cleanFile(l_exportFile);
 
         try (CSVPrinter printer = new CSVPrinter(new FileWriter(in_csvFileName), CSVFormat.DEFAULT)) {
             printer.printRecord(in_headerSet);
@@ -439,7 +435,7 @@ public Map<String, LogDataComparison> compare(LogData<T> in_logData) {
 
         for (String lt_key : in_logData.getEntries().keySet()) {
             if (!this.getEntries().containsKey(lt_key)) {
-                lr_diff.put(lt_key, new LogDataComparison(in_logData.get(lt_key), LogDataComparison.ChangeType.ADDED,
+                lr_diff.put(lt_key, new LogDataComparison(in_logData.get(lt_key), LogDataComparison.ChangeType.NEW,
                         0, in_logData.get(lt_key).getFrequence()));
             }
         }

diff --git a/src/main/java/com/adobe/campaign/tests/logparser/core/LogDataComparison.java b/src/main/java/com/adobe/campaign/tests/logparser/core/LogDataComparison.java
@@ -40,6 +40,6 @@ public Double getDeltaRatio() {
 
 
     enum ChangeType {
-        ADDED, REMOVED, MODIFIED
+        NEW, REMOVED, MODIFIED
     };
 }
diff --git a/src/main/java/com/adobe/campaign/tests/logparser/core/LogDataFactory.java b/src/main/java/com/adobe/campaign/tests/logparser/core/LogDataFactory.java
@@ -11,7 +11,6 @@
 
 import java.io.File;
 import java.io.FileFilter;
-import java.nio.charset.Charset;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -260,7 +259,7 @@ public static <T extends StdLogEntry> File generateDiffReport(LogData<T> in_logD
         sb.append("<tr>");
         sb.append("<th>New Errors</th>");
         sb.append("<td>");
-        sb.append(comparisonReport.values().stream().filter(l -> l.getChangeType().equals(LogDataComparison.ChangeType.ADDED)).count());
+        sb.append(comparisonReport.values().stream().filter(l -> l.getChangeType().equals(LogDataComparison.ChangeType.NEW)).count());
         sb.append("</td>");
         sb.append("</tr>");
         sb.append("<tr>");
@@ -313,12 +312,7 @@ public static <T extends StdLogEntry> File generateDiffReport(LogData<T> in_logD
         sb.append("</body>");
         File l_exportFile = new File(in_reportName + ".html");
 
-        if (l_exportFile.exists()) {
-            log.info("Deleting existing log export file {}...", l_exportFile.getPath());
-            if (!l_exportFile.delete()) {
-                throw new LogDataExportToFileException("We were unable to delete the file "+ l_exportFile.getPath());
-            }
-        }
+        com.adobe.campaign.tests.logparser.utils.FileUtils.cleanFile(l_exportFile);
 
         try {
             //FileUtils.writeStringToFile(l_exportFile, );
@@ -328,4 +322,5 @@ public static <T extends StdLogEntry> File generateDiffReport(LogData<T> in_logD
         }
         return l_exportFile;
     }
+
 }
diff --git a/src/main/java/com/adobe/campaign/tests/logparser/utils/FileUtils.java b/src/main/java/com/adobe/campaign/tests/logparser/utils/FileUtils.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2022 Adobe
+ * All Rights Reserved.
+ *
+ * NOTICE: Adobe permits you to use, modify, and distribute this file in
+ * accordance with the terms of the Adobe license agreement accompanying
+ * it.
+ */
+
+package com.adobe.campaign.tests.logparser.utils;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.File;
+
+public class FileUtils {
+    protected static Logger log = LogManager.getLogger();
+
+    /**
+     * Deletes a file if it exists
+     * @param in_file a file to delete
+     */
+    public static void cleanFile(File in_file) {
+        if (in_file.exists()) {
+            log.info("Deleting existing log export file {}...", in_file.getPath());
+            in_file.delete();
+        }
+    }
+}
diff --git a/src/test/java/com/adobe/campaign/tests/logparser/core/TestDifference.java b/src/test/java/com/adobe/campaign/tests/logparser/core/TestDifference.java
@@ -8,12 +8,17 @@
  */
 package com.adobe.campaign.tests.logparser.core;
 
+import com.adobe.campaign.tests.logparser.exceptions.LogDataExportToFileException;
+import com.adobe.campaign.tests.logparser.utils.FileUtils;
 import org.hamcrest.Matchers;
 import org.testng.annotations.Test;
 
 import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.Arrays;
-import java.util.List;
 import java.util.Map;
 
 import static org.hamcrest.MatcherAssert.assertThat;
@@ -96,7 +101,7 @@ public void simpleDifferenceEmptyLeftSide() {
                 l_diff.get("12").getDelta(), Matchers.equalTo(2));
         assertThat("We should have the correct key",
                 l_diff.get("12").getDeltaRatio(), Matchers.equalTo(100.0));
-        assertThat("We should classify this as removed", l_diff.get("12").getChangeType(), Matchers.equalTo(LogDataComparison.ChangeType.ADDED));
+        assertThat("We should classify this as removed", l_diff.get("12").getChangeType(), Matchers.equalTo(LogDataComparison.ChangeType.NEW));
 
         assertThat("We should have stored the original logData", l_diff.get("12").getLogEntry(), Matchers.equalTo(l_cubeData2.get("12")));
     }
@@ -157,7 +162,7 @@ public void simpleAddedRemoved() {
         assertThat("We should classify this as removed", l_diff.get("12").getChangeType(),
                 Matchers.equalTo(LogDataComparison.ChangeType.REMOVED));
         assertThat("We should classify this as removed", l_diff.get("13").getChangeType(),
-                Matchers.equalTo(LogDataComparison.ChangeType.ADDED));
+                Matchers.equalTo(LogDataComparison.ChangeType.NEW));
     }
 
     @Test
@@ -196,9 +201,6 @@ public void simpleAddedRemovedComplex() {
 
     }
 
-
-
-
     private static ParseDefinition fetchSTDDefinition() {
         ParseDefinition l_definition = new ParseDefinition("tmp");
         final ParseDefinitionEntry l_parseDefinitionEntryKey = new ParseDefinitionEntry("AAZ");