設定自訂中繼資料 Java 與 GroupDocs Comparison

<repositories>
   <repository>
      <id>repository.groupdocs.com</id>
      <name>GroupDocs Repository</name>
      <url>https://releases.groupdocs.com/comparison/java/</url>
   </repository>
</repositories>

<dependencies>
   <dependency>
      <groupId>com.groupdocs</groupId>
      <artifactId>groupdocs-comparison</artifactId>
      <version>25.2</version>
   </dependency>
</dependencies>

import com.groupdocs.comparison.Comparer;

public class MetadataBasics {
    public static void main(String[] args) throws Exception {
        // This is your starting point - simple but functional
        try (Comparer comparer = new Comparer("path/to/your/source/document.docx")) {
            System.out.println("GroupDocs.Comparison initialized successfully!");
            // We'll build on this foundation
        }
    }
}

String outputFileName = "YOUR_OUTPUT_DIRECTORY/SetDocumentMetadataUserDefined.docx";

try (Comparer comparer = new Comparer("YOUR_DOCUMENT_DIRECTORY/SOURCE_WORD.docx")) {
    comparer.add("YOUR_DOCUMENT_DIRECTORY/TARGET1_WORD.docx");
    
    // This is where we'll add our metadata magic
}

final Path resultPath = comparer.compare(outputFileName,
        new SaveOptions.Builder()
                .setCloneMetadataType(MetadataType.FILE_AUTHOR)
                .setFileAuthorMetadata(
                        new FileAuthorMetadata.Builder()
                                .setAuthor("Tom")
                                .setCompany("GroupDocs")
                                .setLastSaveBy("Jack")
                                .build())
                .build());

SaveOptions saveOptions = new SaveOptions.Builder()
        .setCloneMetadataType(MetadataType.FILE_AUTHOR)
        .setFileAuthorMetadata(
                new FileAuthorMetadata.Builder()
                        .setAuthor("Tom")
                        .setCompany("GroupDocs")
                        .setLastSaveBy("Jack")
                        .build())
        .build();

// Now you can reuse this configuration across multiple comparisons

public SaveOptions buildMetadataOptions(String author, String company, boolean preserveOriginal) {
    SaveOptions.Builder builder = new SaveOptions.Builder()
            .setCloneMetadataType(MetadataType.FILE_AUTHOR);
    
    if (!preserveOriginal) {
        builder.setFileAuthorMetadata(
                new FileAuthorMetadata.Builder()
                        .setAuthor(author)
                        .setCompany(company)
                        .setLastSaveBy(getCurrentUser())
                        .build());
    }
    
    return builder.build();
}

// Automatically set reviewer and review date for legal documents
FileAuthorMetadata legalMetadata = new FileAuthorMetadata.Builder()
        .setAuthor(getCurrentReviewer())
        .setCompany("Legal Department")
        .setLastSaveBy(getCurrentReviewer())
        .build();

// Track multiple contributors in research documents
FileAuthorMetadata researchMetadata = new FileAuthorMetadata.Builder()
        .setAuthor("Dr. Smith")
        .setCompany("University Research Lab")
        .setLastSaveBy("Research Assistant")
        .build();

// Integrate with version control systems
FileAuthorMetadata devMetadata = new FileAuthorMetadata.Builder()
        .setAuthor(getGitUsername())
        .setCompany("Development Team")
        .setLastSaveBy(getCurrentDeveloper())
        .build();

// Good: Proper resource management
try (Comparer comparer = new Comparer("source.docx")) {
    // Do your comparison work here
    // Resources automatically cleaned up
}

// Avoid: Manual resource management
Comparer comparer = new Comparer("source.docx");
// Easy to forget cleanup, leading to memory leaks

public FileAuthorMetadata createContextualMetadata(DocumentContext context) {
    return new FileAuthorMetadata.Builder()
            .setAuthor(context.getCurrentUser())
            .setCompany(context.getOrganization())
            .setLastSaveBy(context.getLastModifier())
            .build();
}

try (Comparer comparer = new Comparer(sourceFile)) {
    comparer.add(targetFile);
    comparer.compare(outputFile, saveOptions);
} catch (Exception e) {
    logger.error("Failed to process document: " + sourceFile, e);
    // Implement your error handling strategy
    throw new DocumentProcessingException("Comparison failed", e);
}

// Load from properties file or database
Properties metadataConfig = loadMetadataConfiguration();
FileAuthorMetadata metadata = new FileAuthorMetadata.Builder()
        .setAuthor(metadataConfig.getProperty("default.author"))
        .setCompany(metadataConfig.getProperty("default.company"))
        .build();