//snippet-sourcedescription:[ListUserDocs.java demonstrates how to list user docs for the current user.]
//snippet-keyword:[SDK for Java 2.0]
//snippet-keyword:[Code Sample]
//snippet-service:[Amazon WorkDocs]
//snippet-sourcetype:[full-example]
//snippet-sourcedate:[6/30/2020]
//snippet-sourceauthor:[scmacdon - aws]

package com.example.workdocs;

// snippet-start:[workdocs.java2.list_user_docs.import]
import java.util.ArrayList;
import java.util.List;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.workdocs.WorkDocsClient;
import software.amazon.awssdk.services.workdocs.model.DescribeFolderContentsRequest;
import software.amazon.awssdk.services.workdocs.model.DescribeFolderContentsResponse;
import software.amazon.awssdk.services.workdocs.model.DocumentMetadata;
import software.amazon.awssdk.services.workdocs.model.DocumentVersionMetadata;
import software.amazon.awssdk.services.workdocs.model.WorkDocsException;
import software.amazon.awssdk.services.workdocs.model.DescribeUsersResponse;
import software.amazon.awssdk.services.workdocs.model.DescribeUsersRequest;
import software.amazon.awssdk.services.workdocs.model.User;
// snippet-end:[workdocs.java2.list_user_docs.import]

public class ListUserDocs {


    public static void main(String[] args) throws Exception {
        // Based on WorkDocs dev guide code at http://docs.aws.amazon.com/workdocs/latest/developerguide/connect-workdocs-role.html

        final String USAGE = "\n" +
                "To run this example, supply your organization ID and a user email\n" +
                "\n" +
                "Ex: list_user_docs <organizationId> <useremail>\n";

        if (args.length < 2) {
             System.out.println(USAGE);
             System.exit(1);
         }

        String orgId = args[0];
        String userEmail = args[1];

        // Create a service client
        Region region = Region.US_WEST_2;
        WorkDocsClient workDocs = WorkDocsClient.builder()
                .region(region)
                .build();

        listDocs(workDocs, orgId, userEmail );
    }

    // snippet-start:[workdocs.java2.list_user_docs.main]
    public static void listDocs(WorkDocsClient workDocs, String orgId, String userEmail ) {

       try {
        String folderId = getUserFolder(workDocs, orgId, userEmail);

        DescribeFolderContentsRequest dfcRequest = DescribeFolderContentsRequest.builder()
                .folderId(folderId)
                .build();

        DescribeFolderContentsResponse result = workDocs.describeFolderContents(dfcRequest);

        List<DocumentMetadata> userDocs = new ArrayList<>();

        userDocs.addAll(result.documents());

        System.out.println("Docs for user " + userEmail + ":");
        System.out.println("");

        for (DocumentMetadata doc: userDocs) {
            DocumentVersionMetadata md = doc.latestVersionMetadata();
            System.out.println("Name:          " + md.name());
            System.out.println("Size (bytes):  " + md.size());
            System.out.println("Last modified: " + md.modifiedTimestamp());
            System.out.println("Doc ID:        " + doc.id());
            System.out.println("");
        }

       } catch(WorkDocsException e) {
           System.out.println(e.getLocalizedMessage());
           System.exit(1);
       }
    }

    private static String getUserFolder(WorkDocsClient workDocs, String orgId, String user) {

        List<User> wdUsers = new ArrayList<>();
        try {
        String marker = null;

        do {
            DescribeUsersResponse result;

            if(marker == null) {
                DescribeUsersRequest request = DescribeUsersRequest.builder()
                        .organizationId(orgId)
                        .query(user)
                        .build();
                result = workDocs.describeUsers(request);
            } else {
                DescribeUsersRequest request = DescribeUsersRequest.builder()
                        .organizationId(orgId)
                        .query(user)
                        .marker(marker)
                        .build();
                result = workDocs.describeUsers(request);
            }

            wdUsers.addAll(result.users());
            marker = result.marker();
        } while (marker != null);

        for (User wdUser : wdUsers) {
            return wdUser.rootFolderId();
        }

        } catch(WorkDocsException e) {
            System.out.println(e.getLocalizedMessage());
            System.exit(1);
        }
        return "";
    }
}
// snippet-end:[workdocs.java2.list_user_docs.main]
// snippet-end:[workdocs.java2.list_user_docs.complete]

Create ListUserDocs.java