From 56df98ce4952239fbf7d0e99dbeb0e5c71531d6f Mon Sep 17 00:00:00 2001
From: sean.zhou <sean.zhou@dji.com>
Date: Fri, 18 Nov 2022 18:29:06 +0800
Subject: [PATCH] initial v1.3.0

---
 src/main/java/com/dji/sample/wayline/service/impl/WaylineFileServiceImpl.java |  109 +++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 99 insertions(+), 10 deletions(-)

diff --git a/src/main/java/com/dji/sample/wayline/service/impl/WaylineFileServiceImpl.java b/src/main/java/com/dji/sample/wayline/service/impl/WaylineFileServiceImpl.java
index f12979a..7502950 100644
--- a/src/main/java/com/dji/sample/wayline/service/impl/WaylineFileServiceImpl.java
+++ b/src/main/java/com/dji/sample/wayline/service/impl/WaylineFileServiceImpl.java
@@ -7,24 +7,36 @@
 import com.dji.sample.common.model.PaginationData;
 import com.dji.sample.component.oss.model.OssConfiguration;
 import com.dji.sample.component.oss.service.impl.OssServiceContext;
+import com.dji.sample.manage.model.enums.DeviceDomainEnum;
 import com.dji.sample.wayline.dao.IWaylineFileMapper;
+import com.dji.sample.wayline.model.dto.KmzFileProperties;
 import com.dji.sample.wayline.model.dto.WaylineFileDTO;
 import com.dji.sample.wayline.model.entity.WaylineFileEntity;
 import com.dji.sample.wayline.model.param.WaylineQueryParam;
 import com.dji.sample.wayline.service.IWaylineFileService;
+import org.dom4j.Document;
+import org.dom4j.DocumentException;
+import org.dom4j.Node;
+import org.dom4j.io.SAXReader;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.DigestUtils;
 import org.springframework.util.StringUtils;
+import org.springframework.web.multipart.MultipartFile;
 
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.sql.SQLException;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Optional;
-import java.util.UUID;
+import java.util.*;
 import java.util.stream.Collectors;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+import static com.dji.sample.wayline.model.dto.KmzFileProperties.WAYLINE_FILE_SUFFIX;
 
 /**
  * @author sean
@@ -94,13 +106,17 @@
         file.setWaylineId(UUID.randomUUID().toString());
         file.setWorkspaceId(workspaceId);
 
-        byte[] object = ossService.getObject(configuration.getBucket(), metadata.getObjectKey());
-        if (object.length == 0) {
-            throw new RuntimeException("The file " + metadata.getObjectKey() +
-                    " does not exist in the bucket[" + configuration.getBucket() + "].");
+        if (!StringUtils.hasText(file.getSign())) {
+            try (InputStream object = ossService.getObject(configuration.getBucket(), metadata.getObjectKey())) {
+                if (object.available() == 0) {
+                    throw new RuntimeException("The file " + metadata.getObjectKey() +
+                            " does not exist in the bucket[" + configuration.getBucket() + "].");
+                }
+                file.setSign(DigestUtils.md5DigestAsHex(object));
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
         }
-
-        file.setSign(DigestUtils.md5DigestAsHex(object));
         int insertId = mapper.insert(file);
         return insertId > 0 ? file.getId() : insertId;
     }
@@ -146,6 +162,78 @@
         return ossService.deleteObject(configuration.getBucket(), wayline.getObjectKey());
     }
 
+    @Override
+    public void importKmzFile(MultipartFile file, String workspaceId, String creator) {
+        Optional<WaylineFileDTO> waylineFileOpt = validKmzFile(file);
+        if (waylineFileOpt.isEmpty()) {
+            throw new RuntimeException("The file format is incorrect.");
+        }
+
+        try {
+            WaylineFileDTO waylineFile = waylineFileOpt.get();
+            waylineFile.setWaylineId(workspaceId);
+            waylineFile.setUsername(creator);
+
+            ossService.putObject(configuration.getBucket(), waylineFile.getObjectKey(), file.getInputStream());
+            this.saveWaylineFile(workspaceId, waylineFile);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private Optional<WaylineFileDTO> validKmzFile(MultipartFile file) {
+        String filename = file.getOriginalFilename();
+        if (Objects.nonNull(filename) && !filename.endsWith(WAYLINE_FILE_SUFFIX)) {
+            throw new RuntimeException("The file format is incorrect.");
+        }
+        try (ZipInputStream unzipFile = new ZipInputStream(file.getInputStream(), StandardCharsets.UTF_8)) {
+
+            ZipEntry nextEntry = unzipFile.getNextEntry();
+            while (Objects.nonNull(nextEntry)) {
+                boolean isWaylines = (KmzFileProperties.FILE_DIR_FIRST + File.separator + KmzFileProperties.FILE_DIR_SECOND_WAYLINES).equals(nextEntry.getName());
+                if (!isWaylines) {
+                    nextEntry = unzipFile.getNextEntry();
+                    continue;
+                }
+                SAXReader reader = new SAXReader();
+                Document document = reader.read(unzipFile);
+                if (!StandardCharsets.UTF_8.name().equals(document.getXMLEncoding())) {
+                    throw new RuntimeException("The file encoding format is incorrect.");
+                }
+
+                Node droneNode = document.selectSingleNode("//" + KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_DRONE_INFO);
+                Node payloadNode = document.selectSingleNode("//" + KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_PAYLOAD_INFO);
+                if (Objects.isNull(droneNode) || Objects.isNull(payloadNode)) {
+                    throw new RuntimeException("The file format is incorrect.");
+                }
+
+                String type = droneNode.valueOf(KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_DRONE_ENUM_VALUE);
+                String subType = droneNode.valueOf(KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_DRONE_SUB_ENUM_VALUE);
+                String payloadType = payloadNode.valueOf(KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_PAYLOAD_ENUM_VALUE);
+                String payloadSubType = payloadNode.valueOf(KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_PAYLOAD_SUB_ENUM_VALUE);
+                String templateId = document.valueOf("//" + KmzFileProperties.TAG_WPML_PREFIX + KmzFileProperties.TAG_TEMPLATE_ID);
+
+                if (!StringUtils.hasText(type) || !StringUtils.hasText(subType) ||
+                        !StringUtils.hasText(payloadSubType) || !StringUtils.hasText(payloadType) ||
+                        !StringUtils.hasText(templateId)) {
+                    throw new RuntimeException("The file format is incorrect.");
+                }
+
+                return Optional.of(WaylineFileDTO.builder()
+                        .droneModelKey(String.format("%s-%s-%s", DeviceDomainEnum.SUB_DEVICE.getVal(), type, subType))
+                        .payloadModelKeys(List.of(String.format("%s-%s-%s",DeviceDomainEnum.PAYLOAD.getVal(), payloadType, payloadSubType)))
+                        .objectKey(configuration.getObjectDirPrefix() + File.separator + filename)
+                        .name(filename.substring(0, filename.lastIndexOf(WAYLINE_FILE_SUFFIX)))
+                        .sign(DigestUtils.md5DigestAsHex(file.getInputStream()))
+                        .templateTypes(List.of(Integer.parseInt(templateId)))
+                        .build());
+            }
+
+        } catch (IOException | DocumentException e) {
+            e.printStackTrace();
+        }
+        return Optional.empty();
+    }
     /**
      * Convert database entity objects into wayline data transfer object.
      * @param entity
@@ -192,6 +280,7 @@
                             .map(String::valueOf)
                             .collect(Collectors.joining(",")))
                     .favorited(file.getFavorited())
+                    .sign(file.getSign())
                     .build();
         }
 

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