| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * 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. |
| */ |
| package org.apache.atlas.repository.impexp; |
| |
| import org.apache.atlas.exception.AtlasBaseException; |
| import org.apache.atlas.model.impexp.AtlasExportResult; |
| import org.apache.atlas.model.instance.AtlasEntity; |
| import org.apache.atlas.model.typedef.AtlasTypesDef; |
| import org.apache.atlas.type.AtlasType; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.List; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipOutputStream; |
| |
| public class ZipSink { |
| private static final Logger LOG = LoggerFactory.getLogger(ZipSink.class); |
| |
| private ZipOutputStream zipOutputStream; |
| |
| public ZipSink(OutputStream outputStream) { |
| zipOutputStream = new ZipOutputStream(outputStream); |
| } |
| |
| public void add(AtlasEntity entity) throws AtlasBaseException { |
| String jsonData = convertToJSON(entity); |
| saveToZip(entity.getGuid(), jsonData); |
| } |
| |
| public void add(AtlasEntity.AtlasEntityWithExtInfo entityWithExtInfo) throws AtlasBaseException { |
| String jsonData = convertToJSON(entityWithExtInfo); |
| saveToZip(entityWithExtInfo.getEntity().getGuid(), jsonData); |
| } |
| |
| public void setResult(AtlasExportResult result) throws AtlasBaseException { |
| String jsonData = convertToJSON(result); |
| saveToZip(ZipExportFileNames.ATLAS_EXPORT_INFO_NAME, jsonData); |
| } |
| |
| public void setTypesDef(AtlasTypesDef typesDef) throws AtlasBaseException { |
| String jsonData = convertToJSON(typesDef); |
| saveToZip(ZipExportFileNames.ATLAS_TYPESDEF_NAME, jsonData); |
| } |
| |
| public void setExportOrder(List<String> result) throws AtlasBaseException { |
| String jsonData = convertToJSON(result); |
| saveToZip(ZipExportFileNames.ATLAS_EXPORT_ORDER_NAME, jsonData); |
| } |
| |
| public void close() { |
| try { |
| if(zipOutputStream != null) { |
| zipOutputStream.close(); |
| zipOutputStream = null; |
| } |
| } catch (IOException e) { |
| LOG.error("Error closing Zip file", e); |
| } |
| } |
| |
| private String convertToJSON(Object entity) { |
| return AtlasType.toJson(entity); |
| } |
| |
| private void saveToZip(ZipExportFileNames fileName, String jsonData) throws AtlasBaseException { |
| saveToZip(fileName.toString(), jsonData); |
| } |
| |
| private void saveToZip(String fileName, String jsonData) throws AtlasBaseException { |
| try { |
| addToZipStream(fileName.toString() + ".json", jsonData); |
| } catch (IOException e) { |
| throw new AtlasBaseException(String.format("Error writing file %s.", fileName), e); |
| } |
| } |
| |
| private void addToZipStream(String entryName, String payload) throws IOException { |
| |
| ZipEntry e = new ZipEntry(entryName); |
| zipOutputStream.putNextEntry(e); |
| |
| zipOutputStream.write(payload.getBytes()); |
| zipOutputStream.closeEntry(); |
| } |
| } |