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[improve] extract some common methods (#2691)
Signed-off-by: yuluo-yx <yuluo08290126@gmail.com>
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85 changes: 85 additions & 0 deletions
85
common/src/main/java/org/apache/hertzbeat/common/util/export/ExcelExportUtils.java
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/* | ||
* 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. | ||
*/ | ||
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package org.apache.hertzbeat.common.util.export; | ||
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import java.util.ArrayList; | ||
import java.util.List; | ||
import org.apache.poi.ss.usermodel.Cell; | ||
import org.apache.poi.ss.usermodel.CellStyle; | ||
import org.apache.poi.ss.usermodel.Font; | ||
import org.apache.poi.ss.usermodel.HorizontalAlignment; | ||
import org.apache.poi.ss.usermodel.Row; | ||
import org.apache.poi.ss.usermodel.Sheet; | ||
import org.apache.poi.ss.usermodel.Workbook; | ||
import org.springframework.util.ReflectionUtils; | ||
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/** | ||
* Excel export utils | ||
*/ | ||
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public final class ExcelExportUtils { | ||
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private ExcelExportUtils() { | ||
} | ||
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/** | ||
* set cell style | ||
* @param workbook workbook entity | ||
*/ | ||
public static CellStyle setCellStyle(Workbook workbook) { | ||
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CellStyle cellStyle = workbook.createCellStyle(); | ||
cellStyle.setAlignment(HorizontalAlignment.CENTER); | ||
return cellStyle; | ||
} | ||
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/** | ||
* @param clazz Export entity class | ||
*/ | ||
public static <T extends Class<?>> Sheet setSheet(String sheetName, Workbook workbook, T clazz) { | ||
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var sheet = workbook.createSheet(sheetName); | ||
sheet.setDefaultColumnWidth(20); | ||
sheet.setColumnWidth(9, 40 * 256); | ||
sheet.setColumnWidth(10, 40 * 256); | ||
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// set header style | ||
CellStyle headerCellStyle = workbook.createCellStyle(); | ||
Font headerFont = workbook.createFont(); | ||
headerFont.setBold(true); | ||
headerCellStyle.setFont(headerFont); | ||
headerCellStyle.setAlignment(HorizontalAlignment.CENTER); | ||
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List<String> headers = new ArrayList<>(); | ||
ReflectionUtils.doWithFields(clazz, field -> { | ||
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field.setAccessible(true); | ||
headers.add(field.getName()); | ||
}); | ||
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// set header | ||
Row headerRow = sheet.createRow(0); | ||
String[] headerArray = headers.toArray(new String[0]); | ||
for (int i = 0; i < headerArray.length; i++) { | ||
Cell cell = headerRow.createCell(i); | ||
cell.setCellValue(headerArray[i]); | ||
cell.setCellStyle(headerCellStyle); | ||
} | ||
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return sheet; | ||
} | ||
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} |
44 changes: 44 additions & 0 deletions
44
common/src/main/java/org/apache/hertzbeat/common/util/export/YamlExportUtils.java
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/* | ||
* 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. | ||
*/ | ||
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package org.apache.hertzbeat.common.util.export; | ||
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import java.io.OutputStream; | ||
import java.io.OutputStreamWriter; | ||
import java.nio.charset.StandardCharsets; | ||
import java.util.List; | ||
import org.yaml.snakeyaml.DumperOptions; | ||
import org.yaml.snakeyaml.Yaml; | ||
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/** | ||
* Yaml Export Utils | ||
*/ | ||
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public final class YamlExportUtils { | ||
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private YamlExportUtils() { | ||
} | ||
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public static <T> void exportWriteOs(List<T> list, OutputStream os) { | ||
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var options = new DumperOptions(); | ||
options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK); | ||
options.setIndent(2); | ||
options.setPrettyFlow(true); | ||
Yaml yaml = new Yaml(options); | ||
yaml.dump(list, new OutputStreamWriter(os, StandardCharsets.UTF_8)); | ||
} | ||
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} |
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