diff options
Diffstat (limited to 'csarvalidation/src/main/java/org/onap/validation/csar/FileUtil.java')
| -rw-r--r-- | csarvalidation/src/main/java/org/onap/validation/csar/FileUtil.java | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/csarvalidation/src/main/java/org/onap/validation/csar/FileUtil.java b/csarvalidation/src/main/java/org/onap/validation/csar/FileUtil.java new file mode 100644 index 0000000..3a9d9e8 --- /dev/null +++ b/csarvalidation/src/main/java/org/onap/validation/csar/FileUtil.java @@ -0,0 +1,298 @@ +/** + * Copyright 2017 Huawei Technologies Co., Ltd. + * + * Licensed 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.onap.validation.csar; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.fasterxml.jackson.core.JsonGenerationException; +import com.fasterxml.jackson.core.JsonParseException; +import com.fasterxml.jackson.databind.DeserializationFeature; +import com.fasterxml.jackson.databind.JsonMappingException; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.google.common.io.Resources; + +import java.io.BufferedOutputStream; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.util.ArrayList; +import java.util.Enumeration; +import java.util.zip.ZipEntry; +import java.util.zip.ZipFile; + + +public final class FileUtil { + + public static final Logger logger = LoggerFactory.getLogger(FileUtil.class); + + private static final int TRY_COUNT = 3; + + private FileUtil() { + + } + + + /** + * create dir. + * @param dir dir to create + * @return boolean + */ + public static boolean createDirectory(String dir) { + File folder = new File(dir); + int tryCount = 0; + while (tryCount < TRY_COUNT) { + tryCount++; + if (!folder.exists() && !folder.mkdirs()) { + continue; + } else { + return true; + } + } + + return folder.exists(); + } + + /** + * delete file. + * @param file the file to delete + * @return boolean + */ + public static boolean deleteFile(File file) { + String hintInfo = file.isDirectory() ? "dir " : "file "; + boolean isFileDeleted = file.delete(); + boolean isFileExist = file.exists(); + if (!isFileExist) { + if (isFileDeleted) { + logger.info("delete " + hintInfo + file.getAbsolutePath()); + } else { + isFileDeleted = true; + logger.info("file not exist. no need delete " + hintInfo + file.getAbsolutePath()); + } + } else { + logger.info("fail to delete " + hintInfo + file.getAbsolutePath()); + } + return isFileDeleted; + } + + + /** + * unzip zip file. + * @param zipFileName file name to zip + * @param extPlace extPlace + * @return unzip file name + * @throws IOException e1 + */ + public static ArrayList<String> unzip(String zipFileName, String extPlace) throws IOException { + ZipFile zipFile = null; + ArrayList<String> unzipFileNams = new ArrayList<String>(); + + try { + zipFile = new ZipFile(zipFileName); + Enumeration<?> fileEn = zipFile.entries(); + byte[] buffer = new byte[CommonConstants.BUFFER_SIZE]; + + while (fileEn.hasMoreElements()) { + InputStream input = null; + BufferedOutputStream bos = null; + try { + ZipEntry entry = (ZipEntry) fileEn.nextElement(); + if (entry.isDirectory()) { + continue; + } + + input = zipFile.getInputStream(entry); + File file = new File(extPlace, entry.getName()); + if (!file.getParentFile().exists()) { + createDirectory(file.getParentFile().getAbsolutePath()); + } + + bos = new BufferedOutputStream(new FileOutputStream(file)); + while (true) { + int length = input.read(buffer); + if (length == -1) { + break; + } + bos.write(buffer, 0, length); + } + unzipFileNams.add(file.getAbsolutePath()); + } finally { + closeOutputStream(bos); + closeInputStream(input); + } + } + } finally { + closeZipFile(zipFile); + } + return unzipFileNams; + } + + /** + * close InputStream. + * + * @param inputStream the inputstream to close + */ + public static void closeInputStream(InputStream inputStream) { + try { + if (inputStream != null) { + inputStream.close(); + } + } catch (Exception e1) { + logger.info("close InputStream error!"); + } + } + + /** + * close OutputStream. + * + * @param outputStream the output stream to close + */ + public static void closeOutputStream(OutputStream outputStream) { + try { + if (outputStream != null) { + outputStream.close(); + } + } catch (Exception e1) { + logger.info("close OutputStream error!"); + } + } + + public static void closeFileStream(FileInputStream ifs) { + try { + if (ifs != null) { + ifs.close(); + } + } catch (Exception e1) { + logger.info("close OutputStream error!"); + } + } + + /** + * close zipFile. + * + * @param zipFile the zipFile to close + */ + public static void closeZipFile(ZipFile zipFile) { + try { + if (zipFile != null) { + zipFile.close(); + zipFile = null; + } + } catch (IOException e1) { + logger.info("close ZipFile error!"); + } + } + + public static boolean checkFileExists(String filePath) + { + File file = new File(filePath); + return file.exists(); + } + + public static boolean deleteFile(String filePath) + { + File file = new File(filePath); + return deleteFile(file); + } + + public static boolean writeJsonDatatoFile(String fileAbsPath, Object obj) + { + logger.info("Write JsonData to file :"+fileAbsPath); + + boolean bResult = false; + if(checkFileExists(fileAbsPath)) + { + deleteFile(fileAbsPath); + } + + ObjectMapper mapper = new ObjectMapper(); + try + { + mapper.writeValue(new File(fileAbsPath), obj); + bResult = true; + } + catch (JsonGenerationException e) + { + logger.info("JsonGenerationException Exception: writeJsonDatatoFile-->"+fileAbsPath); + } + catch (JsonMappingException e) + { + logger.info("JsonMappingException Exception: writeJsonDatatoFile-->"+fileAbsPath); + } + catch (IOException e) + { + logger.info("IOException Exception: writeJsonDatatoFile-->"+fileAbsPath); + } + return bResult; + } + + public static <T> Object readJsonDatafFromFile(String fileAbsPath, Class<T> clazz) + { + if(!checkFileExists(fileAbsPath)) + { + logger.info("read JsonData from file , file not found :"+fileAbsPath); + return null; + } + + logger.info("read JsonData from file :"+fileAbsPath); + + T obj = null; + ObjectMapper mapper = new ObjectMapper(); + mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES); + try + { + obj = mapper.readValue(new File(fileAbsPath), clazz); + } + catch (JsonParseException e1) + { + logger.info("JsonParseException Exception: writeJsonDatatoFile-->"+fileAbsPath); + } + catch (JsonMappingException e1) + { + logger.info("JsonMappingException Exception: writeJsonDatatoFile-->"+fileAbsPath); + } + catch (IOException e1) + { + logger.info("IOException Exception: writeJsonDatatoFile-->"+fileAbsPath); + } + return obj; + } + + public static boolean deleteDirectory(String path) + { + File file = new File(path); + return deleteDirectory(file); + } + + public static boolean deleteDirectory(File file) + { + if (!file.exists()) + { + return true; + } + if (file.isDirectory()) + { + for (File f : file.listFiles()) + { + deleteDirectory(f); + } + } + return file.delete(); + } +} |