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/**
* 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 java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
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;
}
/**
* close InputStream.
*
* @param inputStream the inputstream to close
* @throws ValidationException
*/
public static void closeInputStream(InputStream inputStream) {
try {
if (inputStream != null) {
inputStream.close();
}
} catch (Exception e1) {
logger.error("FILE_IO" + ":" + "close InputStream error! "+ErrorCodes.FILE_IO+ " " + e1.getMessage(), e1);
throw new ValidationException(ErrorCodes.FILE_IO);
}
}
/**
* close OutputStream.
*
* @param outputStream the output stream to close
* @throws ValidationException
*/
public static void closeOutputStream(OutputStream outputStream) {
try {
if (outputStream != null) {
outputStream.close();
}
} catch (Exception e1) {
logger.error("FILE_IO" + ":" + "close OutputStream error! "+ErrorCodes.FILE_IO+ " " + e1.getMessage(), e1);
throw new ValidationException(ErrorCodes.FILE_IO);
}
}
public static void closeFileStream(FileInputStream ifs) {
try {
if (ifs != null) {
ifs.close();
}
} catch (Exception e1) {
logger.error("FILE_IO" + ":" + "close OutputStream error! "+ErrorCodes.FILE_IO+ " " + e1.getMessage(), e1);
throw new ValidationException(ErrorCodes.FILE_IO);
}
}
/**
* close zipFile.
*
* @param zipFile the zipFile to close
* @throws ValidationException
*/
public static void closeZipFile(ZipFile zipFile) {
try {
if (zipFile != null) {
zipFile.close();
}
} catch (IOException e1) {
logger.error("CLOSE_ZIPFILE" + ":" + "close ZipFile error! "+ErrorCodes.FILE_IO+ " " + e1.getMessage(), e1);
throw new ValidationException(ErrorCodes.FILE_IO);
}
}
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.error("JSON_GENERATION" + ":" + "JsonGenerationException Exception: writeJsonDatatoFile-->"+fileAbsPath+" : " +ErrorCodes.JSON_GENERATION_ERROR+" " + e.getMessage(), e);
throw new ValidationException(ErrorCodes.JSON_GENERATION_ERROR);
}
catch (JsonMappingException e)
{
logger.error("JSON_MAPPING" + ":" + "JsonMappingException Exception: writeJsonDatatoFile-->"+fileAbsPath+" : " +ErrorCodes.JSON_MAPPING_FAILED+" " + e.getMessage(), e);
throw new ValidationException(ErrorCodes.JSON_MAPPING_FAILED);
}
catch (IOException e)
{
logger.error("FILE_IO" + ":" + "IOException Exception: writeJsonDatatoFile-->"+fileAbsPath+" : " +ErrorCodes.FILE_IO+" " + e.getMessage(), e);
throw new ValidationException(ErrorCodes.FILE_IO);
}
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.error("JSON_PARSING" + ":" + "JsonParseException Exception: writeJsonDatatoFile-->"+fileAbsPath+" : " + e1.getMessage(), e1);
logger.error("CSAR extraction error ! " +ErrorCodes.PARSE_ERROR);
throw new ValidationException(ErrorCodes.PARSE_ERROR);
}
catch (JsonMappingException e1)
{
logger.error("JSON_MAPPING" + ":" + "JsonMappingException Exception: writeJsonDatatoFile-->"+fileAbsPath+" : " + e1.getMessage(), e1);
logger.error("CSAR extraction error ! " +ErrorCodes.JSON_MAPPING_FAILED);
throw new ValidationException(ErrorCodes.JSON_MAPPING_FAILED);
}
catch (IOException e1)
{
logger.error("FILE_IO" + ":" + "IOException Exception: writeJsonDatatoFile-->"+fileAbsPath+" : " + e1.getMessage(), e1);
logger.error("CSAR extraction error ! " +ErrorCodes.FILE_IO);
throw new ValidationException(ErrorCodes.FILE_IO);
}
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();
}
}
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