| java.lang.Object
 com.nabhinc.util.IOUtil
| IOUtil | | public class IOUtil (Code) | | Provides utility methods for reading / writing from files / URLs
author:
Padmanabh Dabke
author:
(c) 2001 Nabh Information Systems, Inc. All Rights Reserved. |
| Method Summary | |
| public static void | convertToUTF(Properties props, String fromCharset)
Utility method to convert values in specified properties object to UTF-8.
Parameters:
props - The Properties object which values to be converted.
Parameters:
fromCharset - Characters encoding. | | public static void | copyDirectory(File srcDir, File destDir)
| | public static void | copyFile(File srcFile, File destFile, boolean overwrite)
| | public static void | copyFile(File srcFile, File destFile)
| | public static void | createFile(String filePath, String newContent, String charset)
Create a new file with content and file path specified. | | public static boolean | deleteDirectory(File dir)
| | public static void | deleteFile(String filename)
Delete a file. | | public static Serializable | deserializeObject(byte[] ser)
Reads a Java object from the byte array. | | public static Serializable | destringifyObject(String str)
Deserializes an object from a string. | | public static byte[] | getBytes(InputStream inputStream)
| | public static byte[] | getFileContentAsBytes(File file)
| | public static String | getFileContentAsString(File file, String charset)
Reads contents of a file as a string and encodes based on character encoding
specified. | | public static String | getFileContentAsString(File file)
Reads contents of a file as a UTF-8 encoded string. | | public static String | getInputStreamContentAsString(InputStream is, String charset)
| | public static String | getInputStreamContentAsString(InputStream is)
Reads contents of an input stream as a UTF-8 encoded string. | | public static String | getURLContentAsString(String urlStr)
Reads contents of a URL as a string. | | public static void | loadSystemPropertiesFromFile(String file)
Reads properties from a file and merges them with the System properties. | | public static void | loadSystemPropertiesFromURL(String urlStr)
Reads properties from a URL and merges them with the System properties. | | public static void | mergeWithSystemProperties(java.util.Properties props)
Merges given properties with system properties. | | public static void | saveAndBackupFile(File file, String newContent)
Create a backup (old content) of a file (with extension .bak) and update the content
of the specified file based on UTF-8 charset encoding. | | public static void | saveAndBackupFile(File file, String newContent, String charset)
Create a backup (old content) of a file (with extension .bak) and update the content
of the specified file. | | public static void | saveInputStreamContentToFile(InputStream is, String filePath)
| | public static byte[] | serializeObject(Serializable obj)
| | public static String | stringifyObject(Serializable obj)
|
| convertToUTF | | public static void convertToUTF(Properties props, String fromCharset) throws IOException(Code) | | Utility method to convert values in specified properties object to UTF-8.
Parameters:
props - The Properties object which values to be converted.
Parameters:
fromCharset - Characters encoding. The charset's name must be one of name supported java.nio.charset.Charset charset
throws:
IOException - |
| createFile | | public static void createFile(String filePath, String newContent, String charset) throws IOException(Code) | | Create a new file with content and file path specified. It will attempt to
overwrite the existing one if the file is writeable.
Parameters:
filePath - The file path
Parameters:
newContent - The file content
Parameters:
charset - Characters encoding. The charset's name must be one of name supported java.nio.charset.Charset charset
throws:
IOException - Thrown if the file path is not specified or trying to overwrite read only file. |
| deleteDirectory | | public static boolean deleteDirectory(File dir)(Code) | | |
| deleteFile | | public static void deleteFile(String filename) throws IOException(Code) | | Delete a file.
Parameters:
filename - File to be deleted.
throws:
IOException - If the file is not exist, or a directory, or not able to be deleted. |
| getFileContentAsString | | public static String getFileContentAsString(File file, String charset) throws java.io.IOException(Code) | | Reads contents of a file as a string and encodes based on character encoding
specified. Default character encoding is UTF-8.
String holding the file contents
Parameters:
file - File to be read
Parameters:
charset - Characters encoding. The charset's name must be one of name supported java.nio.charset.Charset charset
exception:
java.io.IOException - |
| loadSystemPropertiesFromFile | | public static void loadSystemPropertiesFromFile(String file) throws java.io.IOException(Code) | | Reads properties from a file and merges them with the System properties.
Parameters:
file - Property file path.
exception:
java.io.IOException - The property file could notbe found. |
| mergeWithSystemProperties | | public static void mergeWithSystemProperties(java.util.Properties props)(Code) | | Merges given properties with system properties.
|
| saveAndBackupFile | | public static void saveAndBackupFile(File file, String newContent) throws IOException(Code) | | Create a backup (old content) of a file (with extension .bak) and update the content
of the specified file based on UTF-8 charset encoding.
Parameters:
file - File which content to be updated.
Parameters:
newContent - New content
exception:
java.io.IOException - |
| saveAndBackupFile | | public static void saveAndBackupFile(File file, String newContent, String charset) throws IOException(Code) | | Create a backup (old content) of a file (with extension .bak) and update the content
of the specified file. Default character encoding is UTF-8, if charset is not specified.
If the file does not exist, it will attempt to create one.
Parameters:
file - File which content to be updated.
Parameters:
newContent - New content
Parameters:
charset - Characters encoding. The charset's name must be one of name supported java.nio.charset.Charset charset
exception:
java.io.IOException - |
| serializeObject | | public static byte[] serializeObject(Serializable obj) throws IOException(Code) | | Serializes the given object into a byte array
Parameters:
obj - Byte array containing serialized object.
throws:
IOException - |
| stringifyObject | | public static String stringifyObject(Serializable obj) throws IOException(Code) | | Creates a Base 64 encoded string representation of a serialized object
Parameters:
obj - Object to be serialized String representing the serialized object.
throws:
IOException - |
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