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Updated FileUtil.read() method

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nathan 2017-05-28 01:10:09 +02:00
parent 8ad232decd
commit 1c1b6b3dc0
1 changed files with 69 additions and 19 deletions
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88
src/dorkbox/util/FileUtil.java
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@ -21,6 +21,7 @@ import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
@ -84,6 +85,74 @@ class FileUtil {
public static byte[] ZIP_HEADER = {'P', 'K', (byte) 0x3, (byte) 0x4};
/**
* Converts the content of a file into a list of strings.
*
* @param file the input file to read. Throws an error if this file cannot be read.
*
* @return A list of strings, one line per string, of the content
*/
public static
List<String> read(final File file) throws IOException {
return read(file, false);
}
/**
* Converts the content of a file into a list of strings.
*
* @param file the input file to read. Throws an error if this file cannot be read.
* @param includeEmptyLines true if you want the resulting list of String to include blank/empty lines from the file
*
* @return A list of strings, one line per string, of the content
*/
public static
List<String> read(final File file, final boolean includeEmptyLines) throws IOException {
List<String> lines = new ArrayList<String>();
if (!file.canRead()) {
return lines;
}
FileReader fileReader = new FileReader(file);
try {
BufferedReader bin = new BufferedReader(fileReader);
String line;
if (includeEmptyLines) {
while (( line = bin.readLine()) != null) {
lines.add(line);
}
} else {
while (( line = bin.readLine()) != null) {
if (!line.isEmpty()) {
lines.add(line);
}
}
}
} finally {
IO.closeQuietly(fileReader);
}
return lines;
}
/**
* Reads the contents of the supplied input stream into a list of lines.
* Closes the reader on successful or failed completion.
*/
public static
List<String> readLines(Reader in) throws IOException {
List<String> lines = new ArrayList<String>();
try {
BufferedReader bin = new BufferedReader(in);
String line;
while ((line = bin.readLine()) != null) {
lines.add(line);
}
} finally {
IO.close(in);
}
return lines;
}
/**
* Renames a file. Windows has all sorts of problems which are worked around.
*
@ -142,25 +211,6 @@ class FileUtil {
}
}
/**
* Reads the contents of the supplied input stream into a list of lines.
* Closes the reader on successful or failed completion.
*/
public static
List<String> readLines(Reader in) throws IOException {
List<String> lines = new ArrayList<String>();
try {
BufferedReader bin = new BufferedReader(in);
String line;
while ((line = bin.readLine()) != null) {
lines.add(line);
}
} finally {
IO.close(in);
}
return lines;
}
/**
* Copies a files from one location to another. Overwriting any existing file at the destination.
*/