How to use StringBuilder method of com.paypal.selion.utils.FileBackedStringBuffer class

Best SeLion code snippet using com.paypal.selion.utils.FileBackedStringBuffer.StringBuilder

Source:FileBackedStringBuffer.java Github

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...29import com.paypal.selion.logging.SeLionGridLogger;30/**31 * A string buffer that flushes its content to a temporary file whenever the internal string buffer becomes larger than32 * MAX. If the buffer never reaches that size, no file is ever created and everything happens in memory, so the overhead33 * compared to StringBuffer/StringBuilder is minimal.34 * 35 * To avoid entire string to be loaded in memory, we can use toWriter() method.36 * 37 */38public class FileBackedStringBuffer {39 private static final SeLionGridLogger LOGGER = SeLionGridLogger.getLogger(FileBackedStringBuffer.class);40 private static int MAX = 100000;41 private File file;42 private StringBuilder builder = new StringBuilder();43 private final int maxCharacters;44 public FileBackedStringBuffer() {45 this(MAX);46 }47 public FileBackedStringBuffer(int maxChars) {48 maxCharacters = maxChars;49 }50 public FileBackedStringBuffer append(CharSequence charSequence) {51 if (builder.length() > maxCharacters) {52 flushToFile();53 }54 if (charSequence.length() < MAX) {55 builder.append(charSequence);56 } else {57 flushToFile();58 try {59 copy(new StringReader(charSequence.toString()), new FileWriter(file, true));60 } catch (IOException e) {61 LOGGER.log(Level.WARNING, e.getMessage(), e);62 }63 }64 return this;65 }66 public void toWriter(Writer fw) {67 try {68 BufferedWriter bw = new BufferedWriter(fw);69 if (file == null) {70 bw.write(builder.toString());71 bw.close();72 } else {73 flushToFile();74 copy(new FileReader(file), bw);75 }76 } catch (IOException ex) {77 LOGGER.log(Level.WARNING, ex.getMessage(), ex);78 }79 }80 private static void copy(Reader input, Writer output) throws IOException {81 char[] buf = new char[MAX];82 while (true) {83 int length = input.read(buf);84 if (length < 0) {85 break;86 }87 output.write(buf, 0, length);88 }89 try {90 input.close();91 } catch (IOException ignore) {92 // NOSONAR93 }94 try {95 output.close();96 } catch (IOException ignore) {97 // NOSONAR98 }99 }100 private void flushToFile() {101 if (builder.length() == 0) {102 return;103 }104 if (file == null) {105 try {106 file = File.createTempFile("testng", "FileBackedStringBuffer");107 file.deleteOnExit();108 } catch (IOException e) {109 LOGGER.log(Level.WARNING, e.getMessage(), e);110 }111 }112 FileWriter fw;113 try {114 fw = new FileWriter(file, true);115 fw.append(builder);116 fw.close();117 } catch (IOException e) {118 LOGGER.log(Level.WARNING, e.getMessage(), e);119 }120 builder = new StringBuilder();121 }122 @Override123 public String toString() {124 String result = null;125 if (file == null) {126 result = builder.toString();127 return result;128 }129 flushToFile();130 try {131 result = readFile(file);132 } catch (IOException e) {133 LOGGER.log(Level.WARNING, e.getMessage(), e);134 }135 return result;136 }137 public static String readFile(File f) throws IOException {138 return readFile(new FileInputStream(f));139 }140 public static String readFile(InputStream is) throws IOException {141 StringBuilder result = new StringBuilder();142 InputStreamReader isr = new InputStreamReader(is);143 BufferedReader br = new BufferedReader(isr);144 try {145 String line = br.readLine();146 while (line != null) {147 result.append(line).append("\n");148 line = br.readLine();149 }150 } finally {151 br.close();152 isr.close();153 is.close();154 }155 return result.toString();...

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StringBuilder

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1FileBackedStringBuffer sb = new FileBackedStringBuffer();2sb.append("This is a test");3sb.append("This is another test");4sb.append("This is a third test");5sb.append("This is a fourth test");6sb.append("This is a fifth test");7sb.append("This is a sixth test");8sb.append("This is a seventh test");9sb.append("This is a eighth test");10sb.append("This is a ninth test");11sb.append("This is a tenth test");12sb.append("This is the last test");13sb.toString();14StringBuilder sb1 = new StringBuilder();15sb1.append("This is a test");16sb1.append("This is another test");17sb1.append("This is a third test");18sb1.append("This is a fourth test");19sb1.append("This is a fifth test");20sb1.append("This is a sixth test");21sb1.append("This is a seventh test");22sb1.append("This is a eighth test");23sb1.append("This is a ninth test");24sb1.append("This is a tenth test");25sb1.append("This is the last test");26sb1.toString();27StringBuffer sb2 = new StringBuffer();28sb2.append("This is a test");29sb2.append("This is another test");30sb2.append("This is a third test");31sb2.append("This is a fourth test");32sb2.append("This is a fifth test");33sb2.append("This is a sixth test");34sb2.append("This is a seventh test");35sb2.append("This is a eighth test");36sb2.append("This is a ninth test");37sb2.append("This is a tenth test");38sb2.append("This is the last test");39sb2.toString();40StrBuilder sb3 = new StrBuilder();41sb3.append("This is a test");42sb3.append("This is another test");43sb3.append("This is a third test");44sb3.append("This is a fourth test");45sb3.append("This is a fifth test");46sb3.append("This is a sixth test");47sb3.append("This is a seventh test");48sb3.append("This is a eighth test");49sb3.append("This is a ninth test");50sb3.append("This

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StringBuilder

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1FileBackedStringBuffer stringbuffer = new FileBackedStringBuffer();2stringbuffer.append("This is a sample text");3stringbuffer.append("This is another sample text");4stringbuffer.append("This is a third sample text");5stringbuffer.append("This is a fourth sample text");6stringbuffer.append("This is a fifth sample text");7stringbuffer.append("This is a sixth sample text");8stringbuffer.append("This is a seventh sample text");9stringbuffer.append("This is a eighth sample text");10stringbuffer.append("This is a ninth sample text");11stringbuffer.append("This is a tenth sample text");12stringbuffer.append("This is a eleventh sample text");13stringbuffer.append("This is a twelfth sample text");14stringbuffer.append("This is a thirteenth sample text");15stringbuffer.append("This is a fourteenth sample text");16stringbuffer.append("This is a fifteenth sample text");17stringbuffer.append("This is a sixteenth sample text");18stringbuffer.append("This is a seventeenth sample text");19stringbuffer.append("This is a eighteenth sample text");20stringbuffer.append("This is a nineteenth sample text");21stringbuffer.append("This is a twentieth sample text");22stringbuffer.append("This is a twenty-first sample text");23stringbuffer.append("This is a twenty-second sample text");24stringbuffer.append("This is a twenty-third sample text");25stringbuffer.append("This is a twenty-fourth sample text");26stringbuffer.append("This is a twenty-fifth sample text");27stringbuffer.append("This is a twenty-sixth sample text");28stringbuffer.append("This is a twenty-seventh sample text");29stringbuffer.append("This is a twenty-eighth sample text");30stringbuffer.append("This is a twenty-ninth sample text");31stringbuffer.append("This is a thirtieth sample text");32stringbuffer.append("This is a thirty-first sample text");33stringbuffer.append("This is a thirty-second sample text");34stringbuffer.append("This is a thirty-third sample text");35stringbuffer.append("This is a thirty-fourth sample text");36stringbuffer.append("This is a thirty-fifth sample text");37stringbuffer.append("This is a thirty-sixth sample text");38stringbuffer.append("This is a thirty-seventh sample text");39stringbuffer.append("This is a thirty-eighth sample text");40stringbuffer.append("This is a thirty-ninth sample text");41stringbuffer.append("This is a fourtieth sample text");

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StringBuilder

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1FileBackedStringBuffer fsb = new FileBackedStringBuffer();2fsb.append("This is a test");3fsb.toString();4FileBackedStringBuffer fsb = new FileBackedStringBuffer();5fsb.append("This is a test");6fsb.toString();7FileBackedStringBuffer fsb = new FileBackedStringBuffer();8fsb.append("This is a test");9fsb.toString();10FileBackedStringBuffer fsb = new FileBackedStringBuffer();11fsb.append("This is a test");12fsb.toString();13FileBackedStringBuffer fsb = new FileBackedStringBuffer();14fsb.append("This is a test");15fsb.toString();16FileBackedStringBuffer fsb = new FileBackedStringBuffer();17fsb.append("This is a test");18fsb.toString();19FileBackedStringBuffer fsb = new FileBackedStringBuffer();20fsb.append("This is a test");21fsb.toString();22FileBackedStringBuffer fsb = new FileBackedStringBuffer();23fsb.append("This is a test");24fsb.toString();25FileBackedStringBuffer fsb = new FileBackedStringBuffer();26fsb.append("This is a test");27fsb.toString();28FileBackedStringBuffer fsb = new FileBackedStringBuffer();29fsb.append("This is a test");30fsb.toString();31FileBackedStringBuffer fsb = new FileBackedStringBuffer();32fsb.append("This is a test");33fsb.toString();34FileBackedStringBuffer fsb = new FileBackedStringBuffer();35fsb.append("This is a test");36fsb.toString();37FileBackedStringBuffer fsb = new FileBackedStringBuffer();38fsb.append("This is a test");39fsb.toString();

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StringBuilder

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1import java.io.File;2import com.paypal.selion.utils.FileBackedStringBuffer;3File file = new File("test.txt");4FileBackedStringBuffer fileBackedStringBuffer = new FileBackedStringBuffer(file);5fileBackedStringBuffer.append("test");6fileBackedStringBuffer.close();7import java.io.File;8import java.io.FileWriter;9import java.io.IOException;10File file = new File("test.txt");11FileWriter fileWriter = new FileWriter(file);12StringBuilder stringBuilder = new StringBuilder();13stringBuilder.append("test");14fileWriter.write(stringBuilder.toString());15fileWriter.close();16import java.io.File;17import java.io.FileWriter;18import java.io.IOException;19File file = new File("test.txt");20FileWriter fileWriter = new FileWriter(file);21BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);22bufferedWriter.write("test");23bufferedWriter.close();24fileWriter.close();25import java.io.File;26import java.io.FileWriter;27import java.io.IOException;28import java.io.PrintStream;29File file = new File("test.txt");30FileWriter fileWriter = new FileWriter(file);31PrintStream printStream = new PrintStream(fileWriter);32printStream.println("test");33printStream.close();34fileWriter.close();35import java.io.File;36import java.io.FileWriter;37import java.io.IOException;38import java.io.PrintWriter;39File file = new File("test.txt");40FileWriter fileWriter = new FileWriter(file);41PrintWriter printWriter = new PrintWriter(fileWriter);42printWriter.println("test");43printWriter.close();44fileWriter.close();45import java.io.File;46import java.io.FileOutputStream;47import java.io.IOException;48File file = new File("test.txt");

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StringBuilder

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1FileBackedStringBuffer buffer = new FileBackedStringBuffer();2buffer.append("Hello");3buffer.append("World");4buffer.append("!");5buffer.append("This is a test");6buffer.append("of the String Builder");7buffer.append("class");8System.out.println(buffer.toString());9buffer.close();10FileBackedStringBuffer buffer = new FileBackedStringBuffer();11buffer.append("Hello");12buffer.append("World");13buffer.append("!");14buffer.append("This is a test");15buffer.append("of the String Builder");16buffer.append("class");17System.out.println(buffer.toString());18buffer.close();19FileBackedStringBuffer buffer = new FileBackedStringBuffer(new File("C:\\test\\test.txt"), "UTF-8");20buffer.append("Hello");21buffer.append("World");22buffer.append("!");23buffer.append("This is a test");24buffer.append("of the String Builder");25buffer.append("class");26System.out.println(buffer.toString());27buffer.close();28FileBackedStringBuffer buffer = new FileBackedStringBuffer(new File("C:\\test\\test.txt"));29buffer.append("Hello");30buffer.append("World");31buffer.append("!");32buffer.append("This is a test");33buffer.append("of the String Builder");34buffer.append("class");35System.out.println(buffer.toString());36buffer.close();37FileBackedStringBuffer buffer = new FileBackedStringBuffer("C:\\test\\test.txt", "UTF-8");38buffer.append("Hello");39buffer.append("World");40buffer.append("!");41buffer.append("This is a test");42buffer.append("of the String Builder");43buffer.append("class");44System.out.println(buffer.toString());45buffer.close();46FileBackedStringBuffer buffer = new FileBackedStringBuffer("C:\\test\\test.txt

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