Package oracle.stellent.ridc.common.util

Class StreamUtil

java.lang.Object
oracle.stellent.ridc.common.util.StreamUtil
@Exported public class StreamUtil extends Object
Utility methods for working with streams

  • Constructor Details

    • StreamUtil

      public StreamUtil()

  • Method Details

    • copyStream

      public static void copyStream(InputStream inputStream, OutputStream outputStream, boolean closeInput, boolean closeOutput) throws IOException
      Copy the contents of the inputstream to the outputstream
      Parameters:
      inputStream - the inputstream to read
      outputStream - the outputstream to write to
      closeInput - true to close the inputstream on completion
      closeOutput - true to close the outputstream on completion
      Throws:
      IOException - if an IO error occurs

    • copyReader

      public static void copyReader(Reader reader, Writer writer, boolean closeInput, boolean closeOutput) throws IOException
      Copy the contents of the Reader to the Writer
      Parameters:
      reader - the Reader to read
      writer - the Writer to write to
      closeInput - true to close the inputstream on completion
      closeOutput - true to close the outputstream on completion
      Throws:
      IOException - if an IO error occurs

    • closeStream

      public static void closeStream(InputStream stream)
      Close a stream, ignoring any exceptions that occur during the close
      Parameters:
      stream - the stream to close

    • closeStream

      public static void closeStream(OutputStream stream)
      Close a stream, ignoring any exceptions that occur during the close
      Parameters:
      stream - the stream to close

    • closeReader

      public static void closeReader(Reader reader)
      Close a reader, ignoring any exceptions that occur during the close
      Parameters:
      reader - the reader to close

    • closeWriter

      public static void closeWriter(Writer writer)
      Close a writer, ignoring any exceptions that occur during the close
      Parameters:
      writer - the writer to close

    • getStringFromFile

      public static String getStringFromFile(File file) throws IOException
      Convert the contents of the file into a string
      Parameters:
      file - the file to read
      Returns:
      a string containing the file contents, using the default character encoding on the JVM
      Throws:
      IOException

    • getStringFromFile

      public static String getStringFromFile(File file, String encoding) throws IOException
      Convert the contents of the file into a string
      Parameters:
      file - the file to read
      encoding - the character encoding to use
      Returns:
      a string containing the file contents, using the default character encoding on the JVM
      Throws:
      IOException

    • getStringFromStream

      public static String getStringFromStream(InputStream stream) throws IOException
      Read the stream and create a string using the default system encoding
      Parameters:
      stream - the stream to read
      Returns:
      a string containing the streams contents
      Throws:
      IOException

    • getStringFromStream

      public static String getStringFromStream(InputStream stream, String encoding) throws IOException
      Read the stream and create a string from the contents, using the given encoding
      Parameters:
      stream - the inputstream to read
      encoding - the encoding to use
      Returns:
      the string containing the stream contents
      Throws:
      IOException

    • getStringFromStreamAlternative

      public static String getStringFromStreamAlternative(InputStream stream, String encoding) throws IOException
      Read the stream and create a string from the contents, using the given encoding
      Parameters:
      stream - the inputstream to read
      encoding - the encoding to use
      Returns:
      the string containing the stream contents
      Throws:
      IOException

    • readRawLine

      public static byte[] readRawLine(InputStream inputStream) throws IOException
      This code copied from HttpClient. Return byte array from an (unchunked) input stream. Stop reading when "\n" terminator encountered If the stream ends before the line terminator is found, the last part of the string will still be returned. If no input data available, null is returned.
      Parameters:
      inputStream - the stream to read from
      Returns:
      a byte array from the stream
      Throws:
      IOException - if an I/O problem occurs

    • readLine

      public static String readLine(InputStream inputStream, String charset) throws IOException
      This code copied from HttpClient.

      Read up to "\n" from an (unchunked) input stream. If the stream ends before the line terminator is found, the last part of the string will still be returned. If no input data available, null is returned.

      Parameters:
      inputStream - the stream to read from
      charset - charset of HTTP protocol elements
      Returns:
      a line from the stream
      Throws:
      IOException - if an I/O problem occurs
      Since:
      3.0

    • tryRead

      public static byte[] tryRead(InputStream inputStream, int length) throws IOException
      Try and read from the stream a specific number of bytes and return in byte[]
      Parameters:
      inputStream - the inputstream to read
      length - the number of bytes we are hoping to read
      Returns:
      the byte[] containing up to length bytes read from the stream
      Throws:
      IOException