Class ConcatFilter

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable, java.lang.Readable, ChainableReader, Parameterizable

    public final class ConcatFilter
    extends BaseParamFilterReader
    implements ChainableReader
    Concats a file before and/or after the file.

    Example:

     <copy todir="build">
         <fileset dir="src" includes="*.java"/>
         <filterchain>
             <concatfilter prepend="apache-license-java.txt"/>
         </filterchain>
     </copy>
     

    Copies all java sources from src to build and adds the content of apache-license-java.txt add the beginning of each file.

    Since:
    1.6
    Version:
    2003-09-23
    • Field Summary

      • Fields inherited from class java.io.FilterReader

        in
      • Fields inherited from class java.io.Reader

        lock
    • Constructor Summary

      Constructors 
      Constructor Description
      ConcatFilter()
      Constructor for "dummy" instances.
      ConcatFilter​(java.io.Reader in)
      Creates a new filtered reader.
    • Constructor Detail

      • ConcatFilter

        public ConcatFilter()
        Constructor for "dummy" instances.
        See Also:
        BaseFilterReader()
      • ConcatFilter

        public ConcatFilter​(java.io.Reader in)
        Creates a new filtered reader.
        Parameters:
        in - A Reader object providing the underlying stream. Must not be null.
    • Method Detail

      • read

        public int read()
                 throws java.io.IOException
        Returns the next character in the filtered stream. If the desired number of lines have already been read, the resulting stream is effectively at an end. Otherwise, the next character from the underlying stream is read and returned.
        Overrides:
        read in class java.io.FilterReader
        Returns:
        the next character in the resulting stream, or -1 if the end of the resulting stream has been reached
        Throws:
        java.io.IOException - if the underlying stream throws an IOException during reading
      • setPrepend

        public void setPrepend​(java.io.File prepend)
        Sets prepend attribute.
        Parameters:
        prepend - new value
      • getPrepend

        public java.io.File getPrepend()
        Returns prepend attribute.
        Returns:
        prepend attribute
      • setAppend

        public void setAppend​(java.io.File append)
        Sets append attribute.
        Parameters:
        append - new value
      • getAppend

        public java.io.File getAppend()
        Returns append attribute.
        Returns:
        append attribute
      • chain

        public java.io.Reader chain​(java.io.Reader rdr)
        Creates a new ConcatReader using the passed in Reader for instantiation.
        Specified by:
        chain in interface ChainableReader
        Parameters:
        rdr - A Reader object providing the underlying stream. Must not be null.
        Returns:
        a new filter based on this configuration, but filtering the specified reader