115 lines
3.4 KiB
Java
115 lines
3.4 KiB
Java
/*
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* $Id: Awk.java,v 1.6 2006-11-22 15:12:03 bacon Exp $
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*/
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package ase.awk;
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import java.io.*;
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public abstract class Awk
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{
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// mode for open_source & close_source
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public static final int SOURCE_READ = 1;
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public static final int SOURCE_WRITE = 2;
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static
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{
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System.load ("c://projects//ase/awk/aseawk.dll");
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}
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private long __awk;
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public Awk () throws Exception
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{
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open ();
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}
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public native void close ();
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public native void parse () throws Exception;
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public native void run () throws Exception;
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private native void open () throws Exception;
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private native int setconsolename (long run_id, String name);
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public void setConsoleName (long run_id, String name) //throws Exception
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{
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/* TODO: setconsolename is not safe. for example, it can
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* crash the program if run_id is invalid. so this wrapper
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* needs to do some sanity check. */
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//if (setconsolename (run_id, name) == -1)
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// throw new Exception ("cannot set the consle name");
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setconsolename (run_id, name);
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}
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/* abstrace methods */
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protected abstract int open_source (int mode);
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protected abstract int close_source (int mode);
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protected abstract int read_source (char[] buf, int len);
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protected abstract int write_source (char[] buf, int len);
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protected int open_extio (Extio extio)
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{
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int type = extio.getType ();
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if (type == Extio.TYPE_CONSOLE) return open_console (extio);
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if (type == Extio.TYPE_FILE) return open_file (extio);
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/*if (type == Extio.TYPE_PIPE) return open_pipe (extio);
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if (type == Extio.TYPE_COPROC) return open_coproc (extio);*/
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return -1;
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}
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protected int close_extio (Extio extio)
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{
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int type = extio.getType ();
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if (type == Extio.TYPE_CONSOLE) return close_console (extio);
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if (type == Extio.TYPE_FILE) return close_file (extio);
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/*if (type == Extio.TYPE_PIPE) return close_pipe (extio);
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if (type == Extio.TYPE_COPROC) return close_coproc (extio);*/
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return -1;
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}
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protected int read_extio (Extio extio, char[] buf, int len)
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{
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int type = extio.getType ();
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if (type == Extio.TYPE_CONSOLE)
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return read_console (extio, buf, len);
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if (type == Extio.TYPE_FILE)
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return read_file (extio, buf, len);
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/*if (type == Extio.TYPE_PIPE)
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* return read_pipe (extio, buf, len);
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if (type == Extio.TYPE_COPROC)
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return read_coproc (extio, buf, len);*/
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return -1;
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}
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protected int write_extio (Extio extio, char[] buf, int len)
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{
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int type = extio.getType ();
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if (type == Extio.TYPE_CONSOLE)
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return write_console (extio, buf, len);
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if (type == Extio.TYPE_FILE)
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return write_file (extio, buf, len);
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/*if (type == Extio.TYPE_PIPE)
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* return write_pipe (extio, buf, len);
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if (type == Extio.TYPE_COPROC)
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return write_coproc (extio, buf, len);*/
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return -1;
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}
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protected int next_extio (Extio extio)
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{
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int type = extio.getType ();
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if (type == Extio.TYPE_CONSOLE) return next_console (extio);
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return -1;
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}
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protected abstract int open_console (Extio extio);
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protected abstract int close_console (Extio extio);
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protected abstract int read_console (Extio extio, char[] buf, int len);
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protected abstract int write_console (Extio extio, char[] buf, int len);
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protected abstract int next_console (Extio extio);
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protected abstract int open_file (Extio extio);
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protected abstract int close_file (Extio name);
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protected abstract int read_file (Extio extio, char[] buf, int len);
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protected abstract int write_file (Extio extio, char[] buf, int len);
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}
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