From c11f04644c6fb2165ac29baa9711a6c776d789ea Mon Sep 17 00:00:00 2001 From: Derek Bankieris Date: Mon, 14 Sep 2015 14:30:24 -0500 Subject: [PATCH] refs #118 Removed unused VarClient.java. --- .../java/src/trick/utils/VarClient.java | 262 ------------------ 1 file changed, 262 deletions(-) delete mode 100644 trick_source/java/src/trick/utils/VarClient.java diff --git a/trick_source/java/src/trick/utils/VarClient.java b/trick_source/java/src/trick/utils/VarClient.java deleted file mode 100644 index 4730e6d0..00000000 --- a/trick_source/java/src/trick/utils/VarClient.java +++ /dev/null @@ -1,262 +0,0 @@ -/* - * VarClient.java: A generic variable server client - * Developed for use by MTV, currently only handles a subset of Trick types in binary mode - * @author dstrauss - */ - -package trick.utils; - -import java.io.BufferedOutputStream; -import java.io.BufferedReader; -import java.io.DataOutputStream; -import java.io.IOException; -import java.io.InputStreamReader; -import java.net.Socket; -import java.net.UnknownHostException; - -public class VarClient -{ - protected Socket socket = null; - protected boolean ascii = true; - protected boolean binary = false; - protected boolean binary_nonames = false; - protected boolean sync = false; - protected BufferedReader vs_in = null; - protected DataOutputStream vs_out = null; - protected byte[] buf = new byte[8192]; // maximum binary packet size sent by var server - - public String results; // tabbed string returned by get() - public boolean paused = false; - - // Connect to variable server on host:port - public VarClient(String host, int port) throws IOException { - //String clientTag = "var_client"; - try { - socket = new Socket(host, port); - } catch (UnknownHostException e1) { - throw new IOException("VarClient could not connect to " + host + ":" + port); - } - try { - vs_out = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream())); - vs_in = new BufferedReader(new InputStreamReader(socket.getInputStream())); - } finally { - } - } - - // Send command to variable server - public void put(String command) throws IOException { - vs_out.writeBytes(command + "\n"); - vs_out.flush(); - } - - // Set var_ascii mode - public void setAscii() throws IOException { - if (!ascii) { - put("trick.sim_services.var_ascii()"); - ascii = true; - binary = false; - binary_nonames = false; - } - } - - // Set var_binary mode - public void setBinary() throws IOException { - if (!binary) { - put("trick.sim_services.var_binary()"); - binary = true; - binary_nonames = false; - ascii = false; - } - } - - // Set var_binary_nonames mode - public void setBinaryNoNames() throws IOException { - if (!binary_nonames) { - put("trick.sim_services.var_binary_nonames()"); - binary_nonames = true; - binary = false; - ascii = false; - } - } - - // Set var_sync mode - public void setSync() throws IOException { - if (!sync) { - put("trick.sim_services.var_sync(1)"); - sync = true; - } - } - - // Set var_pause - public void pause() throws IOException { - if (!paused) { - put("trick.sim_services.var_pause()"); - paused = true; - } - } - - // Set var_unpause - public void unpause() throws IOException { - if (paused) { - put("trick.sim_services.var_unpause()"); - paused = false; - } - } - - // in binary mode, must convert C types (little endian) to java types (big endian) - // return a java long (64bits) for bytes in buffer starting at i, size = 4 or 8 - private long convert_binary_data(byte[] buf, int i, int size) { - long byte1, byte2, byte3, byte4, byte5, byte6, byte7, byte8; - // int is size 4, longlong and double are size 8 - byte1 = (0xFF & ((int)buf[i])); - byte2 = (0xFF & ((int)buf[i+1])); - byte3 = (0xFF & ((int)buf[i+2])); - byte4 = (0xFF & ((int)buf[i+3])); - if (size==8) { - byte5 = (0xFF & ((int)buf[i+4])); - byte6 = (0xFF & ((int)buf[i+5])); - byte7 = (0xFF & ((int)buf[i+6])); - byte8 = (0xFF & ((int)buf[i+7])); - // little -> big endian - return (long) (byte8<<56 | byte7<<48 | byte6<<40 | byte5<<32 | byte4<<24 | byte3<<16 | byte2<<8 | byte1); - } else { - // little -> big endian - return (long) (byte4<<24 | byte3<<16 | byte2<<8 | byte1); - } - } - - /*** - public enum TrickType { VOID, CHAR, UCHAR, CHARSTRING, SHORT, USHORT, INT, UINT, LONG, ULONG, FLOAT, DOUBLE, - BITFIELD, UBITFIELD, LONGLONG, ULONGLONG, FILEPTR, BOOLEAN, WCHAR, WCHARSTRING, VOIDPTR, ENUM, STRUCT } - ***/ - - // Read ascii or binary data from variable server, return as tab delimited string for either mode - public String get() throws IOException { - return get(1); - } - public String get(int num_variables) throws IOException { - // num_variables (optional) is number of variables you expect to get (needed for binary multiple packet support) - - int bytes_read, index, msg_size, len, type, size; - int num_vars_processed, num_vars_in_msg; - int ival; - double dval; - String name, typename, val; - - if (ascii) { - results = vs_in.readLine(); - - } else { // binary - // handle multiple packets (continue reading if more variables and not eof of socket) - num_vars_processed = 0; - bytes_read = 0; - results = ""; - while ((num_vars_processed < num_variables) && (bytes_read != -1)) { - // read binary header - bytes_read = socket.getInputStream().read(buf, 0, 12); - if (bytes_read == -1) { // eof - throw new IOException("Connection closed"); - } - if ((int)buf[0] != 0) { - System.out.println("VarClient: Bad binary message indicator."); - return ""; - } - msg_size = (int)convert_binary_data(buf, 4, 4); - //System.out.println("msg size=" + msg_size); - num_vars_in_msg = (int)convert_binary_data(buf, 8, 4); - //System.out.println("numvars=" + num_vars_in_msg); - - // read binary data - bytes_read = socket.getInputStream().read(buf, 0, msg_size-8); - //System.out.println("bytes_read=" + bytes_read); - index = 0; - while (index < bytes_read) { - if (num_vars_processed > 0) { - results += "\t"; - } - if (!binary_nonames) { - len = (int)convert_binary_data(buf, index, 4); - index += 4; - name = new String(buf, index, len); - index += len; - } - type = (int)convert_binary_data(buf, index, 4); - index += 4; - size = (int)convert_binary_data(buf, index, 4); - val = ""; - //System.out.println("type=" + type + " size=" +size); - - index += 4; - switch (type) { - case 1 : // CHAR - typename = "CHAR"; - ival = (char)buf[index]; - val += ival; - break; - case 3 : // CHARSTRING - typename = "CHARSTRING"; - val = new String(buf, index, size); - break; - case 6 : // INT - typename = "INT"; - ival = (int)convert_binary_data(buf, index, 4); - val += ival; - break; - case 11 : // DOUBLE - typename = "DOUBLE"; - dval = Double.longBitsToDouble(convert_binary_data(buf, index, 8)); - val += dval; - break; - case 14 : // LONGLONG - typename = "LONGLONG"; - dval = (double)convert_binary_data(buf, index, 8); - val += dval; - break; - default : - typename = "???"; - System.out.println("VarClient: Unknown type " +type+ " in get()."); - break; - } - results += val; - index += size; - //System.out.println("name=" +name+ " " +typename+ " size=" +size+ " val=" +val+ " index=" +index); - num_vars_processed++; - } // while message data being parsed - } // end while num_vars_processed < num_variables - } // end binary - return results; - } - - // Flush any data remaining already sent by variable server - public void flush() { - int bytes_avail, bytes_read; - try { - bytes_avail = socket.getInputStream().available(); - if (bytes_avail > 0) { - bytes_read = socket.getInputStream().read(buf, 0, bytes_avail); - System.out.println("flushed " +bytes_read+ " of " +bytes_avail+ " bytes"); - } - } catch (IOException ioe) { - System.out.println("VarClient flush() " +ioe.toString() +"."); - } - } - - // Close the variable server connection - public void close() { - try { - if (vs_out != null) { - vs_out.close(); - } - if (vs_in != null) { - vs_in.close(); - } - if (socket != null) { - socket.close(); - socket = null; - } - } catch (IOException ioe) { - System.out.println("VarClient close() " +ioe.toString() +"."); - } - } - -}