+++ /dev/null
-/*
- * Parser.java
- * 03.03.27 aho creation
- */
-
-package uk.ac.cam.cl.xeno.xenctl;
-
-import java.io.BufferedReader;
-import java.io.FileReader;
-import java.io.InputStreamReader;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.util.StringTokenizer;
-import java.util.Vector;
-import java.util.Date;
-
-public class
-Parser
-{
- static String prompt = "vdmanager> ";
- static String default_addpartition_chunksize = "104857600"; /* 100M */
- static int default_sector_size = 512;
-
- PartitionManager pm;
- VirtualDiskManager vdm;
-
- Parser (PartitionManager pm, VirtualDiskManager vdm)
- {
- this.pm = pm;
- this.vdm = vdm;
- }
-
- void
- parse_main (String[] argv)
- {
- if (argv.length == 0)
- {
- parse_input(null);
- }
- else
- {
- parse_commandline(argv);
- }
- }
-
- void
- parse_input (String filename)
- {
- String line;
- BufferedReader in;
-
- if (filename != null)
- {
- try
- {
- in = new BufferedReader(new FileReader(filename));
- }
- catch (FileNotFoundException fnfe)
- {
- System.err.println (fnfe);
- return;
- }
- }
- else
- {
- in = new BufferedReader(new InputStreamReader(System.in));
- }
-
- try
- {
- if (filename == null)
- {
- System.out.print (prompt);
- }
- line = in.readLine();
- while (line != null)
- {
- StringTokenizer st = new StringTokenizer(line);
- Vector v = new Vector();
-
- while (st.hasMoreTokens())
- {
- v.add(st.nextToken());
- }
-
- if (parse_commandline((String[]) v.toArray(new String[v.size()])))
- {
- return;
- }
-
- if (filename == null)
- {
- System.out.print (prompt);
- }
- line = in.readLine();
- }
- }
- catch (IOException ioe)
- {
- System.err.println(ioe);
- }
-
- if (filename == null)
- {
- System.out.println ("");
- }
- return;
- }
-
- boolean
- parse_commandline (String[] commands)
- {
- if (commands.length == 0)
- {
- return false;
- }
-
- String keyword = commands[0].toLowerCase();
- if (keyword.equals("file"))
- {
- if (commands.length < 2)
- {
- System.out.println ("file [filename]");
- return false;
- }
- for (int i = 1; i < commands.length; i++)
- {
- System.out.println ("file " + commands[i]);
- parse_input(commands[i]);
- }
- }
- else if (keyword.equals("show"))
- {
- parse_show(commands);
- }
- else if (keyword.equals("addpartition"))
- {
- parse_addpartition(commands);
- }
- else if (keyword.equals("vdcreate"))
- {
- parse_vdcreate(commands);
- }
- else if (keyword.equals("vddelete"))
- {
- parse_vddelete(commands);
- }
- else if (keyword.equals("vdrefresh"))
- {
- parse_vdrefresh(commands);
- }
- else if (keyword.equals("vbdcreate"))
- {
- parse_vbdcreate(commands);
- }
- else if (keyword.equals("vbddelete"))
- {
- parse_vbddelete(commands);
- }
- else if (keyword.equals("vbdflush"))
- {
- vdm.flush_virtual_block_devices();
- }
- else if (keyword.equals("load"))
- {
- if (commands.length < 2)
- {
- System.out.println ("load <filename>");
- return false;
- }
- XML.load_state (pm, vdm, commands[1]);
- }
- else if (keyword.equals("save"))
- {
- if (commands.length < 2)
- {
- System.out.println ("save <filename>");
- return false;
- }
- XML.dump_state (pm, vdm, commands[1]);
- }
- else if (keyword.equals("help") ||
- keyword.equals("?"))
- {
- parse_help();
- }
- else if (keyword.equals("exit") ||
- keyword.equals("quit"))
- {
- return true;
- }
- else
- {
- System.out.println ("unknown command [" + commands[0] + "]. " +
- "try \"help\"");
- }
- return false;
- }
-
- void
- parse_vdcreate (String[] commands)
- {
- VirtualDisk vd;
-
- if (commands.length < 4)
- {
- System.out.println ("vdcreate name size expiry");
- return;
- }
-
- vd = vdm.create_virtual_disk(commands[1],
- Library.parse_size(commands[2]) / default_sector_size,
- new Date());
-
- System.out.println ("Virtual Disk created with key: " + vd.get_key());
- }
-
- void
- parse_vddelete (String[] commands)
- {
- if (commands.length < 2)
- {
- System.out.println ("vddelete key");
- return;
- }
-
- vdm.delete_virtual_disk(commands[1]);
- }
-
- void
- parse_vdrefresh (String[] commands)
- {
- if (commands.length < 3)
- {
- System.out.println ("vdrefresh key expiry");
- return;
- }
-
- vdm.refresh_virtual_disk(commands[1],
- new Date());
- }
-
- void
- parse_vbdcreate (String[] commands)
- {
- VirtualDisk vd;
- VirtualBlockDevice vbd;
-
- if (commands.length < 4)
- {
- System.out.println ("vbdcreate <key> <domain number> <vbd number>");
- return;
- }
-
- if (commands[1].startsWith("sd") ||
- commands[1].startsWith("hd"))
- {
- /*
- * this is a gross hack to allow you to create a virtual block
- * device that maps directly to a physical partition
- */
-
- /* find the appropriate partition */
- Partition partition = pm.get_partition(commands[1]);
- if (partition == null)
- {
- System.out.println ("vbdcreate error: couldn't find partition \"" +
- commands[1] + "\"");
- return;
- }
-
- /* create a virtual disk */
- vd = new VirtualDisk("vbd:" + commands[1]);
- vd.add_new_partition(partition, partition.nr_sects);
-
-
- /* display result */
- System.out.print("domain:" + commands[2] + " ");
- if (commands.length == 4)
- {
- System.out.print ("rw ");
- }
- else
- {
- System.out.print(commands[4] + " ");
- }
- System.out.print("segment:" + commands[3] + " ");
- System.out.print(vd.dump_xen());
- System.out.println("");
-
- return;
- }
-
- if (commands.length == 4)
- {
- vbd =
- vdm.create_virtual_block_device(commands[1],
- Integer.decode(commands[2]).intValue(),
- Integer.decode(commands[3]).intValue(),
- "rw");
- }
- else
- {
- vbd =
- vdm.create_virtual_block_device(commands[1],
- Integer.decode(commands[2]).intValue(),
- Integer.decode(commands[3]).intValue(),
- commands[4]);
- }
-
- /* display commandline to user */
- {
- vd = vdm.get_virtual_disk_key(commands[1]);
- System.out.println ("\n" + vd.dump_xen(vbd) + "\n");
- }
- }
-
- void
- parse_vbddelete (String[] commands)
- {
- if (commands.length < 3)
- {
- System.out.println ("vbddelete <domain number> <vbd number>");
- return;
- }
-
- vdm.delete_virtual_block_device(Integer.decode(commands[1]).intValue(),
- Integer.decode(commands[2]).intValue());
- }
-
- static String show_helptxt = "show <partitions | free | vd [vd number] | vbd>";
- void
- parse_show (String[] commands)
- {
- String subword;
-
- if (commands.length < 2)
- {
- System.out.println (show_helptxt);
- return;
- }
-
- subword = commands[1].toLowerCase();
- if (subword.equals("partition") ||
- subword.equals("partitions"))
- {
- System.out.println(pm.dump(true));
- }
- else if (subword.equals("vd"))
- {
- String text;
-
- if (commands.length < 3)
- {
- System.out.println(vdm.dump_virtualdisks());
- return;
- }
- text = vdm.dump_virtualdisk(Integer.decode(commands[2]).intValue());
- if (text == null)
- {
- System.out.println("show vd error: invalid virtual disk number");
- }
- else
- {
- System.out.println(text);
- }
- }
- else if (subword.equals("vbd"))
- {
- System.out.println(vdm.dump_virtualblockdevices());
- }
- else if (subword.equals("free"))
- {
- System.out.println(vdm.dump_free());
- }
- else
- {
- System.out.println (show_helptxt);
- return;
- }
- }
-
- void
- parse_addpartition(String[] commands)
- {
- String chunksize = default_addpartition_chunksize;
-
- if (commands.length > 3 || commands.length < 2)
- {
- System.out.println ("addpartition <partition number> [chunksize]");
- return;
- }
- if (commands.length == 3)
- {
- chunksize = commands[2];
- }
-
- System.out.println ("add partition " + commands[1] + " " + chunksize);
-
- vdm.add_xeno_partition(pm.get_partition(Integer.parseInt(commands[1])),
- Library.parse_size(chunksize)/default_sector_size);
- pm.add_xeno_partition(pm.get_partition(Integer.parseInt(commands[1])));
- }
-
- void
- parse_help()
- {
- System.out.println ("file <filename> " +
- "read the contents of a file as input to vdmanager");
- System.out.println ("addpartition <partition number> [chunksize]");
- System.out.println (" " +
- "add a partition as a xeno partition");
- System.out.println ("vdcreate <name> <size> <expiry>");
- System.out.println (" " +
- "create a new virtual disk");
- System.out.println ("vddelete <key> " +
- "delete a virtual disk");
- System.out.println ("vdrefresh <key> <expiry>");
- System.out.println (" " +
- "reset virtual disk expiry");
- System.out.println ("vbdcreate <key> <domain number> <vbd number> [rw|ro]");
- System.out.println (" " +
- "create a new virtual block device");
- System.out.println ("vbddelete <domain number> <vbd number>");
- System.out.println (" " +
- "delete a new virtual block device");
- System.out.println ("vbdflush " +
- "remove all virtual block devices");
- System.out.println ("show partitions " +
- "display a complete list of disk partitions");
- System.out.println ("show vd <vd number> " +
- "display virtual disk information");
- System.out.println ("show vbd " +
- "display virtual virtual block device list");
- System.out.println ("show free " +
- "display details about unallocated space");
- System.out.println ("load <filename> " +
- "load new state from file");
- System.out.println ("save <filename> " +
- "save state to file");
- System.out.println ("help " +
- "display this help message");
- System.out.println ("quit " +
- "exit");
- }
-}
projects / xen.git / commitdiff