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annotate src/main/java/org/monetdb/merovingian/Control.java @ 973:32f246853ec4 default tip

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Optimisation, call connection.mapClobAsVarChar() and connection.mapBlobAsVarBinary() outside the for-loop, as it does not change.
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Thu, 10 Apr 2025 19:26:59 +0200 (3 hours ago)
parents ff075ed5ce81
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * SPDX-License-Identifier: MPL-2.0
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3 *
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4 * This Source Code Form is subject to the terms of the Mozilla Public
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5 * License, v. 2.0. If a copy of the MPL was not distributed with this
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6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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7 *
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8 * Copyright 2024, 2025 MonetDB Foundation;
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9 * Copyright August 2008 - 2023 MonetDB B.V.;
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10 * Copyright 1997 - July 2008 CWI.
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11 */
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12
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13 package org.monetdb.merovingian;
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15 import org.monetdb.mcl.net.MapiSocket;
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16 import org.monetdb.mcl.io.*;
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17 import org.monetdb.mcl.MCLException;
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18 import org.monetdb.mcl.parser.MCLParseException;
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19 import java.io.BufferedReader;
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20 import java.io.IOException;
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21 import java.io.InputStreamReader;
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22 import java.io.PrintStream;
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23 import java.net.Socket;
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24 import java.net.URI;
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25 import java.net.URISyntaxException;
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26 import java.util.ArrayList;
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27 import java.util.Collections;
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28 import java.util.List;
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29 import java.util.Properties;
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30
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31 /**
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32 * A Control class to perform operations on a remote merovingian
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33 * instance, using the TCP control protocol.
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34 *
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35 * This class implements the protocol specific bits to perform all
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36 * possible actions against a merovingian server that has remote control
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37 * facilities enabled.
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38 *
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39 * In the merovingian world, other merovingians in the vicinity are
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40 * known to each merovingian, allowing to perform cluster wide actions.
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41 * The implementation taken in this class is to require one known
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42 * merovingian to get insight in the entire network. Note that
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43 * connecting to a merovingian requires a passphrase that is likely to
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44 * be different for each merovingian.
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45 *
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46 * @author Fabian Groffen
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47 * @version 1.0
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48 */
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49 public class Control {
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50 /** The host to connect to */
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51 private final String host;
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52 /** The port to connect to */
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53 private final int port;
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54 /** The passphrase to use when connecting */
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55 private final String passphrase;
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56 /** The file we should write MapiSocket debuglog to */
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57 private String debug;
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58 private int soTimeout = -1; /* -1 means not initialized */
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60
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61 /**
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62 * Constructs a new Control object.
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63 *
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64 * @param host - IP address or DNS
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65 * @param port - port number
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66 * @param passphrase - phrase used to pass authorisation
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67 * @throws IllegalArgumentException if host, port or passphrase are
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68 * null or &lt;= 0
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69 */
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70 public Control(String host, int port, String passphrase)
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71 throws IllegalArgumentException
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72 {
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73 this.host = host;
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74 this.port = port;
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75 this.passphrase = passphrase;
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76 }
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77
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78 /**
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79 * Sets the socket timeout.
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80 *
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81 * @param timeout (in milliseconds) Use -1 to unset timeout (and use default)
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82 */
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83 public void setSoTimeout(int timeout) {
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84 soTimeout = timeout;
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85 }
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86
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87 /**
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88 * Instructs to write a MCL protocol debug log to the given file.
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89 * This affects any newly performed command, and can be changed
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90 * in between commands. Passing null to this method disables the
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91 * debug log.
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92 *
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93 * @param filename the filename to write debug information to, or null
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94 */
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95 public void setDebug(String filename) {
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96 this.debug = filename;
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97 }
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98
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99 private String controlHash(String pass, String salt) {
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100 long ho;
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101 long h = 0;
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102
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103 /* use a very simple hash function designed for a single int val
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104 * (hash buckets), we can make this more interesting if necessary in
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105 * the future.
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106 * http://www.cs.hmc.edu/~geoff/classes/hmc.cs070.200101/homework10/hashfuncs.html */
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107
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108 for (int i = 0; i < pass.length(); i++) {
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109 ho = h & 0xF8000000L;
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110 h <<= 5;
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111 h &= 0xFFFFFFFFL;
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112 h ^= ho >>> 27;
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113 h ^= (int)(pass.charAt(i));
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114 }
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115
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116 for (int i = 0; i < salt.length(); i++) {
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117 ho = h & 0xF8000000L;
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118 h <<= 5;
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119 h &= 0xFFFFFFFFL;
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120 h ^= ho >> 27;
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121 h ^= (int)(salt.charAt(i));
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122 }
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123
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124 return(Long.toString(h));
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125 }
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diff changeset
126
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
127 final static private String RESPONSE_OK = "OK";
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
128
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
129 private List<String> sendCommand(
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
130 String database, String command, boolean hasOutput)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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131 throws MerovingianException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
132 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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133 BufferedMCLReader min;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
134 BufferedMCLWriter mout;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
135 MapiSocket ms = new MapiSocket();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
136 ms.setDatabase("merovingian");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
137 ms.setLanguage("control");
630
ea8e3d011632 Allow setting socket read timeout on Control
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 610
diff changeset
138 if (soTimeout != -1)
ea8e3d011632 Allow setting socket read timeout on Control
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 610
diff changeset
139 ms.setSoTimeout(soTimeout);
0
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parents:
diff changeset
140 if (debug != null)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
141 ms.debug(debug);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
142 try {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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143 ms.connect(host, port, "monetdb", passphrase);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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144 min = ms.getReader();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
145 mout = ms.getWriter();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
146 } catch (MCLParseException e) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
147 throw new MerovingianException(e.getMessage());
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diff changeset
148 } catch (MCLException e) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
149 throw new MerovingianException(e.getMessage());
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diff changeset
150 } catch (AssertionError e) { // mcl panics
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
151 ms.close();
391
f523727db392 Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.*
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff changeset
152
0
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153 // Try old protocol instead
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Sjoerd Mullender <sjoerd@acm.org>
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154 Socket s;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
155 PrintStream out;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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156 BufferedReader in;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
157 s = new Socket(host, port);
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158 out = new PrintStream(s.getOutputStream());
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parents:
diff changeset
159 in = new BufferedReader(
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
160 new InputStreamReader(s.getInputStream()));
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
161 try {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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162 /* login ritual, step 1: get challenge from server */
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163 String response = in.readLine();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
164 if (response == null)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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165 throw new MerovingianException("server closed the connection");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
166
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167 if (!response.startsWith("merovingian:1:") &&
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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168 !response.startsWith("merovingian:2:"))
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169 throw new MerovingianException("unsupported merovingian server");
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170
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171 String[] tokens = response.split(":");
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Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
172 if (tokens.length < 3)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
173 throw new MerovingianException("did not understand merovingian server");
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174 String version = tokens[1];
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Sjoerd Mullender <sjoerd@acm.org>
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175 String token = tokens[2];
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176
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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177 response = controlHash(passphrase, token);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
178 if (version.equals("1")) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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179 out.print(response + "\n");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
180 } else if (version.equals("2")) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
181 // we only support control mode for now
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
182 out.print(response + ":control\n");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
183 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
184
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
185 response = in.readLine();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
186 if (response == null) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
187 throw new MerovingianException("server closed the connection");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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188 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
189
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
190 if (!response.substring(1).equals(RESPONSE_OK)) {
0
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parents:
diff changeset
191 throw new MerovingianException(response);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
192 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
193
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diff changeset
194 /* send command, form is simple: "<db> <cmd>\n" */
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
195 out.print(database + " " + command + "\n");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
196
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
197 /* Response has the first line either "OK\n" or an error
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
198 * message. In case of a command with output, the data will
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
199 * follow the first line */
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
200 response = in.readLine();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
201 if (response == null) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
202 throw new MerovingianException("server closed the connection");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
203 }
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
204 if (!response.substring(1).equals(RESPONSE_OK)) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
205 throw new MerovingianException(response);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
206 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
207
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
208 if (!hasOutput)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
209 return null;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
210
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
211 ArrayList<String> l = new ArrayList<String>();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
212 while ((response = in.readLine()) != null) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
213 l.add(response);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
214 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
215 return l;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
216 } finally {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
217 in.close();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
218 out.close();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
219 s.close();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
220 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
221 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
222
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
223 mout.writeLine(database + " " + command + "\n");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
224 ArrayList<String> l = new ArrayList<String>();
700
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
225 min.advance();
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
226 String tmpLine = min.getLine();
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
227 switch (min.getLineType()) {
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
228 case ERROR:
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
229 throw new MerovingianException(tmpLine.substring(6));
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
230 case RESULT:
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
231 if (!tmpLine.substring(1).equals(RESPONSE_OK))
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
232 throw new MerovingianException(tmpLine);
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
233 break;
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
234 default:
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
235 throw new MerovingianException("unexpected line: " + tmpLine);
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
236 }
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
237
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
238
700
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
239 lineloop:
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
240 while (true) {
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
241 min.advance();
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
242 switch (min.getLineType()) {
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
243 case PROMPT:
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
244 break lineloop;
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
245 case RESULT:
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
246 l.add(tmpLine.substring(1));
700
940e266eeccd Refactor BufferedMCLReader
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 632
diff changeset
247 continue lineloop;
632
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
248 default:
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
249 throw new MerovingianException("unexpected line: " + tmpLine);
e2fd07352866 Fix Control protocol handling
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 631
diff changeset
250 }
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
251 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
252
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
253 ms.close();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
254 return l;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
255 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
256
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
257 public void start(String database)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
258 throws MerovingianException, IOException
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259 {
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260 sendCommand(database, "start", false);
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261 }
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262
716
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263 public boolean isStopped(String database)
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264 throws MerovingianException, IOException
631
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265 {
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266 switch (getStatus(database).getState()) {
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267 case SABdbInactive:
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268 case SABdbCrashed:
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269 case SABdbIllegal:
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270 return true;
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271 case SABdbStarting:
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272 case SABdbRunning:
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273 return false;
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274 default:
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275 throw new IllegalStateException();
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276 }
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277 }
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278
0
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279 public void stop(String database)
391
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280 throws MerovingianException, IOException
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281 {
0
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282 sendCommand(database, "stop", false);
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283 }
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284
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285 public void kill(String database)
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286 throws MerovingianException, IOException
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287 {
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288 sendCommand(database, "kill", false);
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289 }
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290
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291 public void create(String database)
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292 throws MerovingianException, IOException
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293 {
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294 sendCommand(database, "create", false);
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295 }
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296
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297 public void destroy(String database)
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298 throws MerovingianException, IOException
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299 {
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300 sendCommand(database, "destroy", false);
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301 }
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302
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303 public void lock(String database)
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304 throws MerovingianException, IOException
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Sjoerd Mullender <sjoerd@acm.org>
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305 {
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306 sendCommand(database, "lock", false);
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307 }
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308
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309 public void release(String database)
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310 throws MerovingianException, IOException
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311 {
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312 sendCommand(database, "release", false);
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313 }
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314
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315 public void rename(String database, String newname)
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316 throws MerovingianException, IOException
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Sjoerd Mullender <sjoerd@acm.org>
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317 {
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318 if (newname == null)
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319 newname = ""; /* force error from merovingian */
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320
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321 sendCommand(database, "name=" + newname, false);
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322 }
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323
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Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
324 /**
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325 * Sets property for database to value. If value is null, the
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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326 * property is unset, and its inherited value becomes active again.
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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327 *
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328 * @param database the target database
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329 * @param property the property to set value for
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330 * @param value the value to set
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331 * @throws MerovingianException if performing the command failed at
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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332 * the merovingian side
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333 * @throws IOException if connecting to or communicating with
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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334 * merovingian failed
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Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
335 */
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336 public void setProperty(String database, String property, String value)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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337 throws MerovingianException, IOException
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parents:
diff changeset
338 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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339 /* inherit: set to empty string */
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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340 if (value == null)
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341 value = "";
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342
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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343 sendCommand(database, property + "=" + value, false);
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344 }
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345
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346 public void inheritProperty(String database, String property)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
347 throws MerovingianException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff changeset
348 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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349 setProperty(database, property, null);
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parents:
diff changeset
350 }
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351
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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352 public Properties getProperties(String database)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
353 throws MerovingianException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
354 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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355 Properties ret = new Properties();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
356 List<String> response = sendCommand(database, "get", true);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
357 for (String responseLine : response) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
358 if (responseLine.startsWith("#"))
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
359 continue;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
360 int pos = responseLine.indexOf("=");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
361 if (pos > 0) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
362 ret.setProperty(
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
363 responseLine.substring(0, pos),
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
364 responseLine.substring(pos + 1, responseLine.length()));
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
365 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
366 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
367 return ret;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
368 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
369
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Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
370 public Properties getDefaultProperties()
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
371 throws MerovingianException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
372 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
373 return(getProperties("#defaults"));
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
374 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
375
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
376 public SabaothDB getStatus(String database)
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
377 throws MerovingianException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
378 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
379 List<String> response = sendCommand(database, "status", true);
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
380 if (response.isEmpty())
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
381 throw new MerovingianException("communication error");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
382 return new SabaothDB(response.get(0));
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diff changeset
383 }
391
f523727db392 Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.*
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 350
diff changeset
384
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
385 /**
391
f523727db392 Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.*
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 350
diff changeset
386 * Test whether a specific database exists.
f523727db392 Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.*
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 350
diff changeset
387 *
194
1296dbcc4958 Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 90
diff changeset
388 * @param database name of database
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
389 * @return true, iff database already exists.
194
1296dbcc4958 Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 90
diff changeset
390 * @throws MerovingianException if performing the command failed at
1296dbcc4958 Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 90
diff changeset
391 * the merovingian side
1296dbcc4958 Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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392 * @throws IOException if connecting to or communicating with
1296dbcc4958 Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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393 * merovingian failed
0
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394 */
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395 public boolean exists(String database)
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396 throws MerovingianException, IOException
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397 {
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398 List<SabaothDB> all = getAllStatuses();
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399 for (SabaothDB db : all) {
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400 if (db.getName().equals(database)) {
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401 return true;
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402 }
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403 }
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404 return false;
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405 }
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406
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407 public List<SabaothDB> getAllStatuses()
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408 throws MerovingianException, IOException
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409 {
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410 List<SabaothDB> l = new ArrayList<SabaothDB>();
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411 List<String> response = sendCommand("#all", "status", true);
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412 try {
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413 for (String responseLine : response) {
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414 l.add(new SabaothDB(responseLine));
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415 }
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416 } catch (IllegalArgumentException e) {
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417 throw new MerovingianException(e.getMessage());
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418 }
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419 return Collections.unmodifiableList(l);
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420 }
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421
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422 public List<URI> getAllNeighbours()
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423 throws MerovingianException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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424 {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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425 List<URI> l = new ArrayList<URI>();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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426 List<String> response = sendCommand("anelosimus", "eximius", true);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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427 try {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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428 for (String responseLine : response) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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429 // format is <db>\t<uri>
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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430 String[] parts = responseLine.split("\t", 2);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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431 if (parts.length != 2)
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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432 throw new MerovingianException("invalid entry: " +
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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433 responseLine);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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434 if (parts[0].equals("*")) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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435 l.add(new URI(parts[1]));
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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436 } else {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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437 l.add(new URI(parts[1] + parts[0]));
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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438 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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439 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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440 } catch (URISyntaxException e) {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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441 throw new MerovingianException(e.getMessage());
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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442 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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443 return Collections.unmodifiableList(l);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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444 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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445 }