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mirror of https://github.com/mongodb/mongo.git synced 2024-11-30 17:10:48 +01:00
mongodb/shell/utils.js
2009-10-12 16:11:52 -04:00

611 lines
14 KiB
JavaScript

friendlyEqual = function( a , b ){
if ( a == b )
return true;
if ( tojson( a ) == tojson( b ) )
return true;
return false;
}
doassert = function( msg ){
print( "assert: " + msg );
throw msg;
}
assert = function( b , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( b )
return;
doassert( "assert failed : " + msg );
}
assert._debug = false;
assert.eq = function( a , b , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( a == b )
return;
if ( ( a != null && b != null ) && friendlyEqual( a , b ) )
return;
doassert( "[" + tojson( a ) + "] != [" + tojson( b ) + "] are not equal : " + msg );
}
assert.neq = function( a , b , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( a != b )
return;
doassert( "[" + a + "] != [" + b + "] are equal : " + msg );
}
assert.soon = function( f, msg, timeout, interval ) {
if ( assert._debug && msg ) print( "in assert for: " + msg );
var start = new Date();
timeout = timeout || 30000;
interval = interval || 200;
var last;
while( 1 ) {
if ( typeof( f ) == "string" ){
if ( eval( f ) )
return;
}
else {
if ( f() )
return;
}
if ( ( new Date() ).getTime() - start.getTime() > timeout )
doassert( "assert.soon failed: " + f + ", msg:" + msg );
sleep( interval );
}
}
assert.throws = function( func , params , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
try {
func.apply( null , params );
}
catch ( e ){
return e;
}
doassert( "did not throw exception: " + msg );
}
assert.commandWorked = function( res , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( res.ok == 1 )
return;
doassert( "command failed: " + tojson( res ) + " : " + msg );
}
assert.commandFailed = function( res , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( res.ok == 0 )
return;
doassert( "command worked when it should have failed: " + tojson( res ) + " : " + msg );
}
assert.isnull = function( what , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( what == null )
return;
doassert( "supposed to null (" + ( msg || "" ) + ") was: " + tojson( what ) );
}
assert.lt = function( a , b , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( a < b )
return;
doassert( a + " is not less than " + b + " : " + msg );
}
assert.gt = function( a , b , msg ){
if ( assert._debug && msg ) print( "in assert for: " + msg );
if ( a > b )
return;
doassert( a + " is not greater than " + b + " : " + msg );
}
Object.extend = function( dst , src ){
for ( var k in src ){
dst[k] = src[k];
}
return dst;
}
argumentsToArray = function( a ){
var arr = [];
for ( var i=0; i<a.length; i++ )
arr[i] = a[i];
return arr;
}
isString = function( x ){
return typeof( x ) == "string";
}
isNumber = function(x){
return typeof( x ) == "number";
}
isObject = function( x ){
return typeof( x ) == "object";
}
String.prototype.trim = function() {
return this.replace(/^\s+|\s+$/g,"");
}
String.prototype.ltrim = function() {
return this.replace(/^\s+/,"");
}
String.prototype.rtrim = function() {
return this.replace(/\s+$/,"");
}
Date.timeFunc = function( theFunc , numTimes ){
var start = new Date();
numTimes = numTimes || 1;
for ( var i=0; i<numTimes; i++ ){
theFunc.apply( null , argumentsToArray( arguments ).slice( 2 ) );
}
return (new Date()).getTime() - start.getTime();
}
Date.prototype.tojson = function(){
return "\"" + this.toString() + "\"";
}
RegExp.prototype.tojson = RegExp.prototype.toString;
Array.contains = function( a , x ){
for ( var i=0; i<a.length; i++ ){
if ( a[i] == x )
return true;
}
return false;
}
Array.unique = function( a ){
var u = [];
for ( var i=0; i<a.length; i++){
var o = a[i];
if ( ! Array.contains( u , o ) ){
u.push( o );
}
}
return u;
}
Array.shuffle = function( arr ){
for ( var i=0; i<arr.length-1; i++ ){
var pos = i+Math.floor(Math.random()*(arr.length-i));
var save = arr[i];
arr[i] = arr[pos];
arr[pos] = save;
}
return arr;
}
Array.tojson = function( a , indent ){
if (!indent)
indent = "";
var s = "[\n";
indent += "\t";
for ( var i=0; i<a.length; i++){
s += indent + tojson( a[i], indent );
if ( i < a.length - 1 ){
s += ",\n";
}
}
if ( a.length == 0 ) {
s += indent;
}
indent = indent.substring(1);
s += "\n"+indent+"]";
return s;
}
Array.fetchRefs = function( arr , coll ){
var n = [];
for ( var i=0; i<arr.length; i ++){
var z = arr[i];
if ( coll && coll != z.getCollection() )
continue;
n.push( z.fetch() );
}
return n;
}
if ( ! ObjectId.prototype )
ObjectId.prototype = {}
ObjectId.prototype.toString = function(){
return this.str;
}
ObjectId.prototype.tojson = function(){
return "ObjectId(\"" + this.str + "\")";
}
ObjectId.prototype.isObjectId = true;
if ( typeof( DBPointer ) != "undefined" ){
DBPointer.prototype.fetch = function(){
assert( this.ns , "need a ns" );
assert( this.id , "need an id" );
return db[ this.ns ].findOne( { _id : this.id } );
}
DBPointer.prototype.tojson = function(indent){
return tojson({"ns" : this.ns, "id" : this.id}, indent);
}
DBPointer.prototype.getCollection = function(){
return this.ns;
}
DBPointer.prototype.toString = function(){
return "DBPointer " + this.ns + ":" + this.id;
}
}
else {
print( "warning: no DBPointer" );
}
if ( typeof( DBRef ) != "undefined" ){
DBRef.prototype.fetch = function(){
assert( this.$ref , "need a ns" );
assert( this.$id , "need an id" );
return db[ this.$ref ].findOne( { _id : this.$id } );
}
DBRef.prototype.tojson = function(indent){
return tojson({"$ref" : this.$ref, "$id" : this.$id}, indent);
}
DBRef.prototype.getCollection = function(){
return this.$ref;
}
DBRef.prototype.toString = function(){
return this.tojson();
}
}
else {
print( "warning: no DBRef" );
}
if ( typeof( BinData ) != "undefined" ){
BinData.prototype.tojson = function(){
return "BinData type: " + this.type + " len: " + this.len;
}
}
else {
print( "warning: no BinData" );
}
tojson = function( x, indent , nolint ){
if ( x == null )
return "null";
if ( x == undefined )
return "undefined";
if (!indent)
indent = "";
switch ( typeof x ){
case "string": {
var s = "\"";
for ( var i=0; i<x.length; i++ ){
if ( x[i] == '"' ){
s += "\\\"";
}
else
s += x[i];
}
return s + "\"";
}
case "number":
case "boolean":
return "" + x;
case "object":
return tojsonObject( x, indent , nolint );
case "function":
return x.toString();
default:
throw "tojson can't handle type " + ( typeof x );
}
}
tojsonObject = function( x, indent , nolint ){
var lineEnding = nolint ? " " : "\n";
var tabSpace = nolint ? " " : "\t";
assert.eq( ( typeof x ) , "object" , "tojsonObject needs object, not [" + ( typeof x ) + "]" );
if (!indent)
indent = "";
if ( typeof( x.tojson ) == "function" && x.tojson != tojson ) {
return x.tojson(indent,nolint);
}
if ( typeof( x.constructor.tojson ) == "function" && x.constructor.tojson != tojson ) {
return x.constructor.tojson( x, indent , nolint );
}
if ( x.toString() == "[object MaxKey]" )
return "{ $maxKey : 1 }";
if ( x.toString() == "[object MinKey]" )
return "{ $minKey : 1 }";
var s = "{" + lineEnding;
// push one level of indent
indent += tabSpace;
var total = 0;
for ( var k in x ) total++;
if ( total == 0 ) {
s += indent + tabSpace;
}
var num = 1;
for ( var k in x ){
var val = x[k];
if ( val == DB.prototype || val == DBCollection.prototype )
continue;
s += indent + "\"" + k + "\" : " + tojson( val, indent , nolint );
if (num != total) {
s += ",";
num++;
}
s += lineEnding;
}
// pop one level of indent
indent = indent.substring(1);
return s + indent + "}";
}
shellPrint = function( x ){
it = x;
if ( x != undefined )
shellPrintHelper( x );
if ( db ){
var e = db.getPrevError();
if ( e.err ) {
if( e.nPrev <= 1 )
print( "error on last call: " + tojson( e.err ) );
else
print( "an error " + tojson(e.err) + " occurred " + e.nPrev + " operations back in the command invocation" );
}
db.resetError();
}
}
printjson = function(x){
print( tojson( x ) );
}
shellPrintHelper = function( x ){
if ( typeof( x ) == "undefined" ){
if ( typeof( db ) != "undefined" && db.getLastError ){
var e = db.getLastError();
if ( e != null )
print( e );
}
return;
}
if ( x == null ){
print( "null" );
return;
}
if ( typeof x != "object" )
return print( x );
var p = x.shellPrint;
if ( typeof p == "function" )
return x.shellPrint();
var p = x.tojson;
if ( typeof p == "function" )
print( x.tojson() );
else
print( tojson( x ) );
}
shellHelper = function( command , rest , shouldPrint ){
command = command.trim();
var args = rest.trim().replace(/;$/,"").split( "\s+" );
if ( ! shellHelper[command] )
throw "no command [" + command + "]";
var res = shellHelper[command].apply( null , args );
if ( shouldPrint ){
shellPrintHelper( res );
}
return res;
}
help = shellHelper.help = function(){
print( "HELP" );
print( "\t" + "show dbs show database names");
print( "\t" + "show collections show collections in current database");
print( "\t" + "show users show users in current database");
print( "\t" + "show profile show most recent system.profile entries with time >= 1ms");
print( "\t" + "use <db name> set curent database to <db name>" );
print( "\t" + "db.help() help on DB methods");
print( "\t" + "db.foo.help() help on collection methods");
print( "\t" + "db.foo.find() list objects in collection foo" );
print( "\t" + "db.foo.find( { a : 1 } ) list objects in foo where a == 1" );
print( "\t" + "it result of the last line evaluated; use to further iterate");
}
shellHelper.use = function( dbname ){
db = db.getMongo().getDB( dbname );
print( "switched to db " + db.getName() );
}
shellHelper.it = function(){
if ( typeof( ___it___ ) == "undefined" || ___it___ == null ){
print( "no cursor" );
return;
}
shellPrintHelper( ___it___ );
}
shellHelper.show = function( what ){
assert( typeof what == "string" );
if( what == "profile" ) {
if( db.system.profile.count() == 0 ) {
print("db.system.profile is empty");
print("Use db.setProfilingLevel(2) will enable profiling");
print("Use db.system.profile.find() to show raw profile entries");
}
else {
print();
db.system.profile.find({ millis : { $gt : 0 } }).sort({$natural:-1}).limit(5).forEach( function(x){print(""+x.millis+"ms " + String(x.ts).substring(0,24)); print(x.info); print("\n");} )
}
return "";
}
if ( what == "users" ){
db.system.users.find().forEach( printjson );
return "";
}
if ( what == "collections" || what == "tables" ) {
db.getCollectionNames().forEach( function(x){print(x)} );
return "";
}
if ( what == "dbs" ) {
db.getMongo().getDBNames().sort().forEach( function(x){print(x)} );
return "";
}
throw "don't know how to show [" + what + "]";
}
if ( typeof( Map ) == "undefined" ){
Map = function(){
this._data = {};
}
}
Map.hash = function( val ){
if ( ! val )
return val;
switch ( typeof( val ) ){
case 'string':
case 'number':
case 'date':
return val.toString();
case 'object':
case 'array':
var s = "";
for ( var k in val ){
s += k + val[k];
}
return s;
}
throw "can't hash : " + typeof( val );
}
Map.prototype.put = function( key , value ){
var o = this._get( key );
var old = o.value;
o.value = value;
return old;
}
Map.prototype.get = function( key ){
return this._get( key ).value;
}
Map.prototype._get = function( key ){
var h = Map.hash( key );
var a = this._data[h];
if ( ! a ){
a = [];
this._data[h] = a;
}
for ( var i=0; i<a.length; i++ ){
if ( friendlyEqual( key , a[i].key ) ){
return a[i];
}
}
var o = { key : key , value : null };
a.push( o );
return o;
}
Map.prototype.values = function(){
var all = [];
for ( var k in this._data ){
this._data[k].forEach( function(z){ all.push( z.value ); } );
}
return all;
}
Math.sigFig = function( x , N ){
if ( ! N ){
N = 3;
}
var p = Math.pow( 10, N - Math.ceil( Math.log( Math.abs(x) ) / Math.log( 10 )) );
return Math.round(x*p)/p;
}