本文介绍了Cassandra与PHP - 调用cassandra-test.php我得到“调用未定义的方法CassandraClient :: batch_insert（）”。的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图使Cassandra在Windows 7上运行PHP的时刻。
我安装了cassandra和thrift ...
当我调用cassandra-test.php，我得到以下错误：
Im trying to make Cassandra run with PHP on Windows 7 at the moment.I installed cassandra and thrift...When I call the cassandra-test.php, I get the following error:
( ! ) Fatal error: Call to undefined method
CassandraClient :: batch_insert（）in
C：\xampp\htdocs\YiiPlayground\cassandra-test.php on line 75
调用堆栈
＃时间内存函数位置
1 0.0014 337552 {main}（）.. \cassandra-test.php：0
2 0.0138 776232 CassandraDB-> InsertRecord（
）..\cassandra-test.php：304
CassandraClient::batch_insert() in C:\xampp\htdocs\YiiPlayground\cassandra-test.php on line 75 Call Stack # Time Memory Function Location 1 0.0014 337552 {main}( ) ..\cassandra-test.php:0 2 0.0138 776232 CassandraDB->InsertRecord( ) ..\cassandra-test.php:304
cassandra-test.php如下所示：
The cassandra-test.php looks as follows:
<?php
// CassandraDB version 0.1
// Software Projects Inc
// http://www.softwareprojects.com
//
// Includes
$GLOBALS['THRIFT_ROOT'] = 'C:/xampp/htdocs/Yii/kallaspriit-Cassandra-PHP-Client-Library/thrift';
//$GLOBALS['THRIFT_ROOT'] = realpath('E:/00-REGIESTART/Programme/Cassandra/thrift');
require_once $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/Cassandra.php';
require_once $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/cassandra_types.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';
require_once $GLOBALS['THRIFT_ROOT'].'/protocol/TBinaryProtocol.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TFramedTransport.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TBufferedTransport.php';
class CassandraDB
{
// Internal variables
protected $socket;
protected $client;
protected $keyspace;
protected $transport;
protected $protocol;
protected $err_str = "";
protected $display_errors = 0;
protected $consistency = 1;
protected $parse_columns = 1;
// Functions
// Constructor - Connect to Cassandra via Thrift
function CassandraDB ($keyspace, $host = "127.0.0.1", $port = 9160)
{
// Initialize
$this->err_str = '';
try
{
// Store passed 'keyspace' in object
$this->keyspace = $keyspace;
// Make a connection to the Thrift interface to Cassandra
$this->socket = new TSocket($host, $port);
$this->transport = new TFramedTransport($this->socket, 1024, 1024);
$this->protocol = new TBinaryProtocolAccelerated($this->transport);
$this->client = new CassandraClient($this->protocol);
$this->transport->open();
}
catch (TException $tx)
{
// Error occured
$this->err_str = $tx->why;
$this->Debug($tx->why." ".$tx->getMessage());
}
}
// Insert Column into ColumnFamily
// (Equivalent to RDBMS Insert record to a table)
function InsertRecord ($table /* ColumnFamily */, $key /* ColumnFamily Key */, $record /* Columns */)
{
// Initialize
$this->err_str = '';
try
{
// Timestamp for update
$timestamp = time();
// Build batch mutation
$cfmap = array();
$cfmap[$table] = $this->array_to_supercolumns_or_columns($record, $timestamp);
// Insert
$this->client->batch_insert($this->keyspace, $key, $cfmap, $this->consistency);
// If we're up to here, all is well
$result = 1;
}
catch (TException $tx)
{
// Error occured
$result = 0;
$this->err_str = $tx->why;
$this->Debug($tx->why." ".$tx->getMessage());
}
// Return result
return $result;
}
// Insert SuperColumn into SuperColumnFamily
// (Equivalent to RDMBS Insert record to a "nested table")
function InsertRecordArray ($table /* SuperColumnFamily */, $key_parent /* Super CF */,
$record /* Columns */)
{
// Initialize
$err_str = '';
try
{
// Timestamp for update
$timestamp = time();
// Build batch mutation
$cfmap = array();
$cfmap[$table] = $this->array_to_supercolumns_or_columns($record, $timestamp);
// Insert
$this->client->batch_insert($this->keyspace, $key_parent, $cfmap, $this->consistency);
// If we're up to here, all is well
$result = 1;
}
catch (TException $tx)
{
// Error occured
$result = 0;
$this->err_str = $tx->why;
$this->Debug($tx->why." ".$tx->getMessage());
}
// Return result
return $result;
}
// Get record by key
function GetRecordByKey ($table /* ColumnFamily or SuperColumnFamily */, $key, $start_from="", $end_at="")
{
// Initialize
$err_str = '';
try
{
return $this->get($table, $key, NULL, $start_from, $end_at);
}
catch (TException $tx)
{
// Error occured
$this->err_str = $tx->why;
$this->Debug($tx->why." ".$tx->getMessage());
return array();
}
}
// Print debug message
function Debug ($str)
{
// If verbose is off, we're done
if (!$this->display_errors) return;
// Print
echo date("Y-m-d h:i:s")." CassandraDB ERROR: $str\r\n";
}
// Turn verbose debug on/off (Default is off)
function SetDisplayErrors($flag)
{
$this->display_errors = $flag;
}
// Set Consistency level (Default is 1)
function SetConsistency ($consistency)
{
$this->consistency = $consistency;
}
// Build cf array
function array_to_supercolumns_or_columns($array, $timestamp=null)
{
if(empty($timestamp)) $timestamp = time();
$ret = null;
foreach($array as $name => $value) {
$c_or_sc = new cassandra_ColumnOrSuperColumn();
if(is_array($value)) {
$c_or_sc->super_column = new cassandra_SuperColumn();
$c_or_sc->super_column->name = $this->unparse_column_name($name, true);
$c_or_sc->super_column->columns = $this->array_to_columns($value, $timestamp);
$c_or_sc->super_column->timestamp = $timestamp;
}
else
{
$c_or_sc = new cassandra_ColumnOrSuperColumn();
$c_or_sc->column = new cassandra_Column();
$c_or_sc->column->name = $this->unparse_column_name($name, true);
$c_or_sc->column->value = $value;
$c_or_sc->column->timestamp = $timestamp;
}
$ret[] = $c_or_sc;
}
return $ret;
}
// Parse column names for Cassandra
function parse_column_name($column_name, $is_column=true)
{
if(!$column_name) return NULL;
return $column_name;
}
// Unparse column names for Cassandra
function unparse_column_name($column_name, $is_column=true)
{
if(!$column_name) return NULL;
return $column_name;
}
// Convert supercolumns or columns into an array
function supercolumns_or_columns_to_array($array)
{
$ret = null;
for ($i=0; $i<count($array); $i++)
foreach ($array[$i] as $object)
{
if ($object)
{
// If supercolumn
if (isset($object->columns))
{
$record = array();
for ($j=0; $j<count($object->columns); $j++)
{
$column = $object->columns[$j];
$record[$column->name] = $column->value;
}
$ret[$object->name] = $record;
}
// (Otherwise - not supercolumn)
else
{
$ret[$object->name] = $object->value;
}
}
}
return $ret;
}
// Get record from Cassandra
function get($table, $key, $super_column=NULL, $slice_start="", $slice_finish="")
{
try
{
$column_parent = new cassandra_ColumnParent();
$column_parent->column_family = $table;
$column_parent->super_column = $this->unparse_column_name($super_column, false);
$slice_range = new cassandra_SliceRange();
$slice_range->start = $slice_start;
$slice_range->finish = $slice_finish;
$predicate = new cassandra_SlicePredicate();
$predicate->slice_range = $slice_range;
$resp = $this->client->get_slice($this->keyspace, $key, $column_parent, $predicate, $this->consistency);
return $this->supercolumns_or_columns_to_array($resp);
}
catch (TException $tx)
{
$this->Debug($tx->why." ".$tx->getMessage());
return array();
}
}
// Convert array to columns
function array_to_columns($array, $timestamp=null) {
if(empty($timestamp)) $timestamp = time();
$ret = null;
foreach($array as $name => $value) {
$column = new cassandra_Column();
$column->name = $this->unparse_column_name($name, false);
$column->value = $value;
$column->timestamp = $timestamp;
$ret[] = $column;
}
return $ret;
}
// Get error string
function ErrorStr()
{
return $this->err_str;
}
}
// Initialize Cassandra
$cassandra = new CassandraDB("SPI");
// Debug on
$cassandra->SetDisplayErrors(true);
// Insert record ("Columns" in Cassandra)
$record = array();
$record["name"] = "Mike Peters";
$record["email"] = "mike at softwareprojects.com";
if ($cassandra->InsertRecord('mytable', "Mike Peters", $record)) {
echo "Record (Columns) inserted successfully.\r\n";
}
// Print record
$record = $cassandra->GetRecordByKey('mytable', "Mike Peters");
print_r($record);
?>
有关这方面的任何想法，如何解决这个问题？
非常感谢！
Any ideas on this, how to fix this?Thanks a lot!
推荐答案
如果你能避免，你真的不想手工做Thrift。看看phpcassa库：
You really don't want to do Thrift by hand if you can avoid it. Take a look at phpcassa library:https://github.com/thobbs/phpcassa
哦，在上面，看起来像你想要'batch_mutate'而不是ln上的'batch_insert'。该方法在cassandra> 0.6.x
Oh, and in the above, looks like you want 'batch_mutate' not 'batch_insert' on ln. 75. That method changed names in versions of cassandra > 0.6.x
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