ConnectionProvider (reactor-netty 1.1.19)

All Superinterfaces:

Disposable

All Known Implementing Classes:

HttpResources, PooledConnectionProvider, TcpResources

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface ConnectionProvider
extends Disposable
```
A ConnectionProvider will produce Connection.

Since:

0.8

Author:

Stephane Maldini

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static interface`	`ConnectionProvider.AllocationStrategy<A extends ConnectionProvider.AllocationStrategy<A>>`
`static class`	`ConnectionProvider.Builder` Build a `ConnectionProvider` to cache and reuse a fixed maximum number of `Connection`.
`static interface`	`ConnectionProvider.ConnectionMetadata`
`static class`	`ConnectionProvider.ConnectionPoolSpec<SPEC extends ConnectionProvider.ConnectionPoolSpec<SPEC>>` Configuration for a connection pool.
`static class`	`ConnectionProvider.HostSpecificSpec` Configuration for a connection pool per remote host.
`static interface`	`ConnectionProvider.MeterRegistrar` A strategy to register which metrics are collected in a particular connection pool.

Nested classes/interfaces inherited from interface reactor.core.Disposable
Disposable.Composite, Disposable.Swap

Field Summary

Fields
Modifier and Type	Field and Description
`static long`	`DEFAULT_POOL_ACQUIRE_TIMEOUT` Default acquisition timeout (milliseconds) before error.
`static String`	`DEFAULT_POOL_LEASING_STRATEGY` Default leasing strategy (fifo, lifo), fallback to fifo.
`static int`	`DEFAULT_POOL_MAX_CONNECTIONS` Default max connections.
`static long`	`DEFAULT_POOL_MAX_IDLE_TIME` Default max idle time, fallback - max idle time is not specified.
`static long`	`DEFAULT_POOL_MAX_LIFE_TIME` Default max life time, fallback - max life time is not specified.
`static String`	`LEASING_STRATEGY_FIFO` The connection selection is first in, first out.
`static String`	`LEASING_STRATEGY_LIFO` The connection selection is last in, first out.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`Mono<? extends Connection>`	`acquire(TransportConfig config, ConnectionObserver connectionObserver, Supplier<? extends SocketAddress> remoteAddress, AddressResolverGroup<?> resolverGroup)` Return an existing or new `Connection` on subscribe.
`static ConnectionProvider.Builder`	`builder(String name)` Creates a builder for `ConnectionProvider`.
`static ConnectionProvider`	`create(String name)` Create a new `ConnectionProvider` to cache and reuse a fixed maximum number of `Connection`.
`static ConnectionProvider`	`create(String name, int maxConnections)` Create a new `ConnectionProvider` to cache and reuse a fixed maximum number of `Connection`.
`static ConnectionProvider`	`create(String name, int maxConnections, boolean metricsEnabled)` Create a new `ConnectionProvider` to cache and reuse a fixed maximum number of `Connection`.
`default void`	`dispose()` Dispose this ConnectionProvider.
`default Mono<Void>`	`disposeLater()` Returns a Mono that triggers the disposal of the ConnectionProvider when subscribed to.
`default void`	`disposeWhen(SocketAddress remoteAddress)` Dispose all connection pools for the specified remote address.
`default int`	`maxConnections()` Returns the maximum number of connections before starting pending.
`default Map<SocketAddress,Integer>`	`maxConnectionsPerHost()` Returns the maximum number of connections per host before starting pending.
`default ConnectionProvider.Builder`	`mutate()` Returns a builder to mutate properties of this `ConnectionProvider`.
`default String`	`name()` Returns `ConnectionProvider` name used for metrics.
`static ConnectionProvider`	`newConnection()` Return a `ConnectionProvider` that will always create a new `Connection`.

Methods inherited from interface reactor.core.Disposable
isDisposed

- Field Detail
  - DEFAULT_POOL_MAX_CONNECTIONS
```
static final int DEFAULT_POOL_MAX_CONNECTIONS
```
    Default max connections. Fallback to 2 * available number of processors (but with a minimum value of 16)
  - DEFAULT_POOL_ACQUIRE_TIMEOUT
```
static final long DEFAULT_POOL_ACQUIRE_TIMEOUT
```
    Default acquisition timeout (milliseconds) before error. If -1 will never wait to acquire before opening a new connection in an unbounded fashion. Fallback 45 seconds
  - DEFAULT_POOL_MAX_IDLE_TIME
```
static final long DEFAULT_POOL_MAX_IDLE_TIME
```
    Default max idle time, fallback - max idle time is not specified.
  - DEFAULT_POOL_MAX_LIFE_TIME
```
static final long DEFAULT_POOL_MAX_LIFE_TIME
```
    Default max life time, fallback - max life time is not specified.
  - LEASING_STRATEGY_FIFO
```
static final String LEASING_STRATEGY_FIFO
```
    The connection selection is first in, first out.
    
    See Also:
    
    Constant Field Values
  - LEASING_STRATEGY_LIFO
```
static final String LEASING_STRATEGY_LIFO
```
    The connection selection is last in, first out.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_POOL_LEASING_STRATEGY
```
static final String DEFAULT_POOL_LEASING_STRATEGY
```
    Default leasing strategy (fifo, lifo), fallback to fifo.
    - fifo - The connection selection is first in, first out
    - lifo - The connection selection is last in, first out
- Method Detail
  - builder
```
static ConnectionProvider.Builder builder(String name)
```
    Creates a builder for ConnectionProvider.
    
    Parameters:
    
    name - ConnectionProvider name
    
    Returns:
    
    a new ConnectionProvider builder
    
    Since:
    
    0.9.5
  - newConnection
```
static ConnectionProvider newConnection()
```
    Return a ConnectionProvider that will always create a new Connection.
    
    Returns:
    
    a ConnectionProvider that will always create a new Connection.
  - create
```
static ConnectionProvider create(String name)
```
    Create a new ConnectionProvider to cache and reuse a fixed maximum number of Connection.
    A Fixed ConnectionProvider will open up to the given max number of processors observed by this jvm (minimum 4). Further connections will be pending acquisition until DEFAULT_POOL_ACQUIRE_TIMEOUT and the default pending acquisition max count will be 500.
    
    Parameters:
    
    name - the connection pool name
    
    Returns:
    
    a new ConnectionProvider to cache and reuse a fixed maximum number of Connection
    
    Since:
    
    0.9.5
  - create
```
static ConnectionProvider create(String name,
                                 int maxConnections)
```
    Create a new ConnectionProvider to cache and reuse a fixed maximum number of Connection.
    A Fixed ConnectionProvider will open up to the given max connection value. Further connections will be pending acquisition until DEFAULT_POOL_ACQUIRE_TIMEOUT and the default pending acquisition max count will be 2 * max connections value.
    
    Parameters:
    
    name - the connection pool name
    
    maxConnections - the maximum number of connections before starting pending acquisition on existing ones
    
    Returns:
    
    a new ConnectionProvider to cache and reuse a fixed maximum number of Connection
    
    Since:
    
    0.9.5
  - create
```
static ConnectionProvider create(String name,
                                 int maxConnections,
                                 boolean metricsEnabled)
```
    Create a new ConnectionProvider to cache and reuse a fixed maximum number of Connection.
    A Fixed ConnectionProvider will open up to the given max connection value. Further connections will be pending acquisition until DEFAULT_POOL_ACQUIRE_TIMEOUT and the default pending acquisition max count will be 2 * max connections value.
    
    Parameters:
    
    name - the connection pool name
    
    maxConnections - the maximum number of connections before starting pending acquisition on existing ones
    
    metricsEnabled - true enables metrics collection; false disables it
    
    Returns:
    
    a new ConnectionProvider to cache and reuse a fixed maximum number of Connection
    
    Since:
    
    1.0.21
  - acquire
```
Mono<? extends Connection> acquire(TransportConfig config,
                                   ConnectionObserver connectionObserver,
                                   @Nullable
                                   Supplier<? extends SocketAddress> remoteAddress,
                                   @Nullable
                                   AddressResolverGroup<?> resolverGroup)
```
    Return an existing or new Connection on subscribe.
    
    Parameters:
    
    config - the transport configuration
    
    connectionObserver - the ConnectionObserver
    
    remoteAddress - the SocketAddress to connect to
    
    resolverGroup - the resolver which will resolve the address of the unresolved named address
    
    Returns:
    
    an existing or new Mono of Connection
  - disposeWhen
```
default void disposeWhen(SocketAddress remoteAddress)
```
    Dispose all connection pools for the specified remote address.
    This method has NOOP default implementation. ConnectionProvider implementations may decide to provide more specific implementation.
    
    Parameters:
    
    remoteAddress - the remote address
  - dispose
```
default void dispose()
```
    Dispose this ConnectionProvider. This method is NOT blocking. It is implemented as fire-and-forget. Use disposeLater() when you need to observe the final status of the operation, combined with Mono.block() if you need to synchronously wait for the underlying resources to be disposed.
    
    Specified by:
    
    dispose in interface Disposable
  - disposeLater
```
default Mono<Void> disposeLater()
```
    Returns a Mono that triggers the disposal of the ConnectionProvider when subscribed to.
    This method has NOOP default implementation. ConnectionProvider implementations may decide to provide more specific implementation.
    
    Returns:
    
    a Mono representing the completion of the ConnectionProvider disposal.
  - maxConnections
```
default int maxConnections()
```
    Returns the maximum number of connections before starting pending.
    
    Returns:
    
    the maximum number of connections before starting pending
  - maxConnectionsPerHost
```
@Nullable
default Map<SocketAddress,Integer> maxConnectionsPerHost()
```
    Returns the maximum number of connections per host before starting pending.
    
    Returns:
    
    the maximum number of connections per host before starting pending
  - mutate
```
@Nullable
default ConnectionProvider.Builder mutate()
```
    Returns a builder to mutate properties of this ConnectionProvider.
    
    Returns:
    
    a builder to mutate properties of this ConnectionProvider
    
    Since:
    
    1.0.14
  - name
```
@Nullable
default String name()
```
    Returns ConnectionProvider name used for metrics.
    
    Returns:
    
    ConnectionProvider name used for metrics
    
    Since:
    
    1.0.14

Interface ConnectionProvider

Nested Class Summary

Nested classes/interfaces inherited from interface reactor.core.Disposable

Field Summary

Method Summary

Methods inherited from interface reactor.core.Disposable

Field Detail

DEFAULT_POOL_MAX_CONNECTIONS

DEFAULT_POOL_ACQUIRE_TIMEOUT

DEFAULT_POOL_MAX_IDLE_TIME

DEFAULT_POOL_MAX_LIFE_TIME

LEASING_STRATEGY_FIFO

LEASING_STRATEGY_LIFO

DEFAULT_POOL_LEASING_STRATEGY

Method Detail

builder

newConnection

create

create

create

acquire

disposeWhen

dispose

disposeLater

maxConnections

maxConnectionsPerHost

mutate

name