com.unboundid.ldap.sdk.LDAPRequest Maven / Gradle / Ivy
/*
* Copyright 2007-2017 UnboundID Corp.
* All Rights Reserved.
*/
/*
* Copyright (C) 2008-2017 UnboundID Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.sdk;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import com.unboundid.util.InternalUseOnly;
import com.unboundid.util.Extensible;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import static com.unboundid.util.Validator.*;
/**
* This class provides a framework that should be extended by all types of LDAP
* requests. It provides methods for interacting with the set of controls to
* include as part of the request and configuring a response timeout, which is
* the maximum length of time that the SDK should wait for a response to the
* request before returning an error back to the caller.
*
* {@code LDAPRequest} objects are not immutable and should not be considered
* threadsafe. A single {@code LDAPRequest} object instance should not be used
* concurrently by multiple threads, but instead each thread wishing to process
* a request should have its own instance of that request. The
* {@link #duplicate()} method may be used to create an exact copy of a request
* suitable for processing by a separate thread.
*
* Note that even though this class is marked with the @Extensible annotation
* type, it should not be directly subclassed by third-party code. Only the
* {@link ExtendedRequest} and {@link SASLBindRequest} subclasses are actually
* intended to be extended by third-party code.
*/
@Extensible()
@ThreadSafety(level=ThreadSafetyLevel.NOT_THREADSAFE)
public abstract class LDAPRequest
implements ReadOnlyLDAPRequest
{
/**
* The set of controls that will be used if none were provided.
*/
static final Control[] NO_CONTROLS = new Control[0];
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -2040756188243320117L;
// Indicates whether to automatically follow referrals returned while
// processing this request.
private Boolean followReferrals;
// The set of controls for this request.
private Control[] controls;
// The intermediate response listener for this request.
private IntermediateResponseListener intermediateResponseListener;
// The maximum length of time in milliseconds to wait for the response from
// the server. The default value of -1 indicates that it should be inherited
// from the associated connection.
private long responseTimeout;
/**
* Creates a new LDAP request with the provided set of controls.
*
* @param controls The set of controls to include in this LDAP request.
*/
protected LDAPRequest(final Control[] controls)
{
if (controls == null)
{
this.controls = NO_CONTROLS;
}
else
{
this.controls = controls;
}
followReferrals = null;
responseTimeout = -1L;
intermediateResponseListener = null;
}
/**
* Retrieves the set of controls for this request. The caller must not alter
* this set of controls.
*
* @return The set of controls for this request.
*/
public final Control[] getControls()
{
return controls;
}
/**
* {@inheritDoc}
*/
public final List getControlList()
{
return Collections.unmodifiableList(Arrays.asList(controls));
}
/**
* {@inheritDoc}
*/
public final boolean hasControl()
{
return (controls.length > 0);
}
/**
* {@inheritDoc}
*/
public final boolean hasControl(final String oid)
{
ensureNotNull(oid);
for (final Control c : controls)
{
if (c.getOID().equals(oid))
{
return true;
}
}
return false;
}
/**
* {@inheritDoc}
*/
public final Control getControl(final String oid)
{
ensureNotNull(oid);
for (final Control c : controls)
{
if (c.getOID().equals(oid))
{
return c;
}
}
return null;
}
/**
* Updates the set of controls associated with this request. This must only
* be called by {@link UpdatableLDAPRequest}.
*
* @param controls The set of controls to use for this request.
*/
final void setControlsInternal(final Control[] controls)
{
this.controls = controls;
}
/**
* {@inheritDoc}
*/
public final long getResponseTimeoutMillis(final LDAPConnection connection)
{
if ((responseTimeout < 0L) && (connection != null))
{
return connection.getConnectionOptions().getResponseTimeoutMillis();
}
else
{
return responseTimeout;
}
}
/**
* Specifies the maximum length of time in milliseconds that processing on
* this operation should be allowed to block while waiting for a response
* from the server. A value of zero indicates that no timeout should be
* enforced. A value that is less than zero indicates that the default
* response timeout for the underlying connection should be used.
*
* @param responseTimeout The maximum length of time in milliseconds that
* processing on this operation should be allowed to
* block while waiting for a response from the
* server.
*/
public final void setResponseTimeoutMillis(final long responseTimeout)
{
if (responseTimeout < 0L)
{
this.responseTimeout = -1L;
}
else
{
this.responseTimeout = responseTimeout;
}
}
/**
* Indicates whether to automatically follow any referrals encountered while
* processing this request. If a value has been set for this request, then it
* will be returned. Otherwise, the default from the connection options for
* the provided connection will be used.
*
* @param connection The connection whose connection options may be used in
* the course of making the determination. It must not
* be {@code null}.
*
* @return {@code true} if any referrals encountered during processing should
* be automatically followed, or {@code false} if not.
*/
public final boolean followReferrals(final LDAPConnection connection)
{
if (followReferrals == null)
{
return connection.getConnectionOptions().followReferrals();
}
else
{
return followReferrals;
}
}
/**
* Indicates whether automatic referral following is enabled for this request.
*
* @return {@code Boolean.TRUE} if automatic referral following is enabled
* for this request, {@code Boolean.FALSE} if not, or {@code null} if
* a per-request behavior is not specified.
*/
final Boolean followReferralsInternal()
{
return followReferrals;
}
/**
* Specifies whether to automatically follow any referrals encountered while
* processing this request. This may be used to override the default behavior
* defined in the connection options for the connection used to process the
* request.
*
* @param followReferrals Indicates whether to automatically follow any
* referrals encountered while processing this
* request. It may be {@code null} to indicate that
* the determination should be based on the
* connection options for the connection used to
* process the request.
*/
public final void setFollowReferrals(final Boolean followReferrals)
{
this.followReferrals = followReferrals;
}
/**
* Retrieves the intermediate response listener for this request, if any.
*
* @return The intermediate response listener for this request, or
* {@code null} if there is none.
*/
public final IntermediateResponseListener getIntermediateResponseListener()
{
return intermediateResponseListener;
}
/**
* Sets the intermediate response listener for this request.
*
* @param listener The intermediate response listener for this request. It
* may be {@code null} to clear any existing listener.
*/
public final void setIntermediateResponseListener(
final IntermediateResponseListener listener)
{
intermediateResponseListener = listener;
}
/**
* Processes this operation using the provided connection and returns the
* result.
*
* @param connection The connection to use to process the request.
* @param depth The current referral depth for this request. It should
* always be one for the initial request, and should only
* be incremented when following referrals.
*
* @return The result of processing this operation.
*
* @throws LDAPException If a problem occurs while processing the request.
*/
@InternalUseOnly()
protected abstract LDAPResult process(final LDAPConnection connection,
final int depth)
throws LDAPException;
/**
* Retrieves the message ID for the last LDAP message sent using this request.
*
* @return The message ID for the last LDAP message sent using this request,
* or -1 if it no LDAP messages have yet been sent using this
* request.
*/
public abstract int getLastMessageID();
/**
* Retrieves the type of operation that is represented by this request.
*
* @return The type of operation that is represented by this request.
*/
public abstract OperationType getOperationType();
/**
* {@inheritDoc}
*/
@Override()
public String toString()
{
final StringBuilder buffer = new StringBuilder();
toString(buffer);
return buffer.toString();
}
/**
* {@inheritDoc}
*/
public abstract void toString(final StringBuilder buffer);
}