/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2009-2010 Sun Microsystems, Inc.
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*/
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package com.sun.opends.sdk.ldap;
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import org.opends.sdk.*;
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import org.opends.sdk.requests.Requests;
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import org.opends.sdk.responses.IntermediateResponse;
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import org.opends.sdk.responses.Result;
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import com.sun.opends.sdk.util.AsynchronousFutureResult;
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/**
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* Abstract future result implementation.
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*
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* @param <S>
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* The type of result returned by this future.
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*/
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abstract class AbstractLDAPFutureResultImpl<S extends Result> extends
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AsynchronousFutureResult<S> implements IntermediateResponseHandler
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{
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private final AsynchronousConnection connection;
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private final int requestID;
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private IntermediateResponseHandler intermediateResponseHandler;
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private volatile long timestamp;
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AbstractLDAPFutureResultImpl(final int requestID,
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final ResultHandler<? super S> resultHandler,
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final IntermediateResponseHandler intermediateResponseHandler,
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final AsynchronousConnection connection)
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{
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super(resultHandler);
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this.requestID = requestID;
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this.connection = connection;
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this.intermediateResponseHandler = intermediateResponseHandler;
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this.timestamp = System.currentTimeMillis();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public final int getRequestID()
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{
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return requestID;
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}
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@Override
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public final boolean handleIntermediateResponse(
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final IntermediateResponse response)
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{
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// FIXME: there's a potential race condition here - the future could
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// get cancelled between the isDone() call and the handler
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// invocation. We'd need to add support for intermediate handlers in
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// the synchronizer.
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if (!isDone())
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{
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updateTimestamp();
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if (intermediateResponseHandler != null)
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{
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if (!intermediateResponseHandler.handleIntermediateResponse(response))
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{
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intermediateResponseHandler = null;
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}
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}
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}
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return true;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected final ErrorResultException handleCancelRequest(
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final boolean mayInterruptIfRunning)
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{
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connection.abandon(Requests.newAbandonRequest(requestID));
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return null;
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}
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@Override
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protected void toString(final StringBuilder sb)
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{
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sb.append(" requestID = ");
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sb.append(requestID);
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sb.append(" timestamp = ");
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sb.append(timestamp);
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super.toString(sb);
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}
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final void adaptErrorResult(final Result result)
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{
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final S errorResult = newErrorResult(result.getResultCode(),
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result.getDiagnosticMessage(), result.getCause());
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setResultOrError(errorResult);
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}
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final long getTimestamp()
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{
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return timestamp;
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}
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abstract S newErrorResult(ResultCode resultCode, String diagnosticMessage,
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Throwable cause);
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final void setResultOrError(final S result)
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{
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if (result.getResultCode().isExceptional())
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{
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handleErrorResult(ErrorResultException.wrap(result));
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}
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else
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{
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handleResult(result);
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}
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}
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final void updateTimestamp()
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{
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timestamp = System.currentTimeMillis();
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}
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}
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