Source/core/inspector/IdentifiersFactory.cpp

/*
 * Copyright (C) 2011 Google Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "core/inspector/IdentifiersFactory.h"

#include "wtf/text/StringBuilder.h"

namespace WebCore {

namespace {
static long s_lastUsedIdentifier = 0;
}

// static
long IdentifiersFactory::s_processId;

// static
String IdentifiersFactory::createIdentifier()
{
    return addProcessIdPrefixTo(String::number(++s_lastUsedIdentifier));
}

// static
String IdentifiersFactory::requestId(unsigned long identifier)
{
    if (identifier)
        return addProcessIdPrefixTo(String::number(identifier));
    return String();
}

// static
String IdentifiersFactory::addProcessIdPrefixTo(const String& id)
{
    StringBuilder builder;
    builder.appendNumber(s_processId);
    builder.append('.');
    builder.append(id);
    return builder.toString();
}

} // namespace WebCore