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Hosts.cpp
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Hosts.cpp
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////////////////////////////////////////////////////////////////////////////////
//! \file Hosts.cpp
//! \brief The Hosts class definition.
//! \author Chris Oldwood
#include "Common.hpp"
#include "Hosts.hpp"
#include <XML/XPathIterator.hpp>
#include <XML/TextNode.hpp>
#include <Core/ConfigurationException.hpp>
#include <set>
#include <Core/Algorithm.hpp>
#include <Core/StringUtils.hpp>
////////////////////////////////////////////////////////////////////////////////
//! Default constructor.
Hosts::Hosts()
: m_modified(false)
, m_hosts()
{
}
////////////////////////////////////////////////////////////////////////////////
//! Destructor.
Hosts::~Hosts()
{
}
////////////////////////////////////////////////////////////////////////////////
//! Get the number of hosts.
size_t Hosts::size() const
{
return m_hosts.size();
}
////////////////////////////////////////////////////////////////////////////////
//! Get the host at a given position.
const ConstHostPtr& Hosts::host(size_t index) const
{
ASSERT(index < m_hosts.size());
return m_hosts[index];
}
////////////////////////////////////////////////////////////////////////////////
//! Has the collection of names been modified?
bool Hosts::isModified() const
{
return m_modified;
}
////////////////////////////////////////////////////////////////////////////////
//! Get the collection start iterator.
Hosts::const_iterator Hosts::begin() const
{
return m_hosts.begin();
}
////////////////////////////////////////////////////////////////////////////////
//! Get the collection end iterator.
Hosts::const_iterator Hosts::end() const
{
return m_hosts.end();
}
////////////////////////////////////////////////////////////////////////////////
//! Load the set of hosts from the XML document.
void Hosts::load(const XML::DocumentPtr config)
{
ASSERT(config->hasRootElement());
Collection hosts;
std::set<tstring> names;
XML::XPathIterator it(TXT("/FarmMonitor/Hosts/Host"), config->getRootElement());
XML::XPathIterator end;
for(; it != end; ++it)
{
XML::ElementNodePtr node = Core::dynamic_ptr_cast<XML::ElementNode>(*it);
const tstring host = node->findFirstElement(TXT("Name"))->getTextValue();
if (host.empty())
throw Core::ConfigurationException(TXT("The name for a host cannot be empty"));
if (Core::exists(names, host))
throw Core::ConfigurationException(TXT("The name for a host cannot be duplicated"));
const tstring environment = node->findFirstElement(TXT("Environment"))->getTextValue();
const tstring description = node->findFirstElement(TXT("Description"))->getTextValue();
const bool monitor = Core::parse<bool>(node->findFirstElement(TXT("Monitor"))->getTextValue());
const tstring logon = node->findFirstElement(TXT("Logon"))->getTextValue();
hosts.push_back(makeHost(host, environment, description, monitor, logon));
names.insert(host);
}
std::swap(m_hosts, hosts);
m_modified = false;
}
////////////////////////////////////////////////////////////////////////////////
//! Save the set of hosts to the XML document.
void Hosts::save(XML::DocumentPtr config)
{
XML::XPathIterator it(TXT("/FarmMonitor/Hosts"), config->getRootElement());
XML::ElementNodePtr hosts(Core::dynamic_ptr_cast<XML::ElementNode>(*it));
for (size_t i = 0; i != m_hosts.size(); ++i)
{
XML::NodePtr properties[] =
{
XML::makeElement(TXT("Name"), XML::makeText(m_hosts[i]->m_name)),
XML::makeElement(TXT("Environment"), XML::makeText(m_hosts[i]->m_environment)),
XML::makeElement(TXT("Description"), XML::makeText(m_hosts[i]->m_description)),
XML::makeElement(TXT("Monitor"), XML::makeText(Core::format(m_hosts[i]->m_monitor))),
XML::makeElement(TXT("Logon"), XML::makeText(m_hosts[i]->m_logon)),
};
XML::ElementNodePtr host = XML::makeElement(TXT("Host"), properties, properties+ARRAY_SIZE(properties));
hosts->appendChild(host);
}
m_modified = false;
}
////////////////////////////////////////////////////////////////////////////////
//! Add a new host. This returns the position it was inserted.
size_t Hosts::add(ConstHostPtr host)
{
m_hosts.push_back(host);
m_modified = true;
return m_hosts.size()-1;
}
////////////////////////////////////////////////////////////////////////////////
//! Replace a host by position.
void Hosts::replace(size_t index, ConstHostPtr host)
{
ASSERT(index < m_hosts.size());
m_hosts[index] = host;
m_modified = true;
}
////////////////////////////////////////////////////////////////////////////////
//! Remove a host by position.
void Hosts::remove(size_t index)
{
ASSERT(index < m_hosts.size());
m_hosts.erase(m_hosts.begin() + index);
m_modified = true;
}
////////////////////////////////////////////////////////////////////////////////
//! Swap two hosts in the collection by index.
void Hosts::swap(size_t first, size_t second)
{
ASSERT(first < m_hosts.size());
ASSERT(second < m_hosts.size());
ConstHostPtr temp = m_hosts[first];
m_hosts[first] = m_hosts[second];
m_hosts[second] = temp;
m_modified = true;
}