void
CompositeTileSource::initialize( const std::string& referenceURI, const Profile* overrideProfile )
{
osg::ref_ptr<const Profile> profile = overrideProfile;
for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
i != _options._components.end();
++i)
{
TileSource* source = i->_tileSourceInstance.get();
if ( source )
{
osg::ref_ptr<const Profile> localOverrideProfile = overrideProfile;
const TileSourceOptions& opt = source->getOptions();
if ( opt.profile().isSet() )
localOverrideProfile = Profile::create( opt.profile().value() );
source->initialize( referenceURI, localOverrideProfile.get() );
if ( !profile.valid() )
{
// assume the profile of the first source to be the overall profile.
profile = source->getProfile();
}
else if ( !profile->isEquivalentTo( source->getProfile() ) )
{
// if sub-sources have different profiles, print a warning because this is
// not supported!
OE_WARN << LC << "Components with differing profiles are not supported. "
<< "Visual anomalies may result." << std::endl;
}
_dynamic = _dynamic || source->isDynamic();
// gather extents
const DataExtentList& extents = source->getDataExtents();
for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
{
getDataExtents().push_back( *j );
}
}
}
setProfile( profile.get() );
_initialized = true;
}
CacheBin*
TerrainLayer::getCacheBin( const Profile* profile, const std::string& binId )
{
// make sure we've initialized the tile source first.
TileSource* tileSource = getTileSource();
// in no-cache mode, there are no cache bins.
if ( getCachePolicy() == CachePolicy::NO_CACHE )
{
return 0L;
}
// if cache is not setted, return NULL
if (_cache == NULL)
{
return 0L;
}
// see if the cache bin already exists and return it if so
{
Threading::ScopedReadLock shared(_cacheBinsMutex);
CacheBinInfoMap::iterator i = _cacheBins.find( binId );
if ( i != _cacheBins.end() )
return i->second._bin.get();
}
// create/open the cache bin.
{
Threading::ScopedWriteLock exclusive(_cacheBinsMutex);
// double-check:
CacheBinInfoMap::iterator i = _cacheBins.find( binId );
if ( i != _cacheBins.end() )
return i->second._bin.get();
// add the new bin:
osg::ref_ptr<CacheBin> newBin = _cache->addBin( binId );
// and configure:
if ( newBin.valid() )
{
// attempt to read the cache metadata:
CacheBinMetadata meta( newBin->readMetadata() );
if ( meta.isValid() ) // cache exists and is valid.
{
// verify that the cache if compatible with the tile source:
if ( tileSource && getProfile() )
{
//todo: check the profile too
if ( *meta._sourceDriver != tileSource->getOptions().getDriver() )
{
OE_WARN << LC << "Cache has an incompatible driver or profile... disabling"
<< std::endl;
setCachePolicy( CachePolicy::NO_CACHE );
return 0L;
}
}
else if ( isCacheOnly() && !_profile.valid() )
{
// in cacheonly mode, create a profile from the first cache bin accessed
// (they SHOULD all be the same...)
_profile = Profile::create( *meta._sourceProfile );
_tileSize = *meta._sourceTileSize;
}
}
else
{
// cache does not exist, so try to create it. A valid TileSource is necessary
// for this.
if ( tileSource && getProfile() )
{
// no existing metadata; create some.
meta._cacheBinId = binId;
meta._sourceName = this->getName();
meta._sourceDriver = tileSource->getOptions().getDriver();
meta._sourceTileSize = getTileSize();
meta._sourceProfile = getProfile()->toProfileOptions();
meta._cacheProfile = profile->toProfileOptions();
meta._cacheCreateTime = DateTime().asTimeStamp();
// store it in the cache bin.
newBin->writeMetadata( meta.getConfig() );
}
else if ( isCacheOnly() )
{
OE_WARN << LC <<
"Failed to open a cache for layer "
"because cache_only policy is in effect and bin [" << binId << "] "
"could not be located."
<< std::endl;
return 0L;
}
else
{
OE_WARN << LC <<
"Failed to create cache bin [" << binId << "] "
"because there is no valid tile source."
<< std::endl;
return 0L;
}
}
// store the bin.
CacheBinInfo& newInfo = _cacheBins[binId];
newInfo._metadata = meta;
newInfo._bin = newBin.get();
OE_INFO << LC <<
"Opened cache bin [" << binId << "]" << std::endl;
}
else
{
// bin creation failed, so disable caching for this layer.
setCachePolicy( CachePolicy::NO_CACHE );
OE_WARN << LC << "Failed to create a cache bin; cache disabled." << std::endl;
}
return newBin.get(); // not release()
}
}
TileSource::Status
CompositeTileSource::initialize(const osgDB::Options* dbOptions)
{
_dbOptions = Registry::instance()->cloneOrCreateOptions(dbOptions);
osg::ref_ptr<const Profile> profile = getProfile();
for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
i != _options._components.end(); )
{
if ( i->_imageLayerOptions.isSet() )
{
if ( !i->_tileSourceInstance.valid() )
{
i->_tileSourceInstance = TileSourceFactory::create( i->_imageLayerOptions->driver().value() );
if ( !i->_tileSourceInstance.valid() )
{
OE_WARN << LC << "Could not find a TileSource for driver [" << i->_imageLayerOptions->driver()->getDriver() << "]" << std::endl;
}
}
}
if ( !i->_tileSourceInstance.valid() )
{
OE_WARN << LC << "A component has no valid TileSource ... removing." << std::endl;
i = _options._components.erase( i );
}
else
{
TileSource* source = i->_tileSourceInstance.get();
if ( source )
{
osg::ref_ptr<const Profile> localOverrideProfile = profile.get();
const TileSourceOptions& opt = source->getOptions();
if ( opt.profile().isSet() )
{
localOverrideProfile = Profile::create( opt.profile().value() );
source->setProfile( localOverrideProfile.get() );
}
// initialize the component tile source:
TileSource::Status compStatus = source->startup( _dbOptions.get() );
if ( compStatus == TileSource::STATUS_OK )
{
if ( !profile.valid() )
{
// assume the profile of the first source to be the overall profile.
profile = source->getProfile();
}
else if ( !profile->isEquivalentTo( source->getProfile() ) )
{
// if sub-sources have different profiles, print a warning because this is
// not supported!
OE_WARN << LC << "Components with differing profiles are not supported. "
<< "Visual anomalies may result." << std::endl;
}
_dynamic = _dynamic || source->isDynamic();
// gather extents
const DataExtentList& extents = source->getDataExtents();
for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
{
getDataExtents().push_back( *j );
}
}
else
{
// if even one of the components fails to initialize, the entire
// composite tile source is invalid.
return Status::Error("At least one component is invalid");
}
}
}
++i;
}
// set the new profile that was derived from the components
setProfile( profile.get() );
_initialized = true;
return STATUS_OK;
}
void
CompositeTileSource::initialize(const osgDB::Options* dbOptions,
const Profile* overrideProfile )
{
_dbOptions = dbOptions;
osg::ref_ptr<const Profile> profile = overrideProfile;
for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
i != _options._components.end(); )
{
if ( i->_imageLayerOptions.isSet() )
{
if ( !i->_tileSourceInstance.valid() )
{
i->_tileSourceInstance = TileSourceFactory::create( i->_imageLayerOptions->driver().value() );
if ( !i->_tileSourceInstance.valid() )
{
OE_WARN << LC << "Could not find a TileSource for driver [" << i->_imageLayerOptions->driver()->getDriver() << "]" << std::endl;
}
}
}
if ( !i->_tileSourceInstance.valid() )
{
OE_WARN << LC << "A component has no valid TileSource ... removing." << std::endl;
i = _options._components.erase( i );
}
else
{
TileSource* source = i->_tileSourceInstance.get();
if ( source )
{
osg::ref_ptr<const Profile> localOverrideProfile = overrideProfile;
const TileSourceOptions& opt = source->getOptions();
if ( opt.profile().isSet() )
localOverrideProfile = Profile::create( opt.profile().value() );
source->initialize( dbOptions, localOverrideProfile.get() );
if ( !profile.valid() )
{
// assume the profile of the first source to be the overall profile.
profile = source->getProfile();
}
else if ( !profile->isEquivalentTo( source->getProfile() ) )
{
// if sub-sources have different profiles, print a warning because this is
// not supported!
OE_WARN << LC << "Components with differing profiles are not supported. "
<< "Visual anomalies may result." << std::endl;
}
_dynamic = _dynamic || source->isDynamic();
// gather extents
const DataExtentList& extents = source->getDataExtents();
for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
{
getDataExtents().push_back( *j );
}
}
}
++i;
}
setProfile( profile.get() );
_initialized = true;
}