forked from hpcc-systems/HPCC-Platform
/
hqlcollect.cpp
1286 lines (1088 loc) · 38.4 KB
/
hqlcollect.cpp
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/*##############################################################################
Copyright (C) 2011 HPCC Systems.
All rights reserved. This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
############################################################################## */
#include "hql.hpp"
#include "hqlcollect.hpp"
#include "eclrtl.hpp"
#include "jfile.hpp"
#include "jiter.ipp"
#include "hqlplugins.hpp"
#include "hqlexpr.hpp"
#include "hqlerrors.hpp"
inline bool isNullOrBlank(const char * s) { return !s || !*s; }
//DLLs should call CPluginCtx to manage memory
class CPluginCtx : implements IPluginContext
{
public:
void * ctxMalloc(size_t size) { return rtlMalloc(size); }
void * ctxRealloc(void * _ptr, size_t size) { return rtlRealloc(_ptr, size); }
void ctxFree(void * _ptr) { rtlFree(_ptr); }
char * ctxStrdup(char * _ptr) { return strdup(_ptr); }
};
static CPluginCtx PluginCtx;
class CEclSourceCollection : public CInterface, implements IEclSourceCollection
{
public:
IMPLEMENT_IINTERFACE
};
//-------------------------------------------------------------------------------------------------------------------
//MORE: Split this into a common base and a Source?
class CEclSource : public CInterface, implements IEclSource
{
public:
CEclSource(_ATOM _eclName, EclSourceType _type) : eclName(_eclName), type(_type) { }
IMPLEMENT_IINTERFACE
//interface IEclSource
virtual IProperties * getProperties() { return NULL; }
virtual _ATOM queryEclName() const { return eclName; }
virtual EclSourceType queryType() const { return type; }
// new virtuals implemented by the child classes
virtual IEclSource * getSource(_ATOM searchName) = 0;
virtual IEclSourceIterator * getContained() = 0;
protected:
_ATOM eclName;
EclSourceType type;
};
class CEclCollection : public CEclSource
{
public:
CEclCollection(_ATOM _eclName, EclSourceType _type) : CEclSource(_eclName, _type) { expandedChildren = false; fullyDefined = false; }
//interface IEclSource
virtual IFileContents * queryFileContents() { return NULL; }
//CEclSource virtuals
virtual IEclSource * getSource(_ATOM searchName);
virtual IEclSourceIterator * getContained();
virtual void populateChildren() {}
virtual void populateDefinition() {}
protected:
void ensureChildren();
void ensureDefinition();
CEclSource * find(_ATOM searchName);
protected:
IArrayOf<IEclSource> contents;
CriticalSection cs;
bool expandedChildren;
bool fullyDefined;
};
IEclSource * CEclCollection::getSource(_ATOM searchName)
{
ensureChildren();
return find(searchName);
}
IEclSourceIterator * CEclCollection::getContained()
{
ensureChildren();
return new CArrayIteratorOf<IEclSource, IEclSourceIterator>(contents, 0, NULL);
}
CEclSource * CEclCollection::find(_ATOM name)
{
ForEachItemIn(i, contents)
{
IEclSource & cur = contents.item(i);
if (cur.queryEclName() == name)
return &static_cast<CEclSource &>(cur);
}
return NULL;
}
void CEclCollection::ensureChildren()
{
CriticalBlock block(cs);
if (expandedChildren)
return;
expandedChildren = true;
populateChildren();
}
void CEclCollection::ensureDefinition()
{
CriticalBlock block(cs);
if (fullyDefined)
return;
fullyDefined = true;
populateDefinition();
}
//-------------------------------------------------------------------------------------------------------------------
class FileSystemFile : public CEclSource
{
public:
FileSystemFile(EclSourceType _type, IFile & _file);
//interface IEclSource
virtual IProperties * getProperties();
virtual IFileContents * queryFileContents() { return fileContents; }
//CEclSource virtuals
virtual IEclSource * getSource(_ATOM searchName) { return NULL; }
virtual IEclSourceIterator * getContained() { return NULL; }
bool checkValid();
public:
Linked<IFile> file;
Linked<IFileContents> fileContents;
StringAttr version;
SharedObject pluginSO;
unsigned extraFlags;
};
class FileSystemDirectory : public CEclCollection
{
public:
FileSystemDirectory(_ATOM _eclName, IFile * _directory)
: CEclCollection(_eclName, ESTcontainer), directory(_directory)
{
}
void expandDirectoryTree(IDirectoryIterator * dir, bool allowPlugins);
void addFile(IFile &file, bool allowPlugins);
protected:
virtual void populateChildren();
public:
Linked<IFile> directory;
};
//MORE: Create a base class for some of this code.
class FileSystemEclCollection : public CEclSourceCollection
{
public:
FileSystemEclCollection(unsigned _trace)
: root(NULL, NULL), trace(_trace)
{
}
//interface IEclSourceCollection
virtual IEclSource * getSource(IEclSource * optParent, _ATOM searchName);
virtual IEclSourceIterator * getContained(IEclSource * optParent);
virtual void checkCacheValid();
void processFilePath(IErrorReceiver * errs, const char * sourceSearchPath, bool allowPlugins);
public:
FileSystemDirectory root;
unsigned trace;
};
//-------------------------------------------------------------------------------------------------------------------
EclSourceType getEclSourceType(const char * tailname)
{
const char *ext = strrchr(tailname, '.');
if (!ext)
return ESTnone;
if (stricmp(ext, ".eclmod")==0 || stricmp(ext, ".hql")==0)
return ESTmodule;
if (stricmp(ext, ".ecllib")==0 || stricmp(ext, ".hqllib")==0)
return ESTlibrary;
if (stricmp(ext, ".ecl")==0 || stricmp(ext, ".eclattr")==0)
return ESTdefinition;
if (stricmp(ext, SharedObjectExtension)==0)
return ESTplugin;
return ESTnone;
}
static _ATOM deriveEclName(const char * filename)
{
if (!filename)
return NULL;
const char * tailname = pathTail(filename);
const char *ext = strrchr(tailname, '.');
_ATOM name;
if (ext)
name = createAtom(tailname, ext-tailname);
else
name = createAtom(tailname);
if (!isCIdentifier(name->str()))
return NULL;
return name;
}
//---------------------------------------------------------------------------------------
FileSystemFile::FileSystemFile(EclSourceType _type, IFile & _file)
: CEclSource(deriveEclName(_file.queryFilename()), _type), file(&_file)
{
Owned<ISourcePath> path = createSourcePath(file->queryFilename());
fileContents.setown(createFileContents(file, path));
extraFlags = 0;
switch (type)
{
case ESTplugin:
extraFlags = PLUGIN_DLL_MODULE|PLUGIN_IMPLICIT_MODULE;
break;
case ESTlibrary:
extraFlags = PLUGIN_IMPLICIT_MODULE;
break;
}
}
bool FileSystemFile::checkValid()
{
if (!eclName)
return false;
if (type == ESTplugin)
{
const char * filename = file->queryFilename();
try
{
if (pluginSO.load(filename, false, false)) // don't clash getECLPluginDefinition symbol
{
HINSTANCE h = pluginSO.getInstanceHandle();
EclPluginSetCtx pSetCtx = (EclPluginSetCtx) GetSharedProcedure(h,"setPluginContext");
if (pSetCtx)
pSetCtx(&PluginCtx);
EclPluginDefinition p= (EclPluginDefinition) GetSharedProcedure(h,"getECLPluginDefinition");
if (p)
{
ECLPluginDefinitionBlock pb;
pb.size = sizeof(pb);
if (p(&pb) && (pb.magicVersion == PLUGIN_VERSION))
{
//Name in the plugin overrides the name of the plugin, and the filename where errors are reported.
eclName = createAtom(pb.moduleName);
version.set(pb.version);
Owned<ISourcePath> pluginPath = createSourcePath(pb.moduleName);
fileContents.setown(createFileContentsFromText(pb.ECL, pluginPath));
//if (traceMask & PLUGIN_DLL_MODULE)
DBGLOG("Loading plugin %s[%s] version = %s", filename, pb.moduleName, version.get());
//Note: Don't unload the plugin dll.
//Otherwise if the plugin is used in a constant folding context it will keep being loaded and unloaded.
}
else
{
DBGLOG("Plugin %s exports getECLPluginDefinition but fails consistency check - not loading", filename);
return false;
}
}
else
{
WARNLOG("getECLPluginDefinition not found in %s, unloading", filename);
return false;
}
}
}
catch (IException * e)
{
EXCLOG(e, "Trying to load dll");
::Release(e);
return false;
}
catch (...)
{
return false;
}
}
return true;
}
IProperties * FileSystemFile::getProperties()
{
Owned<IProperties> properties;
//MORE: This should set individual properties rather than the "flags", or use flags defined in hqlexpr.hpp
switch (type)
{
case ESTplugin:
{
properties.setown(createProperties());
properties->setProp(flagsAtom->str(), extraFlags);
properties->setProp(versionAtom->str(), version.get());
properties->setProp(pluginAtom->str(), file->queryFilename());
break;
}
case ESTmodule:
case ESTlibrary:
{
if (extraFlags)
{
properties.setown(createProperties());
properties->setProp(flagsAtom->str(), extraFlags);
}
break;
}
}
return properties.getClear();
}
//---------------------------------------------------------------------------------------
#define SOURCEFILE_PLUGIN 0x20000000
void FileSystemDirectory::addFile(IFile &file, bool allowPlugins)
{
const char * filename = file.queryFilename();
const char * tail = pathTail(filename);
if (tail && tail[0]!='.')
{
Owned<CEclSource> newSource;
if (file.isFile() == foundYes)
{
EclSourceType type = getEclSourceType(tail);
if (type && ((type != ESTplugin) || allowPlugins))
{
Owned<FileSystemFile> newFile = new FileSystemFile(type, file);
if (allowPlugins)
newFile->extraFlags |= SOURCEFILE_PLUGIN;
if (newFile->checkValid())
newSource.setown(newFile.getClear());
}
}
else if (file.isDirectory() == foundYes)
{
newSource.setown(new FileSystemDirectory(deriveEclName(tail), &file));
}
if (newSource && newSource->queryEclName())
{
if (!find(newSource->queryEclName()))
contents.append(*newSource.getClear());
else
{
WARNLOG("Duplicate module found at %s", filename);
}
}
}
expandedChildren = true;
}
void FileSystemDirectory::expandDirectoryTree(IDirectoryIterator * dir, bool allowPlugins)
{
ForEach (*dir)
{
IFile &file = dir->query();
addFile(file, allowPlugins);
}
expandedChildren = true;
}
void FileSystemDirectory::populateChildren()
{
if (directory)
{
Owned<IDirectoryIterator> childIter = directory->directoryFiles(NULL, false, true);
expandDirectoryTree(childIter, false);
}
}
//---------------------------------------------------------------------------------------
IEclSource * FileSystemEclCollection::getSource(IEclSource * optParent, _ATOM searchName)
{
if (!optParent)
return root.getSource(searchName);
CEclSource * parent = static_cast<CEclSource *>(optParent);
return parent->getSource(searchName);
}
IEclSourceIterator * FileSystemEclCollection::getContained(IEclSource * optParent)
{
if (!optParent)
return root.getContained();
CEclSource * parent = static_cast<CEclSource *>(optParent);
return parent->getContained();
}
void FileSystemEclCollection::processFilePath(IErrorReceiver * errs, const char * sourceSearchPath, bool allowPlugins)
{
if (!sourceSearchPath)
return;
const char * cursor = sourceSearchPath;
for (;*cursor;)
{
StringBuffer searchPattern;
while (*cursor && *cursor != ENVSEPCHAR)
searchPattern.append(*cursor++);
if(*cursor)
cursor++;
if(!searchPattern.length())
continue;
StringBuffer dirPath, dirTail, absolutePath;
splitFilename(searchPattern.str(), &dirPath, &dirPath, &dirTail, &dirTail);
makeAbsolutePath(dirPath.str(), absolutePath);
if (!containsFileWildcard(dirTail))
{
addPathSepChar(absolutePath).append(dirTail);
Owned<IFile> file = createIFile(absolutePath);
if (file->isDirectory() == foundYes)
{
Owned<IDirectoryIterator> dir = file->directoryFiles(NULL, false, true);
root.expandDirectoryTree(dir, allowPlugins);
}
else if (file->isFile() == foundYes)
{
root.addFile(*file, allowPlugins);
}
else
{
if (errs)
{
StringBuffer msg;
msg.appendf("Explicit source file %s not found", searchPattern.str());
errs->reportWarning(10, msg.str(), NULL, 0, 0, 0);
}
else
printf("Explicit source file %s not found\n", searchPattern.str());
}
}
else
{
Owned<IDirectoryIterator> dir = createDirectoryIterator(absolutePath, dirTail);
root.expandDirectoryTree(dir, allowPlugins);
}
}
}
void FileSystemEclCollection::checkCacheValid()
{
}
extern HQL_API IEclSourceCollection * createFileSystemEclCollection(IErrorReceiver *errs, const char * path, unsigned flags, unsigned trace)
{
Owned<FileSystemEclCollection> collection = new FileSystemEclCollection(trace);
collection->processFilePath(errs, path, (flags & ESFallowplugins) != 0);
return collection.getClear();
}
//-------------------------------------------------------------------------------------------------------------------
static const char * queryText(IPropertyTree * tree)
{
if (!tree)
return NULL;
//A mess because of legacy formats.
const char* text = tree->queryProp("Text");
if (!text)
{
text = tree->queryProp("text");
if (!text)
text = tree->queryProp("");
}
return text;
}
class CXmlEclElement : public CEclCollection
{
public:
CXmlEclElement(_ATOM _name, EclSourceType _type, IPropertyTree * _elemTree, CXmlEclElement * _container);
//interface IEclSource
virtual IProperties * getProperties();
virtual IFileContents * queryFileContents();
virtual CXmlEclElement * createElement(_ATOM _name, EclSourceType _type, IPropertyTree * _elemTree)
{
return new CXmlEclElement(_name, _type, _elemTree, this);
}
virtual void populateChildren();
virtual void setTree(IPropertyTree * _elemTree) { elemTree.set(_elemTree); }
CXmlEclElement * find(_ATOM searchName) { return static_cast<CXmlEclElement *>(CEclCollection::find(searchName)); }
CXmlEclElement * select(_ATOM eclName, EclSourceType _type, IPropertyTree * _tree);
void setFlags(unsigned _flags) { extraFlags = _flags; }
protected:
void expandAttribute(const char * modname, IPropertyTree * tree);
void expandChildren(IPropertyTree * xml);
void expandModule(const char * modname, IPropertyTree * tree);
void getFullName(StringBuffer & target);
public:
Linked<IPropertyTree> elemTree;
Linked<IFileContents> fileContents;
CXmlEclElement * container;
unsigned extraFlags;
};
CXmlEclElement::CXmlEclElement(_ATOM _name, EclSourceType _type, IPropertyTree * _elemTree, CXmlEclElement * _container)
: CEclCollection(_name, _type), elemTree(_elemTree), container(_container)
{
extraFlags = 0;
switch (type)
{
case ESTplugin:
extraFlags = PLUGIN_DLL_MODULE|PLUGIN_IMPLICIT_MODULE;
break;
case ESTlibrary:
extraFlags = PLUGIN_IMPLICIT_MODULE;
break;
}
}
void CXmlEclElement::populateChildren()
{
if (elemTree)
expandChildren(elemTree);
}
void CXmlEclElement::expandChildren(IPropertyTree * xml)
{
const char * name = xml->queryProp("@name");
Owned<IPropertyTreeIterator> modit = xml->getElements("Module");
ForEach(*modit)
{
IPropertyTree & cur = modit->query();
const char* modname = cur.queryProp("@name");
expandModule(modname, &cur);
}
Owned<IPropertyTreeIterator> attrit = xml->getElements("Attribute");
ForEach(*attrit)
{
IPropertyTree & cur = attrit->query();
const char* modname = cur.queryProp("@name");
expandAttribute(modname, &cur);
}
}
void CXmlEclElement::expandModule(const char * modname, IPropertyTree * tree)
{
if (modname && *modname)
{
const char * dot = strchr(modname, '.');
if (dot)
{
_ATOM name = createAtom(modname, dot-modname);
select(name, ESTcontainer, NULL)->expandModule(dot+1, tree);
return;
}
_ATOM thisName = createAtom(modname);
EclSourceType thisType = ESTcontainer;
const char * text = queryText(tree);
//This is all primarily here for backward compatibility with existing archives (especially in regression suite)
int iflags = tree->getPropInt("@flags", 0);
//backward compatibility of old archive files
if (stricmp(modname, "default")==0)
iflags &= ~(PLUGIN_IMPLICIT_MODULE);
if (text)
{
if (iflags & PLUGIN_DLL_MODULE)
thisType = ESTplugin;
else if (iflags & PLUGIN_IMPLICIT_MODULE)
thisType = ESTlibrary;
else
thisType = ESTmodule;
iflags = 0;
}
CXmlEclElement * match = select(thisName, thisType, tree);
if (iflags)
match->setFlags(iflags);
}
else
expandChildren(tree);
}
void CXmlEclElement::expandAttribute(const char * modname, IPropertyTree * tree)
{
_ATOM thisName = createAtom(modname);
CXmlEclElement * match = select(thisName, ESTdefinition, tree);
unsigned iflags = tree->getPropInt("@flags", 0);
if (iflags)
match->setFlags(iflags);
}
void CXmlEclElement::getFullName(StringBuffer & target)
{
if (container)
{
unsigned prev = target.length();
container->getFullName(target);
if (target.length() != prev)
target.append('.');
}
target.append(eclName);
}
IFileContents * CXmlEclElement::queryFileContents()
{
ensureDefinition();
if (!fileContents)
{
const char* text = queryText(elemTree);
if (text && *text)
{
const char * path = elemTree->queryProp("@sourcePath");
Owned<ISourcePath> sourcePath;
if (path)
{
sourcePath.setown(createSourcePath(path));
}
else
{
StringBuffer defaultName;
getFullName(defaultName);
sourcePath.setown(createSourcePath(defaultName));
}
fileContents.setown(createFileContentsFromText(text, sourcePath));
}
}
return fileContents;
}
IProperties * CXmlEclElement::getProperties()
{
ensureDefinition();
Owned<IProperties> properties;
//MORE: This should set individual properties rather than the "flags", or use flags defined in hqlexpr.hpp
switch (type)
{
case ESTplugin:
{
properties.setown(createProperties());
properties->setProp(flagsAtom->str(), extraFlags);
properties->setProp(versionAtom->str(), elemTree->queryProp("@version"));
properties->setProp(pluginAtom->str(), elemTree->queryProp("@fullname"));
break;
}
default:
{
if (extraFlags)
{
properties.setown(createProperties());
properties->setProp(flagsAtom->str(), extraFlags);
}
break;
}
}
return properties.getClear();
}
CXmlEclElement * CXmlEclElement::select(_ATOM _name, EclSourceType _type, IPropertyTree * _tree)
{
//Critial section??
CXmlEclElement * match = find(_name);
if (!match)
{
match = createElement(_name, _type, _tree);
contents.append(*match);
}
else if (!match->elemTree)
{
assertex(match->queryType() == _type);
match->setTree(_tree);
}
else if (_tree)
{
//Some old archives seeem to contain duplicate definitions. Clean then up then delete this code
DBGLOG("Source Seems to have duplicate definition of %s", _name->str());
//throwUnexpected();
}
return match;
}
//-------------------------------------------------------------------------------------------------------------------
class PropertyTreeEclCollection : public CEclSourceCollection
{
public:
PropertyTreeEclCollection(IPropertyTree * _archive)
: archive(_archive)
{
}
//interface IEclSourceCollection
virtual IEclSource * getSource(IEclSource * optParent, _ATOM searchName);
virtual IEclSourceIterator * getContained(IEclSource * optParent);
public:
Linked<IPropertyTree> archive;
Linked<CXmlEclElement> root;
};
//---------------------------------------------------------------------------------------
IEclSource * PropertyTreeEclCollection::getSource(IEclSource * optParent, _ATOM searchName)
{
if (!optParent)
return root->getSource(searchName);
CEclSource * parent = static_cast<CEclSource *>(optParent);
return parent->getSource(searchName);
}
IEclSourceIterator * PropertyTreeEclCollection::getContained(IEclSource * optParent)
{
if (!optParent)
return root->getContained();
CEclSource * parent = static_cast<CEclSource *>(optParent);
return parent->getContained();
}
//---------------------------------------------------------------------------------------
class ArchiveEclCollection : public PropertyTreeEclCollection
{
public:
ArchiveEclCollection(IPropertyTree * _archive)
: PropertyTreeEclCollection(_archive)
{
root.setown(new CXmlEclElement(NULL, ESTcontainer, archive, NULL));
}
virtual void checkCacheValid() {}
};
extern HQL_API IEclSourceCollection * createArchiveEclCollection(IPropertyTree * tree)
{
Owned<ArchiveEclCollection> collection = new ArchiveEclCollection(tree);
return collection.getClear();
}
//---------------------------------------------------------------------------------------
IEclSourceCollection * createSingleDefinitionEclCollection(const char * moduleName, const char * attrName, IFileContents * contents)
{
//Create an archive with a single module/
Owned<IPropertyTree> archive = createPTree("Archive");
IPropertyTree * module = archive->addPropTree("Module", createPTree("Module"));
module->setProp("@name", moduleName);
IPropertyTree * attr = module->addPropTree("Attribute", createPTree("Attribute"));
attr->setProp("@name", attrName);
const char * filename = contents->querySourcePath()->str();
if (filename)
attr->setProp("@sourcePath", filename);
StringBuffer temp;
temp.append(contents->length(), contents->getText());
attr->setProp("", temp.str());
return createArchiveEclCollection(archive);
}
IEclSourceCollection * createSingleDefinitionEclCollection(const char * attrName, IFileContents * contents)
{
const char * dot = strrchr(attrName, '.');
if (dot)
{
StringAttr module(attrName, dot-attrName);
return createSingleDefinitionEclCollection(module, dot+1, contents);
}
return createSingleDefinitionEclCollection("", attrName, contents);
}
//---------------------------------------------------------------------------------------
static void setKeyAttribute(IPropertyTree * elem)
{
StringBuffer nameKey;
const char* name = elem->queryProp("@name");
if (name)
{
nameKey.append(name).toLowerCase();
elem->setProp("@key", nameKey);
}
}
class RemoteXmlEclCollection;
class CRemoteXmlEclElement : public CXmlEclElement
{
public:
CRemoteXmlEclElement(_ATOM _name, EclSourceType _type, IPropertyTree * _elemTree, CXmlEclElement * _container, RemoteXmlEclCollection * _collection)
: CXmlEclElement(_name, _type, _elemTree, _container), collection(_collection)
{
updateKey();
if (queryText(elemTree))
fullyDefined = true;
}
//interface IEclSource
virtual CXmlEclElement * createElement(_ATOM _name, EclSourceType _type, IPropertyTree * _elemTree)
{
return new CRemoteXmlEclElement(_name, _type, _elemTree, this, collection);
}
virtual void setTree(IPropertyTree * _elemTree)
{
CXmlEclElement::setTree(_elemTree);
updateKey();
}
virtual void populateChildren();
virtual void populateDefinition();
inline const char * queryName() { return elemTree ? elemTree->queryProp("@name") : NULL; }
protected:
inline void updateKey()
{
if (elemTree && !elemTree->queryProp("@key"))
setKeyAttribute(elemTree);
}
protected:
RemoteXmlEclCollection * collection;
};
//---------------------------------------------------------------------------------------
class RemoteXmlEclCollection : public PropertyTreeEclCollection
{
public:
RemoteXmlEclCollection(IEclUser * _user, IXmlEclRepository &_repository, const char * _snapshot, bool _useSandbox)
: PropertyTreeEclCollection(NULL), repository(&_repository), user(_user)
{
root.setown(new CRemoteXmlEclElement(NULL, ESTcontainer, archive, NULL, this));
if (_snapshot && *_snapshot)
snapshot.set(_snapshot);
useSandbox = _useSandbox;
cachestamp = 0;
archive.setown(createPTree("Archive"));
preloadText = true;
}
//interface IEclSourceCollection
virtual void checkCacheValid();
IPropertyTree * fetchAttribute(const char * moduleName, const char * attrName);
IPropertyTree * fetchModule(const char * moduleName);
protected:
void logException(IException *e);
IPropertyTree * lookupModule(const char * moduleName);
IPropertyTree * updateAttribute(IPropertyTree * module, IPropertyTree * attribute);
IPropertyTree * updateModule(IPropertyTree & module);
private:
IPropertyTree * getAttributes(const char *module, const char *attr, int version, unsigned char infoLevel);
IPropertyTree * getModules(timestamp_t from);
static IPropertyTree * lookup(IPropertyTree * parent, const char * name);
static IPropertyTree * update(IPropertyTree * parent, IPropertyTree * child, bool needToDelete);
public:
Linked<IXmlEclRepository> repository;
Linked<IEclUser> user;
StringAttr snapshot;
StringBuffer lastError;
timestamp_t cachestamp;
bool useSandbox;
bool preloadText;
};
//==============================================================================================================
void CRemoteXmlEclElement::populateChildren()
{
if ((type == ESTcontainer) && elemTree)
{
if (container)
{
IPropertyTree * resolved = collection->fetchModule(queryName());
if (resolved)
setTree(resolved);
}
else
{
IPropertyTree * resolved = collection->fetchModule("");
if (resolved)
{
//MORE: This updates the archive entry.
//I think that means modification to remote non module attributes may not get updated
//Not a show stopping issue, since not currently supported.
//But needs a clean solution.
//e.g., clone, merge, replace.
mergePTree(elemTree, resolved);
}
}
}
CXmlEclElement::populateChildren();
}
void CRemoteXmlEclElement::populateDefinition()
{
if ((type == ESTdefinition) && elemTree)
{
CRemoteXmlEclElement * module = static_cast<CRemoteXmlEclElement *>(container);
const char * moduleName = module->queryName();
IPropertyTree * resolved = collection->fetchAttribute(moduleName, queryName());
if (resolved)
setTree(resolved);
}
CXmlEclElement::populateDefinition();
}
//==============================================================================================================
void RemoteXmlEclCollection::logException(IException *e)
{
if (e)
{
e->errorMessage(lastError.clear());
}
else
{
lastError.clear().append("Unknown exception");
}
DBGLOG("Log Exception: %s", lastError.str());
}
void RemoteXmlEclCollection::checkCacheValid()
{
//Check cache valid ensures that all the module instances are created.
DBGLOG("check cache");
Owned<IPropertyTree> repository = getModules(cachestamp);
if(!repository)
{
DBGLOG("getModules returned null");