Add capabilities cache classes and use QHash for config cache

mhugent · mhugent · commit 09c6d6f93c1d · 2011-05-11T17:10:22.000+02:00
diff --git a/src/mapserver/qgscapabilitiescache.cpp b/src/mapserver/qgscapabilitiescache.cpp
@@ -0,0 +1,44 @@
+/***************************************************************************
+                              qgscapabilitiescache.h
+                              ----------------------
+  begin                : May 11th, 2011
+  copyright            : (C) 2011 by Marco Hugentobler
+  email                : marco dot hugentobler at sourcepole dot ch
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgscapabilitiescache.h"
+
+QgsCapabilitiesCache::QgsCapabilitiesCache()
+{
+}
+
+QgsCapabilitiesCache::~QgsCapabilitiesCache()
+{
+}
+
+const QDomDocument* QgsCapabilitiesCache::searchCapabilitiesDocument( const QString& configFilePath ) const
+{
+  QHash< QString, QDomDocument >::const_iterator it = mCachedCapabilities.find( configFilePath );
+  if( it == mCachedCapabilities.constEnd() )
+  {
+    return 0;
+  }
+  else
+  {
+    return &(it.value());
+  }
+}
+
+void QgsCapabilitiesCache::insertCapabilitiesDocument( const QString& configFilePath, const QDomDocument* doc )
+{
+  mCachedCapabilities.insert( configFilePath, doc->cloneNode().toDocument() );
+}
diff --git a/src/mapserver/qgscapabilitiescache.h b/src/mapserver/qgscapabilitiescache.h
@@ -0,0 +1,40 @@
+/***************************************************************************
+                              qgscapabilitiescache.h
+                              ----------------------
+  begin                : May 11th, 2011
+  copyright            : (C) 2011 by Marco Hugentobler
+  email                : marco dot hugentobler at sourcepole dot ch
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef QGSCAPABILITIESCACHE_H
+#define QGSCAPABILITIESCACHE_H
+
+#include <QDomDocument>
+#include <QHash>
+
+/**A cache for capabilities xml documents (by configuration file path)*/
+class QgsCapabilitiesCache
+{
+  public:
+    QgsCapabilitiesCache();
+    ~QgsCapabilitiesCache();
+
+    /**Returns cached capabilities document (or 0 if document for configuration file not in cache)*/
+    const QDomDocument* searchCapabilitiesDocument( const QString& configFilePath ) const;
+    /**Inserts new capabilities document (creates a copy of the document, does not take ownership)*/
+    void insertCapabilitiesDocument( const QString& configFilePath, const QDomDocument* doc );
+
+  private:
+    QHash< QString, QDomDocument > mCachedCapabilities;
+};
+
+#endif // QGSCAPABILITIESCACHE_H
