initial LdifWriter code

contrib/ldapc++/src/LdifWriter.cpp

+// $OpenLDAP$
+/*
+ * Copyright 2008, OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
+#include "LdifWriter.h"
+#include "StringList.h"
+#include "LDAPAttribute.h"
+#include "debug.h"
+#include <sstream>
+#include <stdexcept>
+
+LdifWriter::LdifWriter( std::ostream& output, int version ) :
+        m_ldifstream(output), m_version(version), m_addSeparator(false)
+{
+    if ( version )
+    {
+        if ( version == 1 )
+        {
+            m_ldifstream << "version: " << version << std::endl;
+            m_addSeparator = true;
+        } else {
+            std::ostringstream err;
+            err << "Unsuported LDIF Version";
+            throw( std::runtime_error(err.str()) );
+        }
+    }
+    
+}
+
+void LdifWriter::writeRecord(const LDAPEntry& le)
+{
+    std::ostringstream line;
+
+    if ( m_addSeparator )
+    {
+        m_ldifstream << std::endl;
+    } else {
+        m_addSeparator = true;
+    }
+
+    line << "dn: " << le.getDN();
+    this->breakline( line.str(), m_ldifstream );
+
+    const LDAPAttributeList *al = le.getAttributes();
+    LDAPAttributeList::const_iterator i = al->begin();
+    for ( ; i != al->end(); i++ )
+    {
+        StringList values = i->getValues();
+        StringList::const_iterator j = values.begin();
+        for( ; j != values.end(); j++)
+        {
+            // clear output stream
+            line.str("");
+            line << i->getName() << ": " << *j;
+            this->breakline( line.str(), m_ldifstream );
+        }
+    }
+}
+
+void LdifWriter::writeIncludeRecord( const std::string& target )
+{
+    DEBUG(LDAP_DEBUG_TRACE, "writeIncludeRecord: " << target << std::endl);
+    std::string scheme = target.substr( 0, sizeof("file:")-1 );
+    
+    if ( m_version == 1 )
+    {
+        std::ostringstream err;
+        err << "\"include\" not allowed in LDIF version 1.";
+        throw( std::runtime_error(err.str()) );
+    }
+    
+    if ( m_addSeparator )
+    {
+        m_ldifstream << std::endl;
+    } else {
+        m_addSeparator = true;
+    }
+
+    m_ldifstream << "include: ";
+    if ( scheme != "file:" )
+    {
+        m_ldifstream << "file://";
+    }
+
+    m_ldifstream << target << std::endl;
+}
+
+void LdifWriter::breakline( const std::string &line, std::ostream &out )
+{
+    std::string::size_type pos = 0;
+    std::string::size_type linelength = 76;
+    bool first = true;
+    
+    if ( line.length() >= linelength )
+    {
+        while ( pos < line.length() )
+        {
+            if (! first )
+            {
+                out << " ";
+            }
+            out << line.substr(pos, linelength) << std::endl;
+            pos += linelength;
+            if ( first )
+            {
+                first = false;
+                linelength--; //account for the leading space
+            }
+        }
+    } else {
+        out << line << std::endl;
+    }
+}
+

contrib/ldapc++/src/LdifWriter.h

+// $OpenLDAP$
+/*
+ * Copyright 2008, OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
+#ifndef LDIF_WRITER_H
+#define LDIF_WRITER_H
+
+#include <LDAPEntry.h>
+#include <iosfwd>
+#include <list>
+
+class LdifWriter
+{
+    public:
+        LdifWriter( std::ostream& output, int version = 0 );
+        void writeRecord(const LDAPEntry& le);
+        void writeIncludeRecord(const std::string& target);
+
+    private:
+        void breakline( const std::string &line, std::ostream &out );
+
+        std::ostream& m_ldifstream;
+        int m_version;
+        bool m_addSeparator;
+
+};
+
+#endif /* LDIF_WRITER_H */
+