uniconf/uniwvconfgen.cc

   1 /*
   2  * Worldvisions Weaver Software:
   3  *   Copyright (C) 2002 Net Integration Technologies, Inc.
   4  *
   5  * A generator to make a UniConf object out of a WvConf.
   6  */
   7 #include "wvconf.h"
   8 #include "uniwvconfgen.h"
   9 #include "wvmoniker.h"
  10
  11 /**
  12  * A wrapper class for the wvconf iters to provide a UniConfGen iter.
  13  */
  14 class UniWvConfGen::WvConfIter : public UniConfGen::Iter
  15 {
  16 protected:
  17     WvConfigSection::Iter i;
  18
  19 public:
  20     WvConfIter(WvConfigSection *sect);
  21
  22     /***** Overridden members *****/
  23
  24     virtual void rewind();
  25     virtual bool next();
  26     virtual UniConfKey key() const;
  27     virtual WvString value() const;
  28 };
  29
  30
  31 static IUniConfGen *creator(WvStringParm s, IObject*)
  32 {
  33     return new UniWvConfGen(new WvConf(s));
  34 }
  35
  36 static WvMoniker<IUniConfGen> reg("wvconf", creator);
  37
  38
  39 void UniWvConfGen::notify(void *userdata, WvStringParm section,
  40                           WvStringParm entry, WvStringParm oldval,
  41                           WvStringParm newval)
  42 {
  43     UniConfKey key(section, entry);
  44
  45     tempvalue = newval;
  46     tempkey = &key;
  47     delta(key, newval);
  48     tempkey = NULL;
  49 }
  50
  51
  52 UniWvConfGen::UniWvConfGen(WvConf *_cfg):
  53     tempkey(NULL), tempvalue(), cfg(_cfg)
  54 {
  55     cfg->add_callback(wv::bind(&UniWvConfGen::notify, this, _1, _2, _3, _4, _5),
  56                       NULL, "", "", this);
  57 }
  58
  59
  60 UniWvConfGen::~UniWvConfGen()
  61 {
  62     if (cfg)
  63         delete cfg;
  64 }
  65
  66
  67 WvString UniWvConfGen::get(const UniConfKey &key)
  68 {
  69     if (tempkey && key == *tempkey)
  70         return tempvalue;
  71     else
  72         return cfg->get(key.first(), key.last(key.numsegments() - 1));
  73 }
  74
  75
  76 void UniWvConfGen::set(const UniConfKey &key, WvStringParm value)
  77 {
  78     WvString section = key.first();
  79     WvString keyname = key.last(key.numsegments() - 1);
  80
  81     WvConfigSection *sect = (*cfg)[section];
  82     if (value == WvString::null && sect)
  83         cfg->delete_section(key);
  84     else
  85         cfg->set(section, keyname, value);
  86 }
  87
  88
  89 void UniWvConfGen::setv(const UniConfPairList &pairs)
  90 {
  91     setv_naive(pairs);
  92 }
  93
  94
  95 bool UniWvConfGen::haschildren(const UniConfKey &key)
  96 {
  97     WvConfigSection *sect = (*cfg)[key];
  98     if (sect)
  99         return true;
 100     return false;
 101 }
 102
 103
 104 UniWvConfGen::Iter *UniWvConfGen::iterator(const UniConfKey &key)
 105 {
 106     WvConfigSection *sect = (*cfg)[key];
 107
 108     if (sect)
 109         return new WvConfIter(sect);
 110     else
 111         return NULL;
 112 }
 113
 114
 115
 116 /***** UniWvConfGen::WvConfIter *****/
 117
 118 UniWvConfGen::WvConfIter::WvConfIter(WvConfigSection *sect)
 119     : i(*sect)
 120 {
 121 }
 122
 123
 124 void UniWvConfGen::WvConfIter::rewind()
 125 {
 126     i.rewind();
 127 }
 128
 129
 130 bool UniWvConfGen::WvConfIter::next()
 131 {
 132     return i.next();
 133 }
 134
 135
 136 UniConfKey UniWvConfGen::WvConfIter::key() const
 137 {
 138     return i->name;
 139 }
 140
 141
 142 WvString UniWvConfGen::WvConfIter::value() const
 143 {
 144     return i->value;
 145 }