object.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* 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. *
* *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "jfileinputstream.h"
#include "jfileoutputstream.h"
#include "jobjectinputstream.h"
#include "jobjectoutputstream.h"
#include "jserializable.h"
#include "jjson.h"
#include <iostream>
#include <sstream>
using namespace std;
using namespace jio;
class Complex : public Serializable {
private:
int real,
imaginary;
public:
Complex():
jio::Serializable()
{
Serializable::SetClassName("Complex");
real = 0;
imaginary = 0;
}
Complex(int r, int i):
jio::Serializable()
{
Serializable::SetClassName("Complex");
real = r;
imaginary = i;
}
virtual ~Complex()
{
}
virtual std::string SerializeObject()
{
std::ostringstream o;
o << "{\"real\":" << real << ", \"imaginary\":" << imaginary << "}";
return o.str();
}
virtual void AssemblyObject(std::string object)
{
jcommon::JSONDomParser parser;
parser.append(object.c_str(), object.size());
if (NULL != parser.getError()) {
return;
}
jcommon::JSONIterator iterator(parser.getValue());
for (const jcommon::JSONNode *node=iterator.getNext(); node!=NULL; node=iterator.getNext()) {
if (node->getType() == jcommon::JSONNode::ePair) {
jcommon::JSONPairNode *pnode = ((jcommon::JSONPairNode*)node);
jcommon::JSONIntNode *inode = ((jcommon::JSONIntNode*)pnode->getValue());
if (strcmp(pnode->getName(), "real") == 0) {
real = inode->getValue();
} else if (strcmp(pnode->getName(), "imaginary") == 0) {
imaginary = inode->getValue();
}
}
}
}
virtual std::string what()
{
std::ostringstream o;
o << real;
if (imaginary < 0) {
o << " - ";
} else {
o << " + ";
}
o << imaginary << "i";
return o.str();
}
};
class ObjectInputStreamImpl : public ObjectInputStream {
public:
ObjectInputStreamImpl(InputStream *is):
ObjectInputStream(is)
{
}
virtual jcommon::Object * CreateObject(std::string id)
{
if (id == "Complex") {
return new Complex();
}
return NULL;
}
};
int main()
{
Complex *a,
s(2, 3);
FileOutputStream *fos = new FileOutputStream("/tmp/obj");
FileInputStream *fis = new FileInputStream("/tmp/obj");
ObjectOutputStream *oos = new ObjectOutputStream(fos);
ObjectInputStream *ois = new ObjectInputStreamImpl(fis);
oos->Write(&s);
oos->Flush();
a = (Complex *)ois->Read();
if (a != NULL) {
std::cout << "Complex [" << a->what() << "]" << std::endl;
}
delete a;
delete oos;
delete ois;
delete fos;
delete fis;
return EXIT_SUCCESS;
}