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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* $Rev$ $Date$ */
#include <iostream>
#include <stdlib.h>
#include "osoa/sca/sca.h"
#include "Calculator.h"
using namespace std;
using namespace osoa::sca;
void usage();
bool IsNumber(const char *p);
int main(int argc, char* argv[])
{
const char *operation;
float arg1 = 0;
float arg2 = 0;
if (argc == 4)
{
operation = argv[1];
if (!IsNumber(argv[2]))
{
cout << "calculator_client: Argument 1 is not a number" << endl;
usage();
}
else
{
arg1 = atof(argv[2]);
}
if (!IsNumber(argv[3]))
{
cout << "calculator_client: Argument 2 is not a number" << endl;
usage();
}
else
{
arg2 = atof(argv[3]);
}
}
else
{
usage();
}
try
{
// Locate a service
CompositeContext myContext = CompositeContext::getCurrent();
Calculator *calcService = (Calculator*) myContext.locateService("CalculatorComponent/CalculatorService");
if (calcService == 0)
{
cout << "calculator_client: Unable to find Calculator service" << endl;
}
else
{
float result = 0;
if (strcmp(operation, "add") == 0)
{
result = calcService->add(arg1, arg2);
cout << "calculator_client: add(" << arg1 << "," << arg2 << ") = " << result << endl;
}
else
if (strcmp(operation, "sub") == 0)
{
result = calcService->sub(arg1, arg2);
cout << "calculator_client: sub(" << arg1 << "," << arg2 << ") = " << result << endl;
}
else
if (strcmp(operation, "mul") == 0)
{
result = calcService->mul(arg1, arg2);
cout << "calculator_client: mul(" << arg1 << "," << arg2 << ") = " << result << endl;
}
else
if (strcmp(operation, "div") == 0)
{
result = calcService->div(arg1, arg2);
cout << "calculator_client: div(" << arg1 << "," << arg2 << ") = " << result << endl;
}
else
{
cout << "calculator_client: Unrecognized operation: " << operation << endl;
}
}
}
catch (ServiceRuntimeException& ex)
{
cout << "calculator_client: exception caught: " << ex << endl;
}
return 0;
}
void usage()
{
cout << "Usage: calculator_client add|sub|mul|div arg1 arg2" << endl;
exit(1);
}
bool IsNumber (const char *p)
{
int len = strlen(p);
int pointcount = 0;
if (!isdigit (p[0]) && p[0] != '-' && p[0] != '+')
{
return false;
}
for (int i = 1; i < len; i++)
{
if (!isdigit (p[i]))
{
if (p[i] == '.')
{
if (pointcount > 0) return false;
pointcount++;
}
else
{
return false;
}
}
}
return true;
}
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