| Methods Summary |
|---|
| public void | addBeans(int added) beans += added;
|
| public void | addCheese(int added)
// Add to the inventory as more servings are prepared.
cheese += added;
|
| public void | addChicken(int added) chicken += added;
|
| public void | addRice(int added) rice += added;
|
| public void | destroy()
saveState();
|
| public void | doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
res.setContentType("text/html");
PrintWriter out = res.getWriter();
out.println("<HTML><HEAD><TITLE>Current Ingredients</TITLE></HEAD>");
out.println("<BODY>");
out.println("<TABLE BORDER=1>");
out.println("<TR><TH COLSPAN=2>Current ingredients:</TH></TR>");
out.println("<TR><TD>Cheese:</TD><TD>" + cheese + "</TD></TR>");
out.println("<TR><TD>Rice:</TD><TD>" + rice + "</TD></TR>");
out.println("<TR><TD>Beans:</TD><TD>" + beans + "</TD></TR>");
out.println("<TR><TD>Chicken:</TD><TD>" + chicken + "</TD></TR>");
out.println("</TABLE>");
out.println("</BODY></HTML>");
|
| public void | init(javax.servlet.ServletConfig config)
super.init(config);
loadState();
|
| public void | loadState()
// Try to load the counts
FileInputStream file = null;
try {
file = new FileInputStream("BurritoInventoryServlet.state");
DataInputStream in = new DataInputStream(file);
cheese = in.readInt();
rice = in.readInt();
beans = in.readInt();
chicken = in.readInt();
file.close();
return;
}
catch (IOException ignored) {
// Problem during read
}
finally {
try { if (file != null) file.close(); }
catch (IOException ignored) { }
}
|
| public synchronized boolean | makeBurrito()
// Burritos require one serving of each item
if (cheese > 0 && rice > 0 && beans > 0 && chicken > 0) {
cheese--; rice--; beans--; chicken--;
return true; // can make the burrito
}
else {
// Could order more ingredients
return false; // cannot make the burrito
}
|
| public void | saveState()
// Try to save the counts
FileOutputStream file = null;
try {
file = new FileOutputStream("BurritoInventoryServlet.state");
DataOutputStream out = new DataOutputStream(file);
out.writeInt(cheese);
out.writeInt(rice);
out.writeInt(beans);
out.writeInt(chicken);
return;
}
catch (IOException ignored) {
// Problem during write
}
finally {
try { if (file != null) file.close(); }
catch (IOException ignored) { }
}
|
