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1
23
24 package examples.invoice.applications;
25
26 import examples.invoice.persistclass.MapHelper;
27 import examples.invoice.persistclass.Product;
28 import examples.invoice.persistclass.ProductHelper;
29 import org.objectweb.jorm.api.PException;
30 import org.objectweb.jorm.naming.api.PName;
31
32 import java.util.Iterator  ;
33 import java.io.InputStream ;
34 import javax.resource.ResourceException ;
35
36
39 public class ProductAppli implements ShellExtent {
40 private static ProductAppli singleton = new ProductAppli();
41 private ProductHelper mapHelper;
42 private BasicShell basicShell;
43
44 public static ProductAppli getInstance() {
45 if (singleton == null) {
46 singleton = new ProductAppli();
47 }
48 return singleton;
49 }
50
51 private ProductAppli() {
52 mapHelper = new ProductHelper();
53 basicShell = BasicShell.getInstance();
54 }
55
56 public boolean interpCmd(String cmd) {
57 if (cmd.equals("cp") || cmd.equals("createproduct"))
58 createProduct();
59 else if (cmd.equals("lp") || cmd.equals("listproduct"))
60 listProduct();
61 else if (cmd.equals("dp") || cmd.equals("deleteproduct"))
62 deleteProduct();
63 else
64 return false;
65 return true;
66 }
67
68 public void help() {
69 System.out.println("\t\t- createproduct | cp : creates a new Product using the active mapper.");
70 System.out.println("\t\t- listproduct | lp : lists existing Products using the active mapper.");
71 System.out.println("\t\t- deleteproduct | dp : deletes an existing Product using the active mapper.");
72 }
73
74 public MapHelper getHelper() {
75 return mapHelper;
76 }
77
78 public static void main(String [] args) {
79 InputStream in = System.in;
80 try {
81 switch (args.length) {
82 case 2:
83 in = ObsInputStream.observes(args[1]);
84 case 1:
85 BasicShell.getInstance().shellLoop(args[0], getInstance(), in);
86 break;
87 default:
88 System.err.println("Usage: AddressAppli prop_file_name [jormexsh_cmdfile]");
89 System.exit(-1);
90 }
91 } catch (Exception e) {
92 System.err.println("Exit with exception: " + e.getMessage());
93 do {
94 e.printStackTrace();
95 if (e instanceof PException)
96 e = ((PException) e).getNestedException();
97 if (e instanceof ResourceException )
98 e = ((ResourceException ) e).getLinkedException();
99 else
100 e = null;
101 } while (e != null);
102 }
103 }
104
105 private void createProduct() {
106 if (basicShell.activeMapper == null) {
107 basicShell.errorMsg("requires an active mapper (run <activatemapper> command before)");
108 return;
109 }
110 try {
111 String n, s, c, w, p;
112 n = basicShell.promptString("\tName: ", 50);
113 s = basicShell.promptString("\tSize: ", 4);
114 c = basicShell.promptString("\tColor: ", 20);
115 w = basicShell.promptString("\tWeight: ", 10);
116 p = basicShell.promptString("\tPrice: ", 10);
117 if ((n == null) || (s == null) || (c == null) || (w == null) || (p == null) ||
118 (n.length() == 0) || (s.length() == 0) || (c.length() == 0) || (w.length() == 0) || (p.length() == 0)) {
119 basicShell.errorMsg("wrong name, size, color, weight or price (mandatory)");
120 return;
121 }
122 float wf, pf;
123 wf = Float.parseFloat(w);
124 pf = Float.parseFloat(p);
125 Product pr = mapHelper.createProduct(basicShell.activeMapper,
126 n, s.charAt(0), c, wf, pf);
127 System.out.println("\tCreated Product:\n\t\t" + pr.toPrintable());
128 } catch (PException e) {
129 System.out.println("\n\tEXCEPTION");
130 e.printStackTrace();
131 if (e.getNestedException() != null)
132 e.getNestedException().printStackTrace();
133 System.out.println();
134 } catch (Exception e) {
135 System.out.println("\n\tEXCEPTION");
136 e.printStackTrace();
137 System.out.println();
138 }
139 }
140
141 private void listProduct() {
142 if (basicShell.activeMapper == null) {
143 basicShell.errorMsg("requires an active mapper (run <activatemapper> command before)");
144 return;
145 }
146 try {
147 Iterator pit = mapHelper.listProducts(basicShell.activeMapper);
148 System.out.println("\tExisting Products:");
149 while (pit.hasNext()) {
150 PName pn = (PName) pit.next();
151 Product p = mapHelper.getProduct(basicShell.activeMapper, pn);
152 System.out.println("\t\t" + p.toPrintable());
153 }
154 } catch (Exception e) {
155 System.out.println("\n\tEXCEPTION");
156 e.printStackTrace();
157 System.out.println();
158 }
159 }
160
161 private void deleteProduct() {
162 if (basicShell.activeMapper == null) {
163 basicShell.errorMsg("requires an active mapper (run <activatemapper> command before)");
164 return;
165 }
166 String sid;
167 sid = basicShell.promptString("\tID: ", 200);
168 try {
169 if (mapHelper.deleteProduct(basicShell.activeMapper, sid))
170 System.out.println("Product deleted.");
171 else
172 basicShell.errorMsg("cannot delete Product");
173 } catch (Exception e) {
174 System.out.println("\n\tEXCEPTION");
175 e.printStackTrace();
176 System.out.println();
177 }
178 }
179 }
180 |
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