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| 1 | +package wrappers; |
| 2 | + |
| 3 | +import java.io.BufferedReader; |
| 4 | +import java.io.Console; |
| 5 | +import java.io.IOException; |
| 6 | +import java.io.InputStreamReader; |
| 7 | +import java.util.Set; |
| 8 | + |
| 9 | +public class Client3 { |
| 10 | + static boolean DEBUG = true; |
| 11 | + static final Console c = System.console(); |
| 12 | + static Mongo3Interface jdi = null; |
| 13 | + |
| 14 | + public static void main(String[] args) { |
| 15 | + int rc, level = 0; |
| 16 | + boolean brc, desc = false; |
| 17 | + Set<String> columns; |
| 18 | + String[] parms = new String[4]; |
| 19 | + |
| 20 | + jdi = new Mongo3Interface(DEBUG); |
| 21 | + |
| 22 | + parms[0] = getLine("URI: ", false); |
| 23 | + parms[1] = getLine("Database: ", false); |
| 24 | + parms[2] = null; |
| 25 | + parms[3] = null; |
| 26 | + |
| 27 | + if (parms[0] == null) |
| 28 | + parms[0] = "mongodb://localhost:27017"; |
| 29 | + |
| 30 | + if (parms[1] == null) |
| 31 | + parms[1] = "test"; |
| 32 | + |
| 33 | + rc = jdi.MongoConnect(parms); |
| 34 | + |
| 35 | + if (rc == 0) { |
| 36 | + String name, pipeline, query, fields; |
| 37 | + System.out.println("Successfully connected to " + parms[0]); |
| 38 | + |
| 39 | + while ((name = getLine("Collection: ", false)) != null) { |
| 40 | + if (jdi.GetCollection(name)) |
| 41 | + System.out.println("GetCollection failed"); |
| 42 | + else |
| 43 | + System.out.println("Collection size: " + jdi.GetCollSize()); |
| 44 | + |
| 45 | + pipeline = getLine("Pipeline: ", false); |
| 46 | + |
| 47 | + if (pipeline == null || (desc = pipeline.equals("*"))) { |
| 48 | + query = getLine("Filter: ", false); |
| 49 | + fields = getLine("Proj: ", false); |
| 50 | + |
| 51 | + if (desc) |
| 52 | + level = Integer.parseInt(getLine("Level: ", false)); |
| 53 | + |
| 54 | + brc = jdi.FindColl(query, fields); |
| 55 | + } else |
| 56 | + brc = jdi.AggregateColl(pipeline); |
| 57 | + |
| 58 | + System.out.println("Returned brc = " + brc); |
| 59 | + |
| 60 | + if (!brc && !desc) { |
| 61 | + for (int i = 0; jdi.ReadNext() > 0 && i < 10; i++) { |
| 62 | + columns = jdi.GetColumns(); |
| 63 | + |
| 64 | + for (String col : columns) |
| 65 | + System.out.println(col + "=" + jdi.GetField(col)); |
| 66 | + |
| 67 | + if (name.equalsIgnoreCase("gtst")) |
| 68 | + System.out.println("gtst=" + jdi.GetField("*")); |
| 69 | + |
| 70 | + if (name.equalsIgnoreCase("inventory")) { |
| 71 | + System.out.println("warehouse=" + jdi.GetField("instock.0.warehouse")); |
| 72 | + System.out.println("quantity=" + jdi.GetField("instock.1.qty")); |
| 73 | + } // endif inventory |
| 74 | + |
| 75 | + if (name.equalsIgnoreCase("restaurants")) { |
| 76 | + System.out.println("score=" + jdi.GetField("grades.0.score")); |
| 77 | + System.out.println("date=" + jdi.GetField("grades.0.date")); |
| 78 | + } // endif inventory |
| 79 | + |
| 80 | + } // endfor i |
| 81 | + |
| 82 | + } else if (desc) { |
| 83 | + int ncol; |
| 84 | + |
| 85 | + for (int i = 0; (ncol = jdi.ReadNext()) > 0 && i < 2; i++) { |
| 86 | + if (discovery(null, "", ncol, level)) |
| 87 | + break; |
| 88 | + |
| 89 | + System.out.println("--------------"); |
| 90 | + } // endfor i |
| 91 | + |
| 92 | + } // endif desc |
| 93 | + |
| 94 | + } // endwhile query |
| 95 | + |
| 96 | + rc = jdi.MongoDisconnect(); |
| 97 | + System.out.println("Disconnect returned " + rc); |
| 98 | + } else |
| 99 | + System.out.println(jdi.GetErrmsg() + " rc=" + rc); |
| 100 | + |
| 101 | + } // end of main |
| 102 | + |
| 103 | + private static boolean discovery(Object obj, String name, int ncol, int level) { |
| 104 | + int[] val = new int[5]; |
| 105 | + Object ret = null; |
| 106 | + String bvn = null; |
| 107 | + |
| 108 | + for (int k = 0; k < ncol; k++) { |
| 109 | + ret = jdi.ColumnDesc(obj, k, val, level); |
| 110 | + bvn = jdi.ColDescName(); |
| 111 | + |
| 112 | + if (ret != null) |
| 113 | + discovery(ret, name.concat(bvn).concat("."), val[4], level - 1); |
| 114 | + else if (val[0] > 0) |
| 115 | + System.out.println( |
| 116 | + name + bvn + ": type=" + val[0] + " length=" + val[1] + " prec=" + val[2] + " nullable=" + val[3]); |
| 117 | + else if (val[0] < 0) |
| 118 | + System.out.println(jdi.GetErrmsg()); |
| 119 | + |
| 120 | + } // endfor k |
| 121 | + |
| 122 | + return false; |
| 123 | + } // end of discovery |
| 124 | + |
| 125 | + // ================================================================== |
| 126 | + private static String getLine(String p, boolean b) { |
| 127 | + String response; |
| 128 | + |
| 129 | + if (c != null) { |
| 130 | + // Standard console mode |
| 131 | + if (b) { |
| 132 | + response = new String(c.readPassword(p)); |
| 133 | + } else |
| 134 | + response = c.readLine(p); |
| 135 | + |
| 136 | + } else { |
| 137 | + // For instance when testing from Eclipse |
| 138 | + BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
| 139 | + |
| 140 | + System.out.print(p); |
| 141 | + |
| 142 | + try { |
| 143 | + // Cannot suppress echo for password entry |
| 144 | + response = in.readLine(); |
| 145 | + } catch (IOException e) { |
| 146 | + response = ""; |
| 147 | + } // end of try/catch |
| 148 | + |
| 149 | + } // endif c |
| 150 | + |
| 151 | + return (response.isEmpty()) ? null : response; |
| 152 | + } // end of getLine |
| 153 | + |
| 154 | +} // end of class Client |
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