diff options
Diffstat (limited to 'storage/connect/Client3.java')
-rw-r--r-- | storage/connect/Client3.java | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/storage/connect/Client3.java b/storage/connect/Client3.java new file mode 100644 index 00000000..0d3914cd --- /dev/null +++ b/storage/connect/Client3.java @@ -0,0 +1,154 @@ +package wrappers; + +import java.io.BufferedReader; +import java.io.Console; +import java.io.IOException; +import java.io.InputStreamReader; +import java.util.Set; + +public class Client3 { + static boolean DEBUG = true; + static final Console c = System.console(); + static Mongo3Interface jdi = null; + + public static void main(String[] args) { + int rc, level = 0; + boolean brc, desc = false; + Set<String> columns; + String[] parms = new String[4]; + + jdi = new Mongo3Interface(DEBUG); + + parms[0] = getLine("URI: ", false); + parms[1] = getLine("Database: ", false); + parms[2] = null; + parms[3] = null; + + if (parms[0] == null) + parms[0] = "mongodb://localhost:27017"; + + if (parms[1] == null) + parms[1] = "test"; + + rc = jdi.MongoConnect(parms); + + if (rc == 0) { + String name, pipeline, query, fields; + System.out.println("Successfully connected to " + parms[0]); + + while ((name = getLine("Collection: ", false)) != null) { + if (jdi.GetCollection(name)) + System.out.println("GetCollection failed"); + else + System.out.println("Collection size: " + jdi.GetCollSize()); + + pipeline = getLine("Pipeline: ", false); + + if (pipeline == null || (desc = pipeline.equals("*"))) { + query = getLine("Filter: ", false); + fields = getLine("Proj: ", false); + + if (desc) + level = Integer.parseInt(getLine("Level: ", false)); + + brc = jdi.FindColl(query, fields); + } else + brc = jdi.AggregateColl(pipeline); + + System.out.println("Returned brc = " + brc); + + if (!brc && !desc) { + for (int i = 0; jdi.ReadNext() > 0 && i < 10; i++) { + columns = jdi.GetColumns(); + + for (String col : columns) + System.out.println(col + "=" + jdi.GetField(col)); + + if (name.equalsIgnoreCase("gtst")) + System.out.println("gtst=" + jdi.GetField("*")); + + if (name.equalsIgnoreCase("inventory")) { + System.out.println("warehouse=" + jdi.GetField("instock.0.warehouse")); + System.out.println("quantity=" + jdi.GetField("instock.1.qty")); + } // endif inventory + + if (name.equalsIgnoreCase("restaurants")) { + System.out.println("score=" + jdi.GetField("grades.0.score")); + System.out.println("date=" + jdi.GetField("grades.0.date")); + } // endif inventory + + } // endfor i + + } else if (desc) { + int ncol; + + for (int i = 0; (ncol = jdi.ReadNext()) > 0 && i < 2; i++) { + if (discovery(null, "", ncol, level)) + break; + + System.out.println("--------------"); + } // endfor i + + } // endif desc + + } // endwhile query + + rc = jdi.MongoDisconnect(); + System.out.println("Disconnect returned " + rc); + } else + System.out.println(jdi.GetErrmsg() + " rc=" + rc); + + } // end of main + + private static boolean discovery(Object obj, String name, int ncol, int level) { + int[] val = new int[5]; + Object ret = null; + String bvn = null; + + for (int k = 0; k < ncol; k++) { + ret = jdi.ColumnDesc(obj, k, val, level); + bvn = jdi.ColDescName(); + + if (ret != null) + discovery(ret, name.concat(bvn).concat("."), val[4], level - 1); + else if (val[0] > 0) + System.out.println( + name + bvn + ": type=" + val[0] + " length=" + val[1] + " prec=" + val[2] + " nullable=" + val[3]); + else if (val[0] < 0) + System.out.println(jdi.GetErrmsg()); + + } // endfor k + + return false; + } // end of discovery + + // ================================================================== + private static String getLine(String p, boolean b) { + String response; + + if (c != null) { + // Standard console mode + if (b) { + response = new String(c.readPassword(p)); + } else + response = c.readLine(p); + + } else { + // For instance when testing from Eclipse + BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); + + System.out.print(p); + + try { + // Cannot suppress echo for password entry + response = in.readLine(); + } catch (IOException e) { + response = ""; + } // end of try/catch + + } // endif c + + return (response.isEmpty()) ? null : response; + } // end of getLine + +} // end of class Client |