Mercurial > dive4elements > river
comparison etl/src/main/java/org/dive4elements/river/etl/db/Statements.java @ 5838:5aa05a7a34b7
Rename modules to more fitting names.
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 15:23:37 +0200 |
| parents | flys-aft/src/main/java/org/dive4elements/river/etl/db/Statements.java@9438e9259213 |
| children | 8bd9b551456c |
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| 5837:d9901a08d0a6 | 5838:5aa05a7a34b7 |
|---|---|
| 1 package org.dive4elements.river.etl.db; | |
| 2 | |
| 3 import java.io.IOException; | |
| 4 import java.io.InputStream; | |
| 5 | |
| 6 import java.util.Enumeration; | |
| 7 import java.util.HashMap; | |
| 8 import java.util.Map; | |
| 9 import java.util.Properties; | |
| 10 | |
| 11 import org.apache.log4j.Logger; | |
| 12 | |
| 13 public class Statements | |
| 14 { | |
| 15 private static Logger log = Logger.getLogger(Statements.class); | |
| 16 | |
| 17 public static final String RESOURCE_PATH = "/sql/"; | |
| 18 public static final String COMMON_PROPERTIES = "-common.properties"; | |
| 19 | |
| 20 protected String type; | |
| 21 protected String driver; | |
| 22 | |
| 23 protected Map<String, SymbolicStatement> statements; | |
| 24 | |
| 25 public Statements(String type, String driver) { | |
| 26 this.type = type; | |
| 27 this.driver = driver; | |
| 28 } | |
| 29 | |
| 30 public SymbolicStatement getStatement(String key) { | |
| 31 return getStatements().get(key); | |
| 32 } | |
| 33 | |
| 34 public Map<String, SymbolicStatement> getStatements() { | |
| 35 if (statements == null) { | |
| 36 statements = loadStatements(); | |
| 37 } | |
| 38 return statements; | |
| 39 } | |
| 40 | |
| 41 protected Map<String, SymbolicStatement> loadStatements() { | |
| 42 Map<String, SymbolicStatement> statements = | |
| 43 new HashMap<String, SymbolicStatement>(); | |
| 44 | |
| 45 Properties properties = loadProperties(); | |
| 46 | |
| 47 for (Enumeration<?> e = properties.propertyNames(); e.hasMoreElements();) { | |
| 48 String key = (String)e.nextElement(); | |
| 49 String value = properties.getProperty(key); | |
| 50 SymbolicStatement symbolic = new SymbolicStatement(value); | |
| 51 statements.put(key, symbolic); | |
| 52 } | |
| 53 | |
| 54 return statements; | |
| 55 } | |
| 56 | |
| 57 protected String driverToProperties() { | |
| 58 return | |
| 59 type + "-" + | |
| 60 driver.replace('.', '-').toLowerCase() + ".properties"; | |
| 61 } | |
| 62 | |
| 63 protected Properties loadCommon() { | |
| 64 Properties common = new Properties(); | |
| 65 | |
| 66 String path = RESOURCE_PATH + type + COMMON_PROPERTIES; | |
| 67 | |
| 68 InputStream in = Statements.class.getResourceAsStream(path); | |
| 69 | |
| 70 if (in != null) { | |
| 71 try { | |
| 72 common.load(in); | |
| 73 } | |
| 74 catch (IOException ioe) { | |
| 75 log.error("cannot load defaults: " + path, ioe); | |
| 76 } | |
| 77 finally { | |
| 78 try { | |
| 79 in.close(); | |
| 80 } | |
| 81 catch (IOException ioe) { | |
| 82 } | |
| 83 } | |
| 84 } | |
| 85 else { | |
| 86 log.warn("cannot find: " + path); | |
| 87 } | |
| 88 | |
| 89 return common; | |
| 90 } | |
| 91 | |
| 92 protected Properties loadProperties() { | |
| 93 | |
| 94 Properties common = loadCommon(); | |
| 95 | |
| 96 Properties properties = new Properties(common); | |
| 97 | |
| 98 String path = RESOURCE_PATH + driverToProperties(); | |
| 99 | |
| 100 InputStream in = Statements.class.getResourceAsStream(path); | |
| 101 | |
| 102 if (in != null) { | |
| 103 try { | |
| 104 properties.load(in); | |
| 105 } | |
| 106 catch (IOException ioe) { | |
| 107 log.error("cannot load statements: " + path, ioe); | |
| 108 } | |
| 109 finally { | |
| 110 try { | |
| 111 in.close(); | |
| 112 } | |
| 113 catch (IOException ioe) { | |
| 114 } | |
| 115 } | |
| 116 } | |
| 117 else { | |
| 118 log.warn("cannot find: " + path); | |
| 119 } | |
| 120 | |
| 121 return properties; | |
| 122 } | |
| 123 } | |
| 124 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |