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package org.melati.admin; |
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import java.util.Enumeration; |
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import org.melati.LogicalDatabase; |
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import org.melati.Melati; |
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import org.melati.poem.Database; |
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import org.melati.poem.Field; |
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import org.melati.poem.Persistent; |
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import org.melati.poem.PoemTask; |
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import org.melati.poem.PoemThread; |
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import org.melati.poem.Table; |
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import org.melati.poem.util.MappedEnumeration; |
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import org.melati.servlet.PathInfoException; |
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import org.melati.servlet.TemplateServlet; |
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import org.melati.template.ServletTemplateContext; |
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| 69 | 0 | public class Copy extends TemplateServlet { |
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private static final long serialVersionUID = 1L; |
| 75 | 2 | static Database fromDb = null; |
| 76 | 2 | static Database toDb = null; |
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protected void prePoemSession(Melati melati) throws Exception { |
| 84 | 0 | super.prePoemSession(melati); |
| 85 | 0 | String[] parts = melati.getPathInfoParts(); |
| 86 | 0 | if (parts.length != 2) |
| 87 | 0 | throw new PathInfoException("Two database names expecetd"); |
| 88 | 0 | String fromDbName = parts[0]; |
| 89 | 0 | String toDbName = parts[1]; |
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| 91 | 0 | copy(fromDbName, toDbName); |
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| 93 | 0 | } |
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protected String doTemplateRequest(Melati melati, |
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ServletTemplateContext templateContext) throws Exception { |
| 101 | 0 | melati.setPassbackExceptionHandling(); |
| 102 | 0 | melati.setResponseContentType("text/html"); |
| 103 | 0 | templateContext.put("admin", new AdminUtils(melati)); |
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| 105 | 0 | String[] parts = melati.getPathInfoParts(); |
| 106 | 0 | String fromDbName = parts[0]; |
| 107 | 0 | String toDbName = parts[1]; |
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| 109 | 0 | templateContext.put("fromDbName",fromDbName); |
| 110 | 0 | templateContext.put("toDbName",toDbName); |
| 111 | 0 | return "org/melati/admin/CopyDone"; |
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} |
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public static Database copy(String from, String to) { |
| 120 | 2 | fromDb = LogicalDatabase.getDatabase(from); |
| 121 | 2 | toDb = LogicalDatabase.getDatabase(to); |
| 122 | 2 | return copy(); |
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} |
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public static Database copy(Database fromDbIn, final Database toDbIn) { |
| 130 | 4 | fromDb = fromDbIn; |
| 131 | 4 | toDb = toDbIn; |
| 132 | 4 | return copy(); |
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} |
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public static Database copy() { |
| 138 | 6 | if (fromDb.getClass() != toDb.getClass()) |
| 139 | 2 | throw new AnticipatedException("Both from(" + fromDb.getClass() + ") and " + |
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"to(" + toDb.getClass() + ") databases " + |
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"must be of the same class"); |
| 142 | 4 | toDb.inSessionAsRoot( |
| 143 | 4 | new PoemTask() { |
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public void run() { |
| 145 | 4 | System.err.println("PoemThread " + PoemThread.database().getDisplayName()); |
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try { |
| 147 | 4 | Enumeration<Table> en = fromDb.getDisplayTables(null); |
| 148 | 100 | while(en.hasMoreElements()) { |
| 149 | 96 | Table fromTable = (Table)en.nextElement(); |
| 150 | 96 | String fromTableName = fromTable.getName(); |
| 151 | 96 | System.err.println("From " + fromDb + " table " + fromTableName); |
| 152 | 96 | Table toTable = toDb.getTable(fromTableName); |
| 153 | 96 | int count = toTable.count(); |
| 154 | 96 | if (count != 0 ) { |
| 155 | 38 | System.err.println("Skipping " + toTable.getName() + " as it contains " + count + " records." ); |
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} else { |
| 157 | 58 | System.err.println(toTable.getName() + " in both and empty in destination."); |
| 158 | 58 | Enumeration<Persistent> recs = objectsFromTroids( |
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fromTable.troidSelection((String)null, |
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(String)null, false, null), |
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fromTable); |
| 162 | 60 | while (recs.hasMoreElements()) { |
| 163 | 2 | Persistent p = (Persistent)recs.nextElement(); |
| 164 | 2 | Persistent p2 = toTable.newPersistent(); |
| 165 | 2 | Enumeration<Field> fields = p.getFields(); |
| 166 | 8 | while (fields.hasMoreElements()) { |
| 167 | 6 | Field f = fields.nextElement(); |
| 168 | 6 | p2.setRaw(f.getName(), f.getRaw()); |
| 169 | 6 | } |
| 170 | 2 | p2.makePersistent(); |
| 171 | 2 | System.err.println("Created:" + p2.displayString()); |
| 172 | 2 | } |
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} |
| 174 | 96 | } |
| 175 | 0 | } catch (Throwable e) { |
| 176 | 0 | e.printStackTrace(); |
| 177 | 0 | e.fillInStackTrace(); |
| 178 | 0 | throw new RuntimeException(e); |
| 179 | 4 | } |
| 180 | 4 | } |
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public String toString() { |
| 182 | 0 | return "Copying"; |
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} |
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}); |
| 185 | 4 | return toDb; |
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} |
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static Enumeration<Persistent> objectsFromTroids(Enumeration<Integer> troids, final Table t) { |
| 189 | 60 | return new MappedEnumeration<Persistent, Integer>(troids) { |
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public Persistent mapped(Integer troid) { |
| 191 | 2 | return t.getObject(troid); |
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} |
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}; |
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} |
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} |