Examples with AddUniqueConstraintHandler org.apache.hadoop.hive.ql.parse.repl.load.message.AddUniqueConstraintHandler used on opensource projects

Example 1 with AddUniqueConstraintHandler

use of org.apache.hadoop.hive.ql.parse.repl.load.message.AddUniqueConstraintHandler in project hive by apache.

the class LoadConstraint method tasks.

public TaskTracker tasks() throws IOException, SemanticException {
    URI fromURI = EximUtil.getValidatedURI(context.hiveConf, stripQuotes(event.rootDir().toUri().toString()));
    Path fromPath = new Path(fromURI.getScheme(), fromURI.getAuthority(), fromURI.getPath());
    try {
        FileSystem fs = FileSystem.get(fromPath.toUri(), context.hiveConf);
        JSONObject json = new JSONObject(EximUtil.readAsString(fs, fromPath));
        String pksString = json.getString("pks");
        String fksString = json.getString("fks");
        String uksString = json.getString("uks");
        String nnsString = json.getString("nns");
        List<Task<? extends Serializable>> tasks = new ArrayList<Task<? extends Serializable>>();
        if (pksString != null && !pksString.isEmpty()) {
            AddPrimaryKeyHandler pkHandler = new AddPrimaryKeyHandler();
            DumpMetaData pkDumpMetaData = new DumpMetaData(fromPath, DumpType.EVENT_ADD_PRIMARYKEY, Long.MAX_VALUE, Long.MAX_VALUE, null, context.hiveConf);
            pkDumpMetaData.setPayload(pksString);
            tasks.addAll(pkHandler.handle(new MessageHandler.Context(dbNameToLoadIn, null, fromPath.toString(), null, pkDumpMetaData, context.hiveConf, context.hiveDb, null, LOG)));
        }
        if (uksString != null && !uksString.isEmpty()) {
            AddUniqueConstraintHandler ukHandler = new AddUniqueConstraintHandler();
            DumpMetaData ukDumpMetaData = new DumpMetaData(fromPath, DumpType.EVENT_ADD_UNIQUECONSTRAINT, Long.MAX_VALUE, Long.MAX_VALUE, null, context.hiveConf);
            ukDumpMetaData.setPayload(uksString);
            tasks.addAll(ukHandler.handle(new MessageHandler.Context(dbNameToLoadIn, null, fromPath.toString(), null, ukDumpMetaData, context.hiveConf, context.hiveDb, null, LOG)));
        }
        if (nnsString != null && !nnsString.isEmpty()) {
            AddNotNullConstraintHandler nnHandler = new AddNotNullConstraintHandler();
            DumpMetaData nnDumpMetaData = new DumpMetaData(fromPath, DumpType.EVENT_ADD_NOTNULLCONSTRAINT, Long.MAX_VALUE, Long.MAX_VALUE, null, context.hiveConf);
            nnDumpMetaData.setPayload(nnsString);
            tasks.addAll(nnHandler.handle(new MessageHandler.Context(dbNameToLoadIn, null, fromPath.toString(), null, nnDumpMetaData, context.hiveConf, context.hiveDb, null, LOG)));
        }
        if (fksString != null && !fksString.isEmpty()) {
            AddForeignKeyHandler fkHandler = new AddForeignKeyHandler();
            DumpMetaData fkDumpMetaData = new DumpMetaData(fromPath, DumpType.EVENT_ADD_FOREIGNKEY, Long.MAX_VALUE, Long.MAX_VALUE, null, context.hiveConf);
            fkDumpMetaData.setPayload(fksString);
            tasks.addAll(fkHandler.handle(new MessageHandler.Context(dbNameToLoadIn, null, fromPath.toString(), null, fkDumpMetaData, context.hiveConf, context.hiveDb, null, LOG)));
        }
        tasks.forEach(tracker::addTask);
        return tracker;
    } catch (Exception e) {
        throw new SemanticException(ErrorMsg.INVALID_PATH.getMsg(), e);
    }
}