Package org.apache.pig.impl.logicalLayer

Examples of org.apache.pig.impl.logicalLayer.LogicalPlanBuilder

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            }

            query = query.trim();
       
            try {
                return new LogicalPlanBuilder(PigServer.this.pigContext).parse(scope, query,
                                              aliases, opTable, aliasOp, startLine, fileNameMap);
            } catch (ParseException e) {
                PigException pe = LogUtils.getPigException(e);
                int errCode = 1000;
                String msg = "Error during parsing. " + (pe == null? e.getMessage() : pe.getMessage());
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            }

            query = query.trim();
       
            try {
                return new LogicalPlanBuilder(PigServer.this.pigContext).parse(scope, query,
                                              aliases, opTable, aliasOp, startLine, fileNameMap);
            } catch (ParseException e) {
                PigException pe = LogUtils.getPigException(e);
                int errCode = 1000;
                String msg = "Error during parsing. " + (pe == null? e.getMessage() : pe.getMessage());
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        // parse the query into a logical plan
        LogicalPlan lp = null;
        LogicalOperator op = null;
        try {
            lp = (new LogicalPlanBuilder(pigContext).parse(scope, query, aliases, opTable));
            op = opTable.get(lp.getRoot());
        } catch (ParseException e) {
            throw (IOException) new IOException(e.getMessage()).initCause(e);
        }
       
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    }

    @Test
    public void testRegressionPig100NoSuchAlias() throws Throwable {
        PigContext pigContext = new PigContext(ExecType.LOCAL, new Properties());
        LogicalPlanBuilder builder = new LogicalPlanBuilder(pigContext);

        boolean caughtIt = false;
        try {
            LogicalPlan lp = builder.parse("test",
                "b = filter c by $0 > '5';", aliases, logicalOpTable);
        } catch (ParseException e) {
            caughtIt = true;
      assertEquals("Unable to find alias:",
        e.getMessage().substring(0, 21));
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    }

    @Test
    public void testRegressionPig100NoAliases() throws Throwable {
        PigContext pigContext = new PigContext(ExecType.LOCAL, new Properties());
        LogicalPlanBuilder builder = new LogicalPlanBuilder(pigContext);

        boolean caughtIt = false;
        try {
            LogicalPlan lp = builder.parse("test",
        "b = filter c by $0 > '5';", null, logicalOpTable);
        } catch (RuntimeException e) {
            caughtIt = true;
      assertEquals("aliases var is not initialize.", e.getMessage());
        }
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    }

    public LogicalPlan buildPlan(String query, ClassLoader cldr) {
        LogicalPlanBuilder.classloader = cldr;
        PigContext pigContext = new PigContext(ExecType.LOCAL, new Properties());
        LogicalPlanBuilder builder = new LogicalPlanBuilder(pigContext); //

        try {
            LogicalPlan lp = builder.parse("Test-Plan-Builder",
                                           query,
                                           aliases,
                                           logicalOpTable);
            if (logicalOpTable.get(lp.getRoot()) instanceof LOEval){
              System.out.println(query);
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            }

            query = query.trim();
       
            try {
                return new LogicalPlanBuilder(PigServer.this.pigContext).parse(scope, query,
                                              aliases, opTable, aliasOp, startLine, fileNameMap);
            } catch (ParseException e) {
                PigException pe = LogUtils.getPigException(e);
                int errCode = 1000;
                String msg = "Error during parsing. " + (pe == null? e.getMessage() : pe.getMessage());
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        Map<LogicalOperator, LogicalPlan> aliases = new HashMap<LogicalOperator, LogicalPlan>();
        Map<OperatorKey, LogicalOperator> logicalOpTable = new HashMap<OperatorKey, LogicalOperator>();
        Map<String, LogicalOperator> aliasOp = new HashMap<String, LogicalOperator>();
        Map<String, String> fileNameMap = new HashMap<String, String>();
       
        LogicalPlanBuilder builder = new LogicalPlanBuilder(pc);
       
        String query = "a = load 'foo';";
        LogicalPlan lp = builder.parse("Test-Store",
                                       query,
                                       aliases,
                                       logicalOpTable,
                                       aliasOp,
                                       fileNameMap);
        query = "store a into '"+orig+"';";
        lp = builder.parse("Test-Store",
                           query,
                           aliases,
                           logicalOpTable,
                           aliasOp,
                           fileNameMap);
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    }

    public LogicalPlan buildPlan(String query, ClassLoader cldr) {
        LogicalPlanBuilder.classloader = cldr;

        LogicalPlanBuilder builder = new LogicalPlanBuilder(pigContext); //

        try {
            String[] qs = query.split(";");
            LogicalPlan lp = null;
            for (String q: qs) {
                q = q.trim();
                if (q.equals(""))
                    continue;
                q += ";";
                System.out.println(q);
                lp = builder.parse("Test-Plan-Builder", q, aliases,
                                   logicalOpTable, aliasOp, fileNameMap);
            }

            List<LogicalOperator> roots = lp.getRoots();
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        Map<LogicalOperator, LogicalPlan> aliases = new HashMap<LogicalOperator, LogicalPlan>();
        Map<OperatorKey, LogicalOperator> logicalOpTable = new HashMap<OperatorKey, LogicalOperator>();
        Map<String, LogicalOperator> aliasOp = new HashMap<String, LogicalOperator>();
        Map<String, String> fileNameMap = new HashMap<String, String>();
       
        LogicalPlanBuilder builder = new LogicalPlanBuilder(pc);
       
        String query = "a = load '"+orig+"';";
        LogicalPlan lp = builder.parse("Test-Load",
                                       query,
                                       aliases,
                                       logicalOpTable,
                                       aliasOp,
                                       fileNameMap);
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Related Classes of org.apache.pig.impl.logicalLayer.LogicalPlanBuilder

  • org.apache.pig.impl.logicalLayer.parser.QueryParser
  • org.apache.pig.PigServer
  • org.apache.pig.PigServer$Graph
  • org.apache.pig.test.TestLoad
  • org.apache.pig.test.TestLocalPOSplit
  • org.apache.pig.test.TestLogicalPlanBuilder
  • org.apache.pig.test.TestLogToPhyCompiler
  • org.apache.pig.test.TestStore
  • java.io.ByteArrayInputStream
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