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Java PigStorage类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.apache.pig.builtin.PigStorage类的典型用法代码示例。如果您正苦于以下问题：Java PigStorage类的具体用法？Java PigStorage怎么用？Java PigStorage使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



PigStorage类属于org.apache.pig.builtin包，在下文中一共展示了PigStorage类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: attachStorePlan

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
public static void attachStorePlan(String scope, LogicalPlan lp, String fileName, String func, 
        Operator input, String alias, PigContext pigContext) throws FrontendException {
    func = func == null ? pigContext.getProperties().getProperty(PigConfiguration.PIG_DEFAULT_STORE_FUNC, PigStorage.class.getName()) : func;

    FuncSpec funcSpec = new FuncSpec( func );
    StoreFuncInterface stoFunc = (StoreFuncInterface)PigContext.instantiateFuncFromSpec( funcSpec );
    
    fileName = removeQuotes( fileName );
    FileSpec fileSpec = new FileSpec( fileName, funcSpec );
    String sig = alias + "_" + LogicalPlanBuilder.newOperatorKey(scope);
    stoFunc.setStoreFuncUDFContextSignature(sig);
    LOStore store = new LOStore(lp, fileSpec, stoFunc, sig);
    store.setAlias(alias);

    try {
        stoFunc.relToAbsPathForStoreLocation( fileName, getCurrentDir( pigContext ) );
    } catch (IOException ioe) {
        FrontendException e = new FrontendException(  ioe.getMessage(), ioe );
        throw e;
    }

    lp.add( store );
    lp.connect( input, store );
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:25，代码来源:QueryParserUtils.java


示例2: testFinishInReduceMR

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testFinishInReduceMR() throws Exception {
    String inputFileName = setUp(ExecType.MAPREDUCE);
    // this file will be created on the cluster if finish() is called
    String expectedFileName = "testFinishInReduceMR-finish.txt";
    pigServer.registerQuery("define MYUDF " + MyEvalFunction.class.getName() + "('MAPREDUCE','"
            + expectedFileName + "');");
    pigServer.registerQuery("a = load '" + inputFileName + "' using "
            + PigStorage.class.getName() + "(':');");
    pigServer.registerQuery("a1 = group a by $1;");
    pigServer.registerQuery("b = foreach a1 generate MYUDF" + "(*);");
    Iterator<Tuple> iter = pigServer.openIterator("b");
    while (iter.hasNext()) {
        iter.next();
    }

    checkAndCleanup(ExecType.MAPREDUCE, expectedFileName, inputFileName);
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:19，代码来源:TestFinish.java


示例3: testFunctionInsideFunction

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testFunctionInsideFunction() throws Exception{
    
    File f1 = createFile(new String[]{"a:1","b:1","a:1"});

    pigServer.registerQuery("a = load '"
            + Util.generateURI(Util.encodeEscape(f1.toString()), pigServer.getPigContext())
            + "' using " + PigStorage.class.getName() + "(':');");
    pigServer.registerQuery("b = foreach a generate 1-1/1;");
    Iterator<Tuple> iter  = pigServer.openIterator("b");
    
    for (int i=0 ;i<3; i++){
        Assert.assertEquals(DataType.toDouble(iter.next().get(0)), 0.0);
    }
    
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:17，代码来源:TestEvalPipelineLocal.java


示例4: testFinishInMapMR

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testFinishInMapMR() throws Exception {
    String inputFileName = setUp(cluster.getExecType());
    // this file will be created on the cluster if finish() is called
    String expectedFileName = "testFinishInMapMR-finish.txt";
    pigServer.registerQuery("define MYUDF " + MyEvalFunction.class.getName() + "('MAPREDUCE','"
            + expectedFileName + "');");
    pigServer.registerQuery("a = load '" + Util.encodeEscape(inputFileName) + "' using "
            + PigStorage.class.getName() + "(':');");
    pigServer.registerQuery("b = foreach a generate MYUDF" + "(*);");
    Iterator<Tuple> iter = pigServer.openIterator("b");
    while (iter.hasNext()) {
        iter.next();
    }

    checkAndCleanup(cluster.getExecType(), expectedFileName, inputFileName);

}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:19，代码来源:TestFinish.java


示例5: testJoin

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testJoin() throws Exception{
            
    File f1 = createFile(new String[]{"a:1","b:1","a:1"});
    File f2 = createFile(new String[]{"b","b","a"});
    
    pigServer.registerQuery("a = load '"
            + Util.generateURI(f1.toString(), pigServer.getPigContext())
            + "' using " + PigStorage.class.getName() + "(':');");
    pigServer.registerQuery("b = load '"
            + Util.generateURI(f2.toString(), pigServer.getPigContext())
            + "';");
    pigServer.registerQuery("c = cogroup a by $0, b by $0;");        
    pigServer.registerQuery("d = foreach c generate flatten($1),flatten($2);");
    
    Iterator<Tuple> iter = pigServer.openIterator("d");
    int count = 0;
    while(iter.hasNext()){
        Tuple t = iter.next();
        Assert.assertTrue(t.get(0).toString().equals(t.get(2).toString()));
        count++;
    }
    Assert.assertEquals(count, 4);
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:25，代码来源:TestEvalPipelineLocal.java


示例6: testFunctionInsideFunction

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testFunctionInsideFunction() throws Exception{
    
    File f1 = createFile(new String[]{"a:1","b:1","a:1"});

    pigServer.registerQuery("a = load '"
            + Util.generateURI(f1.toString(), pigServer.getPigContext())
            + "' using " + PigStorage.class.getName() + "(':');");
    pigServer.registerQuery("b = foreach a generate 1-1/1;");
    Iterator<Tuple> iter  = pigServer.openIterator("b");
    
    for (int i=0 ;i<3; i++){
        Assert.assertEquals(DataType.toDouble(iter.next().get(0)), 0.0);
    }
    
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:17，代码来源:TestEvalPipelineLocal.java


示例7: testLimitStoreSchema1

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test //end to end test
public void testLimitStoreSchema1() throws Exception{
    Util.createLocalInputFile("student", new String[]{"joe smith:18:3.5","amy brown:25:2.5","jim fox:20:4.0","leo fu:55:3.0"});
    
    pigServer.registerQuery("a = load 'student' using " + PigStorage.class.getName() + "(':') as (name, age, gpa);");
    pigServer.registerQuery("d = distinct a;");
    pigServer.registerQuery("lim = limit d 1;");
    String outFile = "limitSchemaOut";
    Util.deleteDirectory(new File(outFile));
    pigServer.store("lim", outFile,  "PigStorage('\\t', '-schema')");
    pigServer.dumpSchema("lim");
    
    pigServer.registerQuery("b = LOAD '" + outFile + "' using PigStorage('\\t', '-schema');");
    Schema genSchema = pigServer.dumpSchema("b");
    System.err.println(genSchema);
    Assert.assertNotNull(genSchema);
    
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:19，代码来源:TestLimitSchemaStore.java


示例8: testQueryParser

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testQueryParser() throws Exception{
	File f1 = File.createTempFile("tmp", "");
    PrintWriter pw = new PrintWriter(f1, "UTF-8");
    pw.println("中文");
    pw.close();

    pigServer.registerQuery("a = load '"
            + Util.encodeEscape(Util.generateURI(f1.toString(), pigServer.getPigContext()))
            + "' using " + PigStorage.class.getName() + "();");
    pigServer.registerQuery("b =  filter a by $0 == '中文';");
    Iterator<Tuple> iter  = pigServer.openIterator("a");

    assertEquals(DataType.toString(iter.next().get(0)), "中文");

    f1.delete();
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:18，代码来源:TestUTF8.java


示例9: testJoin

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testJoin() throws Exception{
    File f1 = Util.createFile(new String[]{"a:1","b:1","a:1"});
    File f2 = Util.createFile(new String[]{"b","b","a"});
    
    pigServer.registerQuery("a = load '" 
            + Util.generateURI(f1.toString(), pigContext) + "' using " 
            + PigStorage.class.getName() + "(':');");
    pigServer.registerQuery("b = load '" 
            + Util.generateURI(f2.toString(), pigContext) + "';");
    pigServer.registerQuery("c = cogroup a by $0, b by $0;");        
    pigServer.registerQuery("d = foreach c generate flatten($1),flatten($2);");
    
    Iterator<Tuple> iter = pigServer.openIterator("d");
    int count = 0;
    while(iter.hasNext()){
        Tuple t = iter.next();
        Assert.assertTrue(t.get(0).toString().equals(t.get(2).toString()));
        count++;
    }
    Assert.assertEquals(count, 4);
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:23，代码来源:TestEvalPipeline.java


示例10: testGetInputSizeFromFs

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testGetInputSizeFromFs() throws Exception {
    long size = 2L * 1024 * 1024 * 1024;
    Assert.assertEquals(size, InputSizeReducerEstimator.getTotalInputFileSize(
            CONF, Lists.newArrayList(createPOLoadWithSize(size, new PigStorage())),
            new org.apache.hadoop.mapreduce.Job(CONF)));

    Assert.assertEquals(size, InputSizeReducerEstimator.getTotalInputFileSize(
            CONF,
            Lists.newArrayList(createPOLoadWithSize(size, new PigStorageWithStatistics())),
            new org.apache.hadoop.mapreduce.Job(CONF)));

    Assert.assertEquals(size * 2, InputSizeReducerEstimator.getTotalInputFileSize(
            CONF,
            Lists.newArrayList(
                    createPOLoadWithSize(size, new PigStorage()),
                    createPOLoadWithSize(size, new PigStorageWithStatistics())),
            new org.apache.hadoop.mapreduce.Job(CONF)));
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:20，代码来源:TestInputSizeReducerEstimator.java


示例11: attachStorePlan

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
public static void attachStorePlan(String scope, LogicalPlan lp, String fileName, String func,
        Operator input, String alias, PigContext pigContext) throws FrontendException {
    func = func == null ? pigContext.getProperties().getProperty(PigConfiguration.PIG_DEFAULT_STORE_FUNC, PigStorage.class.getName()) : func;

    FuncSpec funcSpec = new FuncSpec( func );
    StoreFuncInterface stoFunc = (StoreFuncInterface)PigContext.instantiateFuncFromSpec( funcSpec );

    fileName = removeQuotes( fileName );
    FileSpec fileSpec = new FileSpec( fileName, funcSpec );
    String sig = alias + "_" + LogicalPlanBuilder.newOperatorKey(scope);
    stoFunc.setStoreFuncUDFContextSignature(sig);
    LOStore store = new LOStore(lp, fileSpec, stoFunc, sig);
    store.setAlias(alias);

    try {
        stoFunc.relToAbsPathForStoreLocation( fileName, getCurrentDir( pigContext ) );
    } catch (IOException ioe) {
        FrontendException e = new FrontendException(  ioe.getMessage(), ioe );
        throw e;
    }

    lp.add( store );
    lp.connect( input, store );
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:25，代码来源:QueryParserUtils.java


示例12: buildStoreOp

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
String buildStoreOp(SourceLocation loc, String alias, String inputAlias, String filename, FuncSpec funcSpec)
throws ParserValidationException {
    try {
        // Load StoreFunc class from default properties if funcSpec is null. Fallback on PigStorage if StoreFunc is not specified in properties.
        funcSpec = funcSpec == null ? new FuncSpec(pigContext.getProperties().getProperty(PigConfiguration.PIG_DEFAULT_STORE_FUNC, PigStorage.class.getName())) : funcSpec;
        StoreFuncInterface stoFunc = (StoreFuncInterface)PigContext.instantiateFuncFromSpec(funcSpec);
        String fileNameKey = inputAlias + "_" + (storeIndex++) ;

        String signature = inputAlias + "_" + newOperatorKey();
        stoFunc.setStoreFuncUDFContextSignature(signature);

        String absolutePath = fileNameMap.get(fileNameKey);
        if (absolutePath == null) {
            absolutePath = stoFunc.relToAbsPathForStoreLocation(
                    filename,
                    QueryParserUtils.getCurrentDir(pigContext));
            if (absolutePath!=null) {
                QueryParserUtils.setHdfsServers(absolutePath, pigContext);
            }
            fileNameMap.put(fileNameKey, absolutePath);
        }
        FileSpec fileSpec = new FileSpec(absolutePath, funcSpec);

        LOStore op = new LOStore(plan, fileSpec, stoFunc, signature);
        return buildOp(loc, op, alias, inputAlias, null);
    } catch(Exception ex) {
        throw new ParserValidationException(intStream, loc, ex);
    }
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:30，代码来源:LogicalPlanBuilder.java


示例13: testSpecCtorClassName

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testSpecCtorClassName() {
    String pigStorage = PigStorage.class.getName();
    FuncSpec fs = new FuncSpec(pigStorage);
    Object o = PigContext.instantiateFuncFromSpec(fs);
    assertTrue(o instanceof PigStorage);
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:8，代码来源:TestFuncSpec.java


示例14: testNumericEq

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testNumericEq() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for(int i = 0; i < LOOP_COUNT; i++) {
        if(i % 5 == 0) {
            ps.println(i + ":" + (double)i);
        } else {
            ps.println(i + ":" + (i-1));
        }
    }
    ps.close();
    pig.registerQuery("A=load '"
            + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using "+PigStorage.class.getName() +"(':');");
    String query = "A = filter A by ($0 == $1 and $0 <= $1);";
    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while(it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertEquals(first, second);

        String sfirst = t.get(0).toString();
        String ssecond = t.get(1).toString();
        assertFalse(sfirst.equals(ssecond));
    }
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:32，代码来源:TestFilterOpNumeric.java


示例15: testNumericNeq

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testNumericNeq() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for(int i = 0; i < LOOP_COUNT; i++) {
        if(i % 5 == 0) {
            ps.println("1:1");
        } else {
            ps.println("2:3");
        }
    }
    ps.close();
    pig.registerQuery("A=load '"
            + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using " + PigStorage.class.getName() + "(':');");
    String query = "A = filter A by $0 != $1;";
    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while(it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertFalse(first.equals(second));
    }
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:28，代码来源:TestFilterOpNumeric.java


示例16: testNumericGt

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testNumericGt() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for(int i = 0; i < LOOP_COUNT; i++) {
        if(i % 5 == 0) {
            ps.println(i + ":" + (double)i);
        } else {
            ps.println(i+1 + ":" + (double)(i));
        }
    }
    ps.close();
    pig.registerQuery("A=load '"
            + Util.generateURI(tmpFile.toString(), pig.getPigContext()) + "' using "
            + PigStorage.class.getName() + "(':') as (f1: double, f2:double);");
    String query = "A = filter A by ($0 > $1 and $0 >= $1);";

    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while(it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertTrue(first.compareTo(second) > 0);
    }
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:29，代码来源:TestFilterOpNumeric.java


示例17: testNumericLt

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testNumericLt() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for(int i = 0; i < LOOP_COUNT; i++) {
        if(i % 5 == 0) {
            ps.println(i + ":" + (double)i);
        } else {
            ps.println(i + ":" + (double)(i+1));
        }
    }
    ps.close();
    pig.registerQuery("A=load '"
            + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using " + PigStorage.class.getName() + "(':') as (a: double, b:double);");
    String query = "A = filter A by ($0 <= $1 and $0 < $1);";

    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while(it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertTrue(first.compareTo(second) < 0);
    }

}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:30，代码来源:TestFilterOpNumeric.java


示例18: testNumericGte

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testNumericGte() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for(int i = 0; i < LOOP_COUNT; i++) {
        if(i % 5 == 0) {
            ps.println(i + ":" + (double)i);
        } else if(i % 3 == 0){
            ps.println(i-1 + ":" + (double)(i));
        } else {
            ps.println(i+1 + ":" + (double)(i));
        }
    }
    ps.close();
    pig.registerQuery("A=load '"
            + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using " + PigStorage.class.getName() + "(':');");
    String query = "A = filter A by ($0 > $1 or $0 >= $1);";

    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while(it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertTrue(first.compareTo(second) >= 0);
    }
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:31，代码来源:TestFilterOpNumeric.java


示例19: testDivide

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testDivide() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    for (int i = 0; i < nullFlags.length; i++) {
        System.err.println("Testing with nulls: " + nullFlags[i]);
        PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
        generateInput(ps, nullFlags[i]);
        String query = "A = foreach (load '"
                + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext()))
                + "' using " + PigStorage.class.getName()
                + "(':')) generate $0, $0 / $1, $1 ;";
        log.info(query);
        pig.registerQuery(query);
        Iterator<Tuple> it = pig.openIterator("A");
        tmpFile.delete();
        while(it.hasNext()) {
            Tuple t = it.next();
            Double first = (t.get(0) == null ? null :DataType.toDouble(t.get(0)));
            Double second = (t.get(1) == null ? null :DataType.toDouble(t.get(1)));
            Double third = (t.get(2) == null ? null :DataType.toDouble(t.get(2)));
            if(first != null && third != null) {
                assertEquals(Double.valueOf(1.0), second);
            } else {
                assertNull(second);
            }
        }
    }
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:29，代码来源:TestInfixArithmetic.java


示例20: testCacheQuery

import org.apache.pig.builtin.PigStorage; //导入依赖的package包/类
@Test
public void testCacheQuery() throws Exception {
    String query = "x = load 'a' using " + PigStorage.class.getName() + " as (foo, bar, baz);\n" +
            " cache x; \n" +
            " z = x;" +
            "y = filter z by $0 == 1;\n" +
            "store y into '/dev/null/y';\n" +
            "store x into '/dev/null/x';";
    buildPlan(query);
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:11，代码来源:TestLogicalPlanBuilder.java



注：本文中的org.apache.pig.builtin.PigStorage类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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