Package org.apache.pig.impl.util

Examples of org.apache.pig.impl.util.JavaCompilerHelper

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     * @param String of generated code
     * @param name of class
     */
    //TODO in the future, we can use ASM to generate the bytecode directly.
    private static void compileCodeString(String className, String generatedCodeString, File codeDir) {
        JavaCompilerHelper compiler = new JavaCompilerHelper();
        String tempDir = codeDir.getAbsolutePath();
        compiler.addToClassPath(tempDir);
        LOG.debug("Compiling SchemaTuple code with classpath: " + compiler.getClassPath());
        compiler.compile(tempDir, new JavaCompilerHelper.JavaSourceFromString(className, generatedCodeString));
        LOG.info("Successfully compiled class: " + className);
    }
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        String udf2Src = new String("package com.xxx.udf2;\n" +
                "import org.apache.pig.builtin.PigStorage;\n" +
                "public class TestUDF2 extends PigStorage { }\n");

        // compile
        JavaCompilerHelper javaCompilerHelper = new JavaCompilerHelper();
        javaCompilerHelper.compile(tmpDir.getAbsolutePath(),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf1.TestUDF1", udf1Src),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf2.TestUDF2", udf2Src));

        // generate jar file
        String jarName = "TestUDFJar.jar";
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     * @param String of generated code
     * @param name of class
     */
    //TODO in the future, we can use ASM to generate the bytecode directly.
    private static void compileCodeString(String className, String generatedCodeString, File codeDir) {
        JavaCompilerHelper compiler = new JavaCompilerHelper();
        String tempDir = codeDir.getAbsolutePath();
        compiler.addToClassPath(tempDir);
        LOG.debug("Compiling SchemaTuple code with classpath: " + compiler.getClassPath());
        compiler.compile(tempDir, new JavaCompilerHelper.JavaSourceFromString(className, generatedCodeString));
        LOG.info("Successfully compiled class: " + className);
    }
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        String udf2Src = new String("package com.xxx.udf2;\n"+
                "import org.apache.pig.builtin.PigStorage;\n" +
                "public class TestUDF2 extends PigStorage { }\n");
       
        // compile
        JavaCompilerHelper javaCompilerHelper = new JavaCompilerHelper();
        javaCompilerHelper.compile(tmpDir.getAbsolutePath(),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf1.TestUDF1", udf1Src),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf2.TestUDF2", udf2Src));
               
        // generate jar file
        String jarName = "TestUDFJar.jar";
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                "public Integer exec(Tuple input) throws IOException {\n" +
                "return 1;}\n" +
                "}");

        // compile
        JavaCompilerHelper javaCompilerHelper = new JavaCompilerHelper();
        javaCompilerHelper.compile(tmpDir.getAbsolutePath(),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf.TestUDF", udfSrc));
       
        String jarName = "TestUDFJar.jar";
        String jarFile = tmpDir.getAbsolutePath() + FILE_SEPARATOR + jarName;
        int status = Util.executeJavaCommand("jar -cf " + jarFile +
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        String udf2Src = new String("package com.xxx.udf2;\n" +
                "import org.apache.pig.builtin.PigStorage;\n" +
                "public class TestUDF2 extends PigStorage { }\n");

        // compile
        JavaCompilerHelper javaCompilerHelper = new JavaCompilerHelper();
        javaCompilerHelper.compile(tmpDir.getAbsolutePath(),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf1.TestUDF1", udf1Src),
                new JavaCompilerHelper.JavaSourceFromString("com.xxx.udf2.TestUDF2", udf2Src));

        // generate jar file
        String jarName = "TestUDFJar.jar";
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Related Classes of org.apache.pig.impl.util.JavaCompilerHelper

  • org.apache.pig.data.SchemaTupleClassGenerator
  • org.apache.pig.test.TestGrunt
  • org.apache.pig.test.TestPigContext
  • javax.tools.JavaFileManager
  • javax.tools.JavaCompiler
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