Examples with FieldReferenceOffsetManager com.ociweb.pronghorn.pipe.FieldReferenceOffsetManager used on opensource projects

Example 16 with FieldReferenceOffsetManager

use of com.ociweb.pronghorn.pipe.FieldReferenceOffsetManager in project PronghornPipes by oci-pronghorn.

the class TemplateProcessGeneratorLowLevelReader method defineMembers.

@Override
protected void defineMembers() throws IOException {
    final FieldReferenceOffsetManager from = MessageSchema.from(schema);
    workspace1 = new StringBuilder();
    for (int cursor = 0; cursor < from.tokens.length; cursor++) {
        String name = from.fieldNameScript[cursor];
        long id = from.fieldIdScript[cursor];
        int token = from.tokens[cursor];
        int type = TokenBuilder.extractType(token);
        if (TypeMask.TextASCII == type | TypeMask.TextASCIIOptional == type | TypeMask.TextUTF8 == type | TypeMask.TextUTF8Optional == type) {
            preprocessTextfieldsDef(name, id);
        } else if (TypeMask.ByteVector == type | TypeMask.ByteVectorOptional == type) {
            preprocessBytefieldsDef(name, id);
        }
    }
    if (!from.hasSimpleMessagesOnly) {
        bodyTarget.append("private LowLevelStateManager navState;\n");
    }
    appendClass(bodyTarget.append("private "), pipeClass, schema.getClass()).append(pipeVarName).append(";\n");
    // put schema into code
    from.appendConstuctionSource(bodyTarget);
    additionalMembers(bodyTarget);
    bodyTarget.append("\n");
    bodyTarget.append("// GENERATED LOW LEVEL READER \n");
    bodyTarget.append("// # Low level API is the fastest way of reading from a pipe in a business semantic way. \n");
    bodyTarget.append("// # Do not change the order that fields are read, this is fixed when using low level. \n");
    bodyTarget.append("// # Do not remove any field reading, every field must be consumed when using low level. \n");
    bodyTarget.append("\n");
    bodyTarget.append("// Details to keep in mind when you expect the schema to change over time\n");
    bodyTarget.append("// # Low level API is CAN be extensiable in the sense which means ignore unrecognized messages. \n");
    bodyTarget.append("// # Low level API is CAN NOT be extensiable in the sense of dealing with mising or extra/new fields. \n");
    bodyTarget.append("// # Low level API is CAN NOT be extensiable in the sense of dealing with fields encoded with different types. \n");
    from.appendGUID(bodyTarget.append("private static final int[] FROM_GUID = ")).append(";\n");
    bodyTarget.append("private static final long BUILD_TIME = ");
    Appendables.appendValue(bodyTarget, System.currentTimeMillis()).append("L;\n");
// TODO: fix hexDigits it is out of bounds.
}

Example 17 with FieldReferenceOffsetManager

use of com.ociweb.pronghorn.pipe.FieldReferenceOffsetManager in project PronghornPipes by oci-pronghorn.

the class TemplateProcessGeneratorLowLevelReader method bodyBuilder.

// override this method !!
protected void bodyBuilder(MessageSchema schema, int cursor, int fragmentParaCount, CharSequence[] fragmentParaTypes, CharSequence[] fragmentParaArgs, CharSequence[] fragmentParaSuff) {
    // This is example code only to be tossed.
    // The runtime code should call this once,  this comment is code to be generated but NOT here.
    // int[] intDictionary = from.newIntDefaultsDictionary()
    // intp[ prevDictionary = ....
    FieldReferenceOffsetManager from = MessageSchema.from(schema);
    int curCursor = cursor;
    long activePmap = 0;
    for (int paramIdx = 0; paramIdx < fragmentParaCount; paramIdx++) {
        String varName = new StringBuilder().append(fragmentParaArgs[paramIdx]).append(fragmentParaSuff[paramIdx]).toString();
        String varType = new StringBuilder().append(fragmentParaTypes[paramIdx]).toString();
        int token = from.tokens[curCursor];
        // Good stuff goes here.
        // this comment is an example of what should be generated not executed here.
        // activePmap = pmapBuilding( activePmap,  token.  <varName> , initDictionary[curCursor], prev??
        // / varName is the name of the variable that holds the cur value.
        // Which pmap should be called??? switch on varType.
        curCursor += TypeMask.scriptTokenSize[TokenBuilder.extractType(token)];
    }
// now THE PMAP IS BUILT.
// NOW GENERATE WRITE IT CODE
}

Example 18 with FieldReferenceOffsetManager

use of com.ociweb.pronghorn.pipe.FieldReferenceOffsetManager in project PronghornPipes by oci-pronghorn.

the class TemplateProcessGenerator method processSchema.

public void processSchema() throws IOException {
    headerConstruction();
    defineMembers();
    final FieldReferenceOffsetManager from = MessageSchema.from(schema);
    // Build top level entry point
    processCallerPrep();
    for (int cursor = 0; cursor < from.fragScriptSize.length; cursor++) {
        boolean isFragmentStart = 0 != from.fragScriptSize[cursor];
        if (isFragmentStart) {
            processCaller(cursor);
        }
    }
    processCallerPost();
    // Build fragment consumption methods
    for (int cursor = 0; cursor < from.fragScriptSize.length; cursor++) {
        boolean isFragmentStart = 0 != from.fragScriptSize[cursor];
        if (isFragmentStart) {
            processCalleeOpen(cursor);
            boolean isMessageStart = FieldReferenceOffsetManager.isTemplateStart(from, cursor);
            if (isMessageStart) {
                processFragment(1, cursor, from);
            } else {
                processFragment(0, cursor, from);
            }
            processCalleeClose(cursor);
        }
    }
    footerConstruction();
}

Example 19 with FieldReferenceOffsetManager

use of com.ociweb.pronghorn.pipe.FieldReferenceOffsetManager in project PronghornPipes by oci-pronghorn.

the class TemplateProcessGeneratorTest method testGenerateLowLevelWriterCleanCompile.

@Test
public void testGenerateLowLevelWriterCleanCompile() {
    if ("arm".equals(System.getProperty("os.arch"))) {
        assertTrue(true);
    } else {
        try {
            FieldReferenceOffsetManager from = TemplateHandler.loadFrom("/template/smallExample.xml");
            MessageSchema schema = new MessageSchemaDynamic(from);
            String className = "LowLevelWriter";
            StringBuilder target = new StringBuilder();
            TemplateProcessGeneratorLowLevelWriter simple = new TemplateProcessGeneratorLowLevelWriter(schema, target, true, "com.ociweb.pronghorn.pipe.build");
            simple.processSchema();
            // System.out.println(target);
            validateCleanCompile(className, target);
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
            fail();
        } catch (SAXException e) {
            e.printStackTrace();
            fail();
        } catch (IOException e) {
            e.printStackTrace();
            fail();
        }
    }
}