Example usage for io.vertx.core.parsetools JsonParser newParser

Introduction

In this page you can find the example usage for io.vertx.core.parsetools JsonParser newParser.

Prototype

static JsonParser newParser() 

Source Link

Document

Create a new JsonParser instance.

Usage

From source file:examples.ParseToolsExamples.java

License:Open Source License

public void jsonParserExample1() {

    JsonParser parser = JsonParser.newParser();

    // Set handlers for various events
    parser.handler(event -> {/*w  w  w  . j a v a2 s  . c  om*/
        switch (event.type()) {
        case START_OBJECT:
            // Start an objet
            break;
        case END_OBJECT:
            // End an objet
            break;
        case START_ARRAY:
            // Start an array
            break;
        case END_ARRAY:
            // End an array
            break;
        case VALUE:
            // Handle a value
            String field = event.fieldName();
            if (field != null) {
                // In an object
            } else {
                // In an array or top level
                if (event.isString()) {

                } else {
                    // ...
                }
            }
            break;
        }
    });
}

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From source file:examples.ParseToolsExamples.java

License:Open Source License

public void jsonParserExample2() {

    JsonParser parser = JsonParser.newParser();

    // start array event
    // start object event
    // "firstName":"Bob" event
    parser.handle(Buffer.buffer("[{\"firstName\":\"Bob\","));

    // "lastName":"Morane" event
    // end object event
    parser.handle(Buffer.buffer("\"lastName\":\"Morane\"},"));

    // start object event
    // "firstName":"Luke" event
    // "lastName":"Lucky" event
    // end object event
    parser.handle(Buffer.buffer("{\"firstName\":\"Luke\",\"lastName\":\"Lucky\"}"));

    // end array event
    parser.handle(Buffer.buffer("]"));

    // Always call end
    parser.end();//from  w  w  w .j a  va2 s . c o m
}

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From source file:examples.ParseToolsExamples.java

License:Open Source License

public void jsonParserExample3() {

    JsonParser parser = JsonParser.newParser();

    parser.objectValueMode();/*ww w .j  a v a2 s  . c o m*/

    parser.handler(event -> {
        switch (event.type()) {
        case START_ARRAY:
            // Start the array
            break;
        case END_ARRAY:
            // End the array
            break;
        case VALUE:
            // Handle each object
            break;
        }
    });

    parser.handle(Buffer.buffer("[{\"firstName\":\"Bob\"},\"lastName\":\"Morane\"),...]"));
    parser.end();
}

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From source file:examples.ParseToolsExamples.java

License:Open Source License

public void jsonParserExample4() {

    JsonParser parser = JsonParser.newParser();

    parser.handler(event -> {//from   ww  w. ja  v  a  2 s .c  om
        // Start the object

        switch (event.type()) {
        case START_OBJECT:
            // Set object value mode to handle each entry, from now on the parser won't emit start object events
            parser.objectValueMode();
            break;
        case VALUE:
            // Handle each object
            // Get the field in which this object was parsed
            String id = event.fieldName();
            System.out.println("User with id " + id + " : " + event.value());
            break;
        case END_OBJECT:
            // Set the object event mode so the parser emits start/end object events again
            parser.objectEventMode();
            break;
        }
    });

    parser.handle(Buffer.buffer("{\"39877483847\":{\"firstName\":\"Bob\"},\"lastName\":\"Morane\"),...}"));
    parser.end();
}

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From source file:examples.ParseToolsExamples.java

License:Open Source License

public void jsonParserExample5() {

    JsonParser parser = JsonParser.newParser();

    parser.handler(event -> {// ww  w . j  a v a  2 s . c  o  m
        // Start the object

        switch (event.type()) {
        case START_OBJECT:
            // Set array value mode to handle each entry, from now on the parser won't emit start array events
            parser.arrayValueMode();
            break;
        case VALUE:
            // Handle each array
            // Get the field in which this object was parsed
            System.out.println("Value : " + event.value());
            break;
        case END_OBJECT:
            // Set the array event mode so the parser emits start/end object events again
            parser.arrayEventMode();
            break;
        }
    });

    parser.handle(Buffer.buffer("[0,1,2,3,4,...]"));
    parser.end();
}

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From source file:examples.ParseToolsExamples.java

License:Open Source License

public void jsonParserExample7() {

    JsonParser parser = JsonParser.newParser();

    parser.exceptionHandler(err -> {
        // Catch any parsing or decoding error
    });
}

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