Examples of org.apache.wink.json4j.JSONStringer

org.apache.wink.json4j.JSONStringer
This class implements a JSONSringer, a basic convenience subclass of JSONWriter to allow for generating JSON strings quickly. This class exists for API compatibility to other popular JSON parsers.


    /**
     * Test the contructor.
     */
    public void test_new() {
        JSONStringer jStringer = new JSONStringer();
    }

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     * Test the String empty object contructor.
     */
    public void test_WriteEmptyObject() {
        Exception ex = null;
        try{
            JSONStringer jStringer = new JSONStringer();
            jStringer.object();
            jStringer.endObject();
            String str = jStringer.toString();
            // Verify it parses.
            JSONObject test = new JSONObject(str);
            assertTrue(str.equals("{}"));
        }catch(Exception ex1){
            ex = ex1;

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     * Test the String empty object contructor.
     */
    public void test_WriteEmptyObjectClose() {
        Exception ex = null;
        try{
            JSONStringer jStringer = new JSONStringer();
            jStringer.object();
            jStringer.close();
            String str = jStringer.toString();
            System.out.println("STRING: " + str);
            // Verify it parses.
            JSONObject test = new JSONObject(str);
            assertTrue(str.equals("{}"));
        }catch(Exception ex1){

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     * Test the String empty object contructor.
     */
    public void test_WriteEmptyArray() {
        Exception ex = null;
        try{
            JSONStringer jStringer = new JSONStringer();
            jStringer.array();
            jStringer.endArray();
            String str = jStringer.toString();
            // Verify it parses.
            JSONArray test = new JSONArray(str);
            assertTrue(str.equals("[]"));
        }catch(Exception ex1){
            ex = ex1;

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     * Test a simple object with multiple keys of varying types
     */
    public void test_WriteObjectComplex() {
        Exception ex = null;
        try{
            JSONStringer jStringer = new JSONStringer();
            jStringer.object();
            jStringer.key("string");
            jStringer.value("String1");
            jStringer.key("bool");
            jStringer.value(false);
            jStringer.key("number");
            jStringer.value(1);


            // Place an object
            jStringer.key("object");
            jStringer.object();
            jStringer.key("string");
            jStringer.value("String2");
            jStringer.endObject();


            // Place an array
            jStringer.key("array");
            jStringer.array();
            jStringer.value(1);
            jStringer.value((double)2);
            jStringer.value((short)3);
            jStringer.endArray();


            //Close top object.
            jStringer.endObject();


            String str = jStringer.toString();


            // Verify it parses.
            JSONObject test = new JSONObject(str);
            assertTrue(str.equals("{\"string\":\"String1\",\"bool\":false,\"number\":1,\"object\":{\"string\":\"String2\"},\"array\":[1,2.0,3]}"));
        }catch(Exception ex1){

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     * Test a simple object with multiple keys of varying types
     */
    public void test_WriteArrayComplex() {
        Exception ex = null;
        try{
            JSONStringer jStringer = new JSONStringer();
            jStringer.array();
            jStringer.value("String1");
            jStringer.value(false);
            jStringer.value(1);


            // Place an object
            jStringer.object();
            jStringer.key("string");
            jStringer.value("String2");
            jStringer.endObject();


            // Place an array
            jStringer.array();
            jStringer.value(1);
            jStringer.value((double)2);
            jStringer.value((short)3);
            jStringer.endArray();


            //Close top array.
            jStringer.endArray();


            String str = jStringer.toString();


            // Verify it parses.
            JSONArray test = new JSONArray(str);
            assertTrue(str.equals("[\"String1\",false,1,{\"string\":\"String2\"},[1,2.0,3]]"));
        }catch(Exception ex1){

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     * Test that trying operations after the stringer was returned that they fail.
     */
    public void test_OptsAfterCloseFail() {
        Exception ex = null;
        try{
            JSONStringer jStringer = new JSONStringer();
            jStringer.array();
            jStringer.toString();


            // This should die.
            jStringer.endArray();
        }catch(Exception ex1){
            ex = ex1;
        }
        assertTrue(ex instanceof IllegalStateException);
    }

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Related Classes of org.apache.wink.json4j.JSONStringer

org.apache.wink.json4j.tests.JSONStringerTest

java.io.StringWriter

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