public void testEmptyArrayWrite() throws Exception {
StringWriter sw = new StringWriter();
JsonGenerator gen = new JsonFactory().createGenerator(sw);
JsonStreamContext ctxt = gen.getOutputContext();
assertTrue(ctxt.inRoot());
assertFalse(ctxt.inArray());
assertFalse(ctxt.inObject());
assertEquals(0, ctxt.getEntryCount());
assertEquals(0, ctxt.getCurrentIndex());
gen.writeStartArray();
ctxt = gen.getOutputContext();
assertFalse(ctxt.inRoot());
assertTrue(ctxt.inArray());
assertFalse(ctxt.inObject());
assertEquals(0, ctxt.getEntryCount());
assertEquals(0, ctxt.getCurrentIndex());
gen.writeEndArray();
ctxt = gen.getOutputContext();
assertTrue("Should be in root, was " + ctxt.getTypeDesc(), ctxt.inRoot());
assertFalse(ctxt.inArray());
assertFalse(ctxt.inObject());
assertEquals(1, ctxt.getEntryCount());
// Index won't yet move
assertEquals(0, ctxt.getCurrentIndex());
gen.close();
String docStr = sw.toString();
JsonParser jp = createParserUsingReader(docStr);
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
jp.close();
// Ok, then array with nested empty array
sw = new StringWriter();
gen = new JsonFactory().createGenerator(sw);
gen.writeStartArray();
gen.writeStartArray();
gen.writeEndArray();
gen.writeEndArray();
gen.close();
docStr = sw.toString();
jp = createParserUsingReader(docStr);
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
assertEquals(null, jp.nextToken());
jp.close();
}
public static String dumpConfigurationSectionAsFlatJson(String section) {
Class en = CONFIGURATION_SECTIONS.get(section);
try {
JsonFactory jfactory = new JsonFactory();
StringWriter sw = new StringWriter();
String enumDescription = "";
JsonGenerator gen = jfactory.createJsonGenerator(sw);
gen.writeStartArray();
EnumSet values = EnumSet.allOf(en);
for (Object v : values) {
String key = (String) (en.getMethod("getKey")).invoke(v);
boolean isVisible = (Boolean) (en.getMethod("isVisible")).invoke(v);
String valueAsString;
if (isVisible) valueAsString = (String) (en.getMethod("getValueAsString")).invoke(v);
else valueAsString = "--HIDDEN--";
boolean isEditable = (Boolean) (en.getMethod("isEditable")).invoke(v);
boolean isOverridden = (Boolean) (en.getMethod("isOverridden")).invoke(v);
String valueDescription = (String) (en.getMethod("getValueDescription")).invoke(v);
Class type = (Class) en.getMethod("getType").invoke(v);
gen.writeStartObject(); // {
gen.writeStringField("key", key);
gen.writeStringField("value", valueAsString);
gen.writeStringField("description", valueDescription); // ,"description":"description"
gen.writeStringField("type", type.getSimpleName()); // ,"type":"type"
gen.writeBooleanField("editable", isEditable);
gen.writeBooleanField("overridden", isOverridden);
gen.writeEndObject(); // }
}
if (gen.getOutputContext().inArray()) gen.writeEndArray(); // ]
gen.close();
return sw.toString();
} catch (Exception e) {
Logger.error(
"Cannot generate a json for "
+ en.getSimpleName()
+ " Enum. Is it an Enum that implements the IProperties interface?",
e);
}
return "{}";
} // dumpConfigurationSectionAsJson(String)()
/**
* *
*
* <p>Returns a json representation of the Enumerator The Enumerator must implements the
* IProperties interface
*
* @param en the Enumerator to serialize. It must implements the IProperties interface
* @return the representation of the Enumerator
*/
@SuppressWarnings("unchecked")
public static String dumpConfigurationAsJson(String section) {
Class en = CONFIGURATION_SECTIONS.get(section);
try {
JsonFactory jfactory = new JsonFactory();
StringWriter sw = new StringWriter();
String enumDescription = "";
JsonGenerator gen = jfactory.createJsonGenerator(sw);
Method getEnumDescription = en.getMethod("getEnumDescription");
if (getEnumDescription != null
&& getEnumDescription.getReturnType() == String.class
&& Modifier.isStatic(getEnumDescription.getModifiers()))
enumDescription = (String) getEnumDescription.invoke(null);
gen.writeStartObject(); // {
gen.writeStringField("section", section); // "configuration":"EnumName"
gen.writeStringField("description", enumDescription); // ,"description": "EnumDescription"
gen.writeFieldName("sub sections"); // ,"sections":
gen.writeStartObject(); // {
String lastSection = "";
EnumSet values = EnumSet.allOf(en);
for (Object v : values) {
String key = (String) (en.getMethod("getKey")).invoke(v);
boolean isVisible = (Boolean) (en.getMethod("isVisible")).invoke(v);
String valueAsString;
if (isVisible) valueAsString = (String) (en.getMethod("getValueAsString")).invoke(v);
else valueAsString = "--HIDDEN--";
boolean isEditable = (Boolean) (en.getMethod("isEditable")).invoke(v);
String valueDescription = (String) (en.getMethod("getValueDescription")).invoke(v);
Class type = (Class) en.getMethod("getType").invoke(v);
String subsection = key.substring(0, key.indexOf('.'));
if (!lastSection.equals(subsection)) {
if (gen.getOutputContext().inArray()) gen.writeEndArray();
gen.writeFieldName(subsection); // "sectionName":
gen.writeStartArray(); // [
lastSection = subsection;
}
boolean isOverridden = (Boolean) (en.getMethod("isOverridden")).invoke(v);
gen.writeStartObject(); // {
gen.writeStringField(key, valueAsString); // "key": "value"
gen.writeStringField("description", valueDescription); // ,"description":"description"
gen.writeStringField("type", type.getSimpleName()); // ,"type":"type"
gen.writeBooleanField("editable", isEditable); // ,"editable":"true|false"
gen.writeBooleanField("visible", isVisible); // ,"visible":"true|false"
gen.writeBooleanField("overridden", isOverridden); // ,"overridden":"true|false"
gen.writeEndObject(); // }
}
if (gen.getOutputContext().inArray()) gen.writeEndArray(); // ]
gen.writeEndObject(); // }
gen.writeEndObject(); // }
gen.close();
return sw.toString();
} catch (Exception e) {
Logger.error(
"Cannot generate a json for "
+ en.getSimpleName()
+ " Enum. Is it an Enum that implements the IProperties interface?",
e);
}
return "{}";
} // dumpConfigurationAsJson(en)
