@Override
public PropertyName findNameForDeserialization(Annotated a) {
String name;
// @JsonSetter has precedence over @JsonProperty, being more specific
// @JsonDeserialize implies that there is a property, but no name
JsonSetter js = _findAnnotation(a, JsonSetter.class);
if (js != null) {
name = js.value();
} else {
JsonProperty pann = _findAnnotation(a, JsonProperty.class);
if (pann != null) {
name = pann.value();
/* 22-Apr-2014, tatu: Should figure out a better way to do this, but
* it's actually bit tricky to do it more efficiently (meta-annotations
* add more lookups; AnnotationMap costs etc)
*/
} else if (_hasAnnotation(a, JsonDeserialize.class)
|| _hasAnnotation(a, JsonView.class)
|| _hasAnnotation(a, JsonUnwrapped.class) // [#442]
|| _hasAnnotation(a, JsonBackReference.class)
|| _hasAnnotation(a, JsonManagedReference.class)) {
name = "";
} else {
return null;
}
}
return PropertyName.construct(name);
}
@Override
public Boolean hasRequiredMarker(AnnotatedMember m) {
JsonProperty ann = _findAnnotation(m, JsonProperty.class);
if (ann != null) {
return ann.required();
}
return null;
}
@Override
public String findPropertyDefaultValue(Annotated ann) {
JsonProperty prop = _findAnnotation(ann, JsonProperty.class);
if (prop == null) {
return null;
}
String str = prop.defaultValue();
// Since annotations do not allow nulls, need to assume empty means "none"
return str.isEmpty() ? null : str;
}
@Override
public Integer findPropertyIndex(Annotated ann) {
JsonProperty prop = _findAnnotation(ann, JsonProperty.class);
if (prop != null) {
int ix = prop.index();
if (ix != JsonProperty.INDEX_UNKNOWN) {
return Integer.valueOf(ix);
}
}
return null;
}
public void testDumpConfiguratioWithoutDefaults() throws IOException {
// check for case when default resources are not loaded
Configuration config = new Configuration(false);
StringWriter outWriter = new StringWriter();
Configuration.dumpConfiguration(config, outWriter);
String jsonStr = outWriter.toString();
ObjectMapper mapper = new ObjectMapper();
JsonConfiguration jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
// ensure that no properties are loaded.
assertEquals(0, jconf.getProperties().length);
// add 2 keys
out = new BufferedWriter(new FileWriter(CONFIG));
startConfig();
appendProperty("test.key1", "value1");
appendProperty("test.key2", "value2", true);
endConfig();
Path fileResource = new Path(CONFIG);
config.addResource(fileResource);
out.close();
outWriter = new StringWriter();
Configuration.dumpConfiguration(config, outWriter);
jsonStr = outWriter.toString();
mapper = new ObjectMapper();
jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
HashMap<String, JsonProperty> confDump = new HashMap<String, JsonProperty>();
for (JsonProperty prop : jconf.getProperties()) {
confDump.put(prop.getKey(), prop);
}
// ensure only 2 keys are loaded
assertEquals(2, jconf.getProperties().length);
// ensure the values are consistent
assertEquals(confDump.get("test.key1").getValue(), "value1");
assertEquals(confDump.get("test.key2").getValue(), "value2");
// check the final tag
assertEquals(false, confDump.get("test.key1").getIsFinal());
assertEquals(true, confDump.get("test.key2").getIsFinal());
// check the resource for each property
for (JsonProperty prop : jconf.getProperties()) {
assertEquals(fileResource.toString(), prop.getResource());
}
}
@Override
public PropertyName findNameForSerialization(Annotated a) {
String name = null;
JsonGetter jg = _findAnnotation(a, JsonGetter.class);
if (jg != null) {
name = jg.value();
} else {
JsonProperty pann = _findAnnotation(a, JsonProperty.class);
if (pann != null) {
name = pann.value();
} else if (_hasAnnotation(a, JsonSerialize.class)
|| _hasAnnotation(a, JsonView.class)
|| _hasAnnotation(a, JsonRawValue.class)) {
name = "";
} else {
return null;
}
}
return PropertyName.construct(name);
}
public void testDumpConfiguration() throws IOException {
StringWriter outWriter = new StringWriter();
Configuration.dumpConfiguration(conf, outWriter);
String jsonStr = outWriter.toString();
ObjectMapper mapper = new ObjectMapper();
JsonConfiguration jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
int defaultLength = jconf.getProperties().length;
// add 3 keys to the existing configuration properties
out = new BufferedWriter(new FileWriter(CONFIG));
startConfig();
appendProperty("test.key1", "value1");
appendProperty("test.key2", "value2", true);
appendProperty("test.key3", "value3");
endConfig();
Path fileResource = new Path(CONFIG);
conf.addResource(fileResource);
out.close();
outWriter = new StringWriter();
Configuration.dumpConfiguration(conf, outWriter);
jsonStr = outWriter.toString();
mapper = new ObjectMapper();
jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
int length = jconf.getProperties().length;
// check for consistency in the number of properties parsed in Json format.
assertEquals(length, defaultLength + 3);
// change few keys in another resource file
out = new BufferedWriter(new FileWriter(CONFIG2));
startConfig();
appendProperty("test.key1", "newValue1");
appendProperty("test.key2", "newValue2");
endConfig();
Path fileResource1 = new Path(CONFIG2);
conf.addResource(fileResource1);
out.close();
outWriter = new StringWriter();
Configuration.dumpConfiguration(conf, outWriter);
jsonStr = outWriter.toString();
mapper = new ObjectMapper();
jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
// put the keys and their corresponding attributes into a hashmap for their
// efficient retrieval
HashMap<String, JsonProperty> confDump = new HashMap<String, JsonProperty>();
for (JsonProperty prop : jconf.getProperties()) {
confDump.put(prop.getKey(), prop);
}
// check if the value and resource of test.key1 is changed
assertEquals("newValue1", confDump.get("test.key1").getValue());
assertEquals(false, confDump.get("test.key1").getIsFinal());
assertEquals(fileResource1.toString(), confDump.get("test.key1").getResource());
// check if final parameter test.key2 is not changed, since it is first
// loaded as final parameter
assertEquals("value2", confDump.get("test.key2").getValue());
assertEquals(true, confDump.get("test.key2").getIsFinal());
assertEquals(fileResource.toString(), confDump.get("test.key2").getResource());
// check for other keys which are not modified later
assertEquals("value3", confDump.get("test.key3").getValue());
assertEquals(false, confDump.get("test.key3").getIsFinal());
assertEquals(fileResource.toString(), confDump.get("test.key3").getResource());
// check for resource to be "Unknown" for keys which are loaded using 'set'
// and expansion of properties
conf.set("test.key4", "value4");
conf.set("test.key5", "value5");
conf.set("test.key6", "${test.key5}");
outWriter = new StringWriter();
Configuration.dumpConfiguration(conf, outWriter);
jsonStr = outWriter.toString();
mapper = new ObjectMapper();
jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
confDump = new HashMap<String, JsonProperty>();
for (JsonProperty prop : jconf.getProperties()) {
confDump.put(prop.getKey(), prop);
}
assertEquals("value5", confDump.get("test.key6").getValue());
assertEquals("programatically", confDump.get("test.key4").getResource());
outWriter.close();
}