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());
}
}
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();
}
