private void assertVersion(Versioned vers) {
final Version v = vers.version();
assertFalse("Should find version information (got " + v + ")", v.isUknownVersion());
Version exp = PackageVersion.VERSION;
assertEquals(exp.toFullString(), v.toFullString());
assertEquals(exp, v);
}
/**
* Helper method that will try to load version information for specified class. Implementation is
* simple: class loader that loaded specified class is asked to load resource with name "VERSION"
* from same location (package) as class itself had. If no version information is found, {@link
* Version#unknownVersion()} is returned.
*/
public static Version versionFor(Class<?> cls) {
InputStream in;
Version version = null;
try {
in = cls.getResourceAsStream(VERSION_FILE);
if (in != null) {
try {
BufferedReader br = new BufferedReader(new InputStreamReader(in, "UTF-8"));
String groupStr = null, artifactStr = null;
String versionStr = br.readLine();
if (versionStr != null) {
groupStr = br.readLine();
if (groupStr != null) {
groupStr = groupStr.trim();
artifactStr = br.readLine();
if (artifactStr != null) {
artifactStr = artifactStr.trim();
}
}
}
version = parseVersion(versionStr, groupStr, artifactStr);
} finally {
try {
in.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
} catch (IOException e) {
}
return (version == null) ? Version.unknownVersion() : version;
}
/**
* Will attempt to load the maven version for the given groupId and artifactId. Maven puts a
* pom.properties file in META-INF/maven/groupId/artifactId, containing the groupId, artifactId
* and version of the library.
*
* @param classLoader the ClassLoader to load the pom.properties file from
* @param groupId the groupId of the library
* @param artifactId the artifactId of the library
* @return The version
*/
public static Version mavenVersionFor(
ClassLoader classLoader, String groupId, String artifactId) {
InputStream pomPoperties =
classLoader.getResourceAsStream(
"META-INF/maven/"
+ groupId.replaceAll("\\.", "/")
+ "/"
+ artifactId
+ "/pom.properties");
if (pomPoperties != null) {
try {
Properties props = new Properties();
props.load(pomPoperties);
String versionStr = props.getProperty("version");
String pomPropertiesArtifactId = props.getProperty("artifactId");
String pomPropertiesGroupId = props.getProperty("groupId");
return parseVersion(versionStr, pomPropertiesGroupId, pomPropertiesArtifactId);
} catch (IOException e) {
// Ignore
} finally {
try {
pomPoperties.close();
} catch (IOException e) {
// Ignore
}
}
}
return Version.unknownVersion();
}
public void testSimpleKeyDeser() throws Exception {
ObjectMapper mapper = new ObjectMapper();
SimpleModule module = new SimpleModule("test", Version.unknownVersion());
module.addKeyDeserializer(String.class, new ContextualDeser("???"));
mapper.registerModule(module);
MapBean result = mapper.readValue("{\"map\":{\"a\":3}}", MapBean.class);
Map<String, Integer> map = result.map;
assertNotNull(map);
assertEquals(1, map.size());
Map.Entry<String, Integer> entry = map.entrySet().iterator().next();
assertEquals(Integer.valueOf(3), entry.getValue());
assertEquals("map:a", entry.getKey());
}
public void testSimpleKeySer() throws Exception {
ObjectMapper mapper = new ObjectMapper();
SimpleModule module = new SimpleModule("test", Version.unknownVersion());
module.addKeySerializer(String.class, new ContextualKeySerializer("prefix"));
mapper.registerModule(module);
Map<String, Object> input = new HashMap<String, Object>();
input.put("a", Integer.valueOf(3));
String json =
mapper
.writerWithType(
TypeFactory.defaultInstance()
.constructMapType(HashMap.class, String.class, Object.class))
.writeValueAsString(input);
assertEquals("{\"prefix:a\":3}", json);
}
protected VersionUtil() {
Version v = null;
try {
/* Class we pass only matters for resource-loading: can't use this Class
* (as it's just being loaded at this point), nor anything that depends on it.
*/
v = VersionUtil.versionFor(getClass());
} catch (Exception e) { // not good to dump to stderr; but that's all we have at this low level
System.err.println(
"ERROR: Failed to load Version information for bundle (via "
+ getClass().getName()
+ ").");
}
if (v == null) {
v = Version.unknownVersion();
}
_version = v;
}
/**
* Convenience constructor that will use specified Version, including name from {@link
* Version#getArtifactId()}
*/
public SimpleModule(Version version) {
_name = version.getArtifactId();
_version = version;
}
/** Convenience constructor that will default version to {@link Version#unknownVersion()}. */
public SimpleModule(String name) {
this(name, Version.unknownVersion());
}
/**
* Constructors that should only be used for non-reusable convenience modules used by app code:
* "real" modules should use actual name and version number information.
*/
public SimpleModule() {
// when passing 'this', can not chain constructors...
_name = "SimpleModule-" + System.identityHashCode(this);
_version = Version.unknownVersion();
}