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Allow to parse parameters with @ParamParser before binding them to the request

This commit is contained in:
Ignasi Barrera 2011-12-13 11:28:13 +01:00
parent dda1b5baab
commit fd258352ea
2 changed files with 54 additions and 1 deletions
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13
core/src/main/java/org/jclouds/rest/internal/RestAnnotationProcessor.java
View File

@ -944,6 +944,7 @@ public class RestAnnotationProcessor<T> {
public GeneratedHttpRequest<T> decorateRequest(GeneratedHttpRequest<T> request) throws NegativeArraySizeException,
ExecutionException {
Cache<Integer, Set<Annotation>> indexToParamExtractor = methodToIndexOfParamToParamParserAnnotations.get(request.getJavaMethod());
OUTER: for (Entry<Integer, Set<Annotation>> entry : concat(//
filterValues(methodToIndexOfParamToBinderParamAnnotation.get(request.getJavaMethod()).asMap(), notEmpty)
.entrySet(), //
@ -978,7 +979,17 @@ public class RestAnnotationProcessor<T> {
}
}
if (input != null) {
request = binder.bindToRequest(request, input);
// Allow the input parameter to be parsed by the ParamParser before binding
Set<Annotation> extractors = indexToParamExtractor.get(entry.getKey());
Object parsedValue = null;
if (extractors != null && extractors.size() > 0) {
ParamParser extractor = (ParamParser) extractors.iterator().next();
parsedValue = injector.getInstance(extractor.value()).apply(input);
} else {
parsedValue = input;
}
request = binder.bindToRequest(request, parsedValue);
}
if (shouldBreak)
break OUTER;

42
core/src/test/java/org/jclouds/rest/internal/RestAnnotationProcessorTest.java
View File

@ -2537,6 +2537,48 @@ public class RestAnnotationProcessorTest extends BaseRestClientTest {
assertEquals(domain.getElem(), "Hello World");
}
public static class AppendTextParser implements Function<Object, String> {
@Override
public String apply(Object input)
{
return input.toString() + "PARSED";
}
}
public interface TestBindWithParamParser {
@GET
@Path("/foo")
public ListenableFuture<String> bindWithoutParsing(
@BinderParam(BindToStringPayload.class) String param);
@GET
@Path("/bar")
public ListenableFuture<String> bindAfterParsing(
@BinderParam(BindToStringPayload.class) @ParamParser(AppendTextParser.class) String param);
}
@Test
public void testBindWithoutParamParser() throws SecurityException, NoSuchMethodException, IOException {
RestAnnotationProcessor<TestBindWithParamParser> processor = factory(TestBindWithParamParser.class);
Method method = TestBindWithParamParser.class.getMethod("bindWithoutParsing", String.class);
GeneratedHttpRequest<TestBindWithParamParser> request = processor.createRequest(method, "test");
assertRequestLineEquals(request, "GET http://localhost:9999/foo HTTP/1.1");
assertNonPayloadHeadersEqual(request, "");
assertPayloadEquals(request, "test", "application/unknown", false);
}
@Test
public void testBindWithParamParser() throws SecurityException, NoSuchMethodException, IOException {
RestAnnotationProcessor<TestBindWithParamParser> processor = factory(TestBindWithParamParser.class);
Method method = TestBindWithParamParser.class.getMethod("bindAfterParsing", String.class);
GeneratedHttpRequest<TestBindWithParamParser> request = processor.createRequest(method, "test");
assertRequestLineEquals(request, "GET http://localhost:9999/bar HTTP/1.1");
assertNonPayloadHeadersEqual(request, "");
assertPayloadEquals(request, "testPARSED", "application/unknown", false);
}
@Test(expectedExceptions = NullPointerException.class)
public void testAddHostNullWithHost() throws Exception{
assertNull(RestAnnotationProcessor.addHostIfMissing(null,null));