/**
* Method for http GET
*
* @param <T>
* @param responseType a descendant of CkanResponse
* @param path something like /api/3/package_show
* @param params list of key, value parameters. They must be not be url encoded. i.e.
* "id","laghi-monitorati-trento"
* @throws JackanException on error
*/
<T extends CkanResponse> T getHttp(Class<T> responseType, String path, Object... params) {
checkNotNull(responseType);
checkNotNull(path);
String fullUrl = calcFullUrl(path, params);
try {
logger.log(Level.FINE, "getting {0}", fullUrl);
Request request = Request.Get(fullUrl);
if (ckanToken != null) {
request.addHeader("Authorization", ckanToken);
}
if (proxy != null) {
request.viaProxy(proxy);
}
String json = request.execute().returnContent().asString();
T dr = getObjectMapper().readValue(json, responseType);
if (!dr.success) {
// monkey patching error type
throw new JackanException(
"Reading from catalog "
+ catalogURL
+ " was not successful. Reason: "
+ CkanError.read(getObjectMapper().readTree(json).get("error").asText()));
}
return dr;
} catch (Exception ex) {
throw new JackanException("Error while performing GET. Request url was: " + fullUrl, ex);
}
}
/**
* Returns the latest api version supported by the catalog
*
* @throws JackanException on error
*/
private synchronized int getApiVersion(int number) {
String fullUrl = catalogURL + "/api/" + number;
logger.log(Level.FINE, "getting {0}", fullUrl);
try {
Request request = Request.Get(fullUrl);
if (proxy != null) {
request.viaProxy(proxy);
}
String json = request.execute().returnContent().asString();
return getObjectMapper().readValue(json, ApiVersionResponse.class).version;
} catch (Exception ex) {
throw new JackanException("Error while fetching api version!", this, ex);
}
}
/**
* @param <T>
* @param responseType a descendant of CkanResponse
* @param path something like 1/api/3/action/package_create
* @param body the body of the POST
* @param the content type, i.e.
* @param params list of key, value parameters. They must be not be url encoded. i.e.
* "id","laghi-monitorati-trento"
* @throws JackanException on error
*/
<T extends CkanResponse> T postHttp(
Class<T> responseType, String path, String body, ContentType contentType, Object... params) {
checkNotNull(responseType);
checkNotNull(path);
checkNotNull(body);
checkNotNull(contentType);
String fullUrl = calcFullUrl(path, params);
try {
logger.log(Level.FINE, "posting to url {0}", fullUrl);
Request request = Request.Post(fullUrl);
if (proxy != null) {
request.viaProxy(proxy);
}
Response response =
request.bodyString(body, contentType).addHeader("Authorization", ckanToken).execute();
Content out = response.returnContent();
String json = out.asString();
T dr = getObjectMapper().readValue(json, responseType);
if (!dr.success) {
// monkey patching error type
throw new JackanException(
"posting to catalog "
+ catalogURL
+ " was not successful. Reason: "
+ CkanError.read(getObjectMapper().readTree(json).get("error").asText()));
}
return dr;
} catch (Exception ex) {
throw new JackanException("Error while performing a POST! Request url is:" + fullUrl, ex);
}
}
