Files
jlibredis/src/main/java/redis/clients/jedis/Response.java
Jungtaek Lim 68ee4e49d0 Set dependency to Response when multi in pipeline and build dependency
first if Response's dependency found and not built

* there's some dependency with exec response and command responses
within multi
* if command responses's get() called before exec response's build(), it
calls exec response's build() first
* unit test included
2014-02-17 13:37:06 +09:00

62 lines
1.4 KiB
Java

package redis.clients.jedis;
import redis.clients.jedis.exceptions.JedisDataException;
public class Response<T> {
protected T response = null;
private boolean built = false;
private boolean set = false;
private Builder<T> builder;
private Object data;
private Response<?> dependency = null;
private boolean requestDependencyBuild = false;
public Response(Builder<T> b) {
this.builder = b;
}
public void set(Object data) {
this.data = data;
set = true;
}
public T get() {
// if response has dependency response and dependency is not built,
// build it first and no more!!
if (!requestDependencyBuild && dependency != null && dependency.set
&& !dependency.built) {
requestDependencyBuild = true;
dependency.build();
}
if (!set) {
throw new JedisDataException(
"Please close pipeline or multi block before calling this method.");
}
if (!built) {
build();
}
return response;
}
public void setDependency(Response<?> dependency) {
this.dependency = dependency;
this.requestDependencyBuild = false;
}
private void build() {
if (data != null) {
if (data instanceof JedisDataException) {
throw new JedisDataException((JedisDataException) data);
}
response = builder.build(data);
}
data = null;
built = true;
}
public String toString() {
return "Response " + builder.toString();
}
}