AsyncRESTReplyer.java

package org.zstack.simulator;

import org.springframework.beans.factory.annotation.Autowire;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.zstack.header.rest.RESTConstant;
import org.zstack.header.rest.RESTFacade;
import org.zstack.utils.gson.JSONObjectUtil;

@Configurable(preConstruction = true, autowire = Autowire.BY_TYPE)
public class AsyncRESTReplyer {
    @Autowired
    private RESTFacade restf;
    
    public void reply(HttpEntity<String> entity, Object rsp) {
        String taskUuid = entity.getHeaders().getFirst(RESTConstant.TASK_UUID);
        String callbackUrl = entity.getHeaders().getFirst(RESTConstant.CALLBACK_URL);
        String rspBody = JSONObjectUtil.toJsonString(rsp);
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);
        headers.setContentLength(rspBody.length());
        headers.set(RESTConstant.TASK_UUID, taskUuid);
        HttpEntity<String> rreq = new HttpEntity<String>(rspBody, headers);
        restf.getRESTTemplate().exchange(callbackUrl, HttpMethod.POST, rreq, String.class);
    }
}