Package com.apitrary.api.client.support

Source Code of com.apitrary.api.client.support.AbstractApitraryClient

/*
* Copyright 2012-2013 Denis Neuling
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.apitrary.api.client.support;

import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Map;
import java.util.Set;

import org.apache.log4j.Logger;

import com.apitrary.api.ApitraryApi;
import com.apitrary.api.client.common.HttpStatus;
import com.apitrary.api.client.common.Timer;
import com.apitrary.api.client.exception.ClientException;
import com.apitrary.api.client.exception.CommunicationErrorException;
import com.apitrary.api.client.util.HttpMethodUtil;
import com.apitrary.api.client.util.PathUtil;
import com.apitrary.api.client.util.RequestUtil;
import com.apitrary.api.common.HttpMethod;
import com.apitrary.api.request.Request;
import com.apitrary.api.response.Response;
import com.apitrary.api.transport.ApiClientTransportFactory;
import com.apitrary.api.transport.TransportResult;

/**
* <p>
* Abstract AbstractApitraryClient class.
* </p>
*
* @author Denis Neuling (denisneuling@gmail.com)
*
*/
public abstract class AbstractApitraryClient {
  protected final Logger log = Logger.getLogger(this.getClass());

  protected ApitraryApi api;
 
  private ApiClientTransportFactory apiClientTransportFactory = new ApiClientTransportFactory();
 
  /**
   * <p>Getter for the field <code>apiClientTransportFactory</code>.</p>
   *
   * @return a {@link com.apitrary.api.transport.ApiClientTransportFactory} object.
   * @since 0.1.1
   */
  public ApiClientTransportFactory getApiClientTransportFactory() {
    return apiClientTransportFactory;
  }

  /**
   * <p>
   * dispatchByMethod.
   * </p>
   *
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link com.apitrary.api.response.Response} object.
   */
  protected <T> Response<T> dispatchByMethod(Request<T> request) {
    HttpMethod method = HttpMethodUtil.retrieveMethod(request);

    switch (method) {
      case GET:
        return doGet(request);
      case POST:
        return doPost(request);
      case PUT:
        return doPut(request);
      case DELETE:
        return doDelete(request);
      default:
        throw new CommunicationErrorException(HttpStatus.Not_Implemented);
    }
  }

  /**
   * <p>
   * doGet.
   * </p>
   *
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link com.apitrary.api.response.Response} object.
   */
  protected <T> Response<T> doGet(Request<T> request) {
    URI uri = buidURI(request);
   
    Timer timer = Timer.tic();
    TransportResult result = getApiClientTransportFactory().newTransport(api).doGet(uri);
    timer.toc();
   
    log.trace(result.getStatusCode() + " " + uri.toString() + " took " + timer.getDifference() + "ms");

    Response<T> response = toResponse(timer, result, request);

    return response;
  }

  /**
   * <p>
   * doPost.
   * </p>
   *
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link com.apitrary.api.response.Response} object.
   */
  protected <T> Response<T> doPost(Request<T> request) {
    String payload = RequestUtil.getRequestPayload(request);
    URI uri = buidURI(request);

    Timer timer = Timer.tic();
    TransportResult result = getApiClientTransportFactory().newTransport(api).doPost(uri, payload);
    timer.toc();

    log.trace(result.getStatusCode() + " " + uri.toString() + " took " + timer.getDifference() + "ms");

    Response<T> response = toResponse(timer, result, request);

    return response;
  }

  /**
   * <p>
   * doPut.
   * </p>
   *
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link com.apitrary.api.response.Response} object.
   */
  protected <T> Response<T> doPut(Request<T> request) {
    String payload = RequestUtil.getRequestPayload(request);
    URI uri = buidURI(request);
   
    Timer timer = Timer.tic();
    TransportResult result = getApiClientTransportFactory().newTransport(api).doPut(uri, payload);
    timer.toc();

    log.trace(result.getStatusCode() + " " + uri.toString() + " took " + timer.getDifference() + "ms");

    Response<T> response = toResponse(timer, result, request);

    return response;
  }

  /**
   * <p>
   * doDelete.
   * </p>
   *
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link com.apitrary.api.response.Response} object.
   */
  protected <T> Response<T> doDelete(Request<T> request) {
    URI uri = buidURI(request);
   
    Timer timer = Timer.tic();
    TransportResult result = getApiClientTransportFactory().newTransport(api).doDelete(uri);
    timer.toc();

    log.trace(result.getStatusCode() + " " + uri.toString() + " took " + timer.getDifference() + "ms");

    Response<T> response = toResponse(timer, result, request);

    return response;
  }
 
  /**
   * <p>buidURI.</p>
   *
   * @param request a {@link com.apitrary.api.request.Request} object.
   * @param <T> a T object.
   * @return a {@link java.net.URI} object.
   * @since 0.1.1
   */
  protected <T> URI buidURI(Request<T> request){
    URL url = null;
    try {
      url = api.getURL();
    } catch (MalformedURLException e) {
      throw new ClientException(e);
    }
    String path = inquirePath(request);
    Map<String,String> qry = RequestUtil.resolveQueryPart(request);
   
    Set<String> keys = qry.keySet();
    String query = "";
    if(!keys.isEmpty()){
      for(String key : keys){
        query += (!query.isEmpty()?"&":"?")+key+"="+qry.get(key);
      }
    }
   
    String fqrn = url.toString() + path + query;
    try {
      return new URI(fqrn);
    } catch (URISyntaxException e) {
      throw new ClientException(e);
    }
  }

  private <T> Response<T> toResponse(Timer timer, TransportResult transportResult, Request<T> request) {
    Response<T> response = null;
    HttpStatus status = HttpStatus.getStatus(transportResult.getStatusCode());
    response = deserialize(transportResult.getResult(), request);
    response.setStatusCode(status.getCode());
    response.setResponseTime(timer.getDifference());
    return response;
  }

  /**
   * <p>
   * inquirePath.
   * </p>
   *
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link java.lang.String} object.
   */
  protected <T> String inquirePath(Request<T> request) {
    return PathUtil.resolveResourcePath(request);
  }

  /**
   * <p>
   * deserialize.
   * </p>
   *
   * @param response
   *            a {@link java.lang.String} object.
   * @param request
   *            a {@link com.apitrary.api.request.Request} object.
   * @param <T>
   *            a T object.
   * @return a {@link com.apitrary.api.response.Response} object.
   */
  protected abstract <T> Response<T> deserialize(String response, Request<T> request);
}
TOP

Related Classes of com.apitrary.api.client.support.AbstractApitraryClient

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.