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• InputStreamResponseHandler.java

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me.chanjar.weixin.common.util.http.apache.InputStreamResponseHandler Maven / Gradle / Ivy

package me.chanjar.weixin.common.util.http.apache;

import java.io.IOException;
import java.io.InputStream;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpResponseException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.util.EntityUtils;

/**
 * 输入流响应处理器.
 *
 * @author Daniel Qian
 */
public class InputStreamResponseHandler implements ResponseHandler {
  public static final ResponseHandler INSTANCE = new InputStreamResponseHandler();
  private static final int STATUS_CODE_300 = 300;

  @Override
  public InputStream handleResponse(final HttpResponse response) throws IOException {
    final StatusLine statusLine = response.getStatusLine();
    final HttpEntity entity = response.getEntity();
    if (statusLine.getStatusCode() >= STATUS_CODE_300) {
      EntityUtils.consume(entity);
      throw new HttpResponseException(statusLine.getStatusCode(), statusLine.getReasonPhrase());
    }
    return entity == null ? null : entity.getContent();
  }

}