com.ifengxue.http.parser.StreamHttpParser Maven / Gradle / Ivy

/*
 * Copyright 2019 https://www.ifengxue.com
 *
 * 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.ifengxue.http.parser;

import com.ifengxue.http.HttpClientException;
import com.ifengxue.http.contract.HttpResponse;
import com.ifengxue.http.util.TypeUtil;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Type;
import java.nio.charset.Charset;

/**
 * 支持的数据类型
 * 
 * InputStream
 * FilenameInputStream
 * 
 */
public class StreamHttpParser implements HttpParser {

  @Override
  @SuppressWarnings("unchecked")
  public  T parse(HttpResponse response, Charset charset, Type type) throws HttpClientException, IOException {
    if (TypeUtil.isTypeOf(type, FilenameInputStream.class)) {
      return (T) FilenameInputStream.from(response);
    }
    if (TypeUtil.isTypeOf(type, InputStream.class)) {
      return (T) response.getContent();
    }
    throw new HttpClientException(
        type.getTypeName() + " is not " + InputStream.class.getName() + " or " + FilenameInputStream.class.getName()
            + " type");
  }
}