org.springframework.cloud.netflix.ribbon.apache.HttpClientUtils.java Source code

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Here is the source code for org.springframework.cloud.netflix.ribbon.apache.HttpClientUtils.java

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/*
 * Copyright 2013-2018 the original author or authors.
 *
 * 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 org.springframework.cloud.netflix.ribbon.apache;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.util.EntityUtils;

/**
 * Provides basic utilities for {@link org.apache.http.client.HttpClient}
 * @author Ryan Baxter
 */
public class HttpClientUtils {

    /**
     * Creates an new {@link HttpEntity} by copying the {@link HttpEntity} from the {@link HttpResponse}.
     * This method will close the response after copying the entity.
     * @param response The response to create the {@link HttpEntity} from
     * @return A new {@link HttpEntity}
     * @throws IOException thrown if there is a problem closing the response.
     */
    public static HttpEntity createEntity(HttpResponse response) throws IOException {
        ByteArrayInputStream is = new ByteArrayInputStream(EntityUtils.toByteArray(response.getEntity()));
        BasicHttpEntity entity = new BasicHttpEntity();
        entity.setContent(is);
        entity.setContentLength(response.getEntity().getContentLength());
        if (CloseableHttpResponse.class.isInstance(response)) {
            ((CloseableHttpResponse) response).close();
        }
        return entity;
    }
}