com.anitech.resting.http.response.RestingResponse.java Source code

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Here is the source code for com.anitech.resting.http.response.RestingResponse.java

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/**
 * Copyright 2016-2017 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 com.anitech.resting.http.response;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

import org.apache.http.HttpResponse;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

import com.anitech.resting.exception.RestingException;
import com.anitech.resting.http.Header;

/**
 * HttpResponse Abstraction
 * 
 * @author Tapas
 *
 */
public class RestingResponse {

    private static final Logger logger = LogManager.getLogger(RestingResponse.class);

    private static HttpResponse httpResponse;

    public RestingResponse(HttpResponse response) {
        httpResponse = response;
    }

    public Header[] getAllHeaders() {
        org.apache.http.Header[] headers = httpResponse.getAllHeaders();
        return buildHeaders(headers);
    }

    public Header[] getHeaders(String name) {
        org.apache.http.Header[] headers = httpResponse.getHeaders(name);
        return buildHeaders(headers);
    }

    //TODO: Think about XML content type
    public Object getBody() throws RestingException {
        try {
            InputStream inputStream = httpResponse.getEntity().getContent();
            JSONParser jsonParser = new JSONParser();
            return jsonParser.parse(new InputStreamReader(inputStream, Charset.defaultCharset()));
        } catch (UnsupportedOperationException uoe) {
            throw new RestingException(uoe);
        } catch (IOException ioe) {
            throw new RestingException(ioe);
        } catch (ParseException pe) {
            throw new RestingException(pe);
        }
    }

    public int getStatusCode() {
        return httpResponse.getStatusLine().getStatusCode();
    }

    public String getHttpStatus() {
        return httpResponse.getStatusLine().toString();
    }

    public long getContentLength() {
        return httpResponse.getEntity().getContentLength();
    }

    public Header getContentType() {
        org.apache.http.Header header = httpResponse.getEntity().getContentType();
        return new Header(header.getName(), header.getValue());
    }

    public Header getContentEncoding() {
        org.apache.http.Header header = httpResponse.getEntity().getContentEncoding();
        return new Header(header.getName(), header.getValue());
    }

    /**
     * private method to convert from Apache header to Resting header
     * 
     * @param headers
     * @return Header[]
     */
    private Header[] buildHeaders(org.apache.http.Header[] headers) {
        logger.debug("Inside buildHeaders()");
        Header[] rHeaders = new Header[headers.length];
        int index = 0;
        for (org.apache.http.Header header : headers) {
            Header rHead = new Header(header.getName(), header.getValue());
            rHeaders[index] = rHead;
            ++index;
        }
        return rHeaders;
    }

}