de.zib.gndms.gndmc.utils.DefaultResponseExtractor.java Source code

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Here is the source code for de.zib.gndms.gndmc.utils.DefaultResponseExtractor.java

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/**
 * Copyright 2008-2012 Zuse Institute Berlin (ZIB)
 * 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 de.zib.gndms.gndmc.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.client.ClientHttpResponse;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.LinkedList;
import java.util.List;

/**
 * @date: 14.03.12
 * @time: 13:42
 * @author: Jrg Bachmann
 * @email: bachmann@zib.de
 */
public class DefaultResponseExtractor implements EnhancedResponseExtractor {
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

    private int statusCode;
    private HttpHeaders headers;
    private InputStream body;
    private String url;

    @Override
    public void extractData(final String url, final ClientHttpResponse response) throws IOException {
        statusCode = response.getStatusCode().value();
        headers = response.getHeaders();
        body = response.getBody();
        this.url = url;
    }

    public int getStatusCode() {
        return statusCode;
    }

    public HttpHeaders getHeaders() {
        return headers;
    }

    public InputStream getBody() {
        return body;
    }

    public static List<String> getCookies(final HttpHeaders headers) {
        final List<String> cookies = new LinkedList<String>();

        for (String header : headers.keySet()) {
            if ("Set-Cookie".equals(header)) {
                for (String value : headers.get(header)) {
                    cookies.add(value);
                }
            }
        }

        return cookies;
    }

    public static String getLocation(final HttpHeaders headers) {
        for (String header : headers.keySet()) {
            if ("Location".equals(header)) {
                try {
                    return URLDecoder.decode(headers.get(header).get(0), "utf8");
                } catch (UnsupportedEncodingException e) {
                    throw new IllegalStateException("The system does not support utf8 decoding!");
                }
            }
        }

        return null;
    }

    public String getURL() {
        return url;
    }
}