org.onsteroids.eve.api.provider.img.DefaultCharacterPortraitApi.java Source code

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Here is the source code for org.onsteroids.eve.api.provider.img.DefaultCharacterPortraitApi.java

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/**
 * Copyright 2010 Tobias Sarnowski
 *
 * 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.onsteroids.eve.api.provider.img;

import com.eveonline.api.exceptions.ApiException;
import com.eveonline.api.img.CharacterPortrait;
import com.eveonline.api.img.CharacterPortraitApi;
import com.google.common.collect.Lists;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIUtils;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.message.BasicNameValuePair;
import org.onsteroids.eve.api.InternalApiException;
import org.onsteroids.eve.api.connector.http.ApiClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.inject.Inject;
import javax.inject.Provider;
import javax.inject.Singleton;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;

/**
 * @author Tobias Sarnowski
 */
@Singleton
final class DefaultCharacterPortraitApi implements CharacterPortraitApi {
    private static final Logger LOG = LoggerFactory.getLogger(DefaultCharacterPortraitApi.class);

    private static final String FORMAT = "image/jpeg";

    private final Provider<HttpClient> httpClientProvider;
    private final URI serverUri;

    @Inject
    public DefaultCharacterPortraitApi(@ApiClient Provider<HttpClient> httpClientProvider)
            throws URISyntaxException {
        this.httpClientProvider = httpClientProvider;
        serverUri = new URI(CharacterPortraitApi.URL);
    }

    @Override
    public CharacterPortrait getCharacterPortrait(long characterId, PortraitSize size) throws ApiException {
        HttpClient httpClient = httpClientProvider.get();

        List<NameValuePair> qparams = Lists.newArrayList();
        qparams.add(new BasicNameValuePair("c", Long.toString(characterId)));
        qparams.add(new BasicNameValuePair("s", Integer.toString(size.getSize())));

        final URI requestURI;
        try {
            requestURI = URIUtils.createURI(serverUri.getScheme(), serverUri.getHost(), serverUri.getPort(),
                    serverUri.getPath(), URLEncodedUtils.format(qparams, "UTF-8"), null);
        } catch (URISyntaxException e) {
            throw new InternalApiException(e);
        }

        LOG.trace("Resulting URI: {}", requestURI);
        final HttpPost postRequest = new HttpPost(requestURI);

        // make the real call
        LOG.trace("Fetching result from {}...", serverUri);
        final HttpResponse response;
        try {
            response = httpClient.execute(postRequest);
        } catch (IOException e) {
            throw new InternalApiException(e);
        }

        if (!FORMAT.equals(response.getEntity().getContentType().getValue())) {
            throw new InternalApiException(
                    "Failed to fetch portrait [" + response.getEntity().getContentType().getValue() + "].");
        }

        try {
            return new DefaultCharacterPortrait(response);
        } catch (IOException e) {
            throw new InternalApiException(e);
        }
    }
}