jp.dip.komusubi.botter.util.TrimUrlUtil.java Source code

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Here is the source code for jp.dip.komusubi.botter.util.TrimUrlUtil.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 jp.dip.komusubi.botter.util;

import java.net.URL;

import jp.dip.komusubi.botter.BotterException;
import jp.dip.komusubi.botter.UrlUtil;

import org.apache.commons.codec.EncoderException;
import org.apache.commons.codec.net.URLCodec;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author jun.ozeki
 * @version $Id: TrimUrlUtil.java 1345 2010-07-18 14:31:51Z jun $
 * @since 2010/07/18
 */
public class TrimUrlUtil implements UrlUtil {
    private static final Logger logger = LoggerFactory.getLogger(TrimUrlUtil.class);
    private static final String BASE_URL = "http://api.tr.im";
    private static final String API_VERSION = "v1";
    private static final String SHORTEN_SERVICE_PATH = "trim_simple";
    private static final String SHORTEN_SERVICE_URL = BASE_URL + "/" + API_VERSION + "/" + SHORTEN_SERVICE_PATH;

    @Override
    public String shorten(String url) {
        String responseLine = null;
        try {
            URLCodec codec = new URLCodec();
            String requestUrl = SHORTEN_SERVICE_URL + "?url=" + codec.encode(url);
            responseLine = UrlAccessDelegate.readFirstLine(requestUrl);
            if (responseLine == null)
                logger.warn("tr.im response is null, URL is :{}", requestUrl);
        } catch (EncoderException e) {
            throw new BotterException(e);
        }
        return responseLine;
    }

    @Override
    public String shorten(URL url) {
        return shorten(url.toExternalForm());
    }

}