net.lmxm.ute.utils.HttpUtils.java Source code

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Here is the source code for net.lmxm.ute.utils.HttpUtils.java

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/**
 * Copyright (C) 2011 Shaun Johnson, LMXM LLC
 * 
 * This file is part of Universal Task Executer.
 * 
 * Universal Task Executer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 * 
 * Universal Task Executer is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * Universal Task Executer. If not, see <http://www.gnu.org/licenses/>.
 */
package net.lmxm.ute.utils;

import net.lmxm.ute.beans.locations.HttpLocation;
import net.lmxm.ute.beans.sources.HttpSource;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * The Class HttpUtils.
 */
public final class HttpUtils {

    /** The Constant LOGGER. */
    private static final Logger LOGGER = LoggerFactory.getLogger(HttpUtils.class);

    /**
     * Gets the full url.
     * 
     * @param source the source
     * @return the full url
     */
    public static String getFullUrl(final HttpSource source) {
        final String prefix = "execute() :";

        LOGGER.debug("{} entered", prefix);

        checkNotNull(source, "Source may not be null");

        final HttpLocation location = source.getLocation();
        checkNotNull(location, "Source location may not be null");

        final String url = StringUtils.trimToNull(location.getUrl());
        checkNotNull(url, "Source location url may not be blank");

        final String relativePath = source.getRelativePath();
        // Relative path may be null, StringUtils.join() will treat null values as empty strings

        final String fullUrl = PathUtils.buildFullPath(url, relativePath);

        LOGGER.debug("{} returning {}", prefix, fullUrl);

        return fullUrl;
    }

    /**
     * Prevent instantiation.
     */
    private HttpUtils() {
        throw new AssertionError("Cannot be instantiated");
    }
}