org.codehaus.mojo.sonar.ServerMetadata.java Source code

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Here is the source code for org.codehaus.mojo.sonar.ServerMetadata.java

Source

package org.codehaus.mojo.sonar;

/*
 * The MIT License
 *
 * Copyright 2009 The Codehaus.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import org.apache.commons.io.IOUtils;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.logging.Log;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;

public class ServerMetadata {

    public static final int CONNECT_TIMEOUT_MILLISECONDS = 30000;
    public static final int READ_TIMEOUT_MILLISECONDS = 60000;

    private String url;
    private String version;

    public ServerMetadata(String url) {
        if (url.endsWith("/")) {
            this.url = url.substring(0, url.length() - 1);
        } else {
            this.url = url;
        }
    }

    public String getVersion() throws IOException {
        if (version == null) {
            version = remoteContent("/api/server/version");
        }
        return version;
    }

    public String getUrl() {
        return url;
    }

    public void logSettings(Log log) throws MojoExecutionException {
        try {
            log.info("Sonar version: " + getVersion());

        } catch (IOException e) {
            throw new MojoExecutionException(
                    "Sonar server can not be reached at " + url + ". Please check the parameter 'sonar.host.url'.");
        }
    }

    protected String remoteContent(String path) throws IOException {
        String fullUrl = url + path;
        HttpURLConnection conn = getConnection(fullUrl + path, "GET");
        Reader reader = new InputStreamReader((InputStream) conn.getContent());
        try {
            int statusCode = conn.getResponseCode();
            if (statusCode != HttpURLConnection.HTTP_OK) {
                throw new IOException("Status returned by url : '" + fullUrl + "' is invalid : " + statusCode);
            }
            return IOUtils.toString(reader);

        } finally {
            IOUtils.closeQuietly(reader);
            conn.disconnect();
        }
    }

    static HttpURLConnection getConnection(String url, String method) throws IOException {
        URL page = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) page.openConnection();
        conn.setConnectTimeout(CONNECT_TIMEOUT_MILLISECONDS);
        conn.setReadTimeout(READ_TIMEOUT_MILLISECONDS);
        conn.setRequestMethod(method);
        conn.connect();
        return conn;
    }

    protected boolean supportsMaven3() throws IOException {
        return !isVersionPriorTo2Dot4(getVersion());
    }

    protected static boolean isVersionPriorTo2Dot4(String version) {
        return version.startsWith("1.") || version.startsWith("2.0.") || version.equals("2.1")
                || version.equals("2.2") || version.startsWith("2.1.") || version.startsWith("2.3.")
                || version.equals("2.3");
    }
}