com.liferay.mobile.android.util.PortalVersionUtil.java Source code

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Here is the source code for com.liferay.mobile.android.util.PortalVersionUtil.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.mobile.android.util;

import com.liferay.mobile.android.http.HttpUtil;
import com.liferay.mobile.android.service.Session;
import com.liferay.mobile.android.v62.portal.PortalService;

import java.io.IOException;

import org.apache.http.Header;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 * @author Bruno Farache
 */
public class PortalVersionUtil {

    public static int getPortalVersion(Session session) throws Exception {
        int version = getBuilderNumberHeader(session.getServer());

        if (version == PortalVersion.UNKNOWN) {
            try {
                version = getBuilderNumber(session, HttpUtil.JSONWS_PATH_62);
            } catch (Exception e) {
                version = getBuilderNumber(session, HttpUtil.JSONWS_PATH_61);
            }
        }

        return version;
    }

    protected static int getBuilderNumber(Session session, String jsonWSPath) throws Exception {

        HttpUtil.setJSONWSPath(jsonWSPath);

        PortalService service = new PortalService(session);

        int version = PortalVersion.UNKNOWN;

        try {
            version = service.getBuildNumber();
        } finally {
            HttpUtil.setJSONWSPath(HttpUtil.JSONWS_PATH_62);
        }

        return version;
    }

    protected static int getBuilderNumberHeader(String url) throws IOException {
        HttpClient client = new DefaultHttpClient();
        HttpHead head = new HttpHead(url);
        HttpResponse response = client.execute(head);

        Header portalHeader = response.getFirstHeader("Liferay-Portal");

        if (portalHeader == null) {
            return PortalVersion.UNKNOWN;
        }

        String portalField = portalHeader.getValue();

        int indexOfBuild = portalField.indexOf("Build");

        if (indexOfBuild == -1) {
            return PortalVersion.UNKNOWN;
        } else {
            String buildNumber = portalField.substring(indexOfBuild + 6, indexOfBuild + 10);

            return Integer.valueOf(buildNumber);
        }
    }

}