ServiceRegistryRemoteImpl.java

/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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.opencastproject.serviceregistry.remote;

import org.opencastproject.security.api.TrustedHttpClient;
import org.opencastproject.serviceregistry.api.IncidentService;
import org.opencastproject.systems.MatterhornConstants;
import org.opencastproject.util.UrlSupport;

import org.apache.commons.lang3.StringUtils;
import org.osgi.framework.ServiceException;
import org.osgi.service.component.ComponentContext;

import java.net.MalformedURLException;
import java.net.URL;

/** OSGi bound implementation. */
public final class ServiceRegistryRemoteImpl extends ServiceRegistryRemoteBase {

  /** The http client to use when connecting to remote servers */
  private TrustedHttpClient client;

  /** The incident service */
  private IncidentService incidentService;

  /** Url of the actual service implementation */
  private String serviceUrl;

  /** The base URL of this server */
  private String serverUrl = UrlSupport.DEFAULT_BASE_URL;

  @Override
  public TrustedHttpClient getHttpClient() {
    return client;
  }

  @Override
  public IncidentService getIncidentService() {
    return incidentService;
  }

  @Override
  public String getServiceUrl() {
    return serviceUrl;
  }

  @Override
  public String getServerUrl() {
    return serverUrl;
  }

  public String getRegistryHostname() {
    return serverUrl;
  }

  /**
   * Callback for the OSGi environment that is called upon service activation.
   *
   * @param cc
   *          the component context
   */
  public void activate(ComponentContext cc) {
    if (cc == null || StringUtils.isBlank(cc.getBundleContext().getProperty(MatterhornConstants.SERVER_URL_PROPERTY))) {
      serverUrl = UrlSupport.DEFAULT_BASE_URL;
    } else {
      serverUrl = cc.getBundleContext().getProperty(MatterhornConstants.SERVER_URL_PROPERTY);
    }

    if (cc == null || StringUtils.isBlank(cc.getBundleContext().getProperty(OPT_SERVICE_REGISTRY_URL))) {
      try {
        serviceUrl = new URL(serverUrl + "/services").toExternalForm();
      } catch (MalformedURLException e) {
        throw new ServiceException(OPT_SERVICE_REGISTRY_URL + " is missing, and fallback localhost url is malformed: "
                + serverUrl + "/services");
      }
    } else {
      try {
        serviceUrl = new URL(cc.getBundleContext().getProperty(OPT_SERVICE_REGISTRY_URL)).toExternalForm();
      } catch (MalformedURLException e) {
        throw new ServiceException(OPT_SERVICE_REGISTRY_URL + " is malformed: "
                + StringUtils.trimToNull(cc.getBundleContext().getProperty(OPT_SERVICE_REGISTRY_URL)));
      }
    }
  }

  /** OSGi DI. */
  public void setTrustedHttpClient(TrustedHttpClient client) {
    this.client = client;
  }

  /** OSGi DI. */
  public void setIncidentService(IncidentService incidentService) {
    this.incidentService = incidentService;
  }

}