/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed 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 org.argeo.slc.lib.linux;
  
  import org.argeo.slc.SlcException;
  import org.argeo.slc.core.deploy.LocalFilesDeployment;
  import org.argeo.slc.core.deploy.ResourceSet;
  import org.argeo.slc.core.execution.tasks.SystemCall;
  import org.argeo.slc.jsch.RemoteExec;
  import org.argeo.slc.jsch.SshFilesDeployment;
  import org.argeo.slc.jsch.SshTarget;
  
  public class RedhatHostManager {
  
  	private SimpleLinuxHost host;
  
  	// SSH
  	private Boolean useSsh = true;
  	private SshTarget sshTarget = null;
  
  	public void installPackages() {
  		StringBuffer cmd = new StringBuffer("yum --nogpgcheck -y install");
  		for (String pkg : ((RpmDistribution) host.getDistribution())
  				.getAdditionalPackages()) {
  			cmd.append(' ').append(pkg);
  		}
  		executeCommand(cmd.toString());
  
  		RedhatDeploymentData rdd = (RedhatDeploymentData) host
  				.getDeploymentData();
  		executeCommand(rdd.getRunlevelsScript());
  	}
  
  	public void deployConfig() {
  		RedhatDeploymentData rdd = (RedhatDeploymentData) host
  				.getDeploymentData();
  		deploy(rdd.getConfigurationFiles());
  		executeCommand(rdd.getPermissionsScript());
  	}
  
  	// GENERIC?
  	protected void deploy(ResourceSet resourceSet) {
  		if (useSsh)
  			new SshFilesDeployment(getSshTarget(), resourceSet).run();
  		else
  			new LocalFilesDeployment(resourceSet).run();
  
  	}
  
  	protected void executeCommand(String command) {
  		if (command == null)
  			return;
  
  		if (useSsh) {
  			RemoteExec rExec = new RemoteExec(getSshTarget(), command);
  			rExec.setFailOnBadExitStatus(false);
  			rExec.run();
  		} else
  			new SystemCall(command).run();
  	}
  
  	protected SshTarget getSshTarget() {
  		if (sshTarget == null)
  			throw new SlcException("No SSH target defined");
  		return sshTarget;
  	}
  
  	public void setHost(SimpleLinuxHost host) {
  		this.host = host;
  	}
  
  	public void setUseSsh(Boolean useSsh) {
  		this.useSsh = useSsh;
  	}
  
  	public void setSshTarget(SshTarget sshTarget) {
  		this.sshTarget = sshTarget;
  	}
  
  }