plugins/org.eclipse.oomph.setup/src/org/eclipse/oomph/setup/impl/LinkLocationTaskImpl.java

/*
 * Copyright (c) 2014, 2015, 2018 Eike Stepper (Loehne, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *
 * Contributors:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.oomph.setup.impl;

import org.eclipse.oomph.setup.LinkLocationTask;
import org.eclipse.oomph.setup.SetupPackage;
import org.eclipse.oomph.setup.SetupTaskContext;
import org.eclipse.oomph.setup.Trigger;
import org.eclipse.oomph.util.IOUtil;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;

import java.io.File;
import java.util.Collections;
import java.util.List;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Link Location Task</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.oomph.setup.impl.LinkLocationTaskImpl#getPath <em>Path</em>}</li>
 *   <li>{@link org.eclipse.oomph.setup.impl.LinkLocationTaskImpl#getName <em>Name</em>}</li>
 * </ul>
 *
 * @generated
 */
public class LinkLocationTaskImpl extends SetupTaskImpl implements LinkLocationTask
{
  /**
   * The default value of the '{@link #getPath() <em>Path</em>}' attribute.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getPath()
   * @generated
   * @ordered
   */
  protected static final String PATH_EDEFAULT = null;

  /**
   * The cached value of the '{@link #getPath() <em>Path</em>}' attribute.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getPath()
   * @generated
   * @ordered
   */
  protected String path = PATH_EDEFAULT;

  /**
   * The default value of the '{@link #getName() <em>Name</em>}' attribute.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getName()
   * @generated
   * @ordered
   */
  protected static final String NAME_EDEFAULT = null;

  /**
   * The cached value of the '{@link #getName() <em>Name</em>}' attribute.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getName()
   * @generated
   * @ordered
   */
  protected String name = NAME_EDEFAULT;

  private transient File link;

  private transient File canonicalPath;

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected LinkLocationTaskImpl()
  {
    super();
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  protected EClass eStaticClass()
  {
    return SetupPackage.Literals.LINK_LOCATION_TASK;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public String getPath()
  {
    return path;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setPath(String newPath)
  {
    String oldPath = path;
    path = newPath;
    if (eNotificationRequired())
    {
      eNotify(new ENotificationImpl(this, Notification.SET, SetupPackage.LINK_LOCATION_TASK__PATH, oldPath, path));
    }
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public String getName()
  {
    return name;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setName(String newName)
  {
    String oldName = name;
    name = newName;
    if (eNotificationRequired())
    {
      eNotify(new ENotificationImpl(this, Notification.SET, SetupPackage.LINK_LOCATION_TASK__NAME, oldName, name));
    }
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Object eGet(int featureID, boolean resolve, boolean coreType)
  {
    switch (featureID)
    {
      case SetupPackage.LINK_LOCATION_TASK__PATH:
        return getPath();
      case SetupPackage.LINK_LOCATION_TASK__NAME:
        return getName();
    }
    return super.eGet(featureID, resolve, coreType);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void eSet(int featureID, Object newValue)
  {
    switch (featureID)
    {
      case SetupPackage.LINK_LOCATION_TASK__PATH:
        setPath((String)newValue);
        return;
      case SetupPackage.LINK_LOCATION_TASK__NAME:
        setName((String)newValue);
        return;
    }
    super.eSet(featureID, newValue);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void eUnset(int featureID)
  {
    switch (featureID)
    {
      case SetupPackage.LINK_LOCATION_TASK__PATH:
        setPath(PATH_EDEFAULT);
        return;
      case SetupPackage.LINK_LOCATION_TASK__NAME:
        setName(NAME_EDEFAULT);
        return;
    }
    super.eUnset(featureID);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public boolean eIsSet(int featureID)
  {
    switch (featureID)
    {
      case SetupPackage.LINK_LOCATION_TASK__PATH:
        return PATH_EDEFAULT == null ? path != null : !PATH_EDEFAULT.equals(path);
      case SetupPackage.LINK_LOCATION_TASK__NAME:
        return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
    }
    return super.eIsSet(featureID);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public String toString()
  {
    if (eIsProxy())
    {
      return super.toString();
    }

    StringBuilder result = new StringBuilder(super.toString());
    result.append(" (path: ");
    result.append(path);
    result.append(", name: ");
    result.append(name);
    result.append(')');
    return result.toString();
  }

  @Override
  public int getPriority()
  {
    return PRIORITY_INSTALLATION;
  }

  public boolean isNeeded(SetupTaskContext context) throws Exception
  {
    if (context.isSelfHosting() && context.getTrigger() != Trigger.BOOTSTRAP)
    {
      return false;
    }

    File links = new File(context.getProductLocation(), "links");
    canonicalPath = new File(getPath()).getCanonicalFile();

    String name = getName();
    if (name == null || name.length() == 0)
    {
      name = canonicalPath.getName();
    }

    link = new File(links, name + ".link");
    return !link.exists();
  }

  public void perform(SetupTaskContext context) throws Exception
  {
    List<String> lines = Collections.singletonList("path=" + canonicalPath.toString().replace("\\", "\\\\"));
    IOUtil.writeLines(link, null, lines);
    context.setRestartNeeded("Product extension locations have been added to the installation.");
  }

} // LinkLocationTaskImpl