StandaloneApplicationContext.java

/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU General Public License, version 2 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/gpl-2.0.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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 General Public License for more details.
 *
 *
 * Copyright 2005 - 2008 Pentaho Corporation.  All rights reserved. 
 * 
 * @created Jun 22, 2005 
 * @author James Dixon
 * 
 */

package org.pentaho.platform.engine.core.system;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;

import org.pentaho.platform.api.engine.IApplicationContext;
import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.api.engine.IPentahoSystemEntryPoint;
import org.pentaho.platform.api.engine.IPentahoSystemExitPoint;
import org.pentaho.platform.api.util.ITempFileDeleter;

public class StandaloneApplicationContext implements IApplicationContext {

  private String solutionRootPath;

  private String baseUrl;

  private String applicationPath;

  private Object context;

  private Properties properties = new Properties();

  private final List<IPentahoSystemEntryPoint> entryPointsList = new ArrayList<IPentahoSystemEntryPoint>();

  private final List<IPentahoSystemExitPoint> exitPointsList = new ArrayList<IPentahoSystemExitPoint>();

  public StandaloneApplicationContext(final String solutionRootPath, final String applicationPath, final Object context) {
    this(solutionRootPath, applicationPath);
    this.context = context;
  }

  public StandaloneApplicationContext(final String solutionRootPath, final String applicationPath) {
    //TODO sbarkdull, do we need to consider path separators for windows?
    //assert !solutionRootPath.endsWith("\\") : "solutionRootPathin StandaloneApplicationContext appears to be using Windows path separators.";
    //assert !applicationPath.endsWith("\\") : "applicationPath in StandaloneApplicationContext appears to be using Windows path separators.";

    this.solutionRootPath = solutionRootPath;
    this.applicationPath = applicationPath;
    baseUrl = null;
  }

  public void setBaseUrl(final String baseUrl) {
    this.baseUrl = baseUrl;
  }

  public String getFileOutputPath(final String path) {
    return solutionRootPath + File.separator + path;
  }

  public String getSolutionPath(final String path) {
    return solutionRootPath + File.separator + path;
  }

  public void setSolutionRootPath(final String solutionRootPath) {
    this.solutionRootPath = solutionRootPath;
  }

  public File createTempFile(final IPentahoSession session, final String prefix, final String extn, boolean trackFile) throws IOException {
    return createTempFile(session, prefix, extn, new File(getSolutionPath("system/tmp")), trackFile); //$NON-NLS-1$
  }
  
  public File createTempFile(final IPentahoSession session, final String prefix, final String extn, final File parentDir, boolean trackFile) throws IOException {
    ITempFileDeleter fileDeleter = null;
    if ((session != null) && trackFile) {
      fileDeleter = (ITempFileDeleter)session.getAttribute(ITempFileDeleter.DELETER_SESSION_VARIABLE);
    }
    final String newPrefix = new StringBuilder().append(prefix).append(session.getId().substring(0, 10)).append('-').toString();
    final File file = File.createTempFile(newPrefix, extn, parentDir);
    if (fileDeleter != null) {
      fileDeleter.trackTempFile(file);
    } else {
      // There is no deleter, so cleanup on VM exit. (old behavior)
      file.deleteOnExit(); 
    }
    return file;
  }
  
  
  
  /*
   * (non-Javadoc)
   * 
   * @see org.pentaho.newcode.IApplicationContext#getServerName()
   */
  public String getPentahoServerName() {
    return ""; //$NON-NLS-1$
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.pentaho.newcode.IApplicationContext#getServerPort()
   */
  public int getServerPort() {
    // TODO Auto-generated method stub
    return 0;
  }

  public String getBaseUrl() {
    return baseUrl;
  }

  public String getApplicationPath(final String path) {
    return applicationPath + File.separator + path;
  }

  public String getProperty(final String key) {
    return properties.getProperty(key);
  }

  public String getProperty(final String key, final String defaultValue) {
    return properties.getProperty(key, defaultValue);
  }

  public void setProperties(final Properties props) {
    properties = props;
  }

  public void addEntryPointHandler(final IPentahoSystemEntryPoint entryPoint) {
    entryPointsList.add(entryPoint);
  }

  public void removeEntryPointHandler(final IPentahoSystemEntryPoint entryPoint) {
    entryPointsList.remove(entryPoint);
  }

  public void addExitPointHandler(final IPentahoSystemExitPoint exitPoint) {
    exitPointsList.add(exitPoint);
  }

  public void removeExitPointHandler(final IPentahoSystemExitPoint exitPoint) {
    exitPointsList.remove(exitPoint);
  }

  public void invokeEntryPoints() {
    for (int i = 0; i < entryPointsList.size(); i++) {
      ((IPentahoSystemEntryPoint) entryPointsList.get(i)).systemEntryPoint();
    }
  }

  public void invokeExitPoints() {
    for (int i = 0; i < exitPointsList.size(); i++) {
      ((IPentahoSystemExitPoint) entryPointsList.get(i)).systemExitPoint();
    }
  }

  public Object getContext() {
    return context;
  }

  public void setContext(final Object context) {
    this.context = context;
  }

  public String getSolutionRootPath() {
    return solutionRootPath;
  }

}