Package com.liferay.portlet

Source Code of com.liferay.portlet.PortletPreferencesImpl

/**
* Copyright (c) 2000-2005 Liferay, LLC. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

package com.liferay.portlet;

import java.io.IOException;
import java.io.Serializable;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import com.dotcms.repackage.javax.portlet.PortletPreferences;
import com.dotcms.repackage.javax.portlet.PreferencesValidator;
import com.dotcms.repackage.javax.portlet.ReadOnlyException;
import com.dotcms.repackage.javax.portlet.ValidatorException;

import com.dotmarketing.util.Logger;
import com.liferay.portal.PortalException;
import com.liferay.portal.SystemException;
import com.liferay.portal.ejb.PortletManagerUtil;
import com.liferay.portal.ejb.PortletPreferencesManagerUtil;
import com.liferay.portal.ejb.PortletPreferencesPK;
import com.liferay.portal.model.Portlet;
import com.liferay.portal.util.PortalUtil;

/**
* <a href="PortletPreferencesImpl.java.html"><b><i>View Source</i></b></a>
*
* @author  Brian Wing Shun Chan
* @version $Revision: 1.22 $
*
*/
public class PortletPreferencesImpl
  implements Cloneable, PortletPreferences, Serializable {

  public PortletPreferencesImpl() {
    this(null, null, new HashMap());
  }

  public PortletPreferencesImpl(String companyId, PortletPreferencesPK pk,
                  Map preferences) {

    _companyId = companyId;
    _pk = pk;
    _preferences = preferences;
  }

  public Map getMap() {
    Map map = new HashMap();

    Iterator itr = _preferences.entrySet().iterator();

    while (itr.hasNext()) {
      Map.Entry entry = (Map.Entry)itr.next();

      String key = (String)entry.getKey();
      Preference preference = (Preference)entry.getValue();

      map.put(key, preference.getValues());
    }

    return Collections.unmodifiableMap(map);
  }

  public Enumeration getNames() {
    return Collections.enumeration(_preferences.keySet());
  }

  public String getValue(String key, String def) {
    if (key == null) {
      throw new IllegalArgumentException();
    }

    Preference preference = (Preference)_preferences.get(key);

    String[] values = null;
    if (preference != null) {
      values = preference.getValues();
    }

    if (values != null && values.length > 0) {
      return values[0];
    }
    else {
      return def;
    }
  }

  public void setValue(String key, String value) throws ReadOnlyException {
    if (key == null) {
      throw new IllegalArgumentException();
    }

    Preference preference = (Preference)_preferences.get(key);

    if (preference == null) {
      preference = new Preference(key, value);

      _preferences.put(key, preference);
    }

    if (preference.isReadOnly()) {
      throw new ReadOnlyException(key);
    }
    else {
      preference.setValues(new String[] {value});
    }
  }

  public String[] getValues(String key, String[] def) {
    if (key == null) {
      throw new IllegalArgumentException();
    }

    Preference preference = (Preference)_preferences.get(key);

    String[] values = null;
    if (preference != null) {
      values = preference.getValues();
    }

    if (values != null && values.length > 0) {
      return values;
    }
    else {
      return def;
    }
  }

  public void setValues(String key, String[] values)
    throws ReadOnlyException {

    if (key == null) {
      throw new IllegalArgumentException();
    }

    Preference preference = (Preference)_preferences.get(key);

    if (preference == null) {
      preference = new Preference(key, values);

      _preferences.put(key, preference);
    }

    if (preference.isReadOnly()) {
      throw new ReadOnlyException(key);
    }
    else {
      preference.setValues(values);
    }
  }

  public boolean isReadOnly(String key) {
    if (key == null) {
      throw new IllegalArgumentException();
    }

    Preference preference = (Preference)_preferences.get(key);

    if (preference != null && preference.isReadOnly()) {
      return true;
    }
    else {
      return false;
    }
  }

  public void reset(String key) throws ReadOnlyException {
    if (isReadOnly(key)) {
      throw new ReadOnlyException(key);
    }

    if (_defaultPreferences == null) {
      try {
        _defaultPreferences =
          PortletPreferencesManagerUtil.getDefaultPreferences(
            _companyId, _pk.portletId);
      }
      catch (Exception e) {
        Logger.error(this,e.getMessage(),e);
      }
    }

    String[] defaultValues = null;

    if (_defaultPreferences != null) {
      defaultValues = _defaultPreferences.getValues(key, defaultValues);
    }

    if (defaultValues != null) {
      setValues(key, defaultValues);
    }
    else {
      _preferences.remove(key);
    }
  }

  public void store() throws IOException, ValidatorException {
    if (_pk == null) {
      throw new UnsupportedOperationException();
    }

    try {
      Portlet portlet =
        PortletManagerUtil.getPortletById(_companyId, _pk.portletId);

      PreferencesValidator prefsValidator =
        PortalUtil.getPreferencesValidator(portlet);

      if (prefsValidator != null) {
        prefsValidator.validate(this);
      }

      PortletPreferencesManagerUtil.updatePreferences(_pk, this);
    }
    catch (PortalException pe) {
      Logger.error(this,pe.getMessage(),pe);

      throw new IOException(pe.getMessage());
    }
    catch (SystemException se) {
      throw new IOException(se.getMessage());
    }
  }

  public Object clone() {
    Map preferencesClone = new HashMap();

    Iterator itr = _preferences.entrySet().iterator();

    while (itr.hasNext()) {
      Map.Entry entry = (Map.Entry)itr.next();

      String key = (String)entry.getKey();
      Preference preference = (Preference)entry.getValue();

      preferencesClone.put(key, preference.clone());
    }

    return new PortletPreferencesImpl(_companyId, _pk, preferencesClone);
  }

  protected String getCompanyId() {
    return  _companyId;
  }

  protected PortletPreferencesPK getPrimaryKey() {
    return _pk;
  }

  protected Map getPreferences() {
    return _preferences;
  }

  private String _companyId = null;
  private PortletPreferencesPK _pk = null;
  private Map _preferences = null;
  private PortletPreferences _defaultPreferences = null;

}
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