| package org.apache.turbine.services.intake; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache Turbine" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache Turbine", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.fulcrum.intake.Intake; |
| import org.apache.fulcrum.intake.IntakeException; |
| import org.apache.fulcrum.intake.Retrievable; |
| import org.apache.fulcrum.intake.model.Group; |
| |
| import org.apache.turbine.services.pull.ApplicationTool; |
| import org.apache.turbine.util.RunData; |
| import org.apache.turbine.util.parser.ValueParser; |
| import org.apache.turbine.util.pool.Recyclable; |
| |
| /** |
| * The main class through which Intake is accessed. Provides easy access |
| * to the Fulcrum Intake component. |
| * |
| * @author <a href="mailto:jmcnally@collab.net">John D. McNally</a> |
| * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
| * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a> |
| * @author <a href="mailto:epugh@upstate.com">Eric Pugh</a> |
| * @version $Id$ |
| */ |
| public class IntakeTool |
| implements ApplicationTool, Recyclable |
| { |
| /** Used for logging */ |
| private static Log log = LogFactory.getLog(IntakeTool.class); |
| |
| /** Constant for default key */ |
| public static final String DEFAULT_KEY = "_0"; |
| |
| /** Constant for the hidden fieldname */ |
| public static final String INTAKE_GRP = "intake-grp"; |
| |
| /** Groups from intake.xml */ |
| private HashMap groups; |
| |
| /** ValueParser instance */ |
| private ValueParser pp; |
| |
| HashMap declaredGroups = new HashMap(); |
| StringBuffer allGroupsSB = new StringBuffer(256); |
| StringBuffer groupSB = new StringBuffer(128); |
| |
| /** The cache of PullHelpers. **/ |
| private Map pullMap; |
| |
| /** |
| * Constructor |
| */ |
| public IntakeTool() |
| { |
| String[] groupNames = Intake.getGroupNames(); |
| int groupCount = 0; |
| if (groupNames != null) |
| { |
| groupCount = groupNames.length; |
| } |
| groups = new HashMap((int) (1.25 * groupCount + 1)); |
| pullMap = new HashMap((int) (1.25 * groupCount + 1)); |
| |
| for (int i = groupCount - 1; i >= 0; i--) |
| { |
| pullMap.put(groupNames[i], new PullHelper(groupNames[i])); |
| } |
| } |
| |
| /** |
| * Prepares intake for a single request |
| */ |
| public void init(Object runData) |
| { |
| this.pp = ((RunData) runData).getParameters(); |
| |
| String[] groupKeys = pp.getStrings(INTAKE_GRP); |
| String[] groupNames = null; |
| if (groupKeys == null || groupKeys.length == 0) |
| { |
| groupNames = Intake.getGroupNames(); |
| } |
| else |
| { |
| groupNames = new String[groupKeys.length]; |
| for (int i = groupKeys.length - 1; i >= 0; i--) |
| { |
| groupNames[i] = Intake.getGroupName(groupKeys[i]); |
| } |
| |
| } |
| |
| for (int i = groupNames.length - 1; i >= 0; i--) |
| { |
| try |
| { |
| List foundGroups = Intake.getGroup(groupNames[i]) |
| .getObjects(pp); |
| |
| if (foundGroups != null) |
| { |
| for (Iterator iter = foundGroups.iterator(); |
| iter.hasNext();) |
| { |
| Group group = (Group) iter.next(); |
| groups.put(group.getObjectKey(), group); |
| } |
| } |
| } |
| catch (Exception e) |
| { |
| log.error(e); |
| } |
| } |
| } |
| |
| public void addGroupsToParameters(ValueParser vp) |
| { |
| for (Iterator i = groups.values().iterator(); i.hasNext();) |
| { |
| Group group = (Group) i.next(); |
| if (!declaredGroups.containsKey(group.getIntakeGroupName())) |
| { |
| declaredGroups.put(group.getIntakeGroupName(), null); |
| vp.add("intake-grp", group.getGID()); |
| } |
| vp.add(group.getGID(), group.getOID()); |
| } |
| declaredGroups.clear(); |
| } |
| |
| /** |
| * A convenience method to write out the hidden form fields |
| * that notify intake of the relevant groups. It should be used |
| * only in templates with 1 form. In multiform templates, the groups |
| * that are relevant for each form need to be declared using |
| * $intake.newForm() and $intake.declareGroup($group) for the relevant |
| * groups in the form. |
| * |
| */ |
| public String declareGroups() |
| { |
| allGroupsSB.setLength(0); |
| for (Iterator i = groups.values().iterator(); i.hasNext();) |
| { |
| declareGroup((Group) i.next(), allGroupsSB); |
| } |
| return allGroupsSB.toString(); |
| } |
| |
| /** |
| * A convenience method to write out the hidden form fields |
| * that notify intake of the group. |
| */ |
| public String declareGroup(Group group) |
| { |
| groupSB.setLength(0); |
| declareGroup(group, groupSB); |
| return groupSB.toString(); |
| } |
| |
| /** |
| * xhtml valid hidden input field(s) that notifies intake of the |
| * group's presence. |
| */ |
| public void declareGroup(Group group, StringBuffer sb) |
| { |
| if (!declaredGroups.containsKey(group.getIntakeGroupName())) |
| { |
| declaredGroups.put(group.getIntakeGroupName(), null); |
| sb.append("<input type=\"hidden\" name=\"") |
| .append(INTAKE_GRP) |
| .append("\" value=\"") |
| .append(group.getGID()) |
| .append("\"/>\n"); |
| } |
| group.appendHtmlFormInput(sb); |
| } |
| |
| public void newForm() |
| { |
| declaredGroups.clear(); |
| for (Iterator i = groups.values().iterator(); i.hasNext();) |
| { |
| ((Group) i.next()).resetDeclared(); |
| } |
| } |
| |
| /** |
| * Implementation of ApplicationTool interface is not needed for this |
| * tool as it is request scoped |
| */ |
| public void refresh() |
| { |
| // empty |
| } |
| |
| /** |
| * Inner class to present a nice interface to the template designer |
| */ |
| public class PullHelper |
| { |
| /** Name of the group used by the pull helper */ |
| String groupName; |
| |
| /** |
| * Private constructor to force use of factory method. |
| * |
| * @param groupName |
| */ |
| private PullHelper(String groupName) |
| { |
| this.groupName = groupName; |
| } |
| |
| /** |
| * Populates the object with the default values from the XML File |
| * |
| * @return a Group object with the default values |
| * @throws IntakeException |
| */ |
| public Group getDefault() |
| throws IntakeException |
| { |
| return setKey(DEFAULT_KEY); |
| } |
| |
| /** |
| * Calls setKey(key,true) |
| * |
| * @param key |
| * @return an Intake Group |
| * @throws IntakeException |
| */ |
| public Group setKey(String key) |
| throws IntakeException |
| { |
| return setKey(key, true); |
| } |
| |
| /** |
| * |
| * @param key |
| * @param create |
| * @return an Intake Group |
| * @throws IntakeException |
| */ |
| public Group setKey(String key, boolean create) |
| throws IntakeException |
| { |
| Group g = null; |
| |
| String inputKey = Intake.getGroupKey(groupName) + key; |
| if (groups.containsKey(inputKey)) |
| { |
| g = (Group) groups.get(inputKey); |
| } |
| else if (create) |
| { |
| g = Intake.getGroup(groupName); |
| groups.put(inputKey, g); |
| g.init(key, pp); |
| } |
| |
| return g; |
| } |
| |
| /** |
| * maps an Intake Group to the values from a Retrievable object. |
| * |
| * @param obj A retrievable object |
| * @return an Intake Group |
| */ |
| public Group mapTo(Retrievable obj) |
| throws IntakeException |
| { |
| Group g = null; |
| |
| try |
| { |
| String inputKey = Intake.getGroupKey(groupName) |
| + obj.getQueryKey(); |
| if (groups.containsKey(inputKey)) |
| { |
| g = (Group) groups.get(inputKey); |
| } |
| else |
| { |
| g = Intake.getGroup(groupName); |
| groups.put(inputKey, g); |
| } |
| |
| return g.init(obj); |
| } |
| catch (Exception e) |
| { |
| log.error(e); |
| } |
| |
| return null; |
| } |
| } |
| |
| /** |
| * get a specific group |
| */ |
| public PullHelper get(String groupName) |
| throws IntakeException |
| { |
| return (PullHelper) pullMap.get(groupName); |
| } |
| |
| /** |
| * Get a specific group |
| * |
| * @param throwExceptions if false, exceptions will be supressed. |
| * @throws IntakeException could not retrieve group |
| */ |
| public PullHelper get(String groupName, boolean throwExceptions) |
| throws IntakeException |
| { |
| return (PullHelper) pullMap.get(groupName); |
| } |
| |
| /** |
| * Loops through all of the Groups and checks to see if |
| * the data within the Group is valid. |
| */ |
| public boolean isAllValid() |
| { |
| boolean allValid = true; |
| for (Iterator iter = groups.values().iterator(); iter.hasNext();) |
| { |
| Group group = (Group) iter.next(); |
| allValid &= group.isAllValid(); |
| } |
| return allValid; |
| } |
| |
| /** |
| * Get a specific group by name and key. |
| */ |
| public Group get(String groupName, String key) |
| throws IntakeException |
| { |
| if (groupName == null) |
| { |
| throw new IntakeException("Intake.get: groupName == null"); |
| } |
| if (key == null) |
| { |
| throw new IntakeException("Intake.get: key == null"); |
| } |
| |
| PullHelper ph = get(groupName); |
| return (ph == null) ? null : ph.setKey(key); |
| } |
| |
| /** |
| * Get a specific group by name and key. Also specify |
| * whether or not you want to create a new group. |
| */ |
| public Group get(String groupName, String key, boolean create) |
| throws IntakeException |
| { |
| if (groupName == null) |
| { |
| throw new IntakeException("Intake.get: groupName == null"); |
| } |
| if (key == null) |
| { |
| throw new IntakeException("Intake.get: key == null"); |
| } |
| |
| PullHelper ph = get(groupName); |
| return (ph == null) ? null : ph.setKey(key, create); |
| } |
| |
| /** |
| * Removes group. Primary use is to remove a group that has |
| * been processed by an action and is no longer appropriate |
| * in the view (screen). |
| */ |
| public void remove(Group group) |
| { |
| if (group != null) |
| { |
| groups.remove(group.getObjectKey()); |
| group.removeFromRequest(); |
| |
| String[] groupKeys = pp.getStrings(INTAKE_GRP); |
| |
| pp.remove(INTAKE_GRP); |
| |
| if (groupKeys != null) |
| { |
| for (int i = 0; i < groupKeys.length; i++) |
| { |
| if (!groupKeys[i].equals(group.getGID())) |
| { |
| pp.add(INTAKE_GRP, groupKeys[i]); |
| } |
| } |
| } |
| |
| |
| try |
| { |
| Intake.releaseGroup(group); |
| } |
| catch (IntakeException ie) |
| { |
| log.error("Tried to release unknown group " |
| + group.getIntakeGroupName()); |
| } |
| } |
| } |
| |
| /** |
| * Removes all groups. Primary use is to remove groups that have |
| * been processed by an action and are no longer appropriate |
| * in the view (screen). |
| */ |
| public void removeAll() |
| { |
| Object[] allGroups = groups.values().toArray(); |
| for (int i = allGroups.length - 1; i >= 0; i--) |
| { |
| Group group = (Group) allGroups[i]; |
| remove(group); |
| } |
| } |
| |
| /** |
| * Get a Map containing all the groups. |
| * |
| * @return the Group Map |
| */ |
| public Map getGroups() |
| { |
| return groups; |
| } |
| |
| // ****************** Recyclable implementation ************************ |
| |
| private boolean disposed; |
| |
| /** |
| * Recycles the object for a new client. Recycle methods with |
| * parameters must be added to implementing object and they will be |
| * automatically called by pool implementations when the object is |
| * taken from the pool for a new client. The parameters must |
| * correspond to the parameters of the constructors of the object. |
| * For new objects, constructors can call their corresponding recycle |
| * methods whenever applicable. |
| * The recycle methods must call their super. |
| */ |
| public void recycle() |
| { |
| disposed = false; |
| } |
| |
| /** |
| * Disposes the object after use. The method is called |
| * when the object is returned to its pool. |
| * The dispose method must call its super. |
| */ |
| public void dispose() |
| { |
| for (Iterator iter = groups.values().iterator(); iter.hasNext();) |
| { |
| Group g = (Group) iter.next(); |
| |
| try |
| { |
| Intake.releaseGroup(g); |
| } |
| catch (IntakeException ie) |
| { |
| log.error("Tried to release unknown group " |
| + g.getIntakeGroupName()); |
| } |
| } |
| |
| groups.clear(); |
| declaredGroups.clear(); |
| pp = null; |
| |
| disposed = true; |
| } |
| |
| /** |
| * Checks whether the recyclable has been disposed. |
| * |
| * @return true, if the recyclable is disposed. |
| */ |
| public boolean isDisposed() |
| { |
| return disposed; |
| } |
| } |