/*
* SFXLinkTag.java
*
* Version: $Revision: 3705 $
*
* Date: $Date: 2009-04-11 17:02:24 +0000 (Sat, 11 Apr 2009) $
*
* Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
* Institute of Technology. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of the Hewlett-Packard Company nor the name of the
* Massachusetts Institute of Technology nor the names of their
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS 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 COPYRIGHT
* HOLDERS OR 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.
*/
package org.dspace.app.webui.jsptag;
import java.io.IOException;
import java.net.URLEncoder;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import org.dspace.content.DCPersonName;
import org.dspace.content.DCValue;
import org.dspace.content.Item;
import org.dspace.core.ConfigurationManager;
import org.dspace.core.Constants;
/**
* Renders an SFX query link. Takes one attribute - "item" which must be an Item
* object.
*
* @author Robert Tansley
* @version $Revision: 3705 $
*/
public class SFXLinkTag extends TagSupport
{
/** Item to display SFX link for */
private Item item;
public SFXLinkTag()
{
super();
}
public int doStartTag() throws JspException
{
try
{
String sfxServer = ConfigurationManager
.getProperty("sfx.server.url");
if (sfxServer == null)
{
// No SFX server - SFX linking switched off
return SKIP_BODY;
}
String sfxQuery = "";
DCValue[] titles = item.getDC("title", null, Item.ANY);
if (titles.length > 0)
{
sfxQuery = sfxQuery
+ "&title="
+ URLEncoder.encode(titles[0].value,
Constants.DEFAULT_ENCODING);
}
DCValue[] authors = item.getDC("contributor", "author", Item.ANY);
if (authors.length > 0)
{
DCPersonName dpn = new DCPersonName(authors[0].value);
sfxQuery = sfxQuery
+ "&aulast="
+ URLEncoder.encode(dpn.getLastName(),
Constants.DEFAULT_ENCODING);
sfxQuery = sfxQuery
+ "&aufirst="
+ URLEncoder.encode(dpn.getFirstNames(),
Constants.DEFAULT_ENCODING);
}
DCValue[] isbn = item.getDC("identifier", "isbn", Item.ANY);
if (isbn.length > 0)
{
sfxQuery = sfxQuery
+ "&isbn="
+ URLEncoder.encode(isbn[0].value,
Constants.DEFAULT_ENCODING);
}
DCValue[] issn = item.getDC("identifier", "issn", Item.ANY);
if (issn.length > 0)
{
sfxQuery = sfxQuery
+ "&issn="
+ URLEncoder.encode(issn[0].value,
Constants.DEFAULT_ENCODING);
}
DCValue[] dates = item.getDC("date", "issued", Item.ANY);
if (dates.length > 0)
{
String fullDate = dates[0].value;
// Remove the time if there is one - day is greatest granularity
// for SFX
if (fullDate.length() > 10)
{
fullDate = fullDate.substring(0, 10);
}
sfxQuery = sfxQuery
+ "&date="
+ URLEncoder.encode(fullDate,
Constants.DEFAULT_ENCODING);
}
// Remove initial &, if any
if (sfxQuery.startsWith("&"))
{
sfxQuery = sfxQuery.substring(1);
}
pageContext.getOut().print(sfxServer + sfxQuery);
}
catch (IOException ie)
{
throw new JspException(ie);
}
return SKIP_BODY;
}
/**
* Get the item this tag should display SFX Link for
*
* @return the item
*/
public Item getItem()
{
return item;
}
/**
* Set the item this tag should display SFX Link for
*
* @param itemIn
* the item
*/
public void setItem(Item itemIn)
{
item = itemIn;
}
}