84 lines
2.1 KiB
Java
84 lines
2.1 KiB
Java
package org.thdl.lex.commands;
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import java.util.Iterator;
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import javax.servlet.http.HttpServletRequest;
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import org.thdl.lex.DisplayHelper;
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import org.thdl.lex.LexComponentRepository;
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import org.thdl.lex.LexConstants;
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import org.thdl.lex.LexQuery;
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import org.thdl.lex.LexRepositoryException;
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import org.thdl.lex.UserSessionManager;
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import org.thdl.lex.Visit;
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import org.thdl.lex.component.ILexComponent;
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import org.thdl.lex.component.ITerm;
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/**
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* Description of the Class
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*
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* @author travis
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* @created October 1, 2003
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*/
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public class FindCommand extends LexCommand implements Command {
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//helper methods
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/**
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* Description of the Method
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*
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* @param req
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* Description of Parameter
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* @param component
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* Description of Parameter
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* @return Description of the Returned Value
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* @exception CommandException
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* Description of Exception
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* @since
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*/
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public String execute(HttpServletRequest req, ILexComponent component)
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throws CommandException {
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try {
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String msg = null;
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String next = getNext();
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Visit visit = UserSessionManager.getInstance().getVisit(
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req.getSession(true));
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DisplayHelper displayHelper = visit.getHelper();
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LexQuery query = visit.getQuery();
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query.populate(req.getParameterMap());
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if (component instanceof ITerm) {
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ITerm term = (ITerm) component;
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query.setQueryComponent(term);
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LexComponentRepository.findTermsByTerm(query);
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Iterator iterator = query.getResults().keySet().iterator();
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if (iterator.hasNext()) {
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visit.setQuery(query);
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msg = "There are " + query.getResults().size()
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+ " terms matching " + term.getTerm();
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} else {
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next = "menu.jsp";
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msg = "There were no terms matching " + term.getTerm();
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}
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}
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req.setAttribute(LexConstants.MESSAGE_REQ_ATTR, msg);
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query.setQueryComponent(null);
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return next;
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} catch (LexRepositoryException e) {
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throw new CommandException(e);
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}
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}
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//constructors
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/**
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* Constructor for the FindCommand object
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*
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* @param next
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* Description of the Parameter
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* @since
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*/
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public FindCommand(String next) {
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super(next);
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}
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}
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